mirror of
https://github.com/Ryujinx/GtkSharp.git
synced 2024-12-23 17:35:33 +00:00
2005-12-16 John Luke <john.luke@gmail.com>
* samples/CairoSample.cs:
* samples/GtkCairo.cs:
* samples/Makefile.am: update the cairo sample, fixes bug #76324
svn path=/trunk/gtk-sharp/; revision=54558
This commit is contained in:
John Luke
parent
11fed02148
commit
dff7bfb364
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@ -1,3 +1,9 @@
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2005-12-16 John Luke <john.luke@gmail.com>
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* samples/CairoSample.cs:
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* samples/GtkCairo.cs:
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* samples/Makefile.am: update the cairo sample, fixes bug #76324
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2005-12-16 Mike Kestner <mkestner@novell.com>
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* gdk/PixbufLoader.custom (InitFromAssemblyResource): move stream
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@ -1,117 +1,155 @@
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//
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// Sample program demostrating using Cairo with Gtk#
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//
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using Gtk;
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using Gdk;
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using System;
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using Gtk;
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using Cairo;
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class X {
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static DrawingArea a, b;
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class Knockout : DrawingArea
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{
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static void Main ()
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{
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Application.Init ();
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Gtk.Window w = new Gtk.Window ("Hello");
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a = new DrawingArea ();
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a.ExposeEvent += new ExposeEventHandler (LineExposeHandler);
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b = new DrawingArea ();
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b.ExposeEvent += new ExposeEventHandler (CirclesExposeHandler);
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b.SizeAllocated += new SizeAllocatedHandler (SizeAllocatedHandler);
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Box box = new HBox (true, 0);
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//box.Add (a);
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box.Add (b);
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w.Add (box);
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w.ShowAll ();
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new Knockout ();
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Application.Run ();
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}
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static void LineExposeHandler (object obj, ExposeEventArgs args)
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Knockout ()
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{
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int offx, offy;
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using (Cairo.Graphics o = GtkCairo.GraphicsFromWindow (args.Event.Window, out offx, out offy)){
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o.SetRGBColor (1, 0, 0);
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o.Translate (-offx, -offy);
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o.MoveTo (0, 0);
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o.LineTo (100, 100);
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o.Stroke ();
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}
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Window win = new Window ("Cairo with Gtk#");
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win.SetDefaultSize (400, 400);
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win.DeleteEvent += new DeleteEventHandler (OnQuit);
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win.Add (this);
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win.ShowAll ();
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}
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static Rectangle rect;
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void OvalPath (Context cr, double xc, double yc, double xr, double yr)
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{
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Matrix m = cr.Matrix;
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cr.Translate (xc, yc);
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cr.Scale (1.0, yr / xr);
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cr.MoveTo (xr, 0.0);
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cr.Arc (0, 0, xr, 0, 2 * Math.PI);
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cr.ClosePath ();
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cr.Matrix = m;
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}
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void FillChecks (Context cr, int x, int y, int width, int height)
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{
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int CHECK_SIZE = 32;
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static void SizeAllocatedHandler (object obj, SizeAllocatedArgs args)
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{
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rect = args.Allocation;
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cr.Save ();
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Surface check = cr.Target.CreateSimilar (Content.Color, 2 * CHECK_SIZE, 2 * CHECK_SIZE);
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// draw the check
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Context cr2 = new Context (check);
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cr2.Operator = Operator.Source;
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cr2.Color = new Color (0.4, 0.4, 0.4);
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cr2.Rectangle (0, 0, 2 * CHECK_SIZE, 2 * CHECK_SIZE);
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cr2.Fill ();
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cr2.Color = new Color (0.7, 0.7, 0.7);
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cr2.Rectangle (x, y, CHECK_SIZE, CHECK_SIZE);
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cr2.Fill ();
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cr2.Rectangle (x + CHECK_SIZE, y + CHECK_SIZE, CHECK_SIZE, CHECK_SIZE);
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cr2.Fill ();
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//cr2.Destroy ();
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// Fill the whole surface with the check
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SurfacePattern check_pattern = new SurfacePattern (check);
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check_pattern.Extend = Extend.Repeat;
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cr.Source = check_pattern;
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cr.Rectangle (0, 0, width, height);
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cr.Fill ();
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check_pattern.Destroy ();
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check.Destroy ();
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cr.Restore ();
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}
