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graphic-helper: properly handle very small multi_rects

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Before this patch, the multi_rect for a window switcher preview could be
broken with a very small window (e.g. alacritty resized to 1x1).
This commit is contained in:
tokyo4j 2025-05-05 02:02:59 +09:00
parent 44beeffbd7
commit b503e48623
1 changed files with 9 additions and 2 deletions
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11
src/common/graphic-helpers.c
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@ -45,6 +45,7 @@ border_rect_set_size(struct border_rect *rect, int width, int height)
{
assert(rect);
int border_width = rect->border_width;
assert(MIN(width, height) >= rect->border_width * 2);
/*
* The border is drawn like below:
@ -118,8 +119,14 @@ multi_rect_set_size(struct multi_rect *multi_rect, int width, int height)
assert(multi_rect);
int line_width = multi_rect->border_rects[0]->border_width;
for (size_t i = 0; i < 3; i++) {
border_rect_set_size(multi_rect->border_rects[i],
width - i * line_width * 2, height - i * line_width * 2);
int w = width - i * line_width * 2;
int h = height - i * line_width * 2;
bool is_valid_size = (w >= line_width * 2) && (h >= line_width * 2);
wlr_scene_node_set_enabled(&multi_rect->border_rects[i]->tree->node,
is_valid_size);
if (is_valid_size) {
border_rect_set_size(multi_rect->border_rects[i], w, h);
}
}
}