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authorAlessandro Ghedini <al3xbio@gmail.com>2012-01-21 19:07:09 +0100
committerAlessandro Ghedini <al3xbio@gmail.com>2012-01-21 19:07:09 +0100
commit60560a030fda3c539ff9dc1563b9926414a193da (patch)
tree77590b395685a8d48d3615e45629a1610d08c071 /src/images/image.vala
parentd6b2677825cbb423e2099563c16321c3e23d7899 (diff)
Imported Upstream version 0.4.0upstream/0.4.0
Diffstat (limited to 'src/images/image.vala')
-rw-r--r--src/images/image.vala67
1 files changed, 60 insertions, 7 deletions
diff --git a/src/images/image.vala b/src/images/image.vala
index 836e4e2..1d9674b 100644
--- a/src/images/image.vala
+++ b/src/images/image.vala
@@ -65,14 +65,39 @@ public class Image : GLib.Object {
/////////////////////////////////////////////////////////////////////
public Image.from_pixbuf(Gdk.Pixbuf pixbuf) {
- this.load_pixbuf(pixbuf);
+ if (pixbuf != null) this.load_pixbuf(pixbuf);
+ else this.surface = new Cairo.ImageSurface(Cairo.Format.ARGB32, 1, 1);
}
- public Image.capture_screen(int posx, int posy, int width, int height) {
+ /////////////////////////////////////////////////////////////////////
+ /// Captures a part of the screen.
+ /////////////////////////////////////////////////////////////////////
+
+ public Image.capture_screen(int posx, int posy, int width, int height, bool hide_pies = true) {
Gdk.Window root = Gdk.get_default_root_window();
- Gdk.Pixbuf pixbuf = Gdk.pixbuf_get_from_drawable(null, root, null, posx, posy, 0, 0, width, height);
+ #if HAVE_GTK_3
+ Gdk.Pixbuf pixbuf = Gdk.pixbuf_get_from_window(root, posx, posy, width, height);
+ #else
+ Gdk.Pixbuf pixbuf = Gdk.pixbuf_get_from_drawable(null, root, null, posx, posy, 0, 0, width, height);
+ #endif
+
this.load_pixbuf(pixbuf);
+
+ if (hide_pies) {
+ // check for opened pies
+ foreach (var window in PieManager.opened_windows) {
+ if (window.background != null) {
+ int x=0, y=0, dx=0, dy=0;
+ window.get_position(out x, out y);
+ window.get_size(out dx, out dy);
+
+ var ctx = this.context();
+ ctx.translate((int)(x-posx + (dx+3)/2), (int)(y-posy + (dy+3)/2));
+ window.background.paint_on(ctx);
+ }
+ }
+ }
}
/////////////////////////////////////////////////////////////////////
@@ -87,6 +112,7 @@ public class Image : GLib.Object {
this.load_pixbuf(pixbuf);
} else {
warning("Failed to load " + filename + "!");
+ this.surface = new Cairo.ImageSurface(Cairo.Format.ARGB32, 1, 1);
}
} catch (GLib.Error e) {
message("Error loading image file: %s", e.message);
@@ -106,6 +132,7 @@ public class Image : GLib.Object {
this.load_pixbuf(pixbuf);
} else {
warning("Failed to load " + filename + "!");
+ this.surface = new Cairo.ImageSurface(Cairo.Format.ARGB32, width, height);
}
} catch (GLib.Error e) {
message("Error loading image file: %s", e.message);
@@ -130,17 +157,39 @@ public class Image : GLib.Object {
/////////////////////////////////////////////////////////////////////
public void paint_on(Cairo.Context ctx, double alpha = 1.0) {
- ctx.set_source_surface(this.surface, -0.5*this.width()-1, -0.5*this.height()-1);
+ ctx.set_source_surface(this.surface, (int)(-0.5*this.width()-1), (int)(-0.5*this.height()-1));
if (alpha >= 1.0) ctx.paint();
else ctx.paint_with_alpha(alpha);
}
/////////////////////////////////////////////////////////////////////
+ /// Converts the image to a Gdk.Pixbuf.
+ /////////////////////////////////////////////////////////////////////
+
+ public Gdk.Pixbuf to_pixbuf() {
+ var pixbuf = new Gdk.Pixbuf.from_data(surface.get_data(), Gdk.Colorspace.RGB, true, 8,
+ width(), height(), surface.get_stride(), null);
+
+ pixbuf = pixbuf.copy();
+
+ // funny stuff here --- need to swap Red end Blue because Cairo
+ // and Gdk are different...
+ uint8* p = pixbuf.pixels;
+ for (int i=0; i<width()*height()*4-4; i+=4) {
+ var tmp = *(p + i);
+ *(p + i) = *(p + i + 2);
+ *(p + i + 2) = tmp;
+ }
+
+ return pixbuf;
+ }
+
+ /////////////////////////////////////////////////////////////////////
/// Returns a Cairo.Context for the Image.
/////////////////////////////////////////////////////////////////////
public Cairo.Context context() {
- return new Cairo.Context(this.surface);;
+ return new Cairo.Context(this.surface);
}
/////////////////////////////////////////////////////////////////////
@@ -148,7 +197,9 @@ public class Image : GLib.Object {
/////////////////////////////////////////////////////////////////////
public int width() {
- return this.surface.get_width();
+ if (this.surface != null)
+ return this.surface.get_width();
+ return 0;
}
/////////////////////////////////////////////////////////////////////
@@ -156,7 +207,9 @@ public class Image : GLib.Object {
/////////////////////////////////////////////////////////////////////
public int height() {
- return this.surface.get_height();
+ if (this.surface != null)
+ return this.surface.get_height();
+ return 0;
}
}