Initial commit

engines/mutationofjb/widgets/buttonwidget.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 "mutationofjb/widgets/buttonwidget.h"
+#include "common/events.h"
+#include "graphics/managed_surface.h"
+
+namespace MutationOfJB {
+
+ButtonWidget::ButtonWidget(GuiScreen &gui, const Common::Rect &area, const Graphics::Surface &normalSurface, const Graphics::Surface &pressedSurface) :
+	Widget(gui, area),
+	_normalSurface(normalSurface),
+	_pressedSurface(pressedSurface),
+	_callback(nullptr),
+	_pressed(false) {}
+
+void ButtonWidget::setCallback(ButtonWidgetCallback *callback) {
+	_callback = callback;
+}
+
+void ButtonWidget::handleEvent(const Common::Event &event) {
+	switch (event.type) {
+	case Common::EVENT_LBUTTONDOWN: {
+		const int16 x = event.mouse.x;
+		const int16 y = event.mouse.y;
+		if (_area.contains(x, y)) {
+			_pressed = true;
+			markDirty();
+		}
+		break;
+	}
+	case Common::EVENT_LBUTTONUP: {
+		if (_pressed) {
+			_pressed = false;
+			markDirty();
+			if (_callback) {
+				_callback->onButtonClicked(this);
+			}
+		}
+		break;
+	}
+	default:
+		break;
+	}
+}
+
+void ButtonWidget::draw(Graphics::ManagedSurface &surface) {
+	surface.blitFrom(_pressed ? _pressedSurface : _normalSurface, Common::Point(_area.left, _area.top));
+}
+
+}