PEGASUS: Add the SoundLevel class

2 files changed, 58 insertions, 0 deletions

diff --git a/engines/pegasus/elements.cpp b/engines/pegasus/elements.cpp
index bd3b4db2cb..905be501e3 100644
--- a/engines/pegasus/elements.cpp
+++ b/engines/pegasus/elements.cpp
@@ -524,4 +524,45 @@ void ScreenDimmer::draw(const Common::Rect &r) {
 #undef DRAW_PIXEL
 #undef SKIP_PIXEL
 
+SoundLevel::SoundLevel(const tDisplayElementID id) : DisplayElement(id) {
+	_soundLevel = 0;
+}
+
+void SoundLevel::incrementLevel() {
+	if (_soundLevel < 12) {
+		_soundLevel++;
+		triggerRedraw();
+	}
+}
+
+void SoundLevel::decrementLevel() {
+	if (_soundLevel > 0) {
+		_soundLevel--;
+		triggerRedraw();
+	}
+}
+
+uint16 SoundLevel::getSoundLevel() {
+	return CLIP<int>(_soundLevel * 22, 0, 256);
+}
+
+void SoundLevel::setSoundLevel(uint16 level) {
+	uint16 newLevel = (level + 21) / 22;
+
+	if (newLevel != _soundLevel) {
+		_soundLevel = newLevel;
+		triggerRedraw();
+	}
+}
+
+void SoundLevel::draw(const Common::Rect &r) {
+	Common::Rect levelRect(_bounds.right - (8 * (_soundLevel - 12)), _bounds.top, _bounds.right, _bounds.bottom);
+	levelRect = r.findIntersectingRect(levelRect);
+
+	if (!levelRect.isEmpty()) {
+		Graphics::Surface *screen = ((PegasusEngine *)g_engine)->_gfx->getWorkArea();
+		screen->fillRect(levelRect, g_system->getScreenFormat().RGBToColor(0, 0, 0));
+	}
+}
+
 } // End of namespace Pegasus
diff --git a/engines/pegasus/elements.h b/engines/pegasus/elements.h
index 84c390aa02..6e20e72201 100644
--- a/engines/pegasus/elements.h
+++ b/engines/pegasus/elements.h
@@ -232,6 +232,23 @@ public:
 	virtual void draw(const Common::Rect &);
 };
 
+class SoundLevel : public DisplayElement {
+public:
+	SoundLevel(const tDisplayElementID);
+	virtual ~SoundLevel() {}
+	
+	void incrementLevel();
+	void decrementLevel();
+	
+	uint16 getSoundLevel();
+	void setSoundLevel(uint16);
+	
+	void draw(const Common::Rect &);
+
+protected:
+	uint16 _soundLevel;
+};
+
 } // End of namespace Pegasus
 
 #endif