/* 处理鼠标移动事件 */
static void
Window_ExecMove(LCUI_Widget *titlebar, LCUI_WidgetEvent *event)
{
LCUI_Pos pos, offset;
LCUI_Widget *window;
window = titlebar->parent;
if( !window ) {
return;
}
//_DEBUG_MSG( "new:%d,%d, cursor:%d,%d\n",
//event->drag.new_pos.x, event->drag.new_pos.y,
//event->drag.cursor_pos.x, event->drag.cursor_pos.y );
/* 将新全局坐标减去标题栏的全局坐标，得到偏移坐标 */
pos = Widget_GetGlobalPos( titlebar );
offset = Pos_Sub( event->drag.new_pos, pos );
pos = Widget_GetGlobalPos( window );
/* 将偏移坐标加在窗口全局坐标上，得出窗口的新全局坐标 */
pos = Pos_Add( pos, offset );
/* 转换成在容器区域内的相对坐标 */
pos = Widget_ToRelPos( window->parent, pos );
/* 解除之前设定的align */
Widget_SetAlign( window, ALIGN_NONE, Pos(0,0) );
/* 移动窗口的位置 */
Widget_Move( window, pos );
}
TextLayer_Cursor_GetPixelPos( LCUI_TextLayer *layer )
/* 获取文本图层的光标相对于容器位置，单位为像素 */
{
LCUI_Pos pos;
pos = TextLayer_Cursor_GetFixedPixelPos( layer );
/* 加上偏移坐标 */
pos = Pos_Add( pos, layer->offset_pos );
return pos;
}
Frames_GetFrameMixPos(LCUI_Frames *stream, LCUI_Frame *frame)
/* 功能：获取指定帧在整个动画容器中的位置 */
{
LCUI_Pos pos;
pos = Align_Get_Pos( stream->size,
Graph_GetSize(frame->pic),
ALIGN_MIDDLE_CENTER );
return Pos_Add(pos, frame->offset);
}
static void
ScrollBar_Drag( LCUI_Widget *widget, LCUI_DragEvent *event )
{
static LCUI_Pos pos, offset;
static LCUI_ScrollBar *scrollbar;
if( !widget->parent ) {
return;
}
scrollbar = Get_Widget_PrivData( widget->parent );
pos = Get_Widget_Global_Pos( widget );
offset = Pos_Sub( event->new_pos, pos );
pos = Pos_Add( pos, offset );
pos = GlobalPos_ConvTo_RelativePos( widget, pos );
Move_ScrollBar( widget, pos );
/* 若函数指针有效，则调用回调函数 */
if( scrollbar->callback_func ) {
scrollbar->callback_func( scrollbar->data, scrollbar->arg );
}
}
static void
ScrollBar_Drag( LCUI_Widget *widget, LCUI_WidgetEvent *event )
{
static LCUI_Pos pos, offset;
static LCUI_ScrollBar *scrollbar;
if( !widget->parent ) {
return;
}
scrollbar = Widget_GetPrivData( widget->parent );
pos = Widget_GetGlobalPos( widget );
offset = Pos_Sub( event->drag.new_pos, pos );
pos = Pos_Add( pos, offset );
pos = GlobalPos_ConvTo_RelativePos( widget, pos );
Move_ScrollBar( widget, pos );
/* 若函数指针有效，则调用回调函数 */
if( scrollbar->callback_func ) {
//_DEBUG_MSG("current_num: %d, max_num: %d\n",
//scrollbar->data.current_num, scrollbar->data.max_num);
scrollbar->callback_func( scrollbar->data, scrollbar->arg );
}
}
TextLayer_Cursor_SetPos( LCUI_TextLayer *layer, LCUI_Pos pos )
/* 设定光标在文本框中的位置，并返回该光标的坐标，单位为像素 */
{
LCUI_Pos pixel_pos;
Text_RowData *row_ptr;
LCUI_CharData *char_ptr;
int rows, cols, total;
pixel_pos.x = pixel_pos.y = 0;
total = Queue_GetTotal( &layer->rows_data );
if( pos.y >= total ) {
pos.y = total-1;
}
if( pos.y < 0 ) {
pos.y = 0;
}
/* 累加pos.y行之前几行的高度 */
for( pixel_pos.y=0,rows=0; rows<pos.y; ++rows ) {
row_ptr = Queue_Get( &layer->rows_data, rows );
if( !row_ptr ) {
continue;
}
