diff options
Diffstat (limited to 'app/gfx/canvas_linux.cc')
-rw-r--r-- | app/gfx/canvas_linux.cc | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/app/gfx/canvas_linux.cc b/app/gfx/canvas_linux.cc index cf7352d..7e561c6 100644 --- a/app/gfx/canvas_linux.cc +++ b/app/gfx/canvas_linux.cc @@ -95,11 +95,29 @@ void Canvas::SizeStringInt(const std::wstring& text, cairo_surface_destroy(surface); } +void Canvas::ApplySkiaMatrixToCairoContext(cairo_t* cr) { + const SkMatrix& skia_matrix = getTotalMatrix(); + cairo_matrix_t cairo_matrix; + cairo_matrix_init(&cairo_matrix, + SkScalarToFloat(skia_matrix.getScaleX()), + SkScalarToFloat(skia_matrix.getSkewY()), + SkScalarToFloat(skia_matrix.getSkewX()), + SkScalarToFloat(skia_matrix.getScaleY()), + SkScalarToFloat(skia_matrix.getTranslateX()), + SkScalarToFloat(skia_matrix.getTranslateY())); + cairo_set_matrix(cr, &cairo_matrix); +} + void Canvas::DrawStringInt(const std::wstring& text, const gfx::Font& font, const SkColor& color, int x, int y, int w, int h, int flags) { - cairo_t* cr = beginPlatformPaint(); + cairo_surface_t* surface = beginPlatformPaint(); + cairo_t* cr = cairo_create(surface); + // We're going to draw onto the surface directly. This circumvents the matrix + // installed by Skia. Apply the matrix from skia to cairo so they align and + // we draw at the right place. + ApplySkiaMatrixToCairoContext(cr); PangoLayout* layout = pango_cairo_create_layout(cr); cairo_set_source_rgb(cr, @@ -151,6 +169,7 @@ void Canvas::DrawStringInt(const std::wstring& text, pango_cairo_show_layout(cr, layout); g_object_unref(layout); + cairo_destroy(cr); // NOTE: beginPlatformPaint returned its surface, we shouldn't destroy it. } |