1 files changed, 160 insertions, 29 deletions

diff --git a/gui/widget.cpp b/gui/widget.cpp
index 73d055527c..898d5671c6 100644
--- a/gui/widget.cpp
+++ b/gui/widget.cpp
@@ -53,6 +53,31 @@ void Widget::init() {
 	_boss->_firstWidget = this;
 }
 
+Common::Rect Widget::getBossClipRect() const {
+	int bx = _boss->getAbsX();
+	int by = _boss->getAbsY();
+	Common::Rect result = Common::Rect(bx, by, bx + _boss->getWidth(), by + _boss->getHeight());
+	bool needsClipping = false;
+
+	//check whether clipping area is inside the screen
+	if (result.left < 0 && (needsClipping = true))
+		warning("Widget <%s> has clipping area x < 0 (%d)", _name.c_str(), result.left);
+	if (result.left >= g_gui.getWidth() && (needsClipping = true))
+		warning("Widget <%s> has clipping area x > %d (%d)", _name.c_str(), g_gui.getWidth(), result.left);
+	if (result.right > g_gui.getWidth() && (needsClipping = true))
+		warning("Widget <%s> has clipping area x + w > %d (%d)", _name.c_str(), g_gui.getWidth(), result.right);
+	if (result.top < 0 && (needsClipping = true))
+		warning("Widget <%s> has clipping area y < 0 (%d)", _name.c_str(), result.top);
+	if (result.top >= g_gui.getHeight() && (needsClipping = true))
+		warning("Widget <%s> has clipping area y > %d (%d)", _name.c_str(), g_gui.getHeight(), result.top);
+	if (result.bottom > g_gui.getHeight() && (needsClipping = true))
+		warning("Widget <%s> has clipping area y + h > %d (%d)", _name.c_str(), g_gui.getHeight(), result.bottom);
+
+	if (needsClipping)
+		result.clip(g_gui.getWidth(), g_gui.getHeight());
+	return result;
+}
+
 Widget::~Widget() {
 	delete _next;
 	_next = 0;
@@ -99,7 +124,7 @@ void Widget::draw() {
 
 	// Draw border
 	if (_flags & WIDGET_BORDER) {
-		g_gui.theme()->drawWidgetBackground(Common::Rect(_x, _y, _x+_w, _y+_h), 0, ThemeEngine::kWidgetBackgroundBorder);
+		g_gui.theme()->drawWidgetBackgroundClip(Common::Rect(_x, _y, _x+_w, _y+_h), getBossClipRect(), 0, ThemeEngine::kWidgetBackgroundBorder);
 		_x += 4;
 		_y += 4;
 		_w -= 8;
@@ -131,7 +156,7 @@ void Widget::draw() {
 Widget *Widget::findWidgetInChain(Widget *w, int x, int y) {
 	while (w) {
 		// Stop as soon as we find a widget that contains the point (x,y)
-		if (x >= w->_x && x < w->_x + w->_w && y >= w->_y && y < w->_y + w->_h)
+		if (x >= w->_x && x < w->_x + w->_w && y >= w->_y && y < w->_y + w->getHeight())
 			break;
 		w = w->_next;
 	}
@@ -280,7 +305,10 @@ void StaticTextWidget::setAlign(Graphics::TextAlign align) {
 
 
 void StaticTextWidget::drawWidget() {
-	g_gui.theme()->drawText(Common::Rect(_x, _y, _x+_w, _y+_h), _label, _state, _align, ThemeEngine::kTextInversionNone, 0, true, _font);
+	g_gui.theme()->drawTextClip(
+		Common::Rect(_x, _y, _x+_w, _y+_h),	getBossClipRect(),
+		_label, _state, _align, ThemeEngine::kTextInversionNone, 0, true, _font
+	);
 }
 
