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optimize list view paint children

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xianjimli 2020-01-28 17:19:15 +08:00
parent 69d43a1c89
commit 81065e3b76
2 changed files with 35 additions and 0 deletions
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4
docs/changes.md
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@ -1,4 +1,8 @@
# 最新动态
* 2020/01/28
* 优化list view paint children
* 增加emitter\_forward
* 2020/01/20
* compare\_color 不区分大小写(感谢Toby提供补丁)
* 为移植到iOS做了一下改进。

31
src/ext_widgets/scroll_view/list_view.c
View File

@ -217,6 +217,35 @@ static ret_t list_view_on_scroll_view_layout_children(widget_t* widget) {
return RET_OK;
}
static ret_t list_view_on_scroll_view_paint_children(widget_t* widget, canvas_t* c) {
int32_t left = 0;
int32_t top = 0;
int32_t bottom = 0;
int32_t right = 0;
WIDGET_FOR_EACH_CHILD_BEGIN(widget, iter, i)
if (!iter->visible) {
iter->dirty = FALSE;
continue;
}
left = c->ox + iter->x;
top = c->oy + iter->y;
bottom = top + iter->h;
right = left + iter->w;
if (left > c->clip_right || right < c->clip_left || top > c->clip_bottom ||
bottom < c->clip_top) {
iter->dirty = FALSE;
continue;
}
widget_paint(iter, c);
WIDGET_FOR_EACH_CHILD_END();
return RET_OK;
}
static ret_t list_view_on_add_child(widget_t* widget, widget_t* child) {
list_view_t* list_view = LIST_VIEW(widget);
const char* type = widget_get_type(child);
@ -236,6 +265,8 @@ static ret_t list_view_on_add_child(widget_t* widget, widget_t* child) {
scroll_view->on_scroll = list_view_on_scroll_view_scroll;
scroll_view->on_scroll_to = list_view_on_scroll_view_scroll_to;
scroll_view->on_layout_children = list_view_on_scroll_view_layout_children;
scroll_view->on_paint_children = list_view_on_scroll_view_paint_children;
} else if (tk_str_eq(type, WIDGET_TYPE_SCROLL_BAR) ||
tk_str_eq(type, WIDGET_TYPE_SCROLL_BAR_DESKTOP) ||
tk_str_eq(type, WIDGET_TYPE_SCROLL_BAR_MOBILE)) {