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/*
** ClanLib SDK
** Copyright (c) 1997-2005 The ClanLib Team
**
** This software is provided 'as-is', without any express or implied
** warranty. In no event will the authors be held liable for any damages
** arising from the use of this software.
**
** Permission is granted to anyone to use this software for any purpose,
** including commercial applications, and to alter it and redistribute it
** freely, subject to the following restrictions:
**
** 1. The origin of this software must not be misrepresented; you must not
** claim that you wrote the original software. If you use this software
** in a product, an acknowledgment in the product documentation would be
** appreciated but is not required.
** 2. Altered source versions must be plainly marked as such, and must not be
** misrepresented as being the original software.
** 3. This notice may not be removed or altered from any source distribution.
**
** Note: Some of the libraries ClanLib may link to may have additional
** requirements or restrictions.
**
** File Author(s):
**
** Magnus Norddahl
** (if your name is missing here, please add it)
*/
#include "precomp.h"
#include "API/GUI/component_move_handler.h"
#include "API/GUI/component.h"
#include "API/Display/keys.h"
/////////////////////////////////////////////////////////////////////////////
// CL_ComponentMoveHandler_Generic class:
class CL_ComponentMoveHandler_Generic
{
public:
CL_ComponentMoveHandler_Generic(CL_ComponentMoveHandler *move_handler);
void on_mouse_down(const CL_InputEvent &key);
void on_mouse_up(const CL_InputEvent &key);
void on_mouse_move(const CL_InputEvent &key);
CL_Slot slot_mouse_down;
CL_Slot slot_mouse_up;
CL_Slot slot_mouse_move;
bool is_active;
CL_Point mouse_origin;
CL_ComponentMoveHandler *move_handler;
};
/////////////////////////////////////////////////////////////////////////////
// CL_ComponentMoveHandler:
CL_ComponentMoveHandler::CL_ComponentMoveHandler(CL_Component *owner)
: CL_Component(owner)
{
impl = new CL_ComponentMoveHandler_Generic(this);
}
CL_ComponentMoveHandler::CL_ComponentMoveHandler(const CL_Rect &move_area, CL_Component *owner)
: CL_Component(move_area, owner)
{
impl = new CL_ComponentMoveHandler_Generic(this);
}
CL_ComponentMoveHandler::~CL_ComponentMoveHandler()
{
delete impl;
}
/////////////////////////////////////////////////////////////////////////////
// CL_ComponentMoveHandler_Generic implementation:
CL_ComponentMoveHandler_Generic::CL_ComponentMoveHandler_Generic(CL_ComponentMoveHandler *move_handler)
: move_handler(move_handler)
{
is_active = false;
slot_mouse_down = move_handler->sig_mouse_down().connect(
this, &CL_ComponentMoveHandler_Generic::on_mouse_down);
slot_mouse_up = move_handler->sig_mouse_up().connect(
this, &CL_ComponentMoveHandler_Generic::on_mouse_up);
slot_mouse_move = move_handler->sig_mouse_move().connect(
this, &CL_ComponentMoveHandler_Generic::on_mouse_move);
}
void CL_ComponentMoveHandler_Generic::on_mouse_down(const CL_InputEvent &key)
{
if(key.id == CL_MOUSE_LEFT)
{
mouse_origin = CL_Point((int)key.mouse_pos.x, (int)key.mouse_pos.y);
is_active = true;
move_handler->capture_mouse();
}
}
void CL_ComponentMoveHandler_Generic::on_mouse_up(const CL_InputEvent &key)
{
if(key.id == CL_MOUSE_LEFT)
{
is_active = false;
move_handler->release_mouse();
}
}
void CL_ComponentMoveHandler_Generic::on_mouse_move(const CL_InputEvent &key)
{
if(is_active == false)
return;
CL_Component *owner = move_handler->get_parent();
const CL_Rect &pos = owner->get_position();
int delta_x = key.mouse_pos.x - mouse_origin.x;
int delta_y = key.mouse_pos.y - mouse_origin.y;
owner->set_position(pos.left + delta_x, pos.top + delta_y);
}
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