示例#1
0
/*
 * 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))
}
示例#2
0
文件: graph.go 项目: ntwyman/go-dsp
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
}
示例#3
0
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()
	}
}
示例#4
0
文件: display.go 项目: Khady/gomoku
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)
}
示例#5
0
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
}
示例#6
0
文件: mapwidget.go 项目: kch42/biomed
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()
}
示例#7
0
文件: mapwidget.go 项目: kch42/biomed
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)
		}
	}
}
示例#8
0
文件: colorbox.go 项目: kch42/biomed
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
}
示例#9
0
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()
}
示例#10
0
文件: drawable.go 项目: mattn/go-gtk
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()
}
示例#11
0
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()
}