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Fix incorrect origin for drawing glyphs. Fixes #153.

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This commit is contained in:
Brian J. Burg 2012-10-24 16:24:04 -07:00
parent 91c7ca11b3
commit 416ffeaca6
1 changed files with 8 additions and 3 deletions
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11
src/servo/gfx/render_context.rs
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@ -74,6 +74,10 @@ impl RenderContext {
draw_surface_options, draw_options);
}
// TODO: azure takes the origin as the left or right baseline. We
// should be passing in a bunch of glyphs and the baseline
// point. The baseline point should be computed somewhere else,
// like Font::draw_to_context() or TextRun::draw_to_context().
pub fn draw_text(&self, bounds: Rect<Au>, run: &TextRun, range: Range) {
use ptr::{null};
use vec::raw::to_ptr;
@ -89,7 +93,8 @@ impl RenderContext {
use azure::cairo::bindgen::cairo_scaled_font_destroy;
let font = run.font;
// See the TODO above.
let y_adjust = font.metrics.descent;
let nfont: AzNativeFont = {
mType: AZ_NATIVE_FONT_CAIRO_FONT_FACE,
mFont: null()
@ -114,7 +119,7 @@ impl RenderContext {
fields: 0 as uint16_t
};
let mut origin = Point2D(bounds.origin.x, bounds.origin.y.add(&bounds.size.height));
let mut origin = Point2D(bounds.origin.x, bounds.origin.y.add(&bounds.size.height) - y_adjust);
let azglyphs = DVec();
azglyphs.reserve(range.length());
@ -232,7 +237,7 @@ fn get_cairo_font(font: &Font) -> *cairo_scaled_font_t {
cairo_matrix_init_identity(to_unsafe_ptr(&idmatrix));
let fontmatrix = idmatrix;
cairo_matrix_scale(to_unsafe_ptr(&fontmatrix), 20f as c_double, 20f as c_double);
cairo_matrix_scale(to_unsafe_ptr(&fontmatrix), 21f as c_double, 21f as c_double);
let options = cairo_font_options_create();
let cfont = cairo_scaled_font_create(face, to_unsafe_ptr(&fontmatrix),
to_unsafe_ptr(&idmatrix), options);