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theme: Scale window decorations on HiDPI displays

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As we opt out of GTK+/Clutter's HiDPI handling, we need to apply the
window scaling factor manually to decorations, both the geometry and
when drawing.

https://bugzilla.gnome.org/show_bug.cgi?id=744354
This commit is contained in:
Florian Müllner
2014-10-02 01:05:18 +02:00
parent 3a2920d4bc
commit 57c1078ee7
3 changed files with 84 additions and 30 deletions
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9
src/ui/frames.c
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@ -1389,6 +1389,7 @@ meta_ui_frame_get_mask (MetaUIFrame *frame,
MetaFrameBorders borders;
MetaFrameFlags flags;
MetaRectangle frame_rect;
int scale = meta_theme_get_window_scaling_factor ();
meta_window_get_frame_rect (frame->meta_window, &frame_rect);
@ -1396,9 +1397,13 @@ meta_ui_frame_get_mask (MetaUIFrame *frame,
meta_style_info_set_flags (frame->style_info, flags);
meta_ui_frame_get_borders (frame, &borders);
/* See comment in meta_frame_layout_draw_with_style() for details on HiDPI handling */
cairo_scale (cr, scale, scale);
gtk_render_background (frame->style_info->styles[META_STYLE_ELEMENT_FRAME], cr,
borders.invisible.left, borders.invisible.top,
frame_rect.width, frame_rect.height);
borders.invisible.left / scale,
borders.invisible.top / scale,
frame_rect.width / scale, frame_rect.height / scale);
}
/* XXX -- this is disgusting. Find a better approach here.