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static void CirclesExposeHandler (object obj, ExposeEventArgs args)
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void Draw3Circles (Context cr, int xc, int yc, double radius, double alpha)
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{
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Rectangle area = args.Event.Area;
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Gdk.Window window = args.Event.Window;
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Pixmap p = new Pixmap (window, area.Width, area.Height, -1);
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double subradius = radius * (2 / 3.0 - 0.1);
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int x, y;
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//Cairo.Object o = p.CairoGraphics ();
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using (Cairo.Graphics o = GtkCairo.GraphicsFromWindow (window, out x, out y))
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{
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o.Translate (-area.X, -area.Y);
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DrawCircles (o, rect);
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//using (Gdk.GC gc = new Gdk.GC (window)){
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//window.DrawDrawable (gc, p, 0, 0, area.x, area.y, area.height, area.width);
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//}
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}
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}
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static void DrawCircles (Cairo.Graphics o, Gdk.Rectangle rect)
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{
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FillChecks (o, rect);
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cr.Color = new Color (1.0, 0.0, 0.0, alpha);
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OvalPath (cr, xc + radius / 3.0 * Math.Cos (Math.PI * 0.5), yc - radius / 3.0 * Math.Sin (Math.PI * 0.5), subradius, subradius);
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cr.Fill ();
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cr.Color = new Color (0.0, 1.0, 0.0, alpha);
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OvalPath (cr, xc + radius / 3.0 * Math.Cos (Math.PI * (0.5 + 2 / 0.3)), yc - radius / 3.0 * Math.Sin (Math.PI * (0.5 + 2 / 0.3)), subradius, subradius);
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cr.Fill ();
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cr.Color = new Color (0.0, 0.0, 1.0, alpha);
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OvalPath (cr, xc + radius / 3.0 * Math.Cos (Math.PI * (0.5 + 4 / 0.3)), yc - radius / 3.0 * Math.Sin (Math.PI * (0.5 + 4 / 0.3)), subradius, subradius);
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cr.Fill ();
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}
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const int CS = 32;
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static void FillChecks (Cairo.Graphics o, Gdk.Rectangle rect)
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void Draw (Context cr, int width, int height)
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{
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Surface check;
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// Draw the check
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o.Save ();
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using (check = Surface.CreateSimilar (o.TargetSurface, Format.RGB24, 2 * CS, 2 * CS)){
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#if true
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o.Save ();
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check.Repeat = 1;
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o.TargetSurface = check;
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o.Operator = Operator.Src;
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o.SetRGBColor (0.4, 0.4, 0.4);
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// Clear the background
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o.Rectangle (0, 0, 2*CS, 2*CS);
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o.Fill ();
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o.SetRGBColor (0.7, 0.7, 0.7);
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o.Rectangle (0, CS, CS, CS *2);
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o.Fill ();
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o.Rectangle (CS, 0, CS*2, CS);
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o.Fill ();
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o.Restore ();
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double radius = 0.5 * Math.Min (width, height) - 10;
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int xc = width / 2;
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int yc = height / 2;
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// Fill the surface with the check
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//o.SetPattern (check);
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o.Rectangle (0, 0, rect.Width, rect.Height);
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o.Fill ();
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#endif
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}
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o.Restore ();
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o.SetRGBColor (1, 0, 0);
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o.Alpha = 0.5;
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Console.WriteLine (rect);
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o.MoveTo (0, 0);
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o.LineTo (rect.Width, rect.Height);
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o.Stroke ();
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Surface overlay = cr.Target.CreateSimilar (Content.ColorAlpha, width, height);
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Surface punch = cr.Target.CreateSimilar (Content.Alpha, width, height);
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Surface circles = cr.Target.CreateSimilar (Content.ColorAlpha, width, height);
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FillChecks (cr, 0, 0, width, height);
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cr.Save ();
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// Draw a black circle on the overlay
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Context cr_overlay = new Context (overlay);
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cr_overlay.Color = new Color (0.0, 0.0, 0.0);
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OvalPath (cr_overlay, xc, yc, radius, radius);
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cr_overlay.Fill ();
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// Draw 3 circles to the punch surface, then cut
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// that out of the main circle in the overlay
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Context cr_tmp = new Context (punch);
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Draw3Circles (cr_tmp, xc, yc, radius, 1.0);
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//cr_tmp.Destroy ();
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cr_overlay.Operator = Operator.DestOut;
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cr_overlay.SetSourceSurface (punch, 0, 0);
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cr_overlay.Paint ();
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// Now draw the 3 circles in a subgroup again
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// at half intensity, and use OperatorAdd to join up
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// without seams.
