Merge branch 'qbolt-go'

.gitignore

@@ -1,4 +1,16 @@
-build-qbolt-*
+# development
+qbolt
 dummy-data/dummy-data*
-*.pro.user$
+
-build/
+# temporary build files
+rsrc_windows_amd64.syso
+windows-manifest.json
+
+# release build files
+build/qbolt
+build/qbolt.exe
+build/*.xz
+build/*.zip
+
+# local makefile definition scripts
+make-*

Makefile

@@ -1,72 +1,60 @@
 
-export PATH := /usr/lib/mxe/usr/bin:$(PATH)
+VERSION := 1.0.3
-GOFLAGS := -ldflags='-s -w' -gcflags='-trimpath=$(CURDIR)' -asmflags='-trimpath=$(CURDIR)'
+GOFLAGS_L := -ldflags='-s -w -X main.Version=v$(VERSION)' -buildvcs=false -gcflags='-trimpath=$(CURDIR)' -asmflags='-trimpath=$(CURDIR)'
-VERSION := 1.0.2
+GOFLAGS_W := -ldflags='-s -w -X main.Version=v$(VERSION) -H windowsgui' -buildvcs=false --tags=windowsqtstatic -gcflags='-trimpath=$(CURDIR)' -asmflags='-trimpath=$(CURDIR)'
+SHELL := /bin/bash
+# Allow overriding DOCKER with e.g. sudo docker
+DOCKER := docker
+MIQT_UIC := miqt-uic
+MIQT_RCC := miqt-rcc
+GO_WINRES := go-winres
+SOURCES := $(wildcard *.go *.ui *.qrc) resources.go mainwindow_ui.go itemwindow_ui.go rsrc_windows_amd64.syso
 
-.PHONY: all libs dist clean
+.PHONY: all
-
+all: build/qbolt build/qbolt.exe
-all: \
-	build/linux/qbolt \
-	build/win32/release/qbolt.exe
-
-libs: \
-	build/linux/qbolt.a \
-	build/win32/qbolt.a
 	
-dist: \
+.PHONY: dist
-	build/dist/qbolt-${VERSION}-win32.zip \
+dist: build/qbolt-${VERSION}-windows-x86_64.zip build/qbolt-${VERSION}-debian12-x86_64.tar.xz
-	build/dist/qbolt-${VERSION}-linux_amd64.tar.xz
 
+.PHONY: clean
 clean:
-	if [ -f qbolt/qbolt.a ] ; then rm qbolt/qbolt.a ; fi
+	rm -f qbolt || true
-	if [ -f qbolt ] ; then rm qbolt ; fi
+	rm -rf build || true
-	if [ -d build ] ; then rm -r build ; fi
+	rm -f windows-manifest.json || true
 	
-# Build core golang shared library (linux)
+# Generated files
 	
-build/linux/qbolt.a: *.go
+resources.rcc resources.go: resources.qrc
-	mkdir -p build/linux
+	$(MIQT_RCC) resources.qrc
-	go build ${GOFLAGS} -buildmode=c-archive -o build/linux/qbolt.a
 	
-# Build core golang shared library (win32)
+mainwindow_ui.go: mainwindow.ui
+	$(MIQT_UIC) -InFile mainwindow.ui -OutFile mainwindow_ui.go
+
+itemwindow_ui.go: itemwindow.ui
+	$(MIQT_UIC) -InFile itemwindow.ui -OutFile itemwindow_ui.go
 	
-build/win32/qbolt.a: *.go
+windows-manifest.json: windows-manifest.template.json Makefile
-	mkdir -p build/win32
+	cat windows-manifest.template.json | sed -re 's_%VERSION%_$(VERSION)_' > windows-manifest.json
-	CC=/usr/lib/mxe/usr/bin/i686-w64-mingw32.static-gcc CGO_ENABLED=1 GOARCH=386 GOOS=windows \
-		go build ${GOFLAGS} -buildmode=c-archive -o build/win32/qbolt.a
-
-# Linux binaries
 	
-build/linux/qbolt: build/linux/qbolt.a qbolt/*
+rsrc_windows_amd64.syso: windows-manifest.json
-	cd build/linux && qmake ../../qbolt/qbolt.pro && make
+	$(GO_WINRES) make --in windows-manifest.json
-
+	rm rsrc_windows_386.syso || true # we do not build x86_32
-# Linux distribution
-
-build/dist/qbolt-${VERSION}-linux_amd64.tar.xz: build/linux/qbolt
-	XZ_OPTS=-9 tar caf build/dist/qbolt-${VERSION}-linux_amd64.tar.xz -C build/linux qbolt --owner=0 --group=0
 	
-# Windows binaries
+# Linux release
-
-build/win32/release/qbolt.exe: build/win32/qbolt.a qbolt/*
-	cd build/win32 && i686-w64-mingw32.static-qmake-qt5 ../../qbolt/qbolt.pro && make
-
-# Dockerized Windows build
-
-.PHONY: build-docker-build-environment
-build-docker-build-environment:
-	cd docker && docker build -t win32-cross-qt-mxe:latest -f win32-cross-qt-mxe.Dockerfile 
-
-.PHONY: build-windows-in-docker
-build-windows-in-docker:
-	docker run --rm -v $(CURDIR):/qbolt win32-cross-qt-mxe:latest /bin/sh -c 'cd /qbolt && make build/win32/release/qbolt.exe'
-
-# Windows distribution
-
-build/win32/dist/qbolt.exe: build/win32/release/qbolt.exe
-	mkdir -p build/win32/dist
-	cp build/win32/release/qbolt.exe build/win32/dist/qbolt.exe
-#	upx --lzma build/win32/dist/qbolt.exe
 	
-build/dist/qbolt-${VERSION}-win32.zip: build/win32/dist/qbolt.exe
+build/qbolt: $(SOURCES)
-	mkdir -p build/dist
+	go build $(GOFLAGS_L) -o build/qbolt
-	zip -0 -j build/dist/qbolt-${VERSION}-win32.zip build/win32/dist/qbolt.exe
+	upx build/qbolt
+
+build/qbolt-${VERSION}-debian12-x86_64.tar.xz: build/qbolt
+	XZ_OPTS=-9e tar caf build/qbolt-${VERSION}-debian12-x86_64.tar.xz -C build qbolt --owner=0 --group=0
+	
+# Windows release (docker)
+
+build/qbolt.exe: $(SOURCES)
+	( $(DOCKER) image ls | fgrep qbolt-win64-cross ) || ( cd docker && $(DOCKER) build -t qbolt-win64-cross:latest -f win64-cross.Dockerfile . )
+	$(DOCKER) run --rm -v $(CURDIR):/qbolt -w /qbolt qbolt-win64-cross:latest /bin/sh -c "go build $(GOFLAGS_W) -o build/qbolt.exe"
+	upx --force build/qbolt.exe
+
+build/qbolt-${VERSION}-windows-x86_64.zip: build/qbolt.exe
+	zip -9 -j build/qbolt-${VERSION}-windows-x86_64.zip build/qbolt.exe

MemoryStore.go

@@ -1,56 +0,0 @@
-package main
-
-import "C"
-import (
-	"errors"
-	"sync"
-)
-
-type ObjectReference int64
-
-var NullObjectReference error = errors.New("Null object reference")
-
-// GoMemoryStore is a int->interface storage structure so that Go pointers are
-// never exposed to C code.
-type GoMemoryStore struct {
-	mtx   sync.RWMutex
-	items map[int64]interface{}
-	next  int64
-}
-
-func NewGoMemoryStore() *GoMemoryStore {
-	ret := GoMemoryStore{}
-	ret.items = make(map[int64]interface{})
-	return &ret
-}
-
-func (this *GoMemoryStore) Put(itm interface{}) ObjectReference {
-	this.mtx.Lock()
-	defer this.mtx.Unlock()
-
-	key := this.next
-	this.items[key] = itm
-	this.next++
-	return ObjectReference(key)
-}
-
-func (this *GoMemoryStore) Get(i ObjectReference) (interface{}, bool) {
-	this.mtx.RLock()
-	defer this.mtx.RUnlock()
-
-	ret, ok := this.items[int64(i)]
-	return ret, ok
-}
-
-func (this *GoMemoryStore) Delete(i ObjectReference) {
-	this.mtx.Lock()
-	defer this.mtx.Unlock()
-
-	delete(this.items, int64(i))
-}
-
-var gms *GoMemoryStore = nil
-
-func init() {
-	gms = NewGoMemoryStore()
-}

bolt.go

@@ -0,0 +1,219 @@
+package main
+
+import (
+	"encoding/json"
+	"errors"
+	"os"
+	"time"
+
+	bolt "go.etcd.io/bbolt"
+)
+
+func Bolt_Open(readOnly bool, path string) (*bolt.DB, error) {
+	opts := *bolt.DefaultOptions
+	opts.Timeout = 10 * time.Second
+	opts.ReadOnly = readOnly
+
+	return bolt.Open(path, os.FileMode(0644), &opts)
+}
+
+func walkBuckets(tx *bolt.Tx, browse []string) (*bolt.Bucket, error) {
+	bucket := tx.Bucket([]byte(browse[0]))
+	if bucket == nil {
+		return nil, errors.New("Unknown bucket")
+	}
+
+	for i := 1; i < len(browse); i += 1 {
+		bucket = bucket.Bucket([]byte(browse[i]))
+		if bucket == nil {
+			return nil, errors.New("Unknown bucket")
+		}
+	}
+
+	return bucket, nil
+}
+
+func withBrowse_ReadOnly(db *bolt.DB, browse []string, fn func(tx *bolt.Tx, bucket *bolt.Bucket) error) error {
+	if len(browse) == 0 {
+		// not a bucket
+		return errors.New("No bucket selected")
+	}
+
+	return db.View(func(tx *bolt.Tx) error {
+
+		bucket, err := walkBuckets(tx, browse)
+		if err != nil {
+			return err
+		}
+
+		// Walked the bucket chain, now run the user callback
+		return fn(tx, bucket)
+
+	})
+}
+
+func Bolt_CreateBucket(db *bolt.DB, browse []string, newBucket string) error {
+
+	return db.Update(func(tx *bolt.Tx) error {
+
+		if len(browse) == 0 {
+			// Top-level bucket
+			_, err := tx.CreateBucket([]byte(newBucket))
+			return err
+
+		} else {
+			// Deeper bucket
+			bucket, err := walkBuckets(tx, browse)
+			if err != nil {
+				return err
+			}
+
+			// Walked the bucket chain, now create the new bucket
+			_, err = bucket.CreateBucket([]byte(newBucket))
+			return err
+		}
+	})
+}
+
+func Bolt_DeleteBucket(db *bolt.DB, browse []string, delBucket string) error {
+	return db.Update(func(tx *bolt.Tx) error {
+
+		if len(browse) == 0 {
+			// Top-level bucket
+			return tx.DeleteBucket([]byte(delBucket))
+
+		} else {
+			// Deeper bucket
+			bucket, err := walkBuckets(tx, browse)
+			if err != nil {
+				return err
+			}
+
+			// Walked the bucket chain, now delete the selected bucket
+			return bucket.DeleteBucket([]byte(delBucket))
+		}
+	})
+}
+
+func Bolt_SetItem(db *bolt.DB, browse []string, key, val string) error {
+	if len(browse) == 0 {
+		return errors.New("Can't create top-level items")
+	}
+
+	return db.Update(func(tx *bolt.Tx) error {
+
+		bucket, err := walkBuckets(tx, browse)
+		if err != nil {
+			return err
+		}
+
+		return bucket.Put([]byte(key), []byte(val))
+	})
+}
+
+func Bolt_DeleteItem(db *bolt.DB, browse []string, key string) error {
+	if len(browse) == 0 {
+		return errors.New("Can't create top-level items")
+	}
+
+	return db.Update(func(tx *bolt.Tx) error {
+
+		bucket, err := walkBuckets(tx, browse)
+		if err != nil {
+			return err
+		}
+
+		return bucket.Delete([]byte(key))
+	})
+}
+
+func Bolt_DBStats(db *bolt.DB) (string, error) {
+	jBytes, err := json.MarshalIndent(db.Stats(), "", "  ")
+	if err != nil {
+		return "", err
+	}
+
+	return string(jBytes), nil
+}
+
+func Bolt_BucketStats(db *bolt.DB, browse []string) (string, error) {
+	var stats bolt.BucketStats
+
+	err := withBrowse_ReadOnly(db, browse, func(tx *bolt.Tx, bucket *bolt.Bucket) error {
+		stats = bucket.Stats()
+		return nil
+	})
+	if err != nil {
+		return "", err
+	}
+
+	jBytes, err := json.MarshalIndent(stats, "", "  ")
+	if err != nil {
+		return "", err
+	}
+
+	return string(jBytes), err
+}
+
+func Bolt_ListBuckets(db *bolt.DB, browse []string, cb func(b string)) error {
+
+	if len(browse) == 0 {
+		// root mode
+		return db.View(func(tx *bolt.Tx) error {
+			return tx.ForEach(func(k []byte, _ *bolt.Bucket) error {
+				cb(string(k))
+				return nil
+			})
+		})
+
+	}
+
+	// Nested-mode
+	return withBrowse_ReadOnly(db, browse, func(tx *bolt.Tx, bucket *bolt.Bucket) error {
+		return bucket.ForEach(func(k, v []byte) error {
+			// non-nil v means it's a data item
+			if v == nil {
+				cb(string(k))
+			}
+			return nil
+		})
+	})
+}
+
+type ListItemInfo struct {
+	Name    string
+	DataLen int64
+}
+
+func Bolt_ListItems(db *bolt.DB, browse []string, cb func(ListItemInfo) error) error {
+
+	if len(browse) == 0 {
+		return errors.New("No bucket specified")
+	}
+
+	// Nested-mode
+	return withBrowse_ReadOnly(db, browse, func(tx *bolt.Tx, bucket *bolt.Bucket) error {
+		return bucket.ForEach(func(k, v []byte) error {
+			if v == nil {
+				return nil // nil v means it's a bucket, skip
+			}
+
+			return cb(ListItemInfo{string(k), int64(len(v))})
+		})
+	})
+}
+
+func Bolt_GetItem(db *bolt.DB, browse []string, key string) (string, error) {
+	var ret string
+
+	err := withBrowse_ReadOnly(db, browse, func(tx *bolt.Tx, bucket *bolt.Bucket) error {
+		d := bucket.Get([]byte(key))
+		ret = string(d)
+		return nil
+	})
+	return ret, err
+}
+
+func Bolt_Close(db *bolt.DB) error {
+	return db.Close()
+}

docker/win64-cross.Dockerfile

@@ -1,13 +1,20 @@
-FROM debian:bullseye
+FROM golang:1.23-bookworm
 
 RUN DEBIAN_FRONTEND=noninteractive apt-get update && \
-    apt-get install -qyy gnupg2 golang-go ca-certificates
+    apt-get install -qyy gnupg2 ca-certificates
-
+    
 RUN DEBIAN_FRONTEND=noninteractive \
     echo "deb https://pkg.mxe.cc/repos/apt buster main" >/etc/apt/sources.list.d/mxeapt.list && \
     apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 86B72ED9 && \
     apt-get update && \
-    apt-get install -qyy mxe-i686-w64-mingw32.static-qt5 && \
+    apt-get install -qyy mxe-x86-64-w64-mingw32.static-qt5 && \
     apt-get clean
 
