/*
* Erzeugt die ganzen Events für das drawing area mittels lambdas.
*
* Parameter:
* drawingarea - Die drawing area auf der gezeichnet werden soll
*
* Zu den Schnittstellenkommentaren: Leider gibts das anscheinend nicht direkt
* in go (jedenfall kein @param etc.) :/
*/
func createEvents(drawingarea *gtk.DrawingArea) {
// Wir brauchen ne pixmap in der wir die Pixeldaten speichern
var pixmap *gdk.Pixmap
// gdk.GC ist einfach eine Sammlung an Eigenschaften und Einstellungen zum zeichnen
var gc *gdk.GC
p := point{x: -1, y: -1}
drawingarea.Connect("configure-event", func() {
// wenns schon ne pixmap gibt, lösche diese
if pixmap != nil {
pixmap.Unref()
}
// hole pixmap und stuff
allocation := drawingarea.GetAllocation()
pixmap = gdk.NewPixmap(drawingarea.GetWindow().GetDrawable(), allocation.Width, allocation.Height, 24)
// weißen Hintergrund zeichnen:
gc = gdk.NewGC(pixmap.GetDrawable())
gc.SetRgbFgColor(gdk.NewColor("white"))
pixmap.GetDrawable().DrawRectangle(gc, true, 0, 0, -1, -1)
// Vorder- und Hintergrundfarbe setzen
gc.SetRgbFgColor(gdk.NewColor("black"))
gc.SetRgbBgColor(gdk.NewColor("red"))
})
// dieses event wird ausgeführt wenn auf das widget geklickt wurde
drawingarea.Connect("button-press-event", func(ctx *glib.CallbackContext) {
// Argumente holen
arg := ctx.Args(0)
// irgend son pointer auf ein objekt holen in dem mehr Infos stehen
mev := *(**gdk.EventMotion)(unsafe.Pointer(&arg))
// Position ausgeben
fmt.Println("Geklickte Position: ", p)
// hier ist meine eigene Logik:
// Wenn noch kein Klick registriert wurde ist p.x == p.y == -1 und da soll noch nichts gezeichnet werden
// erst wenn der zweite klick kommt soll zwischen diesem und dem alten eine Linie gezeichnet werden
p_neu := point{x: int(mev.X), y: int(mev.Y)}
if p.x != -1 && p.y != -1 {
pixmap.GetDrawable().DrawLine(gc, p.x, p.y, p_neu.x, p_neu.y)
drawingarea.GetWindow().Invalidate(nil, false)
}
// Position des neuen klicks speichern, es ist also der neue startpunkt der nächsten linie
p = p_neu
})
// dieses event wird ausgeführt wenn drawingarea.GetWindow().Invalidate(nil, false) aufgerufen wird
drawingarea.Connect("expose-event", func() {
if pixmap != nil {
drawingarea.GetWindow().GetDrawable().DrawDrawable(gc, pixmap.GetDrawable(), 0, 0, 0, 0, -1, -1)
}
})
// Events müssen manuell spezifiziert werden.
// Hier werden immer MASKs übergeben, hier also eben die BUTTON_PRESS_MASK,
// welche erst in einen int gecastet werden muss
drawingarea.SetEvents(int(gdk.BUTTON_PRESS_MASK))
}
func NewGraph() *Graph {
graph := &Graph{*gtk.NewDrawingArea(), nil, nil, -20.0, 20.0, -2.0, 2.0, 1, 10.0, 0.1, 1.0, nil, nil}
graph.Connect("expose_event", func() {
if graph.pixmap != nil {
graph.GetWindow().GetDrawable().DrawDrawable(graph.gc, graph.pixmap.GetDrawable(), 0, 0, 0, 0, -1, -1)
}
})
graph.Connect("configure_event", func(ctx *glib.CallbackContext) {
if graph.pixmap != nil {
graph.pixmap.Unref()
}
allocation := graph.GetAllocation()
graph.pixmap = gdk.NewPixmap(graph.GetWindow().GetDrawable(),
allocation.Width,
allocation.Height,
-1)
graph.gc = gdk.NewGC(graph.pixmap.GetDrawable())
graph.setScale()
graph.plot()
})
graph.SetEvents(int(gdk.EXPOSE | gdk.CONFIGURE))
return graph
}
