diff options
Diffstat (limited to 'buffer.c')
| -rw-r--r-- | buffer.c | 12 |
1 files changed, 12 insertions, 0 deletions
@@ -2068,6 +2068,13 @@ u32 buffer_last_rendered_line(TextBuffer *buffer) { // Render the text buffer in the given rectangle void buffer_render(TextBuffer *buffer, Rect r) { + if (r.size.x < 1 || r.size.y < 1) { + // rectangle less than 1 pixel + // set x1,y1,x2,y2 to an size 0 rectangle + buffer->x1 = buffer->x2 = r.pos.x; + buffer->y1 = buffer->y2 = r.pos.y; + } + float x1, y1, x2, y2; rect_coords(r, &x1, &y1, &x2, &y2); // Correct the scroll, because the window size might have changed @@ -2096,6 +2103,8 @@ void buffer_render(TextBuffer *buffer, Rect r) { float line_number_width = ndigits_u64(buffer->nlines) * char_width + padding; TextRenderState text_state = text_render_state_default; + text_state.min_x = x1; + text_state.max_x = x2; text_state.min_y = y1; text_state.max_y = y2; @@ -2121,7 +2130,10 @@ void buffer_render(TextBuffer *buffer, Rect r) { x1 += border_thickness; } + if (x2 < x1) x2 = x1; + if (y2 < y1) y2 = y1; buffer->x1 = x1; buffer->y1 = y1; buffer->x2 = x2; buffer->y2 = y2; + if (x1 == x2 || y1 == y2) return; // change cursor to ibeam when it's hovering over the buffer if ((!ted->menu || buffer == &ted->line_buffer) && rect_contains_point(rect4(x1, y1, x2, y2), ted->mouse_pos)) { |