 ENV PATH=/usr/lib/mxe/usr/bin:$PATH
+
+ENV CXX=x86_64-w64-mingw32.static-g++
+ENV CC=x86_64-w64-mingw32.static-gcc
+ENV PKG_CONFIG=x86_64-w64-mingw32.static-pkg-config
+ENV GOOS=windows
+ENV CGO_ENABLED=1
+ 

dummy-data/main.go

@@ -1,11 +1,10 @@
 package main
 
 import (
-	//"fmt"
 	"math/rand"
 	"os"
 
-	bolt "github.com/boltdb/bolt"
+	bolt "go.etcd.io/bbolt"
 )
 
 func random_name() string {

go.mod

@@ -1,7 +1,10 @@
 module code.ivysaur.me/qbolt
 
-go 1.15
+go 1.23
 
-require github.com/boltdb/bolt v1.3.1
+require (
+	github.com/mappu/miqt v0.5.0
+	go.etcd.io/bbolt v1.3.11
+)
 
-replace github.com/boltdb/bolt => go.etcd.io/bbolt v1.3.5
+require golang.org/x/sys v0.4.0 // indirect

go.sum

@@ -1,5 +1,11 @@
-github.com/boltdb/bolt v1.3.1 h1:JQmyP4ZBrce+ZQu0dY660FMfatumYDLun9hBCUVIkF4=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
-github.com/boltdb/bolt v1.3.1/go.mod h1:clJnj/oiGkjum5o1McbSZDSLxVThjynRyGBgiAx27Ps=
+github.com/mappu/miqt v0.5.0 h1:BWajkNI9PWlWN6ZDgWKwv1gieBGEImRqlWS8ZqDmDfA=
-go.etcd.io/bbolt v1.3.5 h1:XAzx9gjCb0Rxj7EoqcClPD1d5ZBxZJk0jbuoPHenBt0=
+github.com/mappu/miqt v0.5.0/go.mod h1:xFg7ADaO1QSkmXPsPODoKe/bydJpRG9fgCYyIDl/h1U=
-go.etcd.io/bbolt v1.3.5/go.mod h1:G5EMThwa9y8QZGBClrRx5EY+Yw9kAhnjy3bSjsnlVTQ=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
-golang.org/x/sys v0.0.0-20200202164722-d101bd2416d5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKsk=
+go.etcd.io/bbolt v1.3.11 h1:yGEzV1wPz2yVCLsD8ZAiGHhHVlczyC9d1rP43/VCRJ0=
+go.etcd.io/bbolt v1.3.11/go.mod h1:dksAq7YMXoljX0xu6VF5DMZGbhYYoLUalEiSySYAS4I=
+golang.org/x/sync v0.5.0 h1:60k92dhOjHxJkrqnwsfl8KuaHbn/5dl0lUPUklKo3qE=
+golang.org/x/sys v0.4.0 h1:Zr2JFtRQNX3BCZ8YtxRE9hNJYC8J6I1MVbMg6owUp18=
+golang.org/x/sys v0.4.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=

itemwindow.ui

@@ -42,12 +42,6 @@
    </item>
    <item row="1" column="0">
     <widget class="QFrame" name="frame">
-     <property name="frameShape">
-      <enum>QFrame::StyledPanel</enum>
-     </property>
-     <property name="frameShadow">
-      <enum>QFrame::Raised</enum>
-     </property>
      <layout class="QGridLayout" name="gridLayout">
       <item row="0" column="0">
        <widget class="QDialogButtonBox" name="buttonBox">

itemwindow_ui.go

@@ -0,0 +1,71 @@
+// Generated by miqt-uic. To update this file, edit the .ui file in
+// Qt Designer, and then run 'go generate'.
+//
+//go:generate miqt-uic -InFile itemwindow.ui -OutFile itemwindow_ui.go
+
+package main
+
+import (
+	"github.com/mappu/miqt/qt"
+)
+
+type ItemWindowUi struct {
+	ItemWindow   *qt.QDialog
+	gridLayout_2 *qt.QGridLayout
+	contentArea  *qt.QPlainTextEdit
+	frame        *qt.QFrame
+	gridLayout   *qt.QGridLayout
+	buttonBox    *qt.QDialogButtonBox
+}
+
+// NewItemWindowUi creates all Qt widget classes for ItemWindow.
+func NewItemWindowUi() *ItemWindowUi {
+	ui := &ItemWindowUi{}
+
+	ui.ItemWindow = qt.NewQDialog2(nil)
+	ui.ItemWindow.SetObjectName("ItemWindow")
+	ui.ItemWindow.Resize(370, 353)
+	ui.ItemWindow.SetWindowTitle("")
+	icon0 := qt.NewQIcon()
+	icon0.AddFile4(":/rsrc/database_lightning.png", qt.NewQSize(), qt.QIcon__Normal, qt.QIcon__Off)
+	ui.ItemWindow.SetWindowIcon(icon0)
+
+	ui.gridLayout_2 = qt.NewQGridLayout(ui.ItemWindow.QWidget)
+	ui.gridLayout_2.SetObjectName("gridLayout_2")
+	ui.gridLayout_2.SetVerticalSpacing(0)
+	ui.gridLayout_2.SetContentsMargins(0, 0, 0, 0)
+	ui.gridLayout_2.SetSpacing(6)
+
+	ui.contentArea = qt.NewQPlainTextEdit3(ui.ItemWindow.QWidget)
+	ui.contentArea.SetObjectName("contentArea")
+	ui.contentArea.SetFrameShape(qt.QFrame__NoFrame)
+
+	ui.gridLayout_2.AddWidget2(ui.contentArea.QWidget, 0, 0)
+
+	ui.frame = qt.NewQFrame2(ui.ItemWindow.QWidget)
+	ui.frame.SetObjectName("frame")
+
+	ui.gridLayout = qt.NewQGridLayout(ui.frame.QWidget)
+	ui.gridLayout.SetObjectName("gridLayout")
+	ui.gridLayout.SetContentsMargins(11, 11, 11, 11)
+	ui.gridLayout.SetSpacing(6)
+
+	ui.buttonBox = qt.NewQDialogButtonBox5(ui.frame.QWidget)
+	ui.buttonBox.SetObjectName("buttonBox")
+	ui.buttonBox.SetStandardButtons(qt.QDialogButtonBox__Cancel | qt.QDialogButtonBox__Save)
+	ui.buttonBox.OnAccepted(ui.ItemWindow.Accept)
+	ui.buttonBox.OnRejected(ui.ItemWindow.Reject)
+
+	ui.gridLayout.AddWidget2(ui.buttonBox.QWidget, 0, 0)
+
+	ui.gridLayout_2.AddWidget2(ui.frame.QWidget, 1, 0)
+
+	ui.Retranslate()
+
+	return ui
+}
+
+// Retranslate reapplies all text translations.
+func (ui *ItemWindowUi) Retranslate() {
+
+}

main.go

@@ -1,398 +1,22 @@
 package main
 
-import "C"
 import (
-	"encoding/binary"
-	"encoding/json"
-	"errors"
 	"os"
-	"time"
 
-	bolt "github.com/boltdb/bolt"
+	"github.com/mappu/miqt/qt"
 )
 
