/* 缩放PictureBox部件的图片浏览区域 */
LCUI_API int
PictureBox_ZoomViewArea( LCUI_Widget *widget, double scale )
{
LCUI_Graph buff, temp;
LCUI_PictureBox *pic_box;
pic_box = Widget_GetPrivData(widget);
if(!Graph_IsValid(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);
Widget_Draw(widget);
Widget_Refresh(widget);
return 0;
}
static void
ActiveBox_RefreshFrame(LCUI_Graph *frame, void *arg)
/* 功能：刷新动画当前帧的显示 */
{
LCUI_Widget *widget = (LCUI_Widget*)arg;
Widget_Draw(widget);
}
/* 设定复选框为未选中状态 */
LCUI_API void
CheckBox_SetOff( LCUI_Widget *widget )
{
LCUI_CheckBox *check_box;
check_box = Widget_GetPrivData(widget);
check_box->on = FALSE;
Widget_Draw( widget );
}
/* 设定单选框为未选中状态 */
LCUI_API void
RadioButton_SetOff( LCUI_Widget widget )
{
LCUI_RadioButton *radio_button;
radio_button = Widget_GetPrivData(widget);
radio_button->on = FALSE;
Widget_Draw(widget);
}
static void
_putout_textbox_cursor( LCUI_Widget *widget, LCUI_WidgetEvent *unused )
{
LCUI_TextBox *tb;
if( widget == active_textbox ) {
active_textbox = NULL;
}
tb = Widget_GetPrivData( widget );
Widget_Hide( tb->cursor );
Widget_Draw( widget );
}
/* 移动PictureBox部件内的图片的显示区域的位置 */
LCUI_API int
PictureBox_MoveViewArea( LCUI_Widget *widget, LCUI_Pos des_pos )
{
LCUI_Size size;
LCUI_Graph *p;
LCUI_PictureBox *pic_box;
pic_box = Widget_GetPrivData(widget);
if(!Graph_IsValid(pic_box->image)) {
return -1;
}
if(pic_box->scale == 1.00 || !Graph_IsValid(&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->w) {
des_pos.x = p->w - size.w;
}
if(des_pos.y + size.h > p->h) {
des_pos.y = p->h - 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->w;
pic_box->read_box.center_y = (des_pos.y + size.h/2.0)/p->h;
Widget_Draw(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.w, pic_box->buff_graph.h);
return 0;
}
/* 设定单选框为选中状态 */
LCUI_API void
RadioButton_SetOn( LCUI_Widget widget )
{
LCUI_RadioButton *radio_button;
LCUI_Widget other;
int i, total;
radio_button = Widget_GetPrivData(widget);
/* 如果与其它部件有互斥关系，就将其它单选框部件的状态改为“未选中”状态 */
if( radio_button->mutex ) {
total = Queue_GetTotal(radio_button->mutex);
for(i=0; i<total; ++i) {
other = (LCUI_Widget*)Queue_Get(radio_button->mutex, i);
RadioButton_SetOff(other);
}
}
radio_button->on = TRUE;
Widget_Draw(widget);
}
/* 设定PictureBox部件的图片显示区域的大小 */
LCUI_API void
PictureBox_ResizeViewArea( LCUI_Widget *widget, int width, int height )
{
LCUI_Pos start, center_pos;
LCUI_PictureBox *pic_box;
pic_box = Widget_GetPrivData(widget);
if(width <= 0 || height <= 0) {
return;
}
if(!Graph_IsValid(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->w;
center_pos.y = pic_box->read_box.center_y * pic_box->scale * pic_box->image->h;
/* 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->w)
start.x = pic_box->image->w - width;
if(start.y + height > pic_box->image->h)
start.y = pic_box->image->h - height;
if(start.x < 0) {
start.x = 0;
width = pic_box->image->w;
}
if(start.y < 0) {
start.y = 0;
height = pic_box->image->h;
}
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 */
Widget_Draw(widget);
Widget_Refresh(widget);
}
/* 设定图像显示模式 */
LCUI_API void
PictureBox_SetSizeMode( LCUI_Widget *widget, int mode )
{
LCUI_Size my_size;
float scale_x,scale_y;
LCUI_PictureBox *pic_box;
pic_box = Widget_GetPrivData(widget);
if(pic_box->size_mode == mode) {
return;
}
pic_box->size_mode = mode;
if( !pic_box->image ) {
return;
}
my_size = _Widget_GetSize( widget );
switch(mode) {
case SIZE_MODE_BLOCK_ZOOM:
case SIZE_MODE_ZOOM:
if( my_size.w <= 0 || my_size.h <= 0) {
pic_box->scale = 1.0;
} else {