func (rw *RegionWrapper) SetBiomeAt(x, z int, bio mcmap.Biome) {
cx, cz, bx, bz := mcmap.BlockToChunk(x, z)
pos := XZPos{cx, cz}
chunk, err := rw.region.Chunk(cx, cz)
switch err {
case nil:
case mcmap.NotAvailable:
return
default:
rw.guicbs.reportFail(fmt.Sprintf("Error while getting chunk %d, %d: %s", cx, cz, err))
return
}
chunk.SetBiome(bx, bz, bio)
var newcol *gdk.Color
if rw.fixSnowIce {
newcol = rw.fixWeather(bio, bx, bz, chunk)
}
chunk.MarkModified()
// Update cache
if bc, ok := rw.bioCache[pos]; ok {
bc[bz*mcmap.ChunkSizeXZ+bx] = bio
}
// Update tile
if biotile, ok := rw.Biotiles[pos]; ok {
gdk.ThreadsEnter()
drawable := biotile.GetDrawable()
gc := gdk.NewGC(drawable)
gc.SetRgbFgColor(rw.bioLookup.Color(bio))
drawable.DrawRectangle(gc, true, bx*zoom, bz*zoom, zoom, zoom)
if newcol != nil {
drawable = rw.Maptiles[pos].GetDrawable()
gc = gdk.NewGC(drawable)
gc.SetRgbFgColor(newcol)
drawable.DrawRectangle(gc, true, bx*zoom, bz*zoom, zoom, zoom)
}
gdk.ThreadsLeave()
}
}
func configure_board(vbox *gtk.VBox) {
drawingarea = gtk.NewDrawingArea()
drawingarea.Connect("configure-event", func() {
if pixmap != nil {
pixmap.Unref()
}
var allocation gtk.Allocation
drawingarea.GetAllocation(&allocation)
pixmap = gdk.NewPixmap(drawingarea.GetWindow().GetDrawable(), allocation.Width, allocation.Height, 24)
gc = gdk.NewGC(pixmap.GetDrawable())
display_init_grid(gc, pixmap)
})
drawingarea.Connect("button-press-event", func(ctx *glib.CallbackContext) {
// Check if the game is running and if player click in the goban
if stopGame == true || stopClick == true {
return
}
if gdkwin == nil {
gdkwin = drawingarea.GetWindow()
}
arg := ctx.Args(0)
mev := *(**gdk.EventMotion)(unsafe.Pointer(&arg))
var mt gdk.ModifierType
var x, y int
if mev.IsHint != 0 {
gdkwin.GetPointer(&x, &y, &mt)
} else {
x, y = int(mev.X), int(mev.Y)
}
x = ((x - INTER/2) / INTER)
y = ((y - INTER/2) / INTER)
if x < 0 || x >= 19 || y < 0 || y >= 19 {
return
}
// end check
good, vic := event_play(x, y)
if good && iamode && stopGame == false && stopClick == false && vic == 0 {
calc_ai()
}
if good && !iamode && stopGame == false && stopClick == false && hint {
calcHint <- true
}
})
drawingarea.Connect("expose-event", func() {
if pixmap != nil {
drawingarea.GetWindow().GetDrawable().DrawDrawable(gc, pixmap.GetDrawable(), 0, 0, 0, 0, -1, -1)
}
})
drawingarea.SetEvents(int(gdk.POINTER_MOTION_MASK | gdk.POINTER_MOTION_HINT_MASK | gdk.BUTTON_PRESS_MASK))
vbox.Add(drawingarea)
}
func (rw *RegionWrapper) renderTile(chunk *mcmap.Chunk) (maptile, biotile *gdk.Pixmap, biocache []mcmap.Biome) {
maptile = emptyPixmap(tileSize, tileSize, 24)
mtDrawable := maptile.GetDrawable()
mtGC := gdk.NewGC(mtDrawable)
biotile = emptyPixmap(tileSize, tileSize, 24)
btDrawable := biotile.GetDrawable()
btGC := gdk.NewGC(btDrawable)
biocache = make([]mcmap.Biome, mcmap.ChunkRectXZ)
i := 0
for z := 0; z < mcmap.ChunkSizeXZ; z++ {
scanX:
for x := 0; x < mcmap.ChunkSizeXZ; x++ {
bio := chunk.Biome(x, z)
btGC.SetRgbFgColor(rw.bioLookup.Color(bio))
btDrawable.DrawRectangle(btGC, true, x*zoom, z*zoom, zoom, zoom)
biocache[i] = bio
i++
for y := chunk.Height(x, z); y >= 0; y-- {
if col, ok := blockColors[chunk.Block(x, y, z).ID]; ok {