-const (
+var Version string = "v0.0.0-devel"
-	ERROR_AND_STOP_CALLING int64 = 100
-	ERROR_AND_KEEP_CALLING       = 101
-	FINISHED_OK                  = 102
-	REAL_MESSAGE                 = 103
-)
-
-const Magic int64 = 0x10203040
-
-//export GetMagic
-func GetMagic() int64 {
-	return Magic
-}
-
-//export Bolt_Open
-func Bolt_Open(readOnly bool, path string) (ObjectReference, *C.char, int) {
-	opts := *bolt.DefaultOptions
-	opts.Timeout = 10 * time.Second
-	opts.ReadOnly = readOnly
-
-	ptrDB, err := bolt.Open(path, os.FileMode(0644), &opts)
-	if err != nil {
-		errMsg := err.Error()
-		return 0, C.CString(errMsg), len(errMsg)
-	}
-
-	dbRef := gms.Put(ptrDB)
-	return dbRef, nil, 0
-}
-
-func withBoltDBReference(b ObjectReference, fn func(db *bolt.DB) error) error {
-	dbIFC, ok := gms.Get(b)
-	if !ok {
-		return NullObjectReference
-	}
-
-	ptrDB, ok := dbIFC.(*bolt.DB)
-	if !ok {
-		return NullObjectReference
-	}
-
-	return fn(ptrDB)
-}
-
-func walkBuckets(tx *bolt.Tx, browse []string) (*bolt.Bucket, error) {
-	bucket := tx.Bucket([]byte(browse[0]))
-	if bucket == nil {
-		return nil, errors.New("Unknown bucket")
-	}
-
-	for i := 1; i < len(browse); i += 1 {
-		bucket = bucket.Bucket([]byte(browse[i]))
-		if bucket == nil {
-			return nil, errors.New("Unknown bucket")
-		}
-	}
-
-	return bucket, nil
-}
-
-func withBrowse_ReadOnly(b_ref ObjectReference, browse []string, fn func(db *bolt.DB, tx *bolt.Tx, bucket *bolt.Bucket) error) error {
-	if len(browse) == 0 {
-		// not a bucket
-		return errors.New("No bucket selected")
-	}
-
-	return withBoltDBReference(b_ref, func(db *bolt.DB) error {
-		return db.View(func(tx *bolt.Tx) error {
-
-			bucket, err := walkBuckets(tx, browse)
-			if err != nil {
-				return err
-			}
-
-			// Walked the bucket chain, now run the user callback
-			return fn(db, tx, bucket)
-
-		})
-	})
-}
-
-func err2triple(err error) (int64, *C.char, int) {
-	if err != nil {
-		msg := err.Error()
-		return ERROR_AND_STOP_CALLING, C.CString(msg), len(msg)
-	}
-
-	return FINISHED_OK, nil, 0
-}
-
-//export Bolt_CreateBucket
-func Bolt_CreateBucket(b_ref ObjectReference, browse []string, newBucket string) (int64, *C.char, int) {
-	err := withBoltDBReference(b_ref, func(db *bolt.DB) error {
-		return db.Update(func(tx *bolt.Tx) error {
-
-			if len(browse) == 0 {
-				// Top-level bucket
-				_, err := tx.CreateBucket([]byte(newBucket))
-				return err
-
-			} else {
-				// Deeper bucket
-				bucket, err := walkBuckets(tx, browse)
-				if err != nil {
-					return err
-				}
-
-				// Walked the bucket chain, now create the new bucket
-				_, err = bucket.CreateBucket([]byte(newBucket))
-				return err
-			}
-		})
-	})
-
-	return err2triple(err)
-}
-
-//export Bolt_DeleteBucket
-func Bolt_DeleteBucket(b_ref ObjectReference, browse []string, delBucket string) (int64, *C.char, int) {
-	err := withBoltDBReference(b_ref, func(db *bolt.DB) error {
-		return db.Update(func(tx *bolt.Tx) error {
-
-			if len(browse) == 0 {
-				// Top-level bucket
-				return tx.DeleteBucket([]byte(delBucket))
-
-			} else {
-				// Deeper bucket
-				bucket, err := walkBuckets(tx, browse)
-				if err != nil {
-					return err
-				}
-
-				// Walked the bucket chain, now delete the selected bucket
-				return bucket.DeleteBucket([]byte(delBucket))
-			}
-		})
-	})
-
-	return err2triple(err)
-}
-
-//export Bolt_SetItem
-func Bolt_SetItem(b_ref ObjectReference, browse []string, key, val string) (int64, *C.char, int) {
-	if len(browse) == 0 {
-		return err2triple(errors.New("Can't create top-level items"))
-	}
-
-	err := withBoltDBReference(b_ref, func(db *bolt.DB) error {
-		return db.Update(func(tx *bolt.Tx) error {
-
-			bucket, err := walkBuckets(tx, browse)
-			if err != nil {
-				return err
-			}
-
-			return bucket.Put([]byte(key), []byte(val))
-		})
-	})
-
-	return err2triple(err)
-}
-
-//export Bolt_DeleteItem
-func Bolt_DeleteItem(b_ref ObjectReference, browse []string, key string) (int64, *C.char, int) {
-	if len(browse) == 0 {
-		return err2triple(errors.New("Can't create top-level items"))
-	}
-
-	err := withBoltDBReference(b_ref, func(db *bolt.DB) error {
-		return db.Update(func(tx *bolt.Tx) error {
-
-			bucket, err := walkBuckets(tx, browse)
-			if err != nil {
-				return err
-			}
-
-			return bucket.Delete([]byte(key))
-		})
-	})
-
-	return err2triple(err)
-}
-
-type CallResponse struct {
-	s string
-	e error
-}
-
-//export Bolt_DBStats
-func Bolt_DBStats(b ObjectReference) (int64, *C.char, int) {
-	var stats bolt.Stats
-
-	err := withBoltDBReference(b, func(db *bolt.DB) error {
-		stats = db.Stats()
-		return nil
-	})
-
-	jBytes, err := json.Marshal(stats)
-	if err != nil {
-		return err2triple(err)
-	}
-
-	return REAL_MESSAGE, C.CString(string(jBytes)), len(jBytes)
-}
-
-//export Bolt_BucketStats
-func Bolt_BucketStats(b ObjectReference, browse []string) (int64, *C.char, int) {
-	var stats bolt.BucketStats
-
-	err := withBrowse_ReadOnly(b, browse, func(db *bolt.DB, tx *bolt.Tx, bucket *bolt.Bucket) error {
-		stats = bucket.Stats()
-		return nil
-	})
-
-	if err != nil {
-		return err2triple(err)
-	}
-
-	jBytes, err := json.Marshal(stats)
-	if err != nil {
-		return err2triple(err)
-	}
-
-	return REAL_MESSAGE, C.CString(string(jBytes)), len(jBytes)
-}
-
-type NextCall struct {
-	content chan CallResponse
-}
-
-//export Bolt_ListBuckets
-func Bolt_ListBuckets(b ObjectReference, browse []string) ObjectReference {
-	pNC := &NextCall{
-		content: make(chan CallResponse, 0),
-	}
-
-	pNC_Ref := gms.Put(pNC)
-
-	go func() {
-		var err error
-
-		if len(browse) == 0 {
-			// root mode
-			err = withBoltDBReference(b, func(db *bolt.DB) error {
-				return db.View(func(tx *bolt.Tx) error {
-					return tx.ForEach(func(k []byte, _ *bolt.Bucket) error {
-						pNC.content <- CallResponse{s: string(k)}
-						return nil
-					})
-				})
-			})
-
-		} else {
-			// Nested-mode
-			err = withBrowse_ReadOnly(b, browse, func(db *bolt.DB, tx *bolt.Tx, bucket *bolt.Bucket) error {
-				return bucket.ForEach(func(k, v []byte) error {
-					// non-nil v means it's a data item
-					if v == nil {
-						pNC.content <- CallResponse{s: string(k)}
-					}
-					return nil
-				})
-			})
-
-		}
-
-		if err != nil {
-			pNC.content <- CallResponse{e: err}
-		}
-
-		close(pNC.content)
-	}()
-
-	return pNC_Ref
-}
-
-//export Bolt_ListItems
-func Bolt_ListItems(b ObjectReference, browse []string) ObjectReference {
-
-	pNC := &NextCall{
-		content: make(chan CallResponse, 0),
-	}
-
-	pNC_Ref := gms.Put(pNC)
-
-	go func() {
-		var err error
-
-		if len(browse) == 0 {
-			err = errors.New("No bucket specified")
-		} else {
-			// Nested-mode
-			err = withBrowse_ReadOnly(b, browse, func(db *bolt.DB, tx *bolt.Tx, bucket *bolt.Bucket) error {
-				return bucket.ForEach(func(k, v []byte) error {
-					if v == nil {
-						return nil // nil v means it's a bucket, skip
-					}
-
-					itemLength := make([]byte, 8)
-					binary.LittleEndian.PutUint64(itemLength, uint64(len(v)))
-					pNC.content <- CallResponse{s: string(itemLength) + string(k)}
-					return nil
-				})
-			})
-		}
-
-		if err != nil {
-			pNC.content <- CallResponse{e: err}
-		}
-
-		close(pNC.content)
-	}()
-
-	return pNC_Ref
-}
-
-//export Bolt_GetItem
-func Bolt_GetItem(b ObjectReference, browse []string, key string) (int64, *C.char, int) {
-	var ret *C.char = nil
-	var ret_len = 0
-
-	err := withBrowse_ReadOnly(b, browse, func(db *bolt.DB, tx *bolt.Tx, bucket *bolt.Bucket) error {
-		d := bucket.Get([]byte(key))
-		ret = C.CString(string(d))
-		ret_len = len(d)
-		return nil
-	})
-
-	if err != nil {
-		return err2triple(err)
-	}
-
-	return REAL_MESSAGE, ret, ret_len
-}
-
-//export GetNext
-func GetNext(oRef ObjectReference) (int64, *C.char, int) {
-	pNC_Iface, ok := gms.Get(oRef)
-	if !ok {
-		return err2triple(NullObjectReference)
-	}
-
-	pNC, ok := pNC_Iface.(*NextCall)
-	if !ok {
-		return err2triple(NullObjectReference)
-	}
-
-	cr, ok := <-pNC.content
-	if !ok {
-		gms.Delete(oRef)
-		return err2triple(nil)
-	}
-
-	if cr.e != nil {
-		msg := cr.e.Error()
-		return ERROR_AND_KEEP_CALLING, C.CString(msg), len(msg)
-	}
-
-	return REAL_MESSAGE, C.CString(cr.s), len(cr.s)
-}
-
-//export Bolt_ListBucketsAtRoot
-func Bolt_ListBucketsAtRoot(b ObjectReference) ObjectReference {
-	return Bolt_ListBuckets(b, nil)
-}
-
-//export Bolt_Close
-func Bolt_Close(b ObjectReference) (*C.char, int) {
-	err := withBoltDBReference(b, func(db *bolt.DB) error {
-		return db.Close()
-	})
-
-	if err != nil {
-		msg := err.Error()
-		return C.CString(msg), len(msg)
-	}
-
-	gms.Delete(b)
-	return nil, 0
-}
 
 func main() {
-	// virtual
+
+	_ = qt.NewQApplication(os.Args)
+
+	qt.QGuiApplication_SetApplicationDisplayName("QBolt")
+	qt.QGuiApplication_SetWindowIcon(qt.NewQIcon4(":/rsrc/database_lightning.png"))
+
+	w := NewMainWindow()
+	w.ui.MainWindow.Show()
+
+	qt.QApplication_Exec()
 }

