Author: Carlos Lopez <[email protected]>
Date: Mon Sep 3 22:21:26 2012 +0200
Layer_Freetype: add support for inverted text in Cairo-Pango render.
---
.../src/modules/lyr_freetype/lyr_freetype.cpp | 30 ++++++++++++++++++--
1 files changed, 27 insertions(+), 3 deletions(-)
diff --git a/synfig-core/src/modules/lyr_freetype/lyr_freetype.cpp
b/synfig-core/src/modules/lyr_freetype/lyr_freetype.cpp
index 14f3901..4fa1185 100644
--- a/synfig-core/src/modules/lyr_freetype/lyr_freetype.cpp
+++ b/synfig-core/src/modules/lyr_freetype/lyr_freetype.cpp
@@ -944,8 +944,17 @@ Layer_Freetype::accelerated_cairorender(Context
context,cairo_surface_t *surface
// Cairo context
cairo_surface_t* subimage;
+ cairo_surface_t* inverted;
subimage=cairo_surface_create_similar(surface,
CAIRO_CONTENT_COLOR_ALPHA, w, h);
cairo_t* subcr=cairo_create(subimage);
+ cairo_t* invertcr;
+ if(invert)
+ {
+ inverted=cairo_surface_create_similar(surface,
CAIRO_CONTENT_COLOR_ALPHA, w, h);
+ invertcr=cairo_create(inverted);
+ cairo_set_source_rgba(invertcr, color.get_r(), color.get_g(),
color.get_b(), color.get_a());
+ cairo_paint_with_alpha(invertcr, get_amount());
+ }
// Pango
PangoLayout *layout;
@@ -1007,7 +1016,8 @@ Layer_Freetype::accelerated_cairorender(Context
context,cairo_surface_t *surface
cairo_move_to(subcr, tx-logical_layout.width*orient[0],
(ty-(logical_layout.height+vspace_total)*vscale*orient[1])/vscale);
pango_cairo_show_layout(subcr, layout);
- if(0) // Debug
+ // Debug ink and logical lines
+ if(0)
{
pango_layout_get_pixel_extents(layout, &ink_rect,
&logical_rect);
// Render logical and ink rectangles
@@ -1037,16 +1047,30 @@ Layer_Freetype::accelerated_cairorender(Context
context,cairo_surface_t *surface
// Render the text on the target surface with the proper operator
cairo_restore(subcr);
+ if(invert)
+ {
+ cairo_set_source_surface(invertcr, subimage, 0,0);
+ cairo_set_operator(invertcr, CAIRO_OPERATOR_DEST_OUT);
+ cairo_paint_with_alpha(invertcr, get_amount());
+ }
cairo_t* cr=cairo_create(surface);
cairo_save(cr);
- cairo_set_source_surface(cr, subimage, 0, 0);
+ if(invert)
+ cairo_set_source_surface(cr, inverted, 0, 0);
+ else
+ cairo_set_source_surface(cr, subimage, 0, 0);
cairo_set_operator(cr, CAIRO_OPERATOR_OVER); // TODO: this has to be
the real operator
cairo_paint_with_alpha(cr, get_amount());
cairo_restore(cr);
- // Debug ink and logical lines
// Destroy and return
+ cairo_surface_destroy(subimage);
cairo_destroy(subcr);
+ if(invert)
+ {
+ cairo_surface_destroy(inverted);
+ cairo_destroy(invertcr);
+ }
cairo_destroy(cr);
pango_attr_list_unref(attrlist);
g_object_unref (layout);
------------------------------------------------------------------------------
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and
threat landscape has changed and how IT managers can respond. Discussions
will include endpoint security, mobile security and the latest in malware
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
_______________________________________________
Synfig-devl mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/synfig-devl