mtGC.SetRgbFgColor(col)
mtDrawable.DrawRectangle(mtGC, true, x*zoom, z*zoom, zoom, zoom)
continue scanX
}
}
mtGC.SetRgbFgColor(gdk.NewColor("#ffffff"))
mtDrawable.DrawRectangle(mtGC, true, x*zoom, z*zoom, zoom, zoom)
}
}
return
}
func (mw *MapWidget) configure() {
if mw.pixmap != nil {
mw.pixmap.Unref()
}
alloc := mw.dArea.GetAllocation()
mw.w = alloc.Width
mw.h = alloc.Height
if !mw.isInit {
mw.offX = -(mw.w / 2)
mw.offZ = -(mw.h / 2)
mw.isInit = true
}
mw.updateChunkBounds()
mw.pixmap = gdk.NewPixmap(mw.dArea.GetWindow().GetDrawable(), mw.w, mw.h, 24)
mw.pixmapGC = gdk.NewGC(mw.pixmap.GetDrawable())
mw.drawBg()
mw.updateGUI()
}
func (mw *MapWidget) drawBg() {
if mw.bg != nil {
mw.bg.Unref()
}
mw.bg = emptyPixmap(mw.w, mw.h, 24)
drawable := mw.bg.GetDrawable()
gc := gdk.NewGC(drawable)
w := int(math.Ceil(float64(mw.w) / 32))
h := int(math.Ceil(float64(mw.h) / 32))
for y := 0; y < h; y++ {
for x := 0; x < w; x++ {
if (x % 2) == (y % 2) {
gc.SetRgbFgColor(checker1)
} else {
gc.SetRgbFgColor(checker2)
}
drawable.DrawRectangle(gc, true, x*32, y*32, 32, 32)
}
}
}
func colorBox(c *gdk.Color) *gtk.DrawingArea {
dArea := gtk.NewDrawingArea()
var pixmap *gdk.Pixmap
var gc *gdk.GC
dArea.Connect("configure-event", func() {
if pixmap != nil {
pixmap.Unref()
}
alloc := dArea.GetAllocation()
pixmap = gdk.NewPixmap(dArea.GetWindow().GetDrawable(), alloc.Width, alloc.Height, 24)
gc = gdk.NewGC(pixmap.GetDrawable())
gc.SetRgbFgColor(c)
pixmap.GetDrawable().DrawRectangle(gc, true, 0, 0, -1, -1)
})
dArea.Connect("expose-event", func() {
if pixmap != nil {
dArea.GetWindow().GetDrawable().DrawDrawable(gc, pixmap.GetDrawable(), 0, 0, 0, 0, -1, -1)
}
})
return dArea
}
func Init(title string) {
gtk.Init(nil)
window := gtk.NewWindow(gtk.WINDOW_TOPLEVEL)
window.SetPosition(gtk.WIN_POS_CENTER)
window.SetTitle(title)
window.SetIconName("gtk-dialog-info")
window.Connect("destroy", func(ctx *glib.CallbackContext) {
fmt.Println("got destroy!", ctx.Data().(string))
gtk.MainQuit()
}, "foo")
//--------------------------------------------------------
// GtkVBox
//--------------------------------------------------------
vbox := gtk.NewVBox(false, 1)
//--------------------------------------------------------
// GtkMenuBar
//--------------------------------------------------------
menubar := gtk.NewMenuBar()
vbox.PackStart(menubar, false, false, 0)
//--------------------------------------------------------
// GtkDrawable
//--------------------------------------------------------
drawingarea := gtk.NewDrawingArea()
//var gdkwin *gdk.Window
var pixmap *gdk.Pixmap
var gc *gdk.GC
drawingarea.Connect("configure-event", func() {
println("Configuring drawingArea!")
if pixmap != nil {
pixmap.Unref()
}
allocation := drawingarea.GetAllocation()
pixmap = gdk.NewPixmap(drawingarea.GetWindow().GetDrawable(), allocation.Width, allocation.Height, 24)
gc = gdk.NewGC(pixmap.GetDrawable())
gc.SetRgbFgColor(gdk.NewColor("white"))
pixmap.GetDrawable().DrawRectangle(gc, true, 0, 0, -1, -1)
gc.SetRgbFgColor(gdk.NewColor("black"))
gc.SetRgbBgColor(gdk.NewColor("white"))
pixmap.GetDrawable().DrawRectangle(gc, false, 0, 0, 10, 10)
})
drawingarea.Connect("expose-event", func() {
println("Exposing DrawingArea!")