mainwindow.go

@@ -0,0 +1,496 @@
+package main
+
+import (
+	"fmt"
+	"path/filepath"
+	"strconv"
+	"strings"
+
+	"github.com/mappu/miqt/qt"
+	bolt "go.etcd.io/bbolt"
+)
+
+type MainWindow struct {
+	ui *MainWindowUi
+
+	databaseContext      *qt.QMenu
+	bucketContext        *qt.QMenu
+	lastContextSelection *qt.QTreeWidgetItem
+}
+
+func NewMainWindow() *MainWindow {
+	this := &MainWindow{}
+	this.ui = NewMainWindowUi()
+
+	this.on_bucketTree_currentItemChanged(nil, nil)
+
+	this.databaseContext = qt.NewQMenu()
+	this.databaseContext.QWidget.AddAction(this.ui.actionRefresh_buckets)
+	this.databaseContext.QWidget.AddAction(this.ui.actionAdd_bucket)
+	this.databaseContext.AddSeparator()
+	this.databaseContext.QWidget.AddAction(this.ui.actionDisconnect)
+
+	this.bucketContext = qt.NewQMenu()
+	this.bucketContext.QWidget.AddAction(this.ui.actionRefresh_buckets)
+	this.bucketContext.QWidget.AddAction(this.ui.actionAdd_bucket)
+	this.bucketContext.AddSeparator()
+	this.bucketContext.QWidget.AddAction(this.ui.actionDelete_bucket)
+
+	// Connections
+	this.ui.actionNew_database.OnTriggered(this.on_actionNew_database_triggered)
+	this.ui.actionOpen_database.OnTriggered(this.on_actionOpen_database_triggered)
+	this.ui.actionOpen_database_as_read_only.OnTriggered(this.on_actionOpen_database_as_read_only_triggered)
+	this.ui.actionExit.OnTriggered(this.on_actionExit_triggered)
+	this.ui.actionAbout_Qt.OnTriggered(this.on_actionAbout_Qt_triggered)
+	this.ui.actionAbout_qbolt.OnTriggered(this.on_actionAbout_qbolt_triggered)
+	this.ui.actionDisconnect.OnTriggered(this.on_actionDisconnect_triggered)
+	this.ui.bucketTree.OnCustomContextMenuRequested(this.on_bucketTree_customContextMenuRequested)
+	this.ui.actionRefresh_buckets.OnTriggered(this.on_actionRefresh_buckets_triggered)
+	this.ui.bucketTree.OnCurrentItemChanged(this.on_bucketTree_currentItemChanged)
+	this.ui.actionClear_selection.OnTriggered(this.on_actionClear_selection_triggered)
+	this.ui.bucketData.OnDoubleClicked(this.on_bucketData_doubleClicked)
+	this.ui.actionAdd_bucket.OnTriggered(this.on_actionAdd_bucket_triggered)
+	this.ui.actionDelete_bucket.OnTriggered(this.on_actionDelete_bucket_triggered)
+	this.ui.AddDataButton.OnClicked(this.on_AddDataButton_clicked)
+	this.ui.DeleteDataButton.OnClicked(this.on_DeleteDataButton_clicked)
+	this.ui.bucketData.OnItemSelectionChanged(this.on_bucketData_itemSelectionChanged)
+
+	return this
+}
+
+const (
+	BdbPointerRole = int(qt.UserRole + 1)
+	BinaryDataRole = int(qt.UserRole + 2)
+)
+
+var bdbs []*bolt.DB = nil
+
+func SET_BDB(top *qt.QTreeWidgetItem, bdb *bolt.DB) {
+	idx := len(bdbs)
+	bdbs = append(bdbs, bdb)
+	top.SetData(0, BdbPointerRole, qt.NewQVariant7(idx)) // Don't store a Go pointer in Qt memory
+}
+
+func GET_BDB(top *qt.QTreeWidgetItem) *bolt.DB {
+	if top == nil {
+		panic("Passed a nil QTreeWidgetItem")
+	}
+
+	dataVariant := top.Data(0, BdbPointerRole)
+	if dataVariant == nil {
+		panic("Selected item has no bdb")
+	}
+
+	return bdbs[dataVariant.ToInt()]
+}
+
+func (this *MainWindow) Widget() *qt.QWidget {
+	return this.ui.centralWidget
+}
+
+func (this *MainWindow) on_actionNew_database_triggered() {
+	file := qt.QFileDialog_GetSaveFileName2(this.Widget(), "Save new bolt database as...")
+	if len(file) > 0 {
+		this.openDatabase(file, false)
+	}
+}
+
+func (this *MainWindow) on_actionOpen_database_triggered() {
+	file := qt.QFileDialog_GetOpenFileName2(this.Widget(), "Select bolt database...")
+	if len(file) > 0 {
+		this.openDatabase(file, false)
+	}
+}
+
+func (this *MainWindow) on_actionOpen_database_as_read_only_triggered() {
+	file := qt.QFileDialog_GetOpenFileName2(this.Widget(), "Select bolt database...")
+	if len(file) > 0 {
+		this.openDatabase(file, true)
+	}
+}
+
+func (this *MainWindow) alert(message string) {
+	qt.QMessageBox_Critical(this.Widget(), "qbolt", message)
+}
+
+func (this *MainWindow) openDatabase(file string, readOnly bool) {
+
+	// Open
+	bdb, err := Bolt_Open(readOnly, file)
+	if err != nil {
+		this.alert(fmt.Sprintf("Error opening database: %s", err.Error()))
+		return
+	}
+
+	top := qt.NewQTreeWidgetItem()
+	top.SetText(0, filepath.Base(file))
+	top.SetIcon(0, qt.NewQIcon4(":/rsrc/database.png"))
+	SET_BDB(top, bdb)
+	this.ui.bucketTree.AddTopLevelItem(top)
+
+	this.refreshBucketTree(top)
+	this.ui.bucketTree.SetCurrentItem(top)
+
+	this.ui.bucketTree.ExpandItem(top)
+}
+
+func getDisplayName(qba string) string {
+	if qba == "" {
+		return "<empty>"
+	}
+
+	ret := strconv.Quote(qba)
+	return ret[1 : len(ret)-1]
+}
+
+func (this *MainWindow) refreshBucketTree(itm *qt.QTreeWidgetItem) {
+	ws := this.getSelection(itm)
+
+	// Remove existing children
+	i := itm.ChildCount()
+	for i > 0 {
+		itm.TakeChild(i - 1).Delete()
+		i -= 1
+	}
+
+	err := Bolt_ListBuckets(ws.bdb, ws.browse, func(qba string) {
+
+		child := qt.NewQTreeWidgetItem6(itm) // NewQTreeWidgetItem()
+		child.SetText(0, getDisplayName(qba))
+		child.SetData(0, BinaryDataRole, qt.NewQVariant15(MakeQByteArray(qba)))
+		child.SetIcon(0, qt.NewQIcon4(":/rsrc/table.png"))
+
+		itm.AddChild(child)
+		this.refreshBucketTree(child)
+	})
+	if err != nil {
+		this.alert(fmt.Sprintf("Error listing buckets under %s: %s", strings.Join(ws.browse, `/`), err.Error()))
+		return
+	}
+}
+
+func (this *MainWindow) on_actionExit_triggered() {
+	this.ui.MainWindow.Close()
+}
+
+func (this *MainWindow) on_actionAbout_Qt_triggered() {
+	qt.QApplication_AboutQt()
+}
+
+func (this *MainWindow) on_actionAbout_qbolt_triggered() {
+	qt.QMessageBox_About(
+		this.Widget(),
+		qt.QGuiApplication_ApplicationDisplayName(),
+		"<b>QBolt "+Version+"</b><br>Graphical interface for managing Bolt databases<br><br>"+
+			"- <a href='https://github.com/boltdb/bolt'>About BoltDB</a><br>"+
+			"- <a href='http://www.famfamfam.com/lab/icons/silk/'>FamFamFam &quot;Silk&quot; icon set</a><br>"+
+			"- <a href='https://code.ivysaur.me/qbolt'>QBolt homepage</a><br>",
+	)
+}
+
+func (this *MainWindow) on_actionDisconnect_triggered() {
+	top := this.lastContextSelection
+	if top.Parent() != nil {
+		return // somehow we didn't select a top-level item
+	}
+
+	bdb := GET_BDB(top)
+
+	// Remove UI
+	this.ui.bucketTree.ClearSelection()
+	top.Delete()
+
+	// Disconnect from DB
+	bdb.Close()
+}
+
+func (this *MainWindow) on_bucketTree_customContextMenuRequested(pos *qt.QPoint) {
+
+	itm := this.ui.bucketTree.ItemAt(pos)
+	if itm == nil {
+		return
+	}
+
+	this.lastContextSelection = itm
+
+	if itm.Parent() != nil {
+		// Child item, show the bucket menu
+		this.bucketContext.Popup(this.ui.bucketTree.Viewport().MapToGlobal(pos))
+
+	} else {
+		// Top-level item, show the database menu
+		this.databaseContext.Popup(this.ui.bucketTree.Viewport().MapToGlobal(pos))
+	}
+}
+
+func (this *MainWindow) on_actionRefresh_buckets_triggered() {
+	this.refreshBucketTree(this.lastContextSelection)
+}
+
+func (this *MainWindow) on_bucketTree_currentItemChanged(current, previous *qt.QTreeWidgetItem) {
+	_ = previous // Q_UNUSED
+	if current == nil {
+		this.ui.stackedWidget.SetVisible(false)
+		return
+	}
+
+	this.ui.stackedWidget.SetVisible(true)
+
+	if current.Parent() == nil {
+		// Selected a database
+		this.ui.stackedWidget.SetCurrentWidget(this.ui.databasePage)
+		this.ui.databasePropertiesArea.Clear()
+
+		bdb := GET_BDB(current)
+		stats, err := Bolt_DBStats(bdb)
+		if err != nil {
+			this.ui.databasePropertiesArea.SetPlainText(fmt.Sprintf("Error retrieving database statistics: %s", err.Error()))
+		} else {
+			this.ui.databasePropertiesArea.SetPlainText(stats)
+		}
+
+		// Clean up foreign areas
+		this.ui.bucketPropertiesArea.Clear()
+		this.ui.bucketData.Clear()
+
+	} else {
+		// Selected a bucket
+
+		this.ui.stackedWidget.SetCurrentWidget(this.ui.bucketPage)
+		this.ui.bucketPropertiesArea.Clear()
+
+		ws := this.getSelection(current)
+
+		stats, err := Bolt_BucketStats(ws.bdb, ws.browse)
+		if err != nil {
+			this.ui.bucketPropertiesArea.SetPlainText(fmt.Sprintf("Error retrieving bucket statistics: %s", err.Error()))
+		} else {
+			this.ui.bucketPropertiesArea.SetPlainText(stats)
+		}
+
+		// Load the data tab
+		this.refreshData(ws.bdb, ws.browse)
+
+		// Clean up foreign areas
+		this.ui.databasePropertiesArea.Clear()
+	}
+}
+
+func (this *MainWindow) refreshData(bdb *bolt.DB, browse []string) {
+	// Load the data tab
+	this.ui.bucketData.Clear()
+
+	err := Bolt_ListItems(bdb, browse, func(lii ListItemInfo) error {
+		itm := qt.NewQTreeWidgetItem()
+		itm.SetText(0, getDisplayName(lii.Name))
+		itm.SetData(0, BinaryDataRole, qt.NewQVariant15(MakeQByteArray(lii.Name)))
+		itm.SetText(1, fmt.Sprintf("%d", lii.DataLen))
+		this.ui.bucketData.AddTopLevelItem(itm)
+		return nil
+	})
+
+	if err != nil {
+		this.alert(fmt.Sprintf("Error listing bucket content: %s", err.Error()))
+		return
+	}
+
+	this.ui.bucketData.ResizeColumnToContents(0)
+	this.on_bucketData_itemSelectionChanged()
+}
+
+func (this *MainWindow) on_actionClear_selection_triggered() {
+	this.ui.bucketTree.SetCurrentItem(nil)
+}
+
+type windowSelection struct {
+	itm    *qt.QTreeWidgetItem
+	top    *qt.QTreeWidgetItem
+	browse []string
+	bdb    *bolt.DB
+}
+
+func (this *MainWindow) getWindowSelection() (windowSelection, bool) {
+
+	itm := this.ui.bucketTree.CurrentItem()
+	if itm == nil {
+		return windowSelection{}, false // No selection
+	}
+
+	return this.getSelection(itm), true
+}
+
+func (this *MainWindow) getSelection(itm *qt.QTreeWidgetItem) windowSelection {
+
+	top := itm
+
+	var browse []string
+	for {
+		if top.Parent() == nil {
+			break
+		} else {
+			browse = append(browse, FromQByteArray(top.Data(0, BinaryDataRole).ToByteArray()))
+			top = top.Parent()
+		}
+	}
+
+	ReverseSlice(browse)
+
+	bdb := GET_BDB(top)
+
+	return windowSelection{itm: itm, top: top, browse: browse, bdb: bdb}
+}
+
+func (this *MainWindow) openEditor(bdb *bolt.DB, saveAs []string, saveAsKey string, currentContent []byte) {
+	iw := NewItemWindowUi()
+
+	iw.contentArea.SetPlainText(string(currentContent))
+	iw.ItemWindow.SetWindowTitle(getDisplayName(saveAsKey))
+	iw.ItemWindow.SetWindowModality(qt.ApplicationModal) // we need this - otherwise we'll refresh a possibly-changed area after saving
+	iw.ItemWindow.OnFinished(func(exitCode int) {
+		if exitCode == int(qt.QDialog__Accepted) {
+
+			err := Bolt_SetItem(bdb, saveAs, saveAsKey, iw.contentArea.ToPlainText())
+			if err != nil {
+				this.alert(fmt.Sprintf("Error saving item content: %s", err.Error()))
+			}
+
+			this.refreshData(bdb, saveAs)
+		}
+		iw.ItemWindow.DeleteLater()
+	})
+
+	iw.ItemWindow.Show()
+}
+
+func (this *MainWindow) on_bucketData_doubleClicked(index *qt.QModelIndex) {
+	ws, ok := this.getWindowSelection()
+	if !ok {
+		return // no selection
+	}
+
+	// Get item key
+
+	model := index.Model()
+	key := FromQByteArray(model.Data2(model.Index(index.Row(), 0), BinaryDataRole).ToByteArray())
+
+	// DB lookup
+	content, err := Bolt_GetItem(ws.bdb, ws.browse, key)
+	if err != nil {
+		this.alert(fmt.Sprintf("Error loading item content: %s", err.Error()))
+		return
+	}
+
+	this.openEditor(ws.bdb, ws.browse, key, []byte(content))
+}
+
+func (this *MainWindow) on_actionAdd_bucket_triggered() {
+	ws, ok := this.getWindowSelection()
+	if !ok {
+		return // no selection
+	}
+
+	// Prompt for bucket name
+
+	name := qt.QInputDialog_GetText(this.Widget(), "New bucket", "Enter a key for the new bucket:")
+	if len(name) == 0 {
+		return
+	}
+
+	// Create
+	err := Bolt_CreateBucket(ws.bdb, ws.browse, name)
+	if err != nil {
+		this.alert(fmt.Sprintf("Error creating bucket: %s", err.Error()))
+		return
+	}
+
+	// Refresh bucket list
+	this.refreshBucketTree(ws.itm) // sub-tree only
+	this.ui.bucketTree.ExpandItem(ws.itm)
+}
+
+func (this *MainWindow) on_actionDelete_bucket_triggered() {
+	ws, ok := this.getWindowSelection()
+	if !ok {
+		return // no selection
+	}
+
+	// Prompt for confirmation
+	bucketToDelete := FromQByteArray(ws.itm.Data(0, BinaryDataRole).ToByteArray())
+	if qt.QMessageBox_Question4(
+		this.Widget(),
+		"Delete bucket",
+		fmt.Sprintf("Are you sure you want to remove the bucket '%s'?", getDisplayName(bucketToDelete)),
+		qt.QMessageBox__Yes,
+		qt.QMessageBox__Cancel,
+	) != int(qt.QMessageBox__Yes) {
+		return
+	}
+
+	parent := ws.itm.Parent()
+
+	// One level down
+
+	if len(ws.browse) > 0 {
+		ws.browse = ws.browse[0 : len(ws.browse)-1]
+	}
+
+	err := Bolt_DeleteBucket(ws.bdb, ws.browse, bucketToDelete)
+	if err != nil {
+		this.alert(fmt.Sprintf("Error removing bucket: %s", err.Error()))
+		return
+	}
+
+	// Refresh bucket list
+	this.refreshBucketTree(parent) // sub-tree only
+	this.ui.bucketTree.ExpandItem(parent)
+	this.ui.bucketTree.SetCurrentItem(parent)
+}
+
+func (this *MainWindow) on_AddDataButton_clicked() {
+	ws, ok := this.getWindowSelection()
+	if !ok {
+		return // no selection
+	}
+
+	// Prompt for bucket name
+
+	name := qt.QInputDialog_GetText(this.Widget(), "New item", "Enter a key for the new item:")
+	if len(name) == 0 {
+		return
+	}
+
+	this.openEditor(ws.bdb, ws.browse, name, []byte(""))
+}
+
+func (this *MainWindow) on_DeleteDataButton_clicked() {
+	ws, ok := this.getWindowSelection()
+	if !ok {
+		return // no selection
+	}
+
+	selection := this.ui.bucketData.SelectedItems()
+	if len(selection) == 0 {
+		return // nothing to do
+	}
+
+	// Prompt for confirmation
+	if qt.QMessageBox_Question4(this.Widget(), "Delete items", fmt.Sprintf("Are you sure you want to remove %d item(s)?", len(selection)), qt.QMessageBox__Yes, qt.QMessageBox__Cancel) != int(qt.QMessageBox__Yes) {
+		return
+	}
+
+	var i int = len(selection)
+	for i > 0 {
+		err := Bolt_DeleteItem(ws.bdb, ws.browse, FromQByteArray(selection[i-1].Data(0, BinaryDataRole).ToByteArray()))
+		if err != nil {
+			this.alert(fmt.Sprintf("Error removing item: %s", err.Error()))
+			return
+		}
+		i -= 1
+	}
+
+	this.refreshData(ws.bdb, ws.browse)
+}
+
+func (this *MainWindow) on_bucketData_itemSelectionChanged() {
+	this.ui.DeleteDataButton.SetEnabled(len(this.ui.bucketData.SelectedItems()) > 0)
+}

mainwindow.ui

@@ -269,12 +269,12 @@
      <x>0</x>
      <y>0</y>
      <width>668</width>
-     <height>21</height>
+     <height>29</height>
     </rect>
    </property>
    <widget class="QMenu" name="menuFile">
     <property name="title">
-     <string>Fi&amp;le</string>
+     <string>&amp;File</string>
     </property>
     <addaction name="actionNew_database"/>
     <addaction name="actionOpen_database"/>

