Initial commit

engines/sword25/gfx/panel.cpp

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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/>.
+ *
+ */
+
+/*
+ * This code is based on Broken Sword 2.5 engine
+ *
+ * Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdoerfer
+ *
+ * Licensed under GNU GPL v2
+ *
+ */
+
+#include "sword25/gfx/panel.h"
+
+#include "sword25/kernel/inputpersistenceblock.h"
+#include "sword25/kernel/outputpersistenceblock.h"
+#include "sword25/gfx/graphicengine.h"
+#include "sword25/gfx/image/image.h"
+
+#include "sword25/gfx/renderobjectmanager.h"
+
+namespace Sword25 {
+
+Panel::Panel(RenderObjectPtr<RenderObject> parentPtr, int width, int height, uint color) :
+	RenderObject(parentPtr, RenderObject::TYPE_PANEL),
+	_color(color) {
+	_initSuccess = false;
+
+	_width = width;
+	_height = height;
+
+	if (_width < 0) {
+		error("Tried to initialize a panel with an invalid width (%d).", _width);
+		return;
+	}
+
+	if (_height < 0) {
+		error("Tried to initialize a panel with an invalid height (%d).", _height);
+		return;
+	}
+
+	_initSuccess = true;
+}
+
+Panel::Panel(InputPersistenceBlock &reader, RenderObjectPtr<RenderObject> parentPtr, uint handle) :
+	RenderObject(parentPtr, RenderObject::TYPE_PANEL, handle), _color(0) {
+	_initSuccess = unpersist(reader);
+}
+
+Panel::~Panel() {
+}
+
+bool Panel::doRender(RectangleList *updateRects) {
+	// Falls der Alphawert 0 ist, ist das Panel komplett durchsichtig und es muss nichts gezeichnet werden.
+	if (_color >> BS_ASHIFT == 0)
+		return true;
+
+	GraphicEngine *gfxPtr = Kernel::getInstance()->getGfx();
+	assert(gfxPtr);
+
+	for (RectangleList::iterator it = updateRects->begin(); it != updateRects->end(); ++it) {
+		const Common::Rect &clipRect = *it;
+		if (_bbox.intersects(clipRect)) {
+			Common::Rect intersectionRect = _bbox.findIntersectingRect(clipRect);
+			gfxPtr->fill(&intersectionRect, _color);
+		}
+	}
+
+	return true;
+}
+
+bool Panel::persist(OutputPersistenceBlock &writer) {
+	bool result = true;
+
+	result &= RenderObject::persist(writer);
+	writer.write(_color);
+
+	result &= RenderObject::persistChildren(writer);
+
+	return result;
+}
+
+bool Panel::unpersist(InputPersistenceBlock &reader) {
+	bool result = true;
+
+	result &= RenderObject::unpersist(reader);
+
+	uint32 color;
+	reader.read(color);
+	setColor(color);
+
+	result &= RenderObject::unpersistChildren(reader);
+
+	return reader.isGood() && result;
+}
+
+} // End of namespace Sword25