static VALUE
rg_s_from_image(int argc, VALUE *argv, G_GNUC_UNUSED VALUE self)
{
VALUE cmap, src, src_x, src_y, width, height, dest, dest_x, dest_y;
GdkPixbuf* buf;
rb_scan_args(argc, argv, "63", &cmap, &src, &src_x, &src_y, &width, &height,
&dest, &dest_x, &dest_y);
buf = gdk_pixbuf_get_from_image(GDK_PIXBUF(RVAL2GOBJ(dest)),
GDK_IMAGE(RVAL2GOBJ(src)),
GDK_COLORMAP(RVAL2GOBJ(cmap)),
NUM2INT(src_x), NUM2INT(src_y),
NIL_P(dest_x) ? 0 : NUM2INT(dest_x),
NIL_P(dest_y) ? 0 : NUM2INT(dest_y),
NUM2INT(width), NUM2INT(height));
if (NIL_P(dest)) {
if (buf) {
return GOBJ2RVAL(buf);
} else {
return Qnil;
}
} else {
return dest;
}
}
void GtkViewWidget::repaint() {
GtkPaintContext >kContext = (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;
}
}