Author: Carlos Lopez <genet...@gmail.com>
Date: Sun Mar 3 13:35:02 2013 +0100
Center the checkerboard with the focus of the canvas and draw always pixel
aligned rectangles on the checkerboard.
---
.../gui/workarearenderer/renderer_background.cpp | 11 +++++++----
1 files changed, 7 insertions(+), 4 deletions(-)
diff --git a/synfig-studio/src/gui/workarearenderer/renderer_background.cpp
b/synfig-studio/src/gui/workarearenderer/renderer_background.cpp
index 5d643ed..efdfd9b 100644
--- a/synfig-studio/src/gui/workarearenderer/renderer_background.cpp
+++ b/synfig-studio/src/gui/workarearenderer/renderer_background.cpp
@@ -91,11 +91,11 @@ Renderer_Background::render_vfunc(
cairo_surface_t *check;
- check=draw_check(32, 32);
+ check=draw_check(16, 16);
cairo_save(cr);
- cairo_set_source_surface(cr, check, 0, 0);
+ cairo_set_source_surface(cr, check, focus_point[0]/get_pw()+drawable_w/2,
focus_point[1]/get_ph()+drawable_h/2);
cairo_surface_destroy(check);
cairo_pattern_set_filter(cairo_get_source(cr), CAIRO_FILTER_NEAREST);
@@ -114,6 +114,9 @@ Renderer_Background::draw_check(int width, int height)
cairo_surface_t *surface;
cairo_t *cr;
+ width*=2;
+ height*=2;
+
surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
cr = cairo_create (surface);
cairo_surface_destroy (surface);
@@ -123,8 +126,8 @@ Renderer_Background::draw_check(int width, int height)
cairo_paint (cr);
cairo_set_source_rgb (cr, 0.65, 0.65, 0.65); /* dark gray */
- cairo_rectangle (cr, width / 2, 0, width / 2, height / 2);
- cairo_rectangle (cr, 0, height / 2, width / 2, height / 2);
+ cairo_rectangle (cr, int(width / 2), 0 , width / 2, height / 2);
+ cairo_rectangle (cr, 0, int(height / 2), width / 2, height / 2);
cairo_fill (cr);
surface = cairo_surface_reference (cairo_get_target (cr));
------------------------------------------------------------------------------
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