if pixmap != nil {
drawingarea.GetWindow().GetDrawable().DrawDrawable(gc, pixmap.GetDrawable(), 0, 0, 0, 0, -1, -1)
}
})
vbox.Add(drawingarea)
//--------------------------------------------------------
// GtkScale
//--------------------------------------------------------
scale := gtk.NewHScaleWithRange(0, 100, 1)
scale.Connect("value-changed", func() {
//fmt.Println("scale:", int(scale.GetValue()))
})
vbox.Add(scale)
window.Add(vbox)
window.SetSizeRequest(600, 600)
window.ShowAll()
gtk.Main()
}
func main() {
gtk.Init(&os.Args)
window := gtk.NewWindow(gtk.WINDOW_TOPLEVEL)
window.SetTitle("GTK DrawingArea")
window.Connect("destroy", gtk.MainQuit)
vbox := gtk.NewVBox(true, 0)
vbox.SetBorderWidth(5)
drawingarea := gtk.NewDrawingArea()
var p1, p2 point
var gdkwin *gdk.Window
var pixmap *gdk.Pixmap
var gc *gdk.GC
p1.x = -1
p1.y = -1
colors := []string{
"black",
"gray",
"blue",
"purple",
"red",
"orange",
"yellow",
"green",
"darkgreen",
}
drawingarea.Connect("configure-event", func() {
if pixmap != nil {
pixmap.Unref()
}
allocation := drawingarea.GetAllocation()
pixmap = gdk.NewPixmap(drawingarea.GetWindow().GetDrawable(), allocation.Width, allocation.Height, 24)
gc = gdk.NewGC(pixmap.GetDrawable())
gc.SetRgbFgColor(gdk.NewColor("white"))
pixmap.GetDrawable().DrawRectangle(gc, true, 0, 0, -1, -1)
gc.SetRgbFgColor(gdk.NewColor(colors[0]))
gc.SetRgbBgColor(gdk.NewColor("white"))
})
drawingarea.Connect("motion-notify-event", func(ctx *glib.CallbackContext) {
arg := ctx.Args(0)
mev := *(**gdk.EventMotion)(unsafe.Pointer(&arg))
var mt gdk.ModifierType
if mev.IsHint != 0 {
gdkwin.GetPointer(&p2.x, &p2.y, &mt)
} else {
p2.x, p2.y = int(mev.X), int(mev.Y)
}
if p1.x != -1 && p2.x != -1 && (gdk.EventMask(mt)&gdk.BUTTON_PRESS_MASK) != 0 {
pixmap.GetDrawable().DrawLine(gc, p1.x, p1.y, p2.x, p2.y)
gdkwin.Invalidate(nil, false)
}
colors = append(colors[1:], colors[0])
gc.SetRgbFgColor(gdk.NewColor(colors[0]))
p1 = p2
})
drawingarea.Connect("expose-event", func() {
if pixmap == nil {
return
}
gdkwin.GetDrawable().DrawDrawable(gc, pixmap.GetDrawable(), 0, 0, 0, 0, -1, -1)
})
drawingarea.SetEvents(int(gdk.POINTER_MOTION_MASK | gdk.POINTER_MOTION_HINT_MASK | gdk.BUTTON_PRESS_MASK))
vbox.Add(drawingarea)
window.Add(vbox)
window.SetSizeRequest(400, 400)
window.ShowAll()
gdkwin = drawingarea.GetWindow()
gtk.Main()
}
func main() {
var autoupdating bool = false
var autoticker *time.Ticker
var entries [][]*gtk.Entry = make([][]*gtk.Entry, entitylimit)
for i := 0; i < entitylimit; i++ {
entries[i] = make([]*gtk.Entry, entityfields)
}
var entities []*physics.Entity = initentities(entries)
// Initialize gtk
gtk.Init(nil)
// WINDOW
window := gtk.NewWindow(gtk.WINDOW_TOPLEVEL)
window.SetPosition(gtk.WIN_POS_CENTER)
window.SetTitle("Gravity Visualization")
// Connect top window closing to gtk main loop closing
window.Connect("destroy", func(ctx *glib.CallbackContext) {
gtk.MainQuit()
})
// TOP VERTICAL BOX
topvbox := gtk.NewVBox(false, 1)
// NOTEBOOK FOR TABS
notebook := gtk.NewNotebook()
// DRAWING AREA VERTICAL BOX
davbox := gtk.NewVBox(false, 1)
// DRAWING AREA
drawingarea = gtk.NewDrawingArea()
drawingarea.SetSizeRequest(width, height)
