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engines/bagel/spacebar/baglib/bmp_object.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/>.
+ *
+ */
+
+#include "bagel/spacebar/baglib/bmp_object.h"
+#include "bagel/spacebar/boflib/app.h"
+
+namespace Bagel {
+namespace SpaceBar {
+
+CBagBmpObject::CBagBmpObject() : CBagObject() {
+	_xObjType = BMP_OBJ;
+	_bmp = nullptr;
+	_transparency = -1;
+
+	CBagObject::setOverCursor(1);
+	setTimeless(true);
+}
+
+CBagBmpObject::~CBagBmpObject() {
+	CBagBmpObject::detach();
+}
+
+ErrorCode CBagBmpObject::attach(CBofPalette *palette) {
+	_bmp = new CBofBitmap(getFileName(), palette);
+
+	return CBagObject::attach();
+}
+
+ErrorCode CBagBmpObject::detach() {
+	delete _bmp;
+	_bmp = nullptr;
+
+	return CBagObject::detach();
+}
+
+CBofRect CBagBmpObject::getRect() {
+	const CBofPoint curPos = getPosition();
+	CBofSize size;
+	if (_bmp)
+		size = _bmp->getSize();
+	return CBofRect(curPos, size);
+}
+
+ErrorCode CBagBmpObject::update(CBofBitmap *bmp, CBofPoint pt, CBofRect *srcRect, int maskColor) {
+	if (bmp) {
+		_transparency = maskColor;
+		if (srcRect) {
+			const CBofSize size = bmp->getSize();
+			if (pt.x < 0) {
+				srcRect->left -= pt.x;
+				pt.x = 0;
+			}
+			if (pt.y < 0) {
+				srcRect->top -= pt.y;
+				pt.y = 0;
+			}
+
+			int offset = srcRect->right + pt.x - size.cx;
+			if (offset >= 0) {
+				srcRect->right -= offset + 1;
+			}
+
+			offset = srcRect->bottom + pt.y - size.cy;
+			if (offset >= 0) {
+				srcRect->bottom -= offset + 1;
+			}
+		}
+		if (_bmp->paint(bmp, pt.x, pt.y, srcRect, maskColor))
+			return ERR_UNKNOWN;
+	}
+
+	return ERR_NONE;
+}
+
+bool CBagBmpObject::isInside(const CBofPoint &pt) {
+	if (_bmp && getRect().ptInRect(pt)) {
+		if (_transparency >= 0) {
+			const int x = pt.x - getRect().left;
+			const int y = pt.y - getRect().top;
+			const int color = _bmp->readPixel(x, y);
+			return color != _transparency;
+		}
+
+		return true;
+	}
+
+	return false;
+}
+
+} // namespace SpaceBar
+} // namespace Bagel