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fixed termbox2's renderer incorrect text rendering behavior on horizontal scroll

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Daniel Mayovskiy 2025-10-02 19:29:39 -07:00
parent 7d8255d9f4
commit efc5030163
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GPG key ID: C28206FDE73CFB50
1 changed files with 14 additions and 0 deletions
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renderers/termbox2/clay_renderer_termbox2.c
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@ -1616,6 +1616,20 @@ void Clay_Termbox_Render(Clay_RenderCommandArray commands)
Clay_StringSlice *text = &render_data.stringContents;
int32_t i = 0;
// culling text characters that are outside of the layout
int h_clip = 0 - cell_box.x;
while(h_clip > 0 && i < text->length){
uint32_t ch = ' ';
int codepoint_length = tb_utf8_char_to_unicode(&ch, text->chars + i);
if (0 > codepoint_length) {
clay_tb_assert(false, "Invalid utf8");
}
i += codepoint_length;
h_clip -= 1;
}
// printing the rest of the characters
for (int y = box_begin_y; y < box_end_y; ++y) {
for (int x = box_begin_x; x < box_end_x;) {
uint32_t ch = ' ';