static void Exec_Update_Window(LCUI_Widget *win_p)
/* 功能：更新窗口图形数据 */
{
LCUI_Widget *titlebar = Get_Window_TitleBar(win_p);
LCUI_Widget *client_area = Get_Window_Client_Area(win_p);
/* 更改窗口边框风格时，这个函数起到一定作用，因为要根据风格来调整窗口的内容 */
Window_Widget_Auto_Size(win_p);
/* 更新下面的部件 */
Draw_Widget(titlebar);
Draw_Widget(client_area);
}
void Set_ProgressBar_Value(LCUI_Widget *widget, int value)
/* 功能：设定进度条当前值 */
{
LCUI_ProgressBar *pb = Get_Widget_PrivData(widget);
pb->value = value;
Draw_Widget(widget);
}
void Set_ProgressBar_Max_Value(LCUI_Widget *widget, int max_value)
/* 功能：设定进度条最大值 */
{
LCUI_ProgressBar *pb = Get_Widget_PrivData(widget);
pb->max_value = max_value;
Draw_Widget(widget);
}
void Set_PictureBox_Size_Mode(LCUI_Widget *widget, int mode)
/* 功能：设定图片盒子的图像显示模式 */
{
LCUI_PictureBox *pic_box = (LCUI_PictureBox*)
Get_Widget_PrivData(widget);
if(pic_box->size_mode == mode) return;
float scale_x,scale_y;
pic_box->size_mode = mode;
if(pic_box->image == NULL) return;
switch(mode) {
case SIZE_MODE_BLOCK_ZOOM:
case SIZE_MODE_ZOOM:
if( widget->size.w <= 0 || widget->size.h <= 0) {
pic_box->scale = 1.0;
} else {
scale_x = (float)widget->size.w / pic_box->image->width;
scale_y = (float)widget->size.h / pic_box->image->height;
if(scale_x < scale_y) pic_box->scale = scale_x;
else pic_box->scale = scale_y;
}
Zoom_PictureBox_View_Area(widget, pic_box->scale);
break;
default:
pic_box->scale = 1.0;
break;
}
Draw_Widget(widget);
}
int Zoom_PictureBox_View_Area(LCUI_Widget *widget, float scale)
/* 功能：缩放PictureBox部件的图片浏览区域 */
{
LCUI_Graph buff, temp;
LCUI_PictureBox *pic_box;
pic_box = Get_Widget_PrivData(widget);
if(!Graph_Valid(pic_box->image)) {
return -1;
}
Graph_Init(&buff);
Graph_Init(&temp);
/* 有效范围为2%~2000% */
if(scale < 0.02) {
scale = 0.02;
}
if(scale > 20) {
scale = 20;
}
if(pic_box->size_mode != SIZE_MODE_ZOOM
&& pic_box->size_mode != SIZE_MODE_BLOCK_ZOOM) {
pic_box->size_mode = SIZE_MODE_ZOOM; /* 改为缩放模式 */
}
pic_box->scale = scale;
Update_BuffGraph(widget);
Update_ReadBox(widget);
Draw_Widget(widget);
Refresh_Widget(widget);
return 0;
}
int
Label_TextStyle( LCUI_Widget *widget, LCUI_TextStyle style )
/* 为Label部件内显示的文本设定文本样式 */
{
LCUI_Label *label;
label = Get_Widget_PrivData( widget );
TextLayer_Text_Set_Default_Style( &label->layer, style );
Draw_Widget( widget );
return 0;
}
int Move_PictureBox_View_Area(LCUI_Widget *widget, LCUI_Pos des_pos)
/* 功能：移动图片盒子内的图片的显示区域的位置 */
{
LCUI_Size size;
LCUI_Graph *p;
LCUI_PictureBox *pic_box;
pic_box = Get_Widget_PrivData(widget);
if(!Graph_Valid(pic_box->image)) {
return -1;
}
if(pic_box->scale == 1.00 || !Graph_Valid(&pic_box->buff_graph)) {
p = pic_box->image;
} else {
p = &pic_box->buff_graph;
}
size.w = pic_box->read_box.width;
size.h = pic_box->read_box.height;
/* 处理区域数据，使之为有效区域 */
if(des_pos.x < 0) {
des_pos.x = 0;
}
if(des_pos.y < 0) {
des_pos.y = 0;
}
if(des_pos.x + size.w > p->width) {
des_pos.x = p->width - size.w;
}
if(des_pos.y + size.h > p->height) {
des_pos.y = p->height - size.h;
}
if(des_pos.x == pic_box->read_box.x
&& des_pos.y == pic_box->read_box.y) {
return 0;
}
/* 更新图片盒子内的图像 */
pic_box->read_box.x = des_pos.x;
pic_box->read_box.y = des_pos.y;
/* 重新计算中心点的位置 */
pic_box->read_box.center_x = (des_pos.x + size.w/2.0)/p->width;
pic_box->read_box.center_y = (des_pos.y + size.h/2.0)/p->height;
Draw_Widget(widget);
//用于调试
//printf("read box: %d,%d,%d,%d; %d/%d, %d/%d\n",
//pic_box->read_box.x, pic_box->read_box.y,
//pic_box->read_box.width, pic_box->read_box.height,
//pic_box->read_box.x + pic_box->read_box.width,
//pic_box->read_box.y + pic_box->read_box.height,
//pic_box->buff_graph.width, pic_box->buff_graph.height);
return 0;
}
void Resize_PictureBox_View_Area(LCUI_Widget *widget, int width, int height)
/* 功能：设定PictureBox部件的图片显示区域的大小 */
{
LCUI_Pos start, center_pos;
LCUI_PictureBox *pic_box;