drawingarea.ModifyBG(gtk.STATE_NORMAL, gdk.NewColor("white"))
drawingarea.Connect("expose_event", func() {
drawentities(entities)
})
davbox.PackStart(drawingarea, true, true, 0)
// TICK SPEED SLIDER
ticksliderhbox := gtk.NewHBox(false, 1)
ticksliderlabel := gtk.NewLabel("Time between ticks (ms)")
ticksliderhbox.Add(ticksliderlabel)
tickslider := gtk.NewHScaleWithRange(1, 1000, 100)
// Default value of 10 ms
tickslider.SetValue(10)
ticksliderhbox.Add(tickslider)
davbox.Add(ticksliderhbox)
// BUTTONS
buttons := gtk.NewHBox(false, 1)
// RESET MENU ITEM
resetbutton := gtk.NewButtonWithLabel("Reset")
resetbutton.Clicked(func() {
entities = initentities(entries)
drawingarea.QueueDraw()
})
buttons.Add(resetbutton)
// TICK MENU ITEM
tickbutton := gtk.NewButtonWithLabel("Tick")
tickbutton.Clicked(func() {
updateentities(entities)
})
buttons.Add(tickbutton)
// AUTOUPDATE MENU ITEM
autotickbutton := gtk.NewToggleButtonWithLabel("AutoUpdate")
autotickbutton.Clicked(func() {
// Stop the previous ticker if it exists
if autoticker != nil {
autoticker.Stop()
}
if autoupdating {
// Toggle autoupdating state
autoupdating = false
} else {
// Start the ticker
autoticker = time.NewTicker(time.Duration(tickslider.GetValue()) * time.Millisecond)
// Spawn a goroutine that will run update entities every tick
go func() {
for _ = range autoticker.C {
updateentities(entities)
}
}()
// Toggle autoupdating state
autoupdating = true
}
})
buttons.Add(autotickbutton)
davbox.Add(buttons)
notebook.AppendPage(davbox, gtk.NewLabel("Simulation"))
// INITIALIZE PANEL
entitiesvbox := gtk.NewVBox(false, 1)
// INITIALIZE LABELS FOR TABLE
titles := gtk.NewHBox(false, 1)
titles.Add(gtk.NewLabel("Mass"))
titles.Add(gtk.NewLabel("X-Pos"))
titles.Add(gtk.NewLabel("Y-Pos"))
titles.Add(gtk.NewLabel("X-Vel"))
titles.Add(gtk.NewLabel("Y-Vel"))
titles.Add(gtk.NewLabel("X-Acc"))
titles.Add(gtk.NewLabel("Y-Acc"))
entitiesvbox.Add(titles)
// INITIALIZE ENTRIES IN ROWS FOR TABLE
for row := 0; row < entitylimit; row++ {
rowbox := gtk.NewHBox(false, 1)
for col := 0; col < entityfields; col++ {
textfield := gtk.NewEntry()
// Hold reference to text field in entries 2d array
entries[row][col] = textfield
rowbox.Add(textfield)
}
entitiesvbox.Add(rowbox)
}
// CLEAR ENTITIES BUTTON
clearentitiesbutton := gtk.NewButtonWithLabel("Clear Entries")
clearentitiesbutton.Clicked(func() {
for row := 0; row < entitylimit; row++ {
for col := 0; col < entityfields; col++ {
entries[row][col].SetText("")
}
}
})
entitiesvbox.Add(clearentitiesbutton)
// Limit the size of the entitiesvbox and add to notebook
entitiesvbox.SetSizeRequest(width, height)
notebook.AppendPage(entitiesvbox, gtk.NewLabel("Entities"))
// FINISH PACKING COMPONENTS
topvbox.PackStart(notebook, false, false, 0)
// FINISH PACKING WINDOW
window.Add(topvbox)
// Show the GUI
window.ShowAll()
// Grab the drawable and initialize graphics context now that they are initialized
drawable = drawingarea.GetWindow().GetDrawable()
blackgc = gdk.NewGC(drawable)
redgc = gdk.NewGC(drawable)
redgc.SetRgbFgColor(gdk.NewColorRGB(255, 0, 0))
bluegc = gdk.NewGC(drawable)
bluegc.SetRgbFgColor(gdk.NewColorRGB(0, 0, 255))
gtk.Main()
}