mirror of
https://github.com/libretro/scummvm.git
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142 lines
3.8 KiB
C++
142 lines
3.8 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "ultima/shared/gfx/visual_container.h"
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namespace Ultima {
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namespace Shared {
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namespace Gfx {
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BEGIN_MESSAGE_MAP(VisualContainer, VisualItem)
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ON_MESSAGE(MouseButtonDownMsg)
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ON_MESSAGE(MouseButtonUpMsg)
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ON_MESSAGE(MouseMoveMsg)
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ON_MESSAGE(MouseDoubleClickMsg)
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ON_MESSAGE(MouseWheelMsg)
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END_MESSAGE_MAP()
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bool VisualContainer::MouseButtonDownMsg(CMouseButtonDownMsg *msg) {
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if (msg->_buttons & MB_LEFT) {
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_mouseFocusItem = handleMouseMsg(msg);
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return _mouseFocusItem != nullptr;
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}
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return false;
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}
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bool VisualContainer::MouseButtonUpMsg(CMouseButtonUpMsg *msg) {
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if (msg->_buttons & MB_LEFT) {
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bool result = handleMouseMsg(msg) != nullptr;
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_mouseFocusItem = nullptr;
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return result;
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}
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return false;
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}
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bool VisualContainer::MouseDoubleClickMsg(CMouseDoubleClickMsg *msg) {
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if (msg->_buttons & MB_LEFT)
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return handleMouseMsg(msg);
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return false;
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}
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bool VisualContainer::MouseWheelMsg(CMouseWheelMsg *msg) {
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return handleMouseMsg(msg);
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}
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bool VisualContainer::MouseMoveMsg(CMouseMoveMsg *msg) {
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if (msg->_buttons & MB_LEFT)
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return handleMouseMsg(msg);
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return false;
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}
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bool VisualContainer::MouseDragMsg(CMouseDragMsg *msg) {
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return handleMouseMsg(msg);
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}
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VisualItem *VisualContainer::handleMouseMsg(CMouseMsg *msg) {
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if (_mouseFocusItem) {
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// An item currently has focus, so pass all events directly to
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// it, irrespective of whether the mouse is still in it or not
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msg->execute(_mouseFocusItem);
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return _mouseFocusItem;
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} else {
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// Iterate through each child and pass the message to the first
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// immediate child the mouse position falls within
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for (TreeItem *child = getFirstChild(); child; child = child->getNextSibling()) {
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VisualItem *item = dynamic_cast<VisualItem *>(child);
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if (item && item->getBounds().contains(msg->_mousePos)) {
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if (msg->execute(item))
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return item;
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}
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}
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return nullptr;
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}
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}
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void VisualContainer::draw() {
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// If the overall container is dirty, clear it
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if (_isDirty)
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getSurface().clear();
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// Iterate through each child and draw any dirty visual items
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for (TreeItem *child = getFirstChild(); child; child = child->getNextSibling()) {
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VisualItem *item = dynamic_cast<VisualItem *>(child);
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if (item && item->isDirty())
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item->draw();
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}
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_isDirty = false;
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}
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void VisualContainer::setDirty(bool dirty) {
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for (TreeItem *child = getFirstChild(); child; child = child->getNextSibling()) {
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VisualItem *item = dynamic_cast<VisualItem *>(child);
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if (item)
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item->setDirty(dirty);
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}
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VisualItem::setDirty(dirty);
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}
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bool VisualContainer::isDirty() const {
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if (_isDirty)
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return true;
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for (TreeItem *child = getFirstChild(); child; child = child->getNextSibling()) {
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VisualItem *item = dynamic_cast<VisualItem *>(child);
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if (item && item->isDirty())
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return true;
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}
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return false;
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}
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} // End of namespace Gfx
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} // End of namespace Shared
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} // End of namespace Ultima
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