C++ (Cpp) gdk_drawable_copy_to_image示例

示例#1

文件： rbgdkdraw.c 项目： msakai/ruby-gnome2

static VALUE
rg_copy_to_image(VALUE self, VALUE image, VALUE xsrc, VALUE ysrc, VALUE xdst, VALUE ydst, VALUE w, VALUE h)
{
    return GOBJ2RVAL(gdk_drawable_copy_to_image(_SELF(self), 
                                                GDK_IMAGE(RVAL2GOBJ(image)),
                                                NUM2INT(xsrc), NUM2INT(ysrc),
                                                NUM2INT(xdst), NUM2INT(ydst),
                                                NUM2INT(w), NUM2INT(h)));
}

示例#2

文件： GtkViewWidget.cpp 项目： xufooo/fbreader-e2-test

void GtkViewWidget::repaint()	{
	GtkPaintContext &gtkContext = (GtkPaintContext&)view()->context();
	Angle angle = rotation();
	bool isRotated = (angle == DEGREES90) || (angle == DEGREES270);
	int w = isRotated ? myArea->allocation.height : myArea->allocation.width;
	int h = isRotated ? myArea->allocation.width : myArea->allocation.height;
	gtkContext.updatePixmap(myArea, w, h);
	view()->paint();
	switch (angle) {
		default:
			cleanOriginalPixbuf();
			cleanRotatedPixbuf();
			gdk_draw_pixmap(myArea->window, myArea->style->white_gc, gtkContext.pixmap(),
											0, 0, 0, 0, myArea->allocation.width, myArea->allocation.height);
			break;
		case DEGREES180:
			cleanRotatedPixbuf();
			if ((myOriginalPixbuf != 0) &&
					((gdk_pixbuf_get_width(myOriginalPixbuf) != w) ||
					 (gdk_pixbuf_get_height(myOriginalPixbuf) != h))) {
				cleanOriginalPixbuf();
			}
			if (myOriginalPixbuf == 0) {
				myOriginalPixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, false, 8, w, h);
				myImage = gdk_image_new(GDK_IMAGE_FASTEST, gdk_drawable_get_visual(gtkContext.pixmap()), w, h);
			}
			gdk_drawable_copy_to_image(gtkContext.pixmap(), myImage, 0, 0, 0, 0, w, h);
			gdk_pixbuf_get_from_image(myOriginalPixbuf, myImage, gdk_drawable_get_colormap(gtkContext.pixmap()),
																0, 0, 0, 0, w, h);
			::rotate180(myOriginalPixbuf);
			gdk_draw_pixbuf(myArea->window, myArea->style->white_gc, myOriginalPixbuf,
											0, 0, 0, 0, w, h, GDK_RGB_DITHER_NONE, 0, 0);
			break;
		case DEGREES90:
		case DEGREES270:
			if ((myOriginalPixbuf != 0) &&
					((gdk_pixbuf_get_width(myOriginalPixbuf) != w) ||
					 (gdk_pixbuf_get_height(myOriginalPixbuf) != h))) {
				cleanOriginalPixbuf();
			}
			if ((myRotatedPixbuf != 0) &&
					((gdk_pixbuf_get_width(myRotatedPixbuf) != h) ||
					 (gdk_pixbuf_get_height(myRotatedPixbuf) != w))) {
				cleanRotatedPixbuf();
			}
			if (myOriginalPixbuf == 0) {
				myOriginalPixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, false, 8, w, h);
				myImage = gdk_image_new(GDK_IMAGE_FASTEST, gdk_drawable_get_visual(gtkContext.pixmap()), w, h);
			}
			if (myRotatedPixbuf == 0) {
				myRotatedPixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, false, 8, h, w);
			}
			gdk_drawable_copy_to_image(gtkContext.pixmap(), myImage, 0, 0, 0, 0, w, h);
			gdk_pixbuf_get_from_image(myOriginalPixbuf, myImage, gdk_drawable_get_colormap(gtkContext.pixmap()),
																0, 0, 0, 0, w, h);
			::rotate90(myRotatedPixbuf, myOriginalPixbuf, angle == DEGREES90);
			gdk_draw_pixbuf(myArea->window, myArea->style->white_gc, myRotatedPixbuf,
											0, 0, 0, 0, h, w, GDK_RGB_DITHER_NONE, 0, 0);
			break;
	}
}