mainwindow_ui.go

@@ -0,0 +1,325 @@
+// Generated by miqt-uic. To update this file, edit the .ui file in
+// Qt Designer, and then run 'go generate'.
+//
+//go:generate miqt-uic -InFile mainwindow.ui -OutFile mainwindow_ui.go
+
+package main
+
+import (
+	"github.com/mappu/miqt/qt"
+)
+
+type MainWindowUi struct {
+	MainWindow                       *qt.QMainWindow
+	centralWidget                    *qt.QWidget
+	gridLayout                       *qt.QGridLayout
+	splitter                         *qt.QSplitter
+	bucketTree                       *qt.QTreeWidget
+	stackedWidget                    *qt.QStackedWidget
+	databasePage                     *qt.QWidget
+	gridLayout_4                     *qt.QGridLayout
+	databaseTabWidget                *qt.QTabWidget
+	databasePropertiesTab            *qt.QWidget
+	gridLayout_2                     *qt.QGridLayout
+	databasePropertiesArea           *qt.QPlainTextEdit
+	bucketPage                       *qt.QWidget
+	gridLayout_3                     *qt.QGridLayout
+	bucketTabWidget                  *qt.QTabWidget
+	bucketPropertiesTab              *qt.QWidget
+	gridLayout_5                     *qt.QGridLayout
+	bucketPropertiesArea             *qt.QPlainTextEdit
+	bucketDataTab                    *qt.QWidget
+	gridLayout_6                     *qt.QGridLayout
+	bucketData                       *qt.QTreeWidget
+	AddDataButton                    *qt.QPushButton
+	horizontalSpacer                 *qt.QSpacerItem
+	DeleteDataButton                 *qt.QPushButton
+	menuBar                          *qt.QMenuBar
+	menuFile                         *qt.QMenu
+	menuHelp                         *qt.QMenu
+	menuView                         *qt.QMenu
+	mainToolBar                      *qt.QToolBar
+	statusBar                        *qt.QStatusBar
+	actionAbout_qbolt                *qt.QAction
+	actionAbout_Qt                   *qt.QAction
+	actionOpen_database              *qt.QAction
+	actionExit                       *qt.QAction
+	actionDisconnect                 *qt.QAction
+	actionDelete_bucket              *qt.QAction
+	actionRefresh_buckets            *qt.QAction
+	actionClear_selection            *qt.QAction
+	actionNew_database               *qt.QAction
+	actionAdd_bucket                 *qt.QAction
+	actionOpen_database_as_read_only *qt.QAction
+}
+
+// NewMainWindowUi creates all Qt widget classes for MainWindow.
+func NewMainWindowUi() *MainWindowUi {
+	ui := &MainWindowUi{}
+
+	ui.MainWindow = qt.NewQMainWindow2(nil)
+	ui.MainWindow.SetObjectName("MainWindow")
+	ui.MainWindow.Resize(668, 405)
+	ui.MainWindow.SetWindowTitle("QBolt")
+	icon0 := qt.NewQIcon()
+	icon0.AddFile4(":/rsrc/database_lightning.png", qt.NewQSize(), qt.QIcon__Normal, qt.QIcon__Off)
+	ui.MainWindow.SetWindowIcon(icon0)
+
+	ui.actionAbout_qbolt = qt.NewQAction()
+	ui.actionAbout_qbolt.SetObjectName("actionAbout_qbolt")
+	icon1 := qt.NewQIcon()
+	icon1.AddFile4(":/rsrc/information.png", qt.NewQSize(), qt.QIcon__Normal, qt.QIcon__Off)
+	ui.actionAbout_qbolt.SetIcon(icon1)
+
+	ui.actionAbout_Qt = qt.NewQAction()
+	ui.actionAbout_Qt.SetObjectName("actionAbout_Qt")
+
+	ui.actionOpen_database = qt.NewQAction()
+	ui.actionOpen_database.SetObjectName("actionOpen_database")
+	icon2 := qt.NewQIcon()
+	icon2.AddFile4(":/rsrc/database.png", qt.NewQSize(), qt.QIcon__Normal, qt.QIcon__Off)
+	ui.actionOpen_database.SetIcon(icon2)
+
+	ui.actionExit = qt.NewQAction()
+	ui.actionExit.SetObjectName("actionExit")
+	icon3 := qt.NewQIcon()
+	icon3.AddFile4(":/rsrc/door_out.png", qt.NewQSize(), qt.QIcon__Normal, qt.QIcon__Off)
+	ui.actionExit.SetIcon(icon3)
+
+	ui.actionDisconnect = qt.NewQAction()
+	ui.actionDisconnect.SetObjectName("actionDisconnect")
+	icon4 := qt.NewQIcon()
+	icon4.AddFile4(":/rsrc/disconnect.png", qt.NewQSize(), qt.QIcon__Normal, qt.QIcon__Off)
+	ui.actionDisconnect.SetIcon(icon4)
+
+	ui.actionDelete_bucket = qt.NewQAction()
+	ui.actionDelete_bucket.SetObjectName("actionDelete_bucket")
+	icon5 := qt.NewQIcon()
+	icon5.AddFile4(":/rsrc/table_delete.png", qt.NewQSize(), qt.QIcon__Normal, qt.QIcon__Off)
+	ui.actionDelete_bucket.SetIcon(icon5)
+
+	ui.actionRefresh_buckets = qt.NewQAction()
+	ui.actionRefresh_buckets.SetObjectName("actionRefresh_buckets")
+	icon6 := qt.NewQIcon()
+	icon6.AddFile4(":/rsrc/arrow_refresh.png", qt.NewQSize(), qt.QIcon__Normal, qt.QIcon__Off)
+	ui.actionRefresh_buckets.SetIcon(icon6)
+
+	ui.actionClear_selection = qt.NewQAction()
+	ui.actionClear_selection.SetObjectName("actionClear_selection")
+
+	ui.actionNew_database = qt.NewQAction()
+	ui.actionNew_database.SetObjectName("actionNew_database")
+	icon7 := qt.NewQIcon()
+	icon7.AddFile4(":/rsrc/database_add.png", qt.NewQSize(), qt.QIcon__Normal, qt.QIcon__Off)
+	ui.actionNew_database.SetIcon(icon7)
+
+	ui.actionAdd_bucket = qt.NewQAction()
+	ui.actionAdd_bucket.SetObjectName("actionAdd_bucket")
+	icon8 := qt.NewQIcon()
+	icon8.AddFile4(":/rsrc/table_add.png", qt.NewQSize(), qt.QIcon__Normal, qt.QIcon__Off)
+	ui.actionAdd_bucket.SetIcon(icon8)
+
+	ui.actionOpen_database_as_read_only = qt.NewQAction()
+	ui.actionOpen_database_as_read_only.SetObjectName("actionOpen_database_as_read_only")
+
+	ui.centralWidget = qt.NewQWidget2(ui.MainWindow.QWidget)
+	ui.centralWidget.SetObjectName("centralWidget")
+
+	ui.gridLayout = qt.NewQGridLayout(ui.centralWidget)
+	ui.gridLayout.SetObjectName("gridLayout")
+	ui.gridLayout.SetContentsMargins(0, 0, 0, 0)
+	ui.gridLayout.SetSpacing(6)
+
+	ui.splitter = qt.NewQSplitter3(ui.centralWidget)
+	ui.splitter.SetObjectName("splitter")
+	ui.splitter.SetOrientation(qt.Horizontal)
+	ui.splitter.SetChildrenCollapsible(false)
+
+	ui.bucketTree = qt.NewQTreeWidget2(ui.splitter.QWidget)
+	ui.bucketTree.SetObjectName("bucketTree")
+	ui.bucketTree.SetContextMenuPolicy(qt.CustomContextMenu)
+	ui.bucketTree.SetUniformRowHeights(true)
+	ui.splitter.AddWidget(ui.bucketTree.QWidget)
+
+	ui.stackedWidget = qt.NewQStackedWidget2(ui.splitter.QWidget)
+	ui.stackedWidget.SetObjectName("stackedWidget")
+
+	ui.databasePage = qt.NewQWidget2(ui.stackedWidget.QWidget)
+	ui.databasePage.SetObjectName("databasePage")
+
+	ui.gridLayout_4 = qt.NewQGridLayout(ui.databasePage)
+	ui.gridLayout_4.SetObjectName("gridLayout_4")
+	ui.gridLayout_4.SetContentsMargins(0, 0, 0, 0)
+	ui.gridLayout_4.SetSpacing(6)
+
+	ui.databaseTabWidget = qt.NewQTabWidget2(ui.databasePage)
+	ui.databaseTabWidget.SetObjectName("databaseTabWidget")
+
+	ui.databasePropertiesTab = qt.NewQWidget2(ui.databaseTabWidget.QWidget)
+	ui.databasePropertiesTab.SetObjectName("databasePropertiesTab")
+
+	ui.gridLayout_2 = qt.NewQGridLayout(ui.databasePropertiesTab)
+	ui.gridLayout_2.SetObjectName("gridLayout_2")
+	ui.gridLayout_2.SetContentsMargins(3, 3, 3, 3)
+	ui.gridLayout_2.SetSpacing(6)
+
+	ui.databasePropertiesArea = qt.NewQPlainTextEdit3(ui.databasePropertiesTab)
+	ui.databasePropertiesArea.SetObjectName("databasePropertiesArea")
+	ui.databasePropertiesArea.SetFrameShape(qt.QFrame__NoFrame)
+	ui.databasePropertiesArea.SetReadOnly(true)
+
+	ui.gridLayout_2.AddWidget2(ui.databasePropertiesArea.QWidget, 0, 0)
+	icon9 := qt.NewQIcon()
+	icon9.AddFile4(":/rsrc/chart_bar.png", qt.NewQSize(), qt.QIcon__Normal, qt.QIcon__Off)
+	ui.databaseTabWidget.AddTab2(ui.databasePropertiesTab, icon9, "")
+
+	ui.gridLayout_4.AddWidget2(ui.databaseTabWidget.QWidget, 0, 0)
+	ui.stackedWidget.AddWidget(ui.databasePage)
+
+	ui.bucketPage = qt.NewQWidget2(ui.stackedWidget.QWidget)
+	ui.bucketPage.SetObjectName("bucketPage")
+
+	ui.gridLayout_3 = qt.NewQGridLayout(ui.bucketPage)
+	ui.gridLayout_3.SetObjectName("gridLayout_3")
+	ui.gridLayout_3.SetContentsMargins(0, 0, 0, 0)
+	ui.gridLayout_3.SetSpacing(6)
+
+	ui.bucketTabWidget = qt.NewQTabWidget2(ui.bucketPage)
+	ui.bucketTabWidget.SetObjectName("bucketTabWidget")
+
+	ui.bucketPropertiesTab = qt.NewQWidget2(ui.bucketTabWidget.QWidget)
+	ui.bucketPropertiesTab.SetObjectName("bucketPropertiesTab")
+
+	ui.gridLayout_5 = qt.NewQGridLayout(ui.bucketPropertiesTab)
+	ui.gridLayout_5.SetObjectName("gridLayout_5")
+	ui.gridLayout_5.SetContentsMargins(3, 3, 3, 3)
+	ui.gridLayout_5.SetSpacing(6)
+
+	ui.bucketPropertiesArea = qt.NewQPlainTextEdit3(ui.bucketPropertiesTab)
+	ui.bucketPropertiesArea.SetObjectName("bucketPropertiesArea")
+	ui.bucketPropertiesArea.SetFrameShape(qt.QFrame__NoFrame)
+	ui.bucketPropertiesArea.SetReadOnly(true)
+
+	ui.gridLayout_5.AddWidget2(ui.bucketPropertiesArea.QWidget, 0, 0)
+	icon10 := qt.NewQIcon()
+	icon10.AddFile4(":/rsrc/chart_bar.png", qt.NewQSize(), qt.QIcon__Normal, qt.QIcon__Off)
+	ui.bucketTabWidget.AddTab2(ui.bucketPropertiesTab, icon10, "")
+
+	ui.bucketDataTab = qt.NewQWidget2(ui.bucketTabWidget.QWidget)
+	ui.bucketDataTab.SetObjectName("bucketDataTab")
+
+	ui.gridLayout_6 = qt.NewQGridLayout(ui.bucketDataTab)
+	ui.gridLayout_6.SetObjectName("gridLayout_6")
+	ui.gridLayout_6.SetContentsMargins(3, 3, 3, 3)
+	ui.gridLayout_6.SetSpacing(6)
+
+	ui.bucketData = qt.NewQTreeWidget2(ui.bucketDataTab)
+	ui.bucketData.SetObjectName("bucketData")
+	ui.bucketData.SetSelectionMode(qt.QAbstractItemView__ExtendedSelection)
+	ui.bucketData.SetIndentation(0)
+	ui.bucketData.SetRootIsDecorated(false)
+	ui.bucketData.SetUniformRowHeights(true)
+	ui.bucketData.SetItemsExpandable(false)
+
+	ui.gridLayout_6.AddWidget3(ui.bucketData.QWidget, 0, 0, 1, 3)
+
+	ui.AddDataButton = qt.NewQPushButton4(ui.bucketDataTab)
+	ui.AddDataButton.SetObjectName("AddDataButton")
+	icon11 := qt.NewQIcon()
+	icon11.AddFile4(":/rsrc/add.png", qt.NewQSize(), qt.QIcon__Normal, qt.QIcon__Off)
+	ui.AddDataButton.SetIcon(icon11)
+
+	ui.gridLayout_6.AddWidget2(ui.AddDataButton.QWidget, 1, 0)
+	/* miqt-uic: no handler for spacer */
+
+	ui.DeleteDataButton = qt.NewQPushButton4(ui.bucketDataTab)
+	ui.DeleteDataButton.SetObjectName("DeleteDataButton")
+	icon12 := qt.NewQIcon()
+	icon12.AddFile4(":/rsrc/delete.png", qt.NewQSize(), qt.QIcon__Normal, qt.QIcon__Off)
+	ui.DeleteDataButton.SetIcon(icon12)
+
+	ui.gridLayout_6.AddWidget2(ui.DeleteDataButton.QWidget, 1, 1)
+	icon13 := qt.NewQIcon()
+	icon13.AddFile4(":/rsrc/table.png", qt.NewQSize(), qt.QIcon__Normal, qt.QIcon__Off)
+	ui.bucketTabWidget.AddTab2(ui.bucketDataTab, icon13, "")
+
+	ui.gridLayout_3.AddWidget2(ui.bucketTabWidget.QWidget, 0, 0)
+	ui.stackedWidget.AddWidget(ui.bucketPage)
+	ui.splitter.AddWidget(ui.stackedWidget.QWidget)
+
+	ui.gridLayout.AddWidget2(ui.splitter.QWidget, 0, 0)
+	ui.MainWindow.SetCentralWidget(ui.centralWidget) // Set central widget
+
+	ui.menuBar = qt.NewQMenuBar2(ui.MainWindow.QWidget)
+	ui.menuBar.SetObjectName("menuBar")
+	ui.menuBar.Resize(668, 29)
+
+	ui.menuFile = qt.NewQMenu3(ui.menuBar.QWidget)
+	ui.menuFile.SetObjectName("menuFile")
+	ui.menuFile.QWidget.AddAction(ui.actionNew_database)
+	ui.menuFile.QWidget.AddAction(ui.actionOpen_database)
+	ui.menuFile.QWidget.AddAction(ui.actionOpen_database_as_read_only)
+	ui.menuFile.AddSeparator()
+	ui.menuFile.QWidget.AddAction(ui.actionExit)
+
+	ui.menuHelp = qt.NewQMenu3(ui.menuBar.QWidget)
+	ui.menuHelp.SetObjectName("menuHelp")
+	ui.menuHelp.QWidget.AddAction(ui.actionAbout_qbolt)
+	ui.menuHelp.QWidget.AddAction(ui.actionAbout_Qt)
+
+	ui.menuView = qt.NewQMenu3(ui.menuBar.QWidget)
+	ui.menuView.SetObjectName("menuView")
+	ui.menuView.QWidget.AddAction(ui.actionClear_selection)
+	ui.menuBar.AddMenu(ui.menuFile)
+	ui.menuBar.AddMenu(ui.menuView)
+	ui.menuBar.AddMenu(ui.menuHelp)
+	ui.MainWindow.SetMenuBar(ui.menuBar)
+
+	ui.mainToolBar = qt.NewQToolBar4(ui.MainWindow.QWidget)
+	ui.mainToolBar.SetObjectName("mainToolBar")
+	ui.MainWindow.AddToolBar(qt.TopToolBarArea, ui.mainToolBar)
+	/* miqt-uic: no handler for mainToolBar attribute 'toolBarBreak' */
+	ui.mainToolBar.QWidget.AddAction(ui.actionNew_database)
+	ui.mainToolBar.QWidget.AddAction(ui.actionOpen_database)
+	ui.mainToolBar.AddSeparator()
+
+	ui.statusBar = qt.NewQStatusBar2(ui.MainWindow.QWidget)
+	ui.statusBar.SetObjectName("statusBar")
+	ui.MainWindow.SetStatusBar(ui.statusBar)
+
+	ui.Retranslate()
+
+	ui.stackedWidget.SetCurrentIndex(0)
+	ui.databaseTabWidget.SetCurrentIndex(0)
+	ui.bucketTabWidget.SetCurrentIndex(0)
+
+	return ui
+}
+
+// Retranslate reapplies all text translations.
+func (ui *MainWindowUi) Retranslate() {
+	ui.actionAbout_qbolt.SetText(qt.QMainWindow_Tr("&About QBolt"))
+	ui.actionAbout_Qt.SetText(qt.QMainWindow_Tr("About &Qt"))
+	ui.actionOpen_database.SetText(qt.QMainWindow_Tr("&Open database..."))
+	ui.actionOpen_database.SetShortcut(qt.NewQKeySequence2(qt.QMainWindow_Tr("Ctrl+O")))
+	ui.actionExit.SetText(qt.QMainWindow_Tr("&Exit"))
+	ui.actionDisconnect.SetText(qt.QMainWindow_Tr("Disconnect"))
+	ui.actionDelete_bucket.SetText(qt.QMainWindow_Tr("Delete bucket"))
+	ui.actionRefresh_buckets.SetText(qt.QMainWindow_Tr("Refresh buckets"))
+	ui.actionClear_selection.SetText(qt.QMainWindow_Tr("&Clear selection"))
+	ui.actionNew_database.SetText(qt.QMainWindow_Tr("&New database..."))
+	ui.actionAdd_bucket.SetText(qt.QMainWindow_Tr("Add bucket..."))
+	ui.actionOpen_database_as_read_only.SetText(qt.QMainWindow_Tr("Open database as read-only..."))
+	ui.bucketTree.HeaderItem().SetText(0, qt.QTreeWidget_Tr("Bucket"))
+	ui.databaseTabWidget.SetTabText(ui.databaseTabWidget.IndexOf(ui.databasePropertiesTab), qt.QTabWidget_Tr("Database"))
+	ui.databasePropertiesArea.SetPlainText(qt.QWidget_Tr("No selection"))
+	ui.bucketTabWidget.SetTabText(ui.bucketTabWidget.IndexOf(ui.bucketPropertiesTab), qt.QTabWidget_Tr("Bucket"))
+	ui.bucketTabWidget.SetTabText(ui.bucketTabWidget.IndexOf(ui.bucketDataTab), qt.QTabWidget_Tr("Data"))
+	ui.bucketData.HeaderItem().SetText(0, qt.QTreeWidget_Tr("Key"))
+	ui.bucketData.HeaderItem().SetText(1, qt.QTreeWidget_Tr("Data length"))
+	ui.AddDataButton.SetText(qt.QWidget_Tr("Add..."))
+	ui.DeleteDataButton.SetText(qt.QWidget_Tr("Delete..."))
+	ui.menuFile.SetTitle(qt.QMenuBar_Tr("&File"))
+	ui.menuHelp.SetTitle(qt.QMenuBar_Tr("Help"))
+	ui.menuView.SetTitle(qt.QMenuBar_Tr("&View"))
+}