scale_x = (float)my_size.w / pic_box->image->w;
scale_y = (float)my_size.h / pic_box->image->h;
if(scale_x < scale_y) {
pic_box->scale = scale_x;
} else {
pic_box->scale = scale_y;
}
}
PictureBox_ZoomViewArea(widget, pic_box->scale);
break;
default: pic_box->scale = 1.0; break;
}
Widget_Draw(widget);
}
/* 自定义按钮在各种状态下显示的位图 */
LCUI_API void
Button_CustomStyle( LCUI_Widget *widget, LCUI_Graph *normal,
LCUI_Graph *over, LCUI_Graph *down,
LCUI_Graph *focus, LCUI_Graph *disable)
{
LCUI_Button *btn_data;
btn_data = Widget_GetPrivData(widget);
if( Graph_IsValid(normal) ) {
btn_data->btn_normal = *normal;
} else {
Graph_Init( &btn_data->btn_normal );
}
if( Graph_IsValid(over) ) {
btn_data->btn_over = *over;
} else {
Graph_Init( &btn_data->btn_over );
}
if( Graph_IsValid(down) ) {
btn_data->btn_down = *down;
} else {
Graph_Init( &btn_data->btn_down );
}
if( Graph_IsValid(focus) ) {
btn_data->btn_focus = *focus;
} else {
Graph_Init( &btn_data->btn_focus );
}
if( Graph_IsValid(disable) ) {
btn_data->btn_disable = *disable;
} else {
Graph_Init( &btn_data->btn_disable );
}
/* 设定为自定义风格 */
Widget_SetStyleID(widget, BUTTON_STYLE_CUSTOM);
Widget_Draw(widget); /* 重新绘制部件 */
}
static void
_putin_textbox_cursor( LCUI_Widget *widget, LCUI_WidgetEvent *unused )
{
active_textbox = widget;
Widget_Draw( widget );
}
/* 设定PictureBox部件显示的图像 */
LCUI_API void
PictureBox_SetImage( LCUI_Widget *widget, LCUI_Graph *image )
{
int i;
float scale_x,scale_y;
LCUI_Graph *graph;
LCUI_PictureBox *pic_box;
graph_data *data;
if( widget == NULL ) {
return;
}
graph = image;
pic_box = Widget_GetPrivData(widget);
for(i = 0;i < 2; ++i) {
/* 如果image有效 */
if(Graph_IsValid(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->w;
pic_box->read_box.height = graph->h;
pic_box->read_box.center_x = 0.5;
pic_box->read_box.center_y = 0.5;
pic_box->scale = 1.0;
//printf("PictureBox_SetImage(): img, w: %d, h: %d\n", graph->w, graph->h);
//printf("PictureBox_SetImage(): pb: w: %d, h: %d\n", widget->size.w, widget->size.h);
//printf("PictureBox_SetImage(): size mode: %d\n", pic_box->size_mode);
switch(pic_box->size_mode) {
case SIZE_MODE_BLOCK_ZOOM:
case SIZE_MODE_ZOOM:
//printf("PictureBox_SetImage(): widget: w: %d, h: %d\n", widget->size.w, widget->size.h);
if(widget->size.w <= 0 || widget->size.h <= 0) {
//printf("PictureBox_SetImage(): break\n");
break;
}
scale_x = (float)widget->size.w / pic_box->image->w;
scale_y = (float)widget->size.h / pic_box->image->h;
if(scale_x < scale_y) pic_box->scale = scale_x;
else pic_box->scale = scale_y;
//printf("PictureBox_SetImage(): scale: %.4f, x: %.4f, y: %.4f\n",
//pic_box->scale, scale_x, scale_y);
PictureBox_ZoomViewArea(widget, pic_box->scale);
//printf("PictureBox_SetImage(): 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->w >= widget->size.w) {
pic_box->read_box.x = (pic_box->image->w - widget->size.w)/2.0;
pic_box->read_box.width = widget->size.w;
}
if(pic_box->image->h >= widget->size.h) {
pic_box->read_box.y = (pic_box->image->h - widget->size.h)/2.0;
pic_box->read_box.height = widget->size.h;
}
break;
default : break;
}
break;
} else if(pic_box->image_state == IMAGE_STATE_LOADING) {
/* 使用对应的图片 */
if(Graph_IsValid(&pic_box->initial_image)) {
graph = &pic_box->initial_image;
} else {
return;
}
}
else { /* 使用对应的图片 */
if(Graph_IsValid(&pic_box->error_image)) {
graph = &pic_box->error_image;
pic_box->image_state = IMAGE_STATE_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 */
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);
}
}
Widget_Draw(widget);
}
