43 lines
1.0 KiB
C++
43 lines
1.0 KiB
C++
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/*
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* Helpers for ui data structures.
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*/
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// TOP
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static UI_Item*
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ui_list_add_item(Partition *arena, UI_List *list, UI_Item item){
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UI_Item_Node *node = push_array(arena, UI_Item_Node, 1);
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zdll_push_back(list->first, list->last, node);
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list->count += 1;
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node->fixed = item;
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return(&node->fixed);
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}
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static UI_Control
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ui_list_to_ui_control(Partition *arena, UI_List *list){
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UI_Control control = {0};
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control.items = push_array(arena, UI_Item, list->count);
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for (UI_Item_Node *node = list->first;
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node != 0;
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node = node->next){
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control.items[control.count++] = node->fixed;
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}
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return(control);
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}
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static UI_Item*
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ui_control_get_mouse_hit(UI_Control *control, int32_t mx, int32_t my){
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int32_t count = control->count;
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UI_Item *item = control->items + count - 1;
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for (int32_t i = 0; i < count; ++i, item -= 1){
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i32_Rect r = item->rectangle;
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if (r.x0 <= mx && mx < r.x1 && r.y0 <= my && my < r.y1){
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return(item);
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}
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}
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return(0);
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}
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// BOTTOM
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