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Viewing changes to unity/unity_window_decorator/src/gdk.c

  • Committer: David Barth
  • Date: 2011-04-05 20:20:54 UTC
  • Revision ID: david.barth@canonical.com-20110405202054-fnh0y5t2s228mf4k
re-integrate the unity-window-decorator, for real this time

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Lines of Context:
unity/unity_window_decorator/src/gdk.c
 
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#include "gtk-window-decorator.h"
 
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GdkPixmap *
 
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pixmap_new_from_pixbuf (GdkPixbuf *pixbuf, int depth)
 
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{
 
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    GdkPixmap *pixmap;
 
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    guint     width, height;
 
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    cairo_t   *cr;
 
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    width  = gdk_pixbuf_get_width (pixbuf);
 
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    height = gdk_pixbuf_get_height (pixbuf);
 
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    pixmap = create_pixmap (width, height, depth);
 
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    if (!pixmap)
 
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        return NULL;
 
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    cr = (cairo_t *) gdk_cairo_create (GDK_DRAWABLE (pixmap));
 
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    gdk_cairo_set_source_pixbuf (cr, pixbuf, 0, 0);
 
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    cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
 
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    cairo_paint (cr);
 
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    cairo_destroy (cr);
 
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    return pixmap;
 
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}
 
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void
 
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gdk_cairo_set_source_color_alpha (cairo_t  *cr,
 
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                                  GdkColor *color,
 
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                                  double   alpha)
 
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{
 
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    cairo_set_source_rgba (cr,
 
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                           color->red   / 65535.0,
 
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                           color->green / 65535.0,
 
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                           color->blue  / 65535.0,
 
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                           alpha);
 
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}
 
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inline GdkWindow *
 
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create_gdk_window (Window xframe)
 
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{
 
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    GdkDisplay  *display = gdk_display_get_default ();
 
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    GdkScreen   *screen  = gdk_display_get_default_screen (display);
 
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    GdkWindow   *window  = gdk_window_foreign_new (xframe);
 
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    GdkColormap *cmap    = gdk_screen_get_rgb_colormap (screen);
 
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    gdk_drawable_set_colormap (GDK_DRAWABLE (window), cmap);
 
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    return window;
 
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}
 
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GdkColormap *
 
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get_colormap_for_drawable (GdkDrawable *d)
 
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{
 
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    GdkDisplay *display = gdk_display_get_default ();
 
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    GdkScreen  *screen  = gdk_display_get_default_screen (display);
 
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    if (gdk_drawable_get_depth (d) == 32)
 
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        return gdk_screen_get_rgba_colormap (screen);
 
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    return gdk_screen_get_rgb_colormap (screen);
 
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}
 
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XRenderPictFormat *
 
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get_format_for_drawable (decor_t *d, GdkDrawable *drawable)
 
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{
 
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    if (!d->frame_window || gdk_drawable_get_depth (drawable) == 32)
 
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        return xformat_rgba;
 
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    return xformat_rgb;
 
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}
 
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GdkPixmap *
 
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create_pixmap (int w,
 
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               int h,
 
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               int depth)
 
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{
 
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    GtkWidget *widget;
 
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    GdkWindow *window;
 
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    if (w == 0 || h == 0)
 
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        abort ();
 
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    widget = (depth > 24) ? style_window_rgba : style_window_rgb;
 
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    window = gtk_widget_get_window (widget);
 
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    return gdk_pixmap_new (GDK_DRAWABLE (window), w, h, depth);
 
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}
 
 
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