qbolt/boltdb.cpp

@@ -1,219 +0,0 @@
-#include "boltdb.h"
-
-#include <QtEndian>
-
-BoltDB::BoltDB()
-{
-
-}
-
-BoltDB* BoltDB::createFrom(QString filePath, bool readOnly, QString &errorOut)
-{
-    QByteArray filePathBytes(filePath.toUtf8());
-    GoString filePathGS = Interop::toGoString_WeakRef(&filePathBytes);
-
-    auto open_ret = ::Bolt_Open(readOnly, filePathGS);
-    if (open_ret.r2 != 0) {
-        errorOut = QString::fromUtf8(open_ret.r1, open_ret.r2);
-        free(open_ret.r1);
-        return nullptr;
-    }
-
-    BoltDB *ret = new BoltDB();
-    ret->gmsDbRef = open_ret.r0;
-    return ret;
-}
-
-static const int ERROR_AND_STOP_CALLING = 100;
-static const int ERROR_AND_KEEP_CALLING = 101;
-static const int FINISHED_OK            = 102;
-static const int REAL_MESSAGE           = 103;
-
-static bool handleTriple(int r0, char* r1, int64_t r2, QString& errorOut) {
-    if (r0 == ERROR_AND_STOP_CALLING) {
-        errorOut = QString::fromUtf8(r1, r2);
-        free(r1);
-        return false;
-
-    } else if (r0 == FINISHED_OK) {
-        return true;
-
-    } else {
-        // ?? unreachable
-        return false;
-
-    }
-}
-
-bool BoltDB::addBucket(const QList<QByteArray>& bucketPath, QByteArray bucketName, QString& errorOut)
-{
-    GoSliceManagedWrapper browse(bucketPath);
-    GoString bucketNameGS = Interop::toGoString_WeakRef(&bucketName);
-    auto resp = ::Bolt_CreateBucket(this->gmsDbRef, browse.slice, bucketNameGS);
-
-    return handleTriple(resp.r0, resp.r1, resp.r2, errorOut);
-}
-
-bool BoltDB::deleteBucket(const QList<QByteArray>& bucketPath, QByteArray bucketName, QString& errorOut)
-{
-    GoSliceManagedWrapper browse(bucketPath);
-    GoString bucketNameGS = Interop::toGoString_WeakRef(&bucketName);
-    auto resp = ::Bolt_DeleteBucket(this->gmsDbRef, browse.slice, bucketNameGS);
-
-    return handleTriple(resp.r0, resp.r1, resp.r2, errorOut);
-}
-
-bool BoltDB::setItem(const QList<QByteArray>& bucketPath, QByteArray keyName, QByteArray value, QString& errorOut)
-{
-    GoSliceManagedWrapper browse(bucketPath);
-    GoString keyNameGS = Interop::toGoString_WeakRef(&keyName);
-    GoString valueGS = Interop::toGoString_WeakRef(&value);
-    auto resp = ::Bolt_SetItem(this->gmsDbRef, browse.slice, keyNameGS, valueGS);
-
-    return handleTriple(resp.r0, resp.r1, resp.r2, errorOut);
-}
-
-bool BoltDB::deleteItem(const QList<QByteArray>& bucketPath, QByteArray keyName, QString& errorOut)
-{
-    GoSliceManagedWrapper browse(bucketPath);
-    GoString keyNameGS = Interop::toGoString_WeakRef(&keyName);
-    auto resp = ::Bolt_DeleteItem(this->gmsDbRef, browse.slice, keyNameGS);
-
-    return handleTriple(resp.r0, resp.r1, resp.r2, errorOut);
-}
-
-
-bool BoltDB::listBucketsAtRoot(QString& errorOut, NameReciever cb)
-{
-    auto listJob = ::Bolt_ListBucketsAtRoot(this->gmsDbRef);
-    return pumpNext(listJob, errorOut, cb);
-}
-
-bool BoltDB::listBuckets(const QList<QByteArray>& bucketPath, QString& errorOut, NameReciever cb)
-{
-    if (bucketPath.size() == 0) {
-        return listBucketsAtRoot(errorOut, cb);
-    }
-
-    GoSliceManagedWrapper browse(bucketPath);
-    auto listJob = ::Bolt_ListBuckets(this->gmsDbRef, browse.slice);
-    return pumpNext(listJob, errorOut, cb);
-}
-
-bool BoltDB::listKeys(const QList<QByteArray>& bucketPath, QString& errorOut, std::function<void(QByteArray, int64_t)> cb)
-{
-    GoSliceManagedWrapper browse(bucketPath);
-    auto listJob = ::Bolt_ListItems(this->gmsDbRef, browse.slice);
-    return pumpNext(listJob, errorOut, [=](QByteArray b) {
-        // First 8 bytes are little-endian uint64 len
-        int64_t dataLen = qFromLittleEndian<qint64>(b.mid(0, 8));
-        cb(b.mid(8), dataLen);
-    });
-}
-
-bool BoltDB::getData(const QList<QByteArray>& bucketPath, QByteArray key, std::function<void(QByteArray)> onSuccess, std::function<void(QString)> onError)
-{
-    GoSliceManagedWrapper browse(bucketPath);
-    GoString keyGS = Interop::toGoString_WeakRef(&key);
-    auto resp = ::Bolt_GetItem(this->gmsDbRef, browse.slice, keyGS);
-
-    if (resp.r0 == ERROR_AND_STOP_CALLING) {
-        onError(QString::fromUtf8(resp.r1, resp.r2));
-        free(resp.r1);
-        return false;
-
-    } else if (resp.r0 == REAL_MESSAGE) {
-        onSuccess(QByteArray(resp.r1, resp.r2));
-        free(resp.r1);
-        return true;
-
-    } else {
-        // ?? unreachable
-        return false;
-
-    }
-}
-
-bool BoltDB::pumpNext(GoInt64 jobRef, QString& errorOut, NameReciever cb)
-{
-    errorOut.clear();
-
-    for(;;) {
-        auto gnr = ::GetNext(jobRef);
-
-        if (gnr.r0 == ERROR_AND_STOP_CALLING) {
-            errorOut.append(QString::fromUtf8(gnr.r1, gnr.r2)); // log error
-            free(gnr.r1);
-            break; // done
-
-        } else if (gnr.r0 == ERROR_AND_KEEP_CALLING) {
-            errorOut.append(QString::fromUtf8(gnr.r1, gnr.r2)); // log error
-            free(gnr.r1);
-            continue;
-
-        } else if (gnr.r0 == FINISHED_OK) {
-            // Once we hit this, the go-side will clean up the channel / associated goroutines
-            break;
-
-        } else if (gnr.r0 == REAL_MESSAGE) {
-            cb(QByteArray(gnr.r1, gnr.r2));
-            free(gnr.r1);
-            continue;
-        }
-    }
-
-    return (errorOut.length() == 0);
-}
-
-bool BoltDB::getStatsJSON(std::function<void(QByteArray)> onSuccess, std::function<void(QString)> onError)
-{
-    auto statresp = Bolt_DBStats(this->gmsDbRef);
-
-    if (statresp.r0 == ERROR_AND_STOP_CALLING) {
-        onError(QString::fromUtf8(statresp.r1, statresp.r2));
-        free(statresp.r1);
-        return false;
-
-    } else if (statresp.r0 == REAL_MESSAGE) {
-        onSuccess(QByteArray(statresp.r1, statresp.r2));
-        free(statresp.r1);
-        return true;
-
-    } else {
-        // ?? shouldn't be reachable
-        return false;
-    }
-}
-
-bool BoltDB::getBucketStatsJSON(const QList<QByteArray>& bucketPath, std::function<void(QByteArray)> onSuccess, std::function<void(QString)> onError)
-{
-    GoSliceManagedWrapper sliceWrapper(bucketPath);
-    auto statresp = Bolt_BucketStats(this->gmsDbRef, sliceWrapper.slice);
-
-    if (statresp.r0 == ERROR_AND_STOP_CALLING) {
-        QString err = QString::fromUtf8(statresp.r1, statresp.r2);
-        free(statresp.r1);
-        onError(err);
-        return false;
-
-    } else if (statresp.r0 == REAL_MESSAGE) {
-        onSuccess(QByteArray(statresp.r1, statresp.r2));
-        free(statresp.r1);
-        return true;
-
-    } else {
-        // ?? shouldn't be reachable
-        return false;
-    }
-}
-
-BoltDB::~BoltDB()
-{
-    auto err = ::Bolt_Close(this->gmsDbRef);
-    if (err.r1 != 0) {
-        // Error closing database!
-        // Need to display an alert... somewhere
-
-        free(err.r0);
-    }
-}

qbolt/boltdb.h

@@ -1,46 +0,0 @@
-#ifndef BOLTDB_H
-#define BOLTDB_H
-
-#include "interop.h"
-#include <functional>
-
-typedef std::function<void(QByteArray)> NameReciever;
-
-class BoltDB
-{
-protected:
-    BoltDB();
-
-    GoInt64 gmsDbRef;
-
-public:
-    static BoltDB* createFrom(QString filePath, bool readOnly, QString &errorOut);
-
-    bool listBucketsAtRoot(QString& errorOut, NameReciever cb);
-
-    bool listBuckets(const QList<QByteArray>& bucketPath, QString& errorOut, NameReciever cb);
-
-    bool addBucket(const QList<QByteArray>& bucketPath, QByteArray bucketName, QString& errorOut);
-
-    bool deleteBucket(const QList<QByteArray>& bucketPath, QByteArray bucketName, QString& errorOut);
-
-    bool setItem(const QList<QByteArray>& bucketPath, QByteArray keyName, QByteArray value, QString& errorOut);
-
-    bool deleteItem(const QList<QByteArray>& bucketPath, QByteArray keyName, QString& errorOut);
-
-    bool listKeys(const QList<QByteArray>& bucketPath, QString& errorOut, std::function<void(QByteArray, int64_t)> cb);
-
-    bool getData(const QList<QByteArray>& bucketPath, QByteArray key, std::function<void(QByteArray)> onSuccess, std::function<void(QString)> onError);
-
-    bool getStatsJSON(std::function<void(QByteArray)> onSuccess, std::function<void(QString)> onError);
-
-    bool getBucketStatsJSON(const QList<QByteArray>& bucketPath, std::function<void(QByteArray)> onSuccess, std::function<void(QString)> onError);
-
-    ~BoltDB();
-
-protected:
-
-    bool pumpNext(GoInt64 jobRef, QString& errorOut, NameReciever cb);
-};
-
-#endif // BOLTDB_H