 #pragma mark -
@@ -319,7 +347,10 @@ void ButtonWidget::handleMouseDown(int x, int y, int button, int clickCount) {
 }
 
 void ButtonWidget::drawWidget() {
-	g_gui.theme()->drawButton(Common::Rect(_x, _y, _x+_w, _y+_h), _label, _state, getFlags());
+	g_gui.theme()->drawButtonClip(
+		Common::Rect(_x, _y, _x + _w, _y + _h), getBossClipRect(),
+		_label, _state, getFlags()
+	);
 }
 
 void ButtonWidget::setLabel(const Common::String &label) {
@@ -367,25 +398,28 @@ void ButtonWidget::setUnpressedState() {
 
 PicButtonWidget::PicButtonWidget(GuiObject *boss, int x, int y, int w, int h, const char *tooltip, uint32 cmd, uint8 hotkey)
 	: ButtonWidget(boss, x, y, w, h, "", tooltip, cmd, hotkey),
-	  _gfx(), _alpha(256), _transparency(false) {
+	  _alpha(255), _transparency(false), _showButton(true), _isAlpha(false) {
 
 	setFlags(WIDGET_ENABLED/* | WIDGET_BORDER*/ | WIDGET_CLEARBG);
 	_type = kButtonWidget;
+	_mode = ThemeEngine::kAutoScaleNone;
 }
 
 PicButtonWidget::PicButtonWidget(GuiObject *boss, const Common::String &name, const char *tooltip, uint32 cmd, uint8 hotkey)
 	: ButtonWidget(boss, name, "", tooltip, cmd, hotkey),
-	  _gfx(), _alpha(256), _transparency(false) {
+	  _alpha(255), _transparency(false), _showButton(true), _isAlpha(false) {
 	setFlags(WIDGET_ENABLED/* | WIDGET_BORDER*/ | WIDGET_CLEARBG);
 	_type = kButtonWidget;
+	_mode = ThemeEngine::kAutoScaleNone;
 }
 
 PicButtonWidget::~PicButtonWidget() {
-	_gfx.free();
+	for (int i = 0; i < kPicButtonStateMax + 1; i++)
+		_gfx[i].free();
 }
 
-void PicButtonWidget::setGfx(const Graphics::Surface *gfx) {
-	_gfx.free();
+void PicButtonWidget::setGfx(const Graphics::Surface *gfx, int statenum) {
+	_gfx[statenum].free();
 
 	if (!gfx || !gfx->getPixels())
 		return;
@@ -401,10 +435,27 @@ void PicButtonWidget::setGfx(const Graphics::Surface *gfx) {
 		return;
 	}
 
-	_gfx.copyFrom(*gfx);
+	_gfx[statenum].copyFrom(*gfx);
 }
 
-void PicButtonWidget::setGfx(int w, int h, int r, int g, int b) {
+void PicButtonWidget::setAGfx(const Graphics::TransparentSurface *gfx, int statenum, ThemeEngine::AutoScaleMode mode) {
+	_agfx[statenum].free();
+
+	if (!gfx || !gfx->getPixels())
+		return;
+
+	if (gfx->format.bytesPerPixel == 1) {
+		warning("PicButtonWidget::setGfx got paletted surface passed");
+		return;
+	}
+
+	_agfx[statenum].copyFrom(*gfx);
+
+	_isAlpha = true;
+	_mode = mode;
+}
+
+void PicButtonWidget::setGfx(int w, int h, int r, int g, int b, int statenum) {
 	if (w == -1)
 		w = _w;
 	if (h == -1)
@@ -412,26 +463,69 @@ void PicButtonWidget::setGfx(int w, int h, int r, int g, int b) {
 
 	const Graphics::PixelFormat &requiredFormat = g_gui.theme()->getPixelFormat();
 
