void ChromeClient::scroll(const IntSize& delta, const IntRect& rectToScroll, const IntRect& clipRect) { GdkWindow* window = GTK_WIDGET(m_webView)->window; if (!window) return; // We cannot use gdk_window_scroll here because it is only able to // scroll the whole window at once, and we often need to scroll // portions of the window only (think frames). GdkRectangle area = clipRect; GdkRectangle moveRect; GdkRectangle sourceRect = area; sourceRect.x -= delta.width(); sourceRect.y -= delta.height(); GdkRegion* invalidRegion = gdk_region_rectangle(&area); if (gdk_rectangle_intersect(&area, &sourceRect, &moveRect)) { GdkRegion* moveRegion = gdk_region_rectangle(&moveRect); gdk_window_move_region(window, moveRegion, delta.width(), delta.height()); gdk_region_offset(moveRegion, delta.width(), delta.height()); gdk_region_subtract(invalidRegion, moveRegion); gdk_region_destroy(moveRegion); } gdk_window_invalidate_region(window, invalidRegion, FALSE); gdk_region_destroy(invalidRegion); }
void ChromeClient::scroll(const IntSize& delta, const IntRect& rectToScroll, const IntRect& clipRect) { if (!m_webView) return; GdkWindow* window = GTK_WIDGET(m_webView)->window; if (!window) return; GdkRectangle area = clipRect; GdkRectangle moveRect; GdkRectangle sourceRect = area; sourceRect.x -= delta.width(); sourceRect.y -= delta.height(); GdkRegion* invalidRegion = gdk_region_rectangle(&area); if (gdk_rectangle_intersect(&area, &sourceRect, &moveRect)) { GdkRegion* moveRegion = gdk_region_rectangle(&moveRect); gdk_window_move_region(window, moveRegion, delta.width(), delta.height()); gdk_region_offset(moveRegion, delta.width(), delta.height()); gdk_region_subtract(invalidRegion, moveRegion); gdk_region_destroy(moveRegion); } gdk_window_invalidate_region(window, invalidRegion, FALSE); gdk_region_destroy(invalidRegion); }
void ChromeClient::scroll(const IntSize& delta, const IntRect& rectToScroll, const IntRect& clipRect) { GdkWindow* window = gtk_widget_get_window(GTK_WIDGET(m_webView)); if (!window) return; m_pendingScrollInvalidations = true; // We cannot use gdk_window_scroll here because it is only able to // scroll the whole window at once, and we often need to scroll // portions of the window only (think frames). GdkRectangle area = clipRect; GdkRectangle moveRect; GdkRectangle sourceRect = area; sourceRect.x -= delta.width(); sourceRect.y -= delta.height(); #ifdef GTK_API_VERSION_2 GdkRegion* invalidRegion = gdk_region_rectangle(&area); if (gdk_rectangle_intersect(&area, &sourceRect, &moveRect)) { GdkRegion* moveRegion = gdk_region_rectangle(&moveRect); gdk_window_move_region(window, moveRegion, delta.width(), delta.height()); gdk_region_offset(moveRegion, delta.width(), delta.height()); gdk_region_subtract(invalidRegion, moveRegion); gdk_region_destroy(moveRegion); } gdk_window_invalidate_region(window, invalidRegion, FALSE); gdk_region_destroy(invalidRegion); #else cairo_region_t* invalidRegion = cairo_region_create_rectangle(&area); if (gdk_rectangle_intersect(&area, &sourceRect, &moveRect)) { cairo_region_t* moveRegion = cairo_region_create_rectangle(&moveRect); gdk_window_move_region(window, moveRegion, delta.width(), delta.height()); cairo_region_translate(moveRegion, delta.width(), delta.height()); cairo_region_subtract(invalidRegion, moveRegion); cairo_region_destroy(moveRegion); } gdk_window_invalidate_region(window, invalidRegion, FALSE); cairo_region_destroy(invalidRegion); #endif }
static VALUE gdkwin_move_region(VALUE self, VALUE region, VALUE dx, VALUE dy) { gdk_window_move_region(_SELF(self), (GdkRegion*)RVAL2BOXED(region, GDK_TYPE_REGION), NUM2INT(dx), NUM2INT(dy)); return self; }
static VALUE rg_move_region(VALUE self, VALUE region, VALUE dx, VALUE dy) { gdk_window_move_region(_SELF(self), RVAL2CRREGION(region), NUM2INT(dx), NUM2INT(dy)); return self; }