qbolt/interop.cpp

@@ -1,42 +0,0 @@
-#include "interop.h"
-
-#include <QStringList>
-
-Interop::Interop()
-{
-
-}
-
-GoString Interop::toGoString_WeakRef(QByteArray *qba) {
-    return GoString{qba->data(), qba->length()};
-}
-
-int64_t Interop::GetMagic() {
-    return ::GetMagic();
-}
-
-//
-
-GoSliceManagedWrapper::GoSliceManagedWrapper(const QList<QByteArray>& qsl) :
-    rawStrings(),
-    slice(),
-    strings(nullptr)
-{
-    rawStrings.reserve(qsl.size());
-    strings = new GoString[qsl.size()];
-
-    for (int i = 0; i < qsl.size(); ++i) {
-        rawStrings.push_back( qsl.at(i) );
-        strings[i].p = rawStrings[i].data();
-        strings[i].n = rawStrings[i].size();
-    }
-
-    slice.data = static_cast<void*>(strings);
-    slice.len  = qsl.size(); //  * sizeof(GoString);
-    slice.cap  = slice.len;
-}
-
-GoSliceManagedWrapper::~GoSliceManagedWrapper()
-{
-    delete[] strings;
-}

qbolt/interop.h

@@ -1,31 +0,0 @@
-#ifndef INTEROP_H
-#define INTEROP_H
-
-#include "qbolt_cgo.h"
-#include <QString>
-#include <QList>
-
-class GoSliceManagedWrapper {
-    Q_DISABLE_COPY(GoSliceManagedWrapper)
-
-public:
-    GoSliceManagedWrapper(const QList<QByteArray>& qsl);
-    ~GoSliceManagedWrapper();
-protected:
-    QList<QByteArray> rawStrings;
-public:
-    GoSlice slice;
-    GoString *strings;
-};
-
-class Interop
-{
-public:
-    Interop();
-
-    static GoString toGoString_WeakRef(QByteArray *qba);
-
-    static int64_t GetMagic();
-};
-
-#endif // INTEROP_H

qbolt/itemwindow.cpp

@@ -1,18 +0,0 @@
-#include "itemwindow.h"
-#include "ui_itemwindow.h"
-
-ItemWindow::ItemWindow(QWidget *parent) :
-    QDialog(parent),
-    ui(new Ui::ItemWindow)
-{
-    ui->setupUi(this);
-}
-
-ItemWindow::~ItemWindow()
-{
-    delete ui;
-}
-
-QPlainTextEdit* ItemWindow::ContentArea() const {
-    return ui->contentArea;
-}

qbolt/itemwindow.h

@@ -1,25 +0,0 @@
-#ifndef ITEMWINDOW_H
-#define ITEMWINDOW_H
-
-#include <QDialog>
-#include <QPlainTextEdit>
-
-namespace Ui {
-class ItemWindow;
-}
-
-class ItemWindow : public QDialog
-{
-    Q_OBJECT
-
-public:
-    explicit ItemWindow(QWidget *parent = 0);
-    ~ItemWindow();
-
-    QPlainTextEdit* ContentArea() const;
-
-private:
-    Ui::ItemWindow *ui;
-};
-
-#endif // ITEMWINDOW_H

qbolt/main.cpp

@@ -1,23 +0,0 @@
-#include "mainwindow.h"
-#include <QApplication>
-#include "interop.h"
-
-#include <QDebug>
-
-int main(int argc, char *argv[])
-{
-    int64_t magic = Interop::GetMagic();
-    if (magic != 0x10203040) {
-        qDebug() << "bad magic " << magic;
-        return 1;
-    }
-
-    QApplication a(argc, argv);
-    QApplication::setApplicationDisplayName("QBolt");
-    QApplication::setWindowIcon(QIcon(":/rsrc/database_lightning.png"));
-
-    MainWindow w;
-    w.show();
-
-    return a.exec();
-}

qbolt/mainwindow.cpp

@@ -1,478 +0,0 @@
-#include "mainwindow.h"
-#include "ui_mainwindow.h"
-#include "itemwindow.h"
-#include "boltdb.h"
-
-#include <QFileDialog>
-#include <QMessageBox>
-#include <QJsonDocument>
-#include <QInputDialog>
-
-MainWindow::MainWindow(QWidget *parent) :
-    QMainWindow(parent),
-    ui(new Ui::MainWindow)
-{
-    ui->setupUi(this);
-
-    on_bucketTree_currentItemChanged(nullptr, nullptr);
-
-    databaseContext = new QMenu();
-    databaseContext->addAction(ui->actionRefresh_buckets);
-    databaseContext->addAction(ui->actionAdd_bucket);
-    databaseContext->addSeparator();
-    databaseContext->addAction(ui->actionDisconnect);
-
-    bucketContext = new QMenu();
-    bucketContext->addAction(ui->actionRefresh_buckets);
-    bucketContext->addAction(ui->actionAdd_bucket);
-    bucketContext->addSeparator();
-    bucketContext->addAction(ui->actionDelete_bucket);
-}
-
-MainWindow::~MainWindow()
-{
-    delete ui;
-}
-
-static const int BdbPointerRole = Qt::UserRole + 1;
-static const int BinaryDataRole = Qt::UserRole + 2;
-
-#define SET_BDB(top, bdb) top->setData(0, BdbPointerRole, QVariant::fromValue<void*>(static_cast<void*>(bdb)))
-#define GET_BDB(top) static_cast<BoltDB*>( top->data(0, BdbPointerRole).value<void*>() )
-
-void MainWindow::on_actionNew_database_triggered()
-{
-    QString file = QFileDialog::getSaveFileName(this, tr("Save new bolt database as..."));
-    if (file.length()) {
-        openDatabase(file, false);
-    }
-}
-
-void MainWindow::on_actionOpen_database_triggered()
-{
-    QString file = QFileDialog::getOpenFileName(this, tr("Select bolt database..."));
-    if (file.length()) {
-        openDatabase(file, false);
-    }
-}
-
-void MainWindow::on_actionOpen_database_as_read_only_triggered()
-{
-    QString file = QFileDialog::getOpenFileName(this, tr("Select bolt database..."));
-    if (file.length()) {
-        openDatabase(file, true);
-    }
-}
-
-void MainWindow::openDatabase(QString file, bool readOnly)
-{
-    // Open
-    QString error;
-    auto *bdb = BoltDB::createFrom(file, readOnly, error);
-    if (bdb == nullptr) {
-        QMessageBox qmb;
-        qmb.setText(tr("Error opening database: %1").arg(error));
-        qmb.exec();
-        return;
-    }
-
-    QTreeWidgetItem *top = new QTreeWidgetItem();
-    top->setText(0, QFileInfo(file).fileName());
-    top->setIcon(0, QIcon(":/rsrc/database.png"));
-    SET_BDB(top, bdb);
-    ui->bucketTree->addTopLevelItem(top);
-
-    refreshBucketTree(top);
-    ui->bucketTree->setCurrentItem(top);
-
-    ui->bucketTree->expandItem(top);
-}
-
-static const QString getDisplayName(const QByteArray &qba) {
-    // FIXME the formatting isn't so great when control characters, etc. are used
-    // A C-style escape display, or the unicode-replacement-character would be preferable
-    QString ret(QString::fromUtf8(qba));
-
-    bool allPrintable = true;
-    for (auto i = ret.begin(), e = ret.end(); i != e; ++i) {
-        if (! i->isPrint()) {
-            allPrintable = false;
-            break;
-        }
-    }
-
-    if (allPrintable) {
-        return ret; // fine
-    }
-
-    // Some of the characters weren't printable.
-    // Build up a replacement string
-    QString replacement;
-    for (auto i = ret.begin(), e = ret.end(); i != e; ++i) {
-        replacement += i->isPrint() ? *i : QStringLiteral("\\u{%1}").arg(i->unicode());
-    }
-    return replacement;
-}
-
-void MainWindow::refreshBucketTree(QTreeWidgetItem* itm)
-{
-    QTreeWidgetItem *top = itm;
-    QList<QByteArray> browsePath;
-    while(top->parent() != nullptr) {
-        browsePath.push_front(top->data(0, BinaryDataRole).toByteArray());
-        top = top->parent();
-    }
-
-    // Remove existing children
-    for (int i = itm->childCount(); i --> 0;) {
-        delete itm->takeChild(i);
-    }
-
-    auto *bdb = GET_BDB(top);
-
-    QString error;
-    bool ok = bdb->listBuckets(
-        browsePath,
-        error,
-        [=](QByteArray qba){
-            QTreeWidgetItem *child = new QTreeWidgetItem();
-            child->setText(0, getDisplayName(qba));
-            child->setData(0, BinaryDataRole, qba);
-            child->setIcon(0, QIcon(":/rsrc/table.png"));
-            itm->addChild(child);
-
-            refreshBucketTree(child);
-        }
-    );
-
-    if (!ok) {
-        QMessageBox qmb;
-        qmb.setText(tr("Error listing buckets: %1").arg(error));
-        qmb.exec();
-        // (continue)
-    }
-}
-
-void MainWindow::on_actionExit_triggered()
-{
-    close();
-}
-
-void MainWindow::on_actionAbout_Qt_triggered()
-{
-    QApplication::aboutQt();
-}
-
-void MainWindow::on_actionAbout_qbolt_triggered()
-{
-    QMessageBox::about(
-        this,
-        QApplication::applicationDisplayName(),
-        "<b>QBolt</b><br>Graphical interface for managing Bolt databases<br><br>"
-        "- <a href='https://github.com/boltdb/bolt'>About BoltDB</a><br>"
-        "- <a href='http://www.famfamfam.com/lab/icons/silk/'>FamFamFam &quot;Silk&quot; icon set</a><br>"
-        "- <a href='https://code.ivysaur.me/qbolt'>QBolt homepage</a><br>"
-    );
-}
-
-void MainWindow::on_actionDisconnect_triggered()
-{
-    QTreeWidgetItem *top = lastContextSelection;
-    if (top->parent()) {
-        return; // somehow we didn't select a top-level item
-    }
-
-    auto *bdb = GET_BDB(top);
-
-    // Remove UI
-    ui->bucketTree->clearSelection();
-    delete top;
-
-    // Disconnect from DB
-    delete bdb;
-}
-
-void MainWindow::on_bucketTree_customContextMenuRequested(const QPoint &pos)
-{
-    auto *itm = ui->bucketTree->itemAt(pos);
-    if (itm == nullptr) {
-        return;
-    }
-
-    lastContextSelection = itm;
-
-    if (itm->parent() != nullptr) {
-        // Child item, show the bucket menu
-        bucketContext->popup(ui->bucketTree->mapToGlobal(pos));
-
-    } else {
-        // Top-level item, show the database menu
-        databaseContext->popup(ui->bucketTree->mapToGlobal(pos));
-    }
-}
-
-void MainWindow::on_actionRefresh_buckets_triggered()
-{
-    refreshBucketTree(lastContextSelection);
-}
-
-void MainWindow::on_bucketTree_currentItemChanged(QTreeWidgetItem *current, QTreeWidgetItem *previous)
-{
-    Q_UNUSED(previous);
-    if (current == nullptr) {
-        ui->stackedWidget->setVisible(false);
-        return;
-    }
-
-    ui->stackedWidget->setVisible(true);
-
-    if (current->parent() == nullptr) {
-        // Selected a database
-        ui->stackedWidget->setCurrentWidget(ui->databasePage);
-        ui->databasePropertiesArea->clear();
-
-        auto *bdb = GET_BDB(current);
-        bdb->getStatsJSON(
-            [=](QByteArray j) {
-                auto doc = QJsonDocument::fromJson(j);
-                ui->databasePropertiesArea->setPlainText(QString::fromUtf8(doc.toJson(QJsonDocument::Indented)));
-            },
-            [=](QString error) {
-                ui->databasePropertiesArea->setPlainText(tr("Error retrieving database statistics: %1").arg(error));
-            }
-        );
-
-        // Clean up foreign areas
-        ui->bucketPropertiesArea->clear();
-        ui->bucketData->clear();
-
-    } else {
-        // Selected a bucket
-
-        ui->stackedWidget->setCurrentWidget(ui->bucketPage);
-        ui->bucketPropertiesArea->clear();
-
-        QList<QByteArray> browse;
-        QTreeWidgetItem *top = current;
-        while (top->parent() != nullptr) {
-            browse.push_front(top->data(0, BinaryDataRole).toByteArray());
-            top = top->parent();
-        }
-        auto *bdb = GET_BDB(top);
-
-        bdb->getBucketStatsJSON(
-            browse,
-            [=](QByteArray j) {
-                auto doc = QJsonDocument::fromJson(j);
-                ui->bucketPropertiesArea->setPlainText(QString::fromUtf8(doc.toJson(QJsonDocument::Indented)));
-            },
-            [=](QString error) {
-                ui->bucketPropertiesArea->setPlainText(tr("Error retrieving bucket statistics: %1").arg(error));
-            }
-        );
-
-        // Load the data tab
-        refreshData(bdb, browse);
-
-        // Clean up foreign areas
-        ui->databasePropertiesArea->clear();
-    }
-}
-
-void MainWindow::refreshData(BoltDB *bdb, const QList<QByteArray>& browse)
-{
-    // Load the data tab
-    ui->bucketData->clear();
-    QString err;
-    bool ok = bdb->listKeys(browse, err, [=](QByteArray name, int64_t dataLen) {
-        auto *itm = new QTreeWidgetItem();
-        itm->setText(0, getDisplayName(name));
-        itm->setData(0, BinaryDataRole, name);
-        itm->setText(1, QString("%1").arg(dataLen));
-        ui->bucketData->addTopLevelItem(itm);
-    });
-
-    if (! ok) {
-        QMessageBox qmb;
-        qmb.setText(tr("Error listing bucket content: %1").arg(err));
-        qmb.exec();
-    }
-
-    ui->bucketData->resizeColumnToContents(0);
-    on_bucketData_itemSelectionChanged();
-}
-
-void MainWindow::on_actionClear_selection_triggered()
-{
-    ui->bucketTree->setCurrentItem(nullptr);
-}
-
-#define GET_ITM_TOP_BROWSE_BDB \
-    QTreeWidgetItem* itm = ui->bucketTree->currentItem(); \
-    if (itm == nullptr) { \
-        return; \
-    } \
-    QTreeWidgetItem* top = itm; \
-    QList<QByteArray> browse; \
-    while(top->parent() != nullptr) { \
-        browse.push_front(top->data(0, BinaryDataRole).toByteArray()); \
-        top = top->parent(); \
-    } \
-    auto *bdb = GET_BDB(top);
-
-void MainWindow::openEditor(BoltDB *bdb, const QList<QByteArray>& saveAs, QByteArray saveAsKey, QByteArray currentContent)
-{
-    auto iw = new ItemWindow();
-    iw->ContentArea()->setPlainText(QString::fromUtf8(currentContent));
-    iw->setWindowTitle(QString::fromUtf8(saveAsKey));
-    iw->setWindowModality(Qt::ApplicationModal); // we need this - otherwise we'll refresh a possibly-changed area after saving
-    connect(iw, &ItemWindow::finished, iw, [=](int exitCode){
-        if (exitCode == ItemWindow::Accepted) {
-            QString err;
-            if (! bdb->setItem(saveAs, saveAsKey, iw->ContentArea()->toPlainText().toUtf8(), err)) {
-                QMessageBox qmb;
-                qmb.setText(tr("Error saving item content: %1").arg(err));
-                qmb.exec();
-            }
-
-            refreshData(bdb, saveAs);
-        }
-        iw->deleteLater();
-    });
-
-    iw->show();
-}
-
-void MainWindow::on_bucketData_doubleClicked(const QModelIndex &index)
-{
-    GET_ITM_TOP_BROWSE_BDB;
-
-    // Get item key
-
-    auto model = index.model();
-    const QByteArray& key = model->data(model->index(index.row(), 0), BinaryDataRole).toByteArray();
-
-    // DB lookup
-
-    bdb->getData(
-        browse,
-        key,
-        [=](QByteArray content) {
-            openEditor(bdb, browse, key, content);
-        },
-        [=](QString error) {
-            QMessageBox qmb;
-            qmb.setText(tr("Error loading item content: %1").arg(error));
-            qmb.exec();
-        }
-    );
-
-}
-
-void MainWindow::on_actionAdd_bucket_triggered()
-{
-    GET_ITM_TOP_BROWSE_BDB;
-
-    // Prompt for bucket name
-
-    QString name = QInputDialog::getText(this, tr("New bucket"), tr("Enter a key for the new bucket:"));
-    if (name.length() == 0) {
-        return;
-    }
-
-    // Create
-    QString err;
-    if (! bdb->addBucket(browse, name.toUtf8(), err)) {
-        QMessageBox qmb;
-        qmb.setText(tr("Error creating bucket: %1").arg(err));
-        qmb.exec();
-        return;
-    }
-
-    // Refresh bucket list
-    refreshBucketTree(itm); // sub-tree only
-    ui->bucketTree->expandItem(itm);
-}
-
-void MainWindow::on_actionDelete_bucket_triggered()
-{
-    GET_ITM_TOP_BROWSE_BDB;
-
-    // Prompt for confirmation
-    const QByteArray& bucketToDelete = itm->data(0, BinaryDataRole).toByteArray();
-    if (
-        QMessageBox::question(
-            this,
-            tr("Delete bucket"),
-            tr("Are you sure you want to remove the bucket '%1'?").arg(getDisplayName(bucketToDelete)),
-            QMessageBox::Yes,
-            QMessageBox::Cancel
-        ) != QMessageBox::Yes
-    ) {
-        return;
-    }
-
-    QTreeWidgetItem* parent = itm->parent();
-
-    // One level down
-
-    browse.pop_back();
-
-    QString err;
-    if (! bdb->deleteBucket(browse, bucketToDelete, err)) {
-        QMessageBox qmb;
-        qmb.setText(tr("Error removing bucket: %1").arg(err));
-        qmb.exec();
-        return;
-    }
-
-    // Refresh bucket list
-    refreshBucketTree(parent); // sub-tree only
-    ui->bucketTree->expandItem(parent);
-    ui->bucketTree->setCurrentItem(parent);
-}
-
-void MainWindow::on_AddDataButton_clicked()
-{
-    GET_ITM_TOP_BROWSE_BDB;
-
-    // Prompt for bucket name
-
-    QString name = QInputDialog::getText(this, tr("New item"), tr("Enter a key for the new item:"));
-    if (name.length() == 0) {
-        return;
-    }
-
-    openEditor(bdb, browse, name.toUtf8(), QByteArray());
-}
-
-void MainWindow::on_DeleteDataButton_clicked()
-{
-    GET_ITM_TOP_BROWSE_BDB;
-
-    auto selection = ui->bucketData->selectedItems();
-    if (selection.length() == 0) {
-        return; // nothing to do
-    }
-
-    // Prompt for confirmation
-    if (QMessageBox::question(this, tr("Delete items"), tr("Are you sure you want to remove %1 item(s)?").arg(selection.length()), QMessageBox::Yes, QMessageBox::Cancel) != QMessageBox::Yes) {
-        return;
-    }
-
-    QString err;
-    for (int i = selection.length(); i-->0;) {
-        if (! bdb->deleteItem(browse, selection[i]->data(0, BinaryDataRole).toByteArray(), err)) {
-            QMessageBox qmb;
-            qmb.setText(tr("Error removing item: %1").arg(err));
-            qmb.exec();
-        }
-    }
-
-    refreshData(bdb, browse);
-}
-
-void MainWindow::on_bucketData_itemSelectionChanged()
-{
-    ui->DeleteDataButton->setEnabled( (ui->bucketData->selectedItems().size() > 0) );
-}