pic_box = Get_Widget_PrivData(widget);
if(width <= 0 || height <= 0) {
return;
}
if(!Graph_Valid(pic_box->image)) {
return;
}
/* 将中心点位置转换成坐标 */
center_pos.x = pic_box->read_box.center_x * pic_box->scale * pic_box->image->width;
center_pos.y = pic_box->read_box.center_y * pic_box->scale * pic_box->image->height;
/* 处理区域数据，使之为有效区域 */
start.x = center_pos.x - width/2.0;
start.y = center_pos.y - height/2.0;
if(start.x < 0) start.x = 0;
if(start.y < 0) start.y = 0;
if(start.x + width > pic_box->image->width)
start.x = pic_box->image->width - width;
if(start.y + height > pic_box->image->height)
start.y = pic_box->image->height - height;
if(start.x < 0) {
start.x = 0;
width = pic_box->image->width;
}
if(start.y < 0) {
start.y = 0;
height = pic_box->image->height;
}
pic_box->read_box.x = start.x;
pic_box->read_box.y = start.y;
pic_box->read_box.width = width;
pic_box->read_box.height = height;
/* 更新图片盒子内的图像 */
Draw_Widget(widget);
Refresh_Widget(widget);
}
void Set_PictureBox_Image_From_Graph(LCUI_Widget *widget, LCUI_Graph *image)
/* 功能：添加一个图片数据至图片盒子 */
{
int i;
float scale_x,scale_y;
LCUI_Graph *graph = image;
LCUI_PictureBox *pic_box = (LCUI_PictureBox*)
Get_Widget_PrivData(widget);
for(i = 0; i < 2; ++i) {
/* 如果image有效 */
if(Graph_Valid(graph)) {
/* 图片更换了，就释放缓存图形 */
Graph_Free(&pic_box->buff_graph);
pic_box->image = graph;
/* 读取的范区域为整个图片区域 */
pic_box->read_box.x = 0;
pic_box->read_box.y = 0;
pic_box->read_box.width = graph->width;
pic_box->read_box.height = graph->height;
pic_box->read_box.center_x = 0.5;
pic_box->read_box.center_y = 0.5;
pic_box->scale = 1.0;
//printf("Set_PictureBox_Image_From_Graph(): img, w: %d, h: %d\n", graph->width, graph->height);
//printf("Set_PictureBox_Image_From_Graph(): pb: w: %d, h: %d\n", widget->size.w, widget->size.h);
//printf("Set_PictureBox_Image_From_Graph(): size mode: %d\n", pic_box->size_mode);
switch(pic_box->size_mode) {
case SIZE_MODE_BLOCK_ZOOM:
case SIZE_MODE_ZOOM:
//printf("Set_PictureBox_Image_From_Graph(): widget: w: %d, h: %d\n", widget->size.w, widget->size.h);
if(widget->size.w <= 0 || widget->size.h <= 0) {
//printf("Set_PictureBox_Image_From_Graph(): break\n");
break;
}
scale_x = (float)widget->size.w / pic_box->image->width;
scale_y = (float)widget->size.h / pic_box->image->height;
if(scale_x < scale_y) pic_box->scale = scale_x;
else pic_box->scale = scale_y;
//printf("Set_PictureBox_Image_From_Graph(): scale: %.4f, x: %.4f, y: %.4f\n",
//pic_box->scale, scale_x, scale_y);
Zoom_PictureBox_View_Area(widget, pic_box->scale);
//printf("Set_PictureBox_Image_From_Graph(): read box: %d,%d,%d,%d\n",
//pic_box->read_box.x, pic_box->read_box.y,
//pic_box->read_box.width, pic_box->read_box.height);
break;
/* 正常模式 */
case SIZE_MODE_NORMAL:
break;
/* 拉伸模式 */
case SIZE_MODE_STRETCH:
break;
/* 平铺模式 */
case SIZE_MODE_TILE:
break;
case SIZE_MODE_CENTER:
/* 判断图像的尺寸是否超出图片盒子的尺寸 */
if(pic_box->image->width >= widget->size.w) {
pic_box->read_box.x = (pic_box->image->width - widget->size.w)/2.0;
pic_box->read_box.width = widget->size.w;
}
if(pic_box->image->height >= widget->size.h) {
pic_box->read_box.y = (pic_box->image->height - widget->size.h)/2.0;
pic_box->read_box.height = widget->size.h;
}
break;
default :
break;
}
break;
} else if(pic_box->image_status == IMAGE_STATUS_LOADING) {
/* 使用对应的图片 */
if(Graph_Valid(&pic_box->initial_image)) {
graph = &pic_box->initial_image;
} else {
return;
}
}
else { /* 使用对应的图片 */
if(Graph_Valid(&pic_box->error_image)) {
graph = &pic_box->error_image;
pic_box->image_status = IMAGE_STATUS_FAIL;
} else {
return;
}
}
}
/* 如果记录中有该部件，那判断该部件使用的图像是否为同一个，不一样就释放之前的 */
graph_data *data;
i = find_widget_data(widget);
if(i >= 0) {
data = (graph_data*)Queue_Get(&picbox_graph_mem, i);
if(data->image != image) {
Queue_Delete(&picbox_graph_mem, i);
}
}
Draw_Widget(widget);
}
