/* 将数值转换成LCUI_Rect型结构体 */
LCUI_API LCUI_Rect
Rect( int x, int y, int width, int height )
{
LCUI_Rect s;
Rect_Init (&s);
s.x = x;
s.y = y;
s.width = width;
s.height = height;
return s;
}
static void PictureBox_Init(LCUI_Widget *widget)
/* 功能：初始化图片盒子 */
{
LCUI_PictureBox *pic_box = (LCUI_PictureBox*)
Widget_Create_PrivData(widget, sizeof(LCUI_PictureBox));;
Rect_Init(&pic_box->read_box);
pic_box->image = NULL;
pic_box->scale = 1.0;
pic_box->size_mode = SIZE_MODE_CENTER;
Graph_Init(&pic_box->buff_graph);
Graph_Init(&pic_box->error_image);
Graph_Init(&pic_box->initial_image);
//Set_Widget_BG_Mode(widget, BG_MODE_FILL_BACKCOLOR);
}
void Get_Moved_Rect_Refresh_Area (int new_x, int new_y, LCUI_Rect rect,
LCUI_Rect * rect_a, LCUI_Rect * rect_b)
/* 功能：获取一个矩形移动后需要刷新的残留区域，也就是A和B两个区域。 */
{
Rect_Init (rect_a);
Rect_Init (rect_b);
if (rect.x < new_x)
{ /* 如果是向右移 */
rect_a->x = rect.x;
rect_a->y = rect.y;
rect_a->width = new_x - rect.x;
rect_a->height = rect.height;
if (rect.y > new_y)
{ /* 如果是向上移 */
rect_b->x = new_x;
rect_b->y = new_y + rect.height;
rect_b->width = rect.width - rect_a->width;
rect_b->height = rect.y - new_y;
}
else
{
rect_b->x = new_x;
rect_b->y = rect.y;
rect_b->width = rect.width - rect_a->width;
rect_b->height = new_y - rect.y;
}
}
else if (rect.x > new_x)
{ /* 如果是向左移 */
rect_a->x = new_x + rect.width;
rect_a->y = rect.y;
rect_a->width = rect.x - new_x;
rect_a->height = rect.height;
if (rect.y > new_y)
{ /* 如果是向上移 */
rect_b->x = rect.x;
rect_b->y = new_y + rect.height;
rect_b->width = rect.width - rect_a->width;
rect_b->height = rect.y - new_y;
}
else
{
rect_b->x = rect.x;
rect_b->y = rect.y;
rect_b->width = rect.width - rect_a->width;
rect_b->height = new_y - rect.y;
}
}
else
{ /* 否则，没有向左右移动，只有向上和向下 */
rect_a->x = rect.x;
rect_a->y = rect.y;
rect_a->width = 0;
rect_a->height = 0;
if (rect.y > new_y)
{ /* 如果是向上移 */
rect_b->x = rect.x;
rect_b->y = new_y + rect.height;
rect_b->width = rect.width;
rect_b->height = rect.y - new_y;
}
else
{
rect_b->x = rect.x;
rect_b->y = rect.y;
rect_b->width = rect.width;
rect_b->height = new_y - rect.y;
}
}
}
/*
* 功能：将有重叠部分的两个矩形，进行分割，并得到分割后的矩形
* 说明：主要用于局部区域刷新里，添加的需刷新的区域有可能会与已添加的区域重叠，为避免
* 重复刷新同一块区域，需要在添加时对矩形进行分割，得到完全重叠和不重叠的矩形。
* 参数说明：
* old ： 已存在的矩形区域
* new ： 将要添加的矩形区域
* rq ： 指向矩形的队列的指针
* 注意！传递参数时，请勿颠倒old和new位置。
**/
LCUI_API int
LCUIRect_Cut( LCUI_Rect old_rect,
LCUI_Rect new_rect,
LCUI_Queue *rects_buff )
{
int i;
LCUI_Rect r[5];
for(i=0; i<5; ++i) {
Rect_Init(&r[i]);
}
/* 计算各个矩形的x轴坐标和宽度 */
r[0].x = new_rect.x;
r[0].y = new_rect.y;
//printf("old,pos(%d,%d), size(%d,%d)\n", old_rect.x, old_rect.y, old_rect.width, old_rect.height);
//printf("new,pos(%d,%d), size(%d,%d)\n", new_rect.x, new_rect.y, new_rect.width, new_rect.height);
/* 如果前景矩形在背景矩形的左边 */
if(new_rect.x < old_rect.x) {
/* 如果X轴上与背景矩形不重叠 */
if(new_rect.x + new_rect.width <= old_rect.x) {
return -1;
}
r[0].width = old_rect.x - new_rect.x;
r[1].x = old_rect.x;
r[2].x = r[1].x;
r[4].x = r[2].x;
/* 如果前景矩形在X轴上包含背景矩形 */
if(new_rect.x + new_rect.width > old_rect.x + old_rect.width) {
r[1].width = old_rect.width;
r[3].x = old_rect.x + old_rect.width;
r[3].width = new_rect.x + new_rect.width - r[3].x;
} else { /* 得出矩形2的宽度 */
r[1].width = new_rect.x + new_rect.width - old_rect.x;
}
/* 得出矩形3和5的宽度 */
r[2].width = r[1].width;
r[4].width = r[2].width;
} else {
if(old_rect.x + old_rect.width <= new_rect.x) {
return -1;
}
r[1].x = new_rect.x;
r[2].x = r[1].x;
r[4].x = r[2].x;
if(new_rect.x + new_rect.width > old_rect.x + old_rect.width) {
r[1].width = old_rect.x + old_rect.width - r[1].x;
r[3].x = old_rect.x + old_rect.width;
r[3].width = new_rect.x + new_rect.width - r[3].x;
} else {
r[1].width = new_rect.width;
}
r[2].width = r[1].width;
r[4].width = r[2].width;
}
/* 计算各个矩形的y轴坐标和高度 */
r[0].height = new_rect.height;
r[3].y = new_rect.y;
r[3].height = r[0].height;
r[4].y = old_rect.y + old_rect.height;
if(new_rect.y < old_rect.y) {
if(new_rect.y + new_rect.height <= old_rect.y) {
return -1;
}
r[1].y = new_rect.y;
r[1].height = old_rect.y - new_rect.y;
r[2].y = old_rect.y;
/* 如果前景矩形在Y轴上包含背景矩形 */
if(new_rect.y + new_rect.height > old_rect.y + old_rect.height) {
r[2].height = old_rect.height;
r[4].height = new_rect.y + new_rect.height - r[4].y;
} else {
r[2].height = new_rect.y + new_rect.height - old_rect.y;
}
} else {
if(new_rect.y >= old_rect.y + old_rect.height) {
return -1;
}
r[2].y = new_rect.y;
if(new_rect.y + new_rect.height > old_rect.y + old_rect.height) {
r[2].height = old_rect.y + old_rect.height - r[2].y;
r[4].height = new_rect.y + new_rect.height - r[4].y;
} else r[2].height = new_rect.y + new_rect.height - r[2].y;
}
//r[0].width -= 1;
//r[1].height -= 1;
//r[3].x += 1;
//r[3].width -= 1;
//r[4].y += 1;
//r[4].height -= 1;
for(i=0; i<5; i++) {
//if(debug_mark)
// printf("slip rect[%d]: %d,%d, %d,%d\n", i, r[i].x, r[i].y, r[i].width, r[i].height);
Queue_Add(rects_buff, &r[i]);
}
return 0;
}