qbolt/mainwindow.h

@@ -1,70 +0,0 @@
-#ifndef MAINWINDOW_H
-#define MAINWINDOW_H
-
-#include "boltdb.h"
-#include <QMainWindow>
-#include <QMenu>
-#include <QTreeWidgetItem>
-
-namespace Ui {
-class MainWindow;
-}
-
-class MainWindow : public QMainWindow
-{
-    Q_OBJECT
-
-public:
-    explicit MainWindow(QWidget *parent = 0);
-    ~MainWindow();
-
-private slots:
-    void on_actionOpen_database_triggered();
-
-    void on_actionExit_triggered();
-
-    void on_actionAbout_Qt_triggered();
-
-    void on_actionAbout_qbolt_triggered();
-
-    void on_actionDisconnect_triggered();
-
-    void on_bucketTree_customContextMenuRequested(const QPoint &pos);
-
-    void on_actionRefresh_buckets_triggered();
-
-    void on_bucketTree_currentItemChanged(QTreeWidgetItem *current, QTreeWidgetItem *previous);
-
-    void on_actionClear_selection_triggered();
-
-    void on_bucketData_doubleClicked(const QModelIndex &index);
-
-    void on_actionNew_database_triggered();
-
-    void on_actionAdd_bucket_triggered();
-
-    void on_actionDelete_bucket_triggered();
-
-    void on_AddDataButton_clicked();
-
-    void on_DeleteDataButton_clicked();
-
-    void on_bucketData_itemSelectionChanged();
-
-    void on_actionOpen_database_as_read_only_triggered();
-
-protected:
-    void openDatabase(QString file, bool readOnly);
-    void refreshBucketTree(QTreeWidgetItem* top);
-    void refreshData(BoltDB *bdb, const QList<QByteArray>& browse);
-    void openEditor(BoltDB *bdb, const QList<QByteArray>& saveAs, QByteArray saveAsKey, QByteArray currentContent);
-
-private:
-    Ui::MainWindow *ui;
-
-    QMenu *databaseContext;
-    QMenu *bucketContext;
-    QTreeWidgetItem* lastContextSelection;
-};
-
-#endif // MAINWINDOW_H

qbolt/qbolt.pro

@@ -1,48 +0,0 @@
-#-------------------------------------------------
-#
-# Project created by QtCreator 2017-05-15T19:38:33
-#
-#-------------------------------------------------
-
-QT       += core gui
-
-greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
-
-TARGET = qbolt
-TEMPLATE = app
-
-# Enforce Qt deprecations
-DEFINES += QT_DEPRECATED_WARNINGS
-DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000
-
-win32: {
-    # for some reason, qbolt_cgo.h never realises that Q_OS_WIN is defined for win32 builds... weird
-    DEFINES += CGO_WINDOWS
-    QMAKE_LIBS += $$_PRO_FILE_PWD_/../build/win32/qbolt.a
-    QMAKE_LIBS += -lntdll
-
-    RC_ICONS = rsrc/qbolt.ico
-}
-
-linux: {
-    QMAKE_LIBS += $$_PRO_FILE_PWD_/../build/linux/qbolt.a
-    QMAKE_LIBS += -lpthread
-}
-
-SOURCES += main.cpp\
-        mainwindow.cpp \
-    interop.cpp \
-    boltdb.cpp \
-    itemwindow.cpp
-
-HEADERS  += mainwindow.h \
-    interop.h \
-    boltdb.h \
-    qbolt_cgo.h \
-    itemwindow.h
-
-FORMS    += mainwindow.ui \
-    itemwindow.ui
-
-RESOURCES += \
-    resources.qrc

qbolt/qbolt_cgo.h

@@ -1,10 +0,0 @@
-#ifndef QBOLT_CGO_H
-#define QBOLT_CGO_H
-
-#if defined(Q_OS_WIN) || defined(CGO_WINDOWS)
-#include "../build/win32/qbolt.h"
-#else
-#include "../build/linux/qbolt.h"
-#endif
-
-#endif // QBOLT_CGO_H

resources.go

@@ -0,0 +1,17 @@
+package main
+
+//go:generate miqt-rcc.sh resources.qrc
+
+import (
+	"embed"
+
+	"github.com/mappu/miqt/qt"
+)
+
+//go:embed resources.rcc
+var _resourceRcc []byte
+
+func init() {
+	_ = embed.FS{}
+	qt.QResource_RegisterResourceWithRccData(&_resourceRcc[0])
+}

util.go

@@ -0,0 +1,24 @@
+package main
+
+import (
+	"unsafe"
+	
+	"github.com/mappu/miqt/qt"
+)
+
+// ReverseSlice reverses a slice.
+// @ref https://stackoverflow.com/a/28058324
+func ReverseSlice[S ~[]E, E any](s S)  {
+    for i, j := 0, len(s)-1; i < j; i, j = i+1, j-1 {
+        s[i], s[j] = s[j], s[i]
+    }
+}
+
+func MakeQByteArray(s string) *qt.QByteArray {
+	return qt.NewQByteArray7(s, len(s))
+}
+
+func FromQByteArray(qba *qt.QByteArray) string {
+	var rawData []byte = unsafe.Slice((*byte)(qba.Data()), qba.Length())
+	return string(rawData) // copy
+}

util_test.go

@@ -0,0 +1,17 @@
+package main
+
+import (
+	"testing"
+)
+
+func TestQByteArray(t *testing.T) {
+	foo := "the \x00 quick \x01 brown \x02 fox \x03 jumps \x04 over \x05 the \x06 lazy \x07 dog"
+
+	qb := MakeQByteArray(foo)
+
+	out := FromQByteArray(qb)
+
+	if foo != out {
+		t.Errorf("Expected equal")
+	}
+}

windows-manifest.template.json

@@ -0,0 +1,50 @@
+{
+  "RT_GROUP_ICON": {
+    "APP": {
+      "0000": "rsrc/database_lightning.png"
+    }
+  },
+  "RT_VERSION": {
+    "#1": {
+      "0000": {
+        "fixed": {
+          "file_version": "%VERSION%.0",
+          "product_version": "%VERSION%.0"
+        },
+        "info": {
+          "0409": {
+            "FileDescription": "QBolt Database Viewer",
+            "FileVersion": "%VERSION%.0",
+            "ProductName": "QBolt Database Viewer",
+            "ProductVersion": "%VERSION%.0"
+          }
+        }
+      }
+    }
+  },
+  "RT_MANIFEST": {
+    "#1": {
+      "0409": {
+        "identity": {
+          "name": "",
+          "version": ""
+        },
+        "description": "",
+        "minimum-os": "win7",
+        "execution-level": "as invoker",
+        "ui-access": false,
+        "auto-elevate": false,
+        "dpi-awareness": "per monitor v2",
+        "disable-theming": false,
+        "disable-window-filtering": false,
+        "high-resolution-scrolling-aware": false,
+        "ultra-high-resolution-scrolling-aware": false,
+        "long-path-aware": false,
+        "printer-driver-isolation": false,
+        "gdi-scaling": false,
+        "segment-heap": false,
+        "use-common-controls-v6": true
+      }
+    }
+  }
+}