/* 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 );
}
/* 处理鼠标移动事件 */
static void Window_ExecMove( LCUI_Widget *window, LCUI_WidgetEvent *event )
{
LCUI_Pos pos;
/* 解除之前设定的align */
Widget_SetAlign( window, ALIGN_NONE, Pos(0,0) );
pos = Widget_ToRelPos( window->parent, event->drag.new_pos );
/* 移动窗口的位置 */
Widget_Move( window, pos );
}
static void LCUI_HandleMouseMotion( LCUI_Event *event, void *unused )
{
LCUI_Pos pos;
LCUI_Widget *tmp_widget, *widget;
LCUI_WidgetEvent wdg_event;
pos.x = event->motion.x;
pos.y = event->motion.y;
/* 获取当前鼠标游标覆盖到的部件的指针 */
widget = Widget_At( NULL, pos );
if( widget ) {
tmp_widget = GetWidgetOfResponseEvent( widget, EVENT_MOUSEMOTION );
if( tmp_widget ) {
wdg_event.type = EVENT_MOUSEMOTION;
pos = Widget_ToRelPos( tmp_widget, pos );
wdg_event.mouse_motion.rel_pos = pos;
Widget_DispatchEvent( tmp_widget, &wdg_event );
}
}
/* 如果没有部件处于按住状态 */
if( !click_widget ) {
/* 如果允许响应状态，就设置为OVERLAY状态，否则重置为NORMAL状态 */
if( Widget_IsAllowResponseEvent(widget) ) {
WidgetRecord_SetWidgetState( widget, WIDGET_STATE_OVERLAY );
} else {
WidgetRecord_SetWidgetState( widget, WIDGET_STATE_NORMAL );
}
}
/* 如果之前点击过部件，并且现在鼠标左键还处于按下状态，那就处理部件拖动 */
tmp_widget = GetWidgetOfResponseEvent( click_widget, EVENT_DRAG );
if( tmp_widget != click_widget ) {
return;
}
if( tmp_widget && event->motion.state == LCUIKEYSTATE_PRESSED ) {
DEBUG_MSG("doing drag\n");
_DragEvent_Do( tmp_widget, &event->motion );
}
}
/** 响应鼠标按键释放事件 */
static void LCUI_HandleMouseButtonUp( LCUI_MouseButtonEvent *event )
{
LCUI_Widget *tmp_widget, *widget;
LCUI_WidgetEvent tmp_event;
LCUI_Pos pos;
LCUI_BOOL can_click=TRUE;
if( !event || event->state != LCUIKEYSTATE_RELEASE ) {
return;
}
pos.x = event->x;
pos.y = event->y;
widget = Widget_At( NULL, pos );
if( !Widget_IsAllowResponseEvent(widget) ) {
return;
}
if( widget ) {
pos = Widget_ToRelPos( widget, pos );
tmp_event.type = EVENT_MOUSEBUTTON;
tmp_event.mouse_button.x = pos.x;
tmp_event.mouse_button.y = pos.y;
tmp_event.mouse_button.button = event->button;
tmp_event.mouse_button.state = event->state;
Widget_DispatchEvent( widget, &tmp_event );
}
if( event->button != LCUIKEY_LEFTBUTTON ) {
return;
}
DEBUG_MSG("mouse left button free, click_widget: %p\n", click_widget );
if( !click_widget ) {
/* 如果是点击屏幕空白处，则复位焦点 */
Widget_ResetFocus( NULL );
return;
}
/* 如果能拖动部件 */
if( can_drag_widget ) {
tmp_widget = GetWidgetOfResponseEvent( click_widget, EVENT_DRAG );
if( tmp_widget && tmp_widget == click_widget ) {
DEBUG_MSG("end drag\n");
/* 结束部件的拖动 */
can_click = _DragEvent_End( tmp_widget, event );
}
/* 标记为不能拖动部件 */
can_drag_widget = FALSE;
}
/* 如果不能处理点击，则跳转至后面的退出点 */
if( !can_click ) {
goto exit_point;
}
tmp_widget = GetWidgetOfResponseEvent( widget, EVENT_CLICKED );
/* 如果之前点击的部件和当前点击的部件一样 */
if( click_widget == tmp_widget ) {
/* 如果部件有效且已经启用 */
if( tmp_widget && tmp_widget->enabled ) {
tmp_event.type = EVENT_CLICKED;
pos.x = event->x;
pos.y = event->y;
tmp_event.clicked.rel_pos = Widget_ToRelPos( tmp_widget, pos );
Widget_DispatchEvent( tmp_widget, &tmp_event );
}
WidgetRecord_SetWidgetState( widget, WIDGET_STATE_ACTIVE );
}
exit_point:;
WidgetRecord_SetWidgetState( widget, WIDGET_STATE_OVERLAY );
click_widget = NULL;
}
/** 响应鼠标按键按下事件 */
static void LCUI_HandleMouseButtonDown( LCUI_MouseButtonEvent *event )
{
LCUI_Widget *widget, *tmp_widget;
LCUI_Pos pos;
LCUI_WidgetEvent wdg_event;
if( !event || event->state != LCUIKEYSTATE_PRESSED ) {
return;
}
pos.x = event->x;
pos.y = event->y;
old_cursor_pos.x = pos.x;
old_cursor_pos.y = pos.y;
widget = Widget_At( NULL, pos );
if( !Widget_IsAllowResponseEvent(widget) ) {
return;
}
/* 获取能够响应此事件的部件 */
tmp_widget = GetWidgetOfResponseEvent( widget, EVENT_MOUSEBUTTON );
if( widget && tmp_widget ) {
/* 开始准备事件数据 */
pos = Widget_ToRelPos( tmp_widget, pos );
wdg_event.type = EVENT_MOUSEBUTTON;
wdg_event.mouse_button.x = pos.x;
wdg_event.mouse_button.y = pos.y;
wdg_event.mouse_button.button = event->button;
wdg_event.mouse_button.state = event->state;
/* 派发事件 */
Widget_DispatchEvent( tmp_widget, &wdg_event );
}
if( event->button != LCUIKEY_LEFTBUTTON ) {
return;
}
tmp_widget = GetWidgetOfResponseEvent( widget, EVENT_CLICKED );
if( tmp_widget ) {
click_widget = tmp_widget;
tmp_widget = GetWidgetOfResponseEvent( widget, EVENT_DRAG );
if( click_widget == tmp_widget ) {
DEBUG_MSG("start drag\n");
/* 开始处理部件的拖动 */
_DragEvent_Start( tmp_widget, event );
/* 设置标记，表示可以进行部件拖动 */
can_drag_widget = TRUE;
} else {
/* 设置标记，表示不能进行部件拖动 */
can_drag_widget = FALSE;
}
} else {
click_widget = widget;
tmp_widget = GetWidgetOfResponseEvent( widget, EVENT_DRAG );
if( widget && tmp_widget ) {
DEBUG_MSG("start drag\n");
/* 开始处理部件的拖动 */
_DragEvent_Start( tmp_widget, event );
can_drag_widget = TRUE;
}
}
/* 焦点转移给该部件 */
Widget_SetFocus( click_widget );
WidgetRecord_SetWidgetState( widget, WIDGET_STATE_ACTIVE );
}
