diff options
Diffstat (limited to 'src/display/sp-canvas.cpp')
| -rw-r--r-- | src/display/sp-canvas.cpp | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/display/sp-canvas.cpp b/src/display/sp-canvas.cpp index 6b7836d2e..a311de7f1 100644 --- a/src/display/sp-canvas.cpp +++ b/src/display/sp-canvas.cpp @@ -1154,7 +1154,7 @@ void SPCanvas::handle_size_allocate(GtkWidget *widget, GtkAllocation *allocation Geom::IntRect new_area = Geom::IntRect::from_xywh(canvas->_x0, canvas->_y0, allocation->width, allocation->height); - // resize backing store; the clean region does not change + // resize backing store cairo_surface_t *new_backing_store = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, allocation->width, allocation->height); if (canvas->_backing_store) { @@ -1167,9 +1167,12 @@ void SPCanvas::handle_size_allocate(GtkWidget *widget, GtkAllocation *allocation } canvas->_backing_store = new_backing_store; + // Clip the clean region to the new allocation + cairo_rectangle_int_t crect = { canvas->_x0, canvas->_y0, allocation->width, allocation->height }; + cairo_region_intersect_rectangle(canvas->_clean_region, &crect); + gtk_widget_set_allocation (widget, allocation); - // Schedule redraw of new region if (SP_CANVAS_ITEM_GET_CLASS (canvas->_root)->viewbox_changed) SP_CANVAS_ITEM_GET_CLASS (canvas->_root)->viewbox_changed (canvas->_root, new_area); @@ -1178,6 +1181,7 @@ void SPCanvas::handle_size_allocate(GtkWidget *widget, GtkAllocation *allocation allocation->x, allocation->y, allocation->width, allocation->height); } + // Schedule redraw of any newly exposed regions canvas->addIdle(); } @@ -1818,8 +1822,6 @@ gboolean SPCanvas::handle_draw(GtkWidget *widget, cairo_t *cr) { cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); cairo_paint(cr); cairo_restore(cr); - /*cairo_set_source(cr, canvas->_background); - cairo_paint(cr);*/ // Draw the clean portion if (!cairo_region_is_empty(draw_region)) { |