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Context cr_circles = new Context (circles);
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cr_circles.Operator = Operator.Over;
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Draw3Circles (cr_circles, xc, yc, radius, 0.5);
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// cr_circles.Destroy ();
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cr_overlay.Operator = Operator.Add;
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cr_overlay.SetSourceSurface (circles, 0, 0);
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cr_overlay.Paint ();
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// cr_overlay.Destroy ();
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cr.SetSourceSurface (overlay, 0, 0);
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cr.Paint ();
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overlay.Destroy ();
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punch.Destroy ();
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circles.Destroy ();
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}
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protected override bool OnExposeEvent (Gdk.EventExpose e)
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{
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#if GTK_SHARP_2_8
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Context cr = Gdk.CairoHelper.Create (e.Window);
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#else
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Context cr = Gdk.Graphics.CreateDrawable (e.Window);
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#endif
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int w, h;
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e.Window.GetSize (out w, out h);
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Draw (cr, w, h);
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return true;
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}
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void OnQuit (object sender, DeleteEventArgs e)
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{
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Application.Quit ();
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}
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}
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@ -1,46 +1,91 @@
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//
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//
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// GDK-X11 interface
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//
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//
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// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using Cairo;
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using System.Reflection;
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using System.Runtime.InteropServices;
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using Gtk;
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using Cairo;
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public class GtkCairo {
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#region You can cut and paste this into your application
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[DllImport("libgdk-win32-2.0-0.dll")]
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static extern IntPtr gdk_x11_drawable_get_xdisplay (IntPtr raw);
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[DllImport("libgdk-win32-2.0-0.dll")]
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static extern IntPtr gdk_x11_drawable_get_xid (IntPtr raw);
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[DllImport("libgdk-win32-2.0-0.dll")]
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static extern void gdk_window_get_internal_paint_info(IntPtr raw, out IntPtr real_drawable, out int x_offset, out int y_offset);
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static public Cairo.Graphics GraphicsFromWindow (Gdk.Window window, out int offset_x, out int offset_y)
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{
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IntPtr real_drawable;
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Cairo.Graphics o = new Cairo.Graphics ();
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gdk_window_get_internal_paint_info (window.Handle, out real_drawable, out offset_x, out offset_y);
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IntPtr x11 = gdk_x11_drawable_get_xid (real_drawable);
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IntPtr display = gdk_x11_drawable_get_xdisplay (real_drawable);
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o.SetTargetDrawable (display, x11);
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return o;
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}
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static public Cairo.Graphics GraphicsFromDrawable (Gdk.Drawable drawable)
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{
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Cairo.Graphics o = new Cairo.Graphics ();
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IntPtr display = gdk_x11_drawable_get_xdisplay (drawable.Handle);
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o.SetTargetDrawable (display, gdk_x11_drawable_get_xid (drawable.Handle));
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return o;
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}
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static GtkCairo ()
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{
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namespace Gdk
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{
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public class Graphics
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{
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//Use [DllImport("libgdk-win32-2.0-0.dll")] for Win32
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[DllImport("libgdk-x11-2.0.so")]
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internal static extern IntPtr gdk_x11_drawable_get_xdisplay (IntPtr raw);
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[DllImport("libgdk-x11-2.0.so")]
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internal static extern IntPtr gdk_x11_drawable_get_xid (IntPtr raw);
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[DllImport("libgdk-x11-2.0.so")]
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internal static extern IntPtr gdk_drawable_get_visual (IntPtr raw);
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[DllImport("libgdk-x11-2.0.so")]
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internal static extern IntPtr gdk_x11_visual_get_xvisual (IntPtr raw);
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[DllImport("libgdk-x11-2.0.so")]
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internal static extern IntPtr gdk_cairo_create (IntPtr raw);
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public static Cairo.Context CreateDrawable (Gdk.Drawable drawable)
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{
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IntPtr x_drawable = IntPtr.Zero;
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int x_off = 0, y_off = 0;
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int x, y, w, h, d;
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((Gdk.Window)drawable).GetGeometry(out x, out y, out w, out h, out d);
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bool is_gdk_window = drawable is Gdk.Window;
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if (is_gdk_window)
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((Gdk.Window) drawable).GetInternalPaintInfo(out drawable,
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out x_off, out y_off);
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x_drawable = drawable.Handle;
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IntPtr visual = gdk_drawable_get_visual(x_drawable);
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IntPtr Xdisplay = gdk_x11_drawable_get_xdisplay(x_drawable);
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IntPtr Xvisual = gdk_x11_visual_get_xvisual(visual);
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IntPtr Xdrawable = gdk_x11_drawable_get_xid (x_drawable);
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Cairo.XlibSurface s = new Cairo.XlibSurface (Xdisplay,
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Xdrawable,
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Xvisual,
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w, h);
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Cairo.Context g = new Cairo.Context (s);
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// this can be safely removed now, just keep it for a bit more
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//Cairo.Context g = new Cairo.Context (
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// gdk_cairo_create (x_drawable ));
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if (is_gdk_window)
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g.Translate (-(double)x_off,-(double)y_off);
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return g;
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}
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}
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#endregion
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}
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@ -40,7 +40,7 @@ DOTNET_TARGETS=
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DOTNET_ASSEMBLY=
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endif
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TARGETS = polarfixed.exe custom-widget.exe custom-cellrenderer.exe gtk-hello-world.exe button.exe calendar.exe subclass.exe menu.exe size.exe scribble.exe scribble-xinput.exe treeviewdemo.exe managedtreeviewdemo.exe nodeviewdemo.exe testdnd.exe actions.exe $(GNOMEVFS_TARGETS) $(GNOME_TARGETS) $(GLADE_TARGETS) $(VTE_TARGETS) $(DOTNET_TARGETS)
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TARGETS = cairo-sample.exe polarfixed.exe custom-widget.exe custom-cellrenderer.exe gtk-hello-world.exe button.exe calendar.exe subclass.exe menu.exe size.exe scribble.exe scribble-xinput.exe treeviewdemo.exe managedtreeviewdemo.exe nodeviewdemo.exe testdnd.exe actions.exe $(GNOMEVFS_TARGETS) $(GNOME_TARGETS) $(GLADE_TARGETS) $(VTE_TARGETS) $(DOTNET_TARGETS)
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DEBUGS = $(addsuffix .mdb, $(TARGETS))
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