pixel_pos.y += row_ptr->max_size.h;
}
/* 获取当前行的指针 */
row_ptr = Queue_Get( &layer->rows_data, rows );
if( !row_ptr ) {
return pixel_pos;
}
/* 获取当前行的文字数 */
total = Queue_GetTotal( &row_ptr->string );
if( pos.x > total ) {
pos.x = total;
}
if( pos.x < 0 ) {
pos.x = 0;
}
/* 累计宽度 */
for( pixel_pos.x=0,cols=0; cols<pos.x; ++cols ) {
char_ptr = Queue_Get( &row_ptr->string, cols );
if( !char_ptr ) {
continue;
}
pixel_pos.x += char_ptr->bitmap->advance.x;
//printf("TextLayer_Cursor_SetPos(): pixel pos x: %d, total: %d, cols: %d, pos.x: %d\n",
//pixel_pos.x, total, cols, pos.x);
}
//printf("layer->current_des_pos: %d,%d, pos: %d,%d\n",
//layer->current_des_pos.x, layer->current_des_pos.y, pos.x, pos.y );
if( layer->current_des_pos.y > pos.y
|| (layer->current_des_pos.y == pos.y
&& layer->current_des_pos.x > pos.x)) {
layer->current_des_pos = pos;
TextLayer_Update_CurSrcPos( layer, 0 );
}
else if( layer->current_des_pos.y == pos.y
&& layer->current_des_pos.x == pos.x );
else {
layer->current_des_pos = pos;
TextLayer_Update_CurSrcPos( layer, 1 );
}
layer->current_des_pos = pos;
/* 加上偏移坐标 */
pixel_pos = Pos_Add( pixel_pos, layer->offset_pos );
/* 微调位置 */
pixel_pos.y += 2;
return pixel_pos;
}
TextLayer_Cursor_SetPixelPos( LCUI_TextLayer *layer, LCUI_Pos pixel_pos )
/*
* 功能：根据传入的二维坐标，设定光标在的文本图层中的位置
* 说明：该位置会根据当前位置中的字体位图来调整，确保光标显示在字体位图边上，而不
* 会遮挡字体位图；光标在文本图层中的位置改变后，在字符串中的位置也要做相应改变，
* 因为文本的添加，删减，都需要以光标当前所在位置对应的字符为基础。
* 返回值：文本图层中对应字体位图的坐标，单位为像素
* */
{
LCUI_Pos new_pos, pos;
Text_RowData *row_ptr;
LCUI_CharData *char_ptr;
int i, n, rows, cols, tmp;
pos.x = pos.y = 0;
rows = Queue_GetTotal( &layer->rows_data );
/* 减去偏移坐标 */
pixel_pos = Pos_Sub( pixel_pos, layer->offset_pos );
for( new_pos.y=0,i=0; i<rows; ++i ) {
row_ptr = Queue_Get( &layer->rows_data, i );
if( pixel_pos.y >= row_ptr->max_size.h ) {
pixel_pos.y -= row_ptr->max_size.h;
if(i < rows-1 ) {
new_pos.y += row_ptr->max_size.h;
continue;
}
}
break;
}
pos.y = i;
row_ptr = Queue_Get( &layer->rows_data, i );
if( !row_ptr ) {
cols = 0;
} else {
cols = Queue_GetTotal( &row_ptr->string );
}
for( new_pos.x=0,n=0; n<cols; ++n ) {
char_ptr = Queue_Get( &row_ptr->string, n );
if( !char_ptr ) {
continue;
}
tmp = char_ptr->bitmap->advance.x;
if( pixel_pos.x >= tmp/2 ) {
pixel_pos.x -= tmp;
new_pos.x += tmp;
if(n < cols-1 || (n == cols-1 && pixel_pos.x >= 0)) {
continue;
}
}
break;
}
pos.x = n;
/* 判断光标位置变化，以快速确定当前字符在源文本中的位置并更新 */
if( layer->current_des_pos.y > pos.y
|| (layer->current_des_pos.y == pos.y
&& layer->current_des_pos.x > pos.x)) {
layer->current_des_pos = pos;
/* 优先向左边遍历 */
TextLayer_Update_CurSrcPos( layer, 0 );
}
else if( layer->current_des_pos.y == pos.y
&& layer->current_des_pos.x == pos.x );
else {
layer->current_des_pos = pos;
/* 优先向右边遍历 */
TextLayer_Update_CurSrcPos( layer, 1 );
}
/* 加上偏移坐标 */
new_pos = Pos_Add( new_pos, layer->offset_pos );
return new_pos;
}