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improve fill_rect_gradient

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lixianjing 2024-04-08 17:39:52 +08:00
parent cc6d46cd83
commit 1936f74e11
2 changed files with 11 additions and 1 deletions
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1
docs/changes.md
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@ -5,6 +5,7 @@
* 修改为禁用和不接受用户消息的滚动条不响应滚动消息(感谢智明提供补丁)
* list view 增加check button示例
* 修复资源问题(感谢泽武提供补丁)
* 修正计算渐变色offset错误的问题(感谢颖健提供补丁)
2024/04/03
* list_view 屏蔽组合键功能(感谢兆坤提供补丁)

11
src/base/canvas.c
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@ -581,6 +581,8 @@ ret_t canvas_fill_rect(canvas_t* c, xy_t x, xy_t y, wh_t w, wh_t h) {
static ret_t canvas_fill_rect_gradient_impl(canvas_t* c, xy_t x, xy_t y, wh_t w, wh_t h,
gradient_t* gradient) {
rect_t r;
xy_t widget_y = y;
wh_t widget_h = h;
xy_t x2 = x + w - 1;
xy_t y2 = y + h - 1;
vgcanvas_t* vg = NULL;
@ -610,8 +612,15 @@ static ret_t canvas_fill_rect_gradient_impl(canvas_t* c, xy_t x, xy_t y, wh_t w,
if (gradient->degree == 180) {
uint32_t i = 0;
lcd_t* lcd = c->lcd;
float_t offset = 0.0f;
float_t base_y = 0.0f;
if (r.y > widget_y && r.h < widget_h) {
base_y = (float_t)(tk_abs(r.y - widget_y));
}
for (i = 0; i < h; i++) {
float offset = (float)i / (float)h;
offset = (float_t)(base_y + i) / (float_t)widget_h;
color_t color = gradient_get_color(gradient, offset);
lcd_set_stroke_color(lcd, color);
lcd_draw_hline(lcd, x, y + i, w);