Mirrors_UI_SDK/fltk
1
0
Fork 0
mirror of https://github.com/fltk/fltk.git synced 2026-05-13 20:08:51 +08:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

Correct draw translation by 0.5 pixels only
Build and Test / build-linux (push) Has been cancelled
Details
Build and Test / build-wayland (push) Has been cancelled
Details
Build and Test / build-macos (push) Has been cancelled
Details
Build and Test / build-windows (push) Has been cancelled
Details

Browse Source 
Using 1.5 pixels causes text to be rendered one pixel offset to the top
left. This is visible when text is selected as the characters touch the
top left border.

The fl_text_extents is also updated to make sure the bounding box is
properly placed.
This commit is contained in:
Rodrigo Arias Mallo
2026-03-01 21:55:11 +01:00
committed by ManoloFLTK
parent 486da9376d
commit e931c21e89
1 changed files with 3 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/drivers/Cairo/Fl_Cairo_Graphics_Driver.cxx
+3 -3
View File
@@ -1340,7 +1340,7 @@ void Fl_Cairo_Graphics_Driver::draw(const char* str, int n, float x, float y) {
if (!n) return;
cairo_save(cairo_);
Fl_Cairo_Font_Descriptor *fd = (Fl_Cairo_Font_Descriptor*)font_descriptor();
cairo_translate(cairo_, x - 1.5, y - (fd->line_height - fd->descent) / float(PANGO_SCALE) - 1.5);
cairo_translate(cairo_, x - 0.5, y - (fd->line_height - fd->descent) / float(PANGO_SCALE) - 0.5);
str = clean_utf8(str, n);
pango_layout_set_text(pango_layout_, str, n);
pango_cairo_show_layout(cairo_, pango_layout_); // 1.1O
@@ -1424,8 +1424,8 @@ void Fl_Cairo_Graphics_Driver::text_extents(const char* txt, int n, int& dx, int
pango_layout_get_extents(pango_layout_, &ink_rect, NULL);
double f = PANGO_SCALE;
Fl_Cairo_Font_Descriptor *fd = (Fl_Cairo_Font_Descriptor*)font_descriptor();
dx = ink_rect.x / f - 1;
dy = (ink_rect.y - fd->line_height + fd->descent) / f - 1;
dx = ink_rect.x / f;
dy = (ink_rect.y - fd->line_height + fd->descent) / f;
w = ceil(ink_rect.width / f);
h = ceil(ink_rect.height / f);
}