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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "ultima/shared/engine/messages.h"
#include "ultima/shared/early/ultima_early.h"
#include "ultima/shared/early/game_base.h"
#include "ultima/shared/gfx/screen.h"
#include "ultima/shared/early/game.h"
namespace Ultima {
namespace Shared {
CMessage::CMessage() : BaseObject() {
}
bool CMessage::execute(TreeItem *target, const ClassDef *classDef, int flags) {
// If no target was specified, then there's nothing to do
if (!target)
return false;
bool result = false;
TreeItem *item = target;
TreeItem *nextItem = nullptr;
do {
if (flags & MSGFLAG_SCAN)
nextItem = item->scan(target);
if (!classDef || item->isInstanceOf(*classDef)) {
bool handled = perform(item);
if (handled) {
result = true;
if (flags & MSGFLAG_BREAK_IF_HANDLED)
return true;
}
}
item = nextItem;
} while (nextItem);
return result;
}
bool CMessage::execute(const Common::String &target, const ClassDef *classDef, int flags) {
// Scan for the target by name
GameBase *game = g_vm->_game;
for (TreeItem *treeItem = game; treeItem; treeItem = treeItem->scan(game)) {
if (!treeItem->getName().compareToIgnoreCase(target))
return execute(treeItem, classDef, flags);
}
return false;
}
const MSGMAP_ENTRY *CMessage::findMapEntry(const TreeItem *treeItem, const ClassDef &classDef) {
// Iterate through the class and any parent classes
for (const MSGMAP *msgMap = treeItem->getMessageMap(); msgMap->pFnGetBaseMap;
msgMap = msgMap->pFnGetBaseMap()) {
// Iterate through the map entries for this class
for (const MSGMAP_ENTRY *entry = msgMap->lpEntries;
entry->_classDef != nullptr; ++entry) {
// Check if the class or any of it's ancesotrs is handled by this entry
for (ClassDef def = (*entry->_classDef)(); def.hasParent(); def = def.parent()) {
if (def == classDef)
return entry;
}
}
}
return nullptr;
}
bool CMessage::perform(TreeItem *treeItem) {
const MSGMAP_ENTRY *entry = findMapEntry(treeItem, getType());
return entry && (*treeItem.*(entry->_fn))(this);
}
bool CMessage::supports(const TreeItem *treeItem, const ClassDef &classDef) {
return findMapEntry(treeItem, classDef) != nullptr;
}
bool CMessage::isMouseMsg() const {
return dynamic_cast<const CMouseMsg *>(this) != nullptr;
}
bool CMessage::isButtonDownMsg() const {
return dynamic_cast<const CMouseButtonDownMsg *>(this) != nullptr;
}
bool CMessage::isButtonUpMsg() const {
return dynamic_cast<const CMouseButtonUpMsg *>(this) != nullptr;
}
bool CMessage::isMouseMoveMsg() const {
return dynamic_cast<const CMouseMoveMsg *>(this) != nullptr;
}
bool CMessage::isDoubleClickMsg() const {
return dynamic_cast<const CMouseDoubleClickMsg *>(this) != nullptr;
}
} // End of namespace Shared
} // End of namespace Ultima
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