-	_gfx.free();
-	_gfx.create(w, h, requiredFormat);
-	_gfx.fillRect(Common::Rect(0, 0, w, h), _gfx.format.RGBToColor(r, g, b));
+	_gfx[statenum].free();
+	_gfx[statenum].create(w, h, requiredFormat);
+	_gfx[statenum].fillRect(Common::Rect(0, 0, w, h), _gfx[statenum].format.RGBToColor(r, g, b));
 }
 
 void PicButtonWidget::drawWidget() {
-	g_gui.theme()->drawButton(Common::Rect(_x, _y, _x+_w, _y+_h), "", _state, getFlags());
+	if (_showButton)
+		g_gui.theme()->drawButtonClip(Common::Rect(_x, _y, _x + _w, _y + _h), getBossClipRect(), "", _state, getFlags());
+
+	if (!_isAlpha) {
+		Graphics::Surface *gfx;
+
+		if (_state == ThemeEngine::kStateHighlight)
+			gfx = &_gfx[kPicButtonHighlight];
+		else if (_state == ThemeEngine::kStateDisabled)
+			gfx = &_gfx[kPicButtonStateDisabled];
+		else if (_state == ThemeEngine::kStatePressed)
+			gfx = &_gfx[kPicButtonStatePressed];
+		else
+			gfx = &_gfx[kPicButtonStateEnabled];
 
-	if (_gfx.getPixels()) {
+		if (!gfx->getPixels())
+			gfx = &_gfx[kPicButtonStateEnabled];
+
+		if (gfx->getPixels()) {
 		// Check whether the set up surface needs to be converted to the GUI
 		// color format.
-		const Graphics::PixelFormat &requiredFormat = g_gui.theme()->getPixelFormat();
-		if (_gfx.format != requiredFormat) {
-			_gfx.convertToInPlace(requiredFormat);
+			const Graphics::PixelFormat &requiredFormat = g_gui.theme()->getPixelFormat();
+			if (gfx->format != requiredFormat) {
+				gfx->convertToInPlace(requiredFormat);
+			}
+
+			const int x = _x + (_w - gfx->w) / 2;
+			const int y = _y + (_h - gfx->h) / 2;
+
+			g_gui.theme()->drawSurfaceClip(Common::Rect(x, y, x + gfx->w,  y + gfx->h), getBossClipRect(), *gfx, _state, _alpha, _transparency);
 		}
+	} else {
+		Graphics::TransparentSurface *gfx;
+
+		if (_state == ThemeEngine::kStateHighlight)
+			gfx = &_agfx[kPicButtonHighlight];
+		else if (_state == ThemeEngine::kStateDisabled)
+			gfx = &_agfx[kPicButtonStateDisabled];
+		else if (_state == ThemeEngine::kStatePressed)
+			gfx = &_agfx[kPicButtonStatePressed];
+		else
+			gfx = &_agfx[kPicButtonStateEnabled];
 
-		const int x = _x + (_w - _gfx.w) / 2;
-		const int y = _y + (_h - _gfx.h) / 2;
+		if (!gfx->getPixels())
+			gfx = &_agfx[kPicButtonStateEnabled];
+
+		if (gfx->getPixels()) {
+			if (_mode == GUI::ThemeEngine::kAutoScaleNone) {
+				const int x = _x + (_w - gfx->w) / 2;
+				const int y = _y + (_h - gfx->h) / 2;
 
-		g_gui.theme()->drawSurface(Common::Rect(x, y, x + _gfx.w,  y + _gfx.h), _gfx, _state, _alpha, _transparency);
+				g_gui.theme()->drawASurface(Common::Rect(x, y, x + gfx->w,  y + gfx->h), *gfx, _mode, _alpha);
+
+			} else {
+				g_gui.theme()->drawASurface(Common::Rect(_x, _y, _x + _w,  _y + _h), *gfx, _mode, _alpha);
+			}
+		}
 	}
 }
 
@@ -466,7 +560,7 @@ void CheckboxWidget::setState(bool state) {
 }
 
 void CheckboxWidget::drawWidget() {
-	g_gui.theme()->drawCheckbox(Common::Rect(_x, _y, _x+_w, _y+_h), _label, _state, Widget::_state);
+	g_gui.theme()->drawCheckboxClip(Common::Rect(_x, _y, _x+_w, _y+_h), getBossClipRect(), _label, _state, Widget::_state);
 }
 
 #pragma mark -
@@ -535,7 +629,7 @@ void RadiobuttonWidget::setState(bool state, bool setGroup) {
 }
 
 void RadiobuttonWidget::drawWidget() {
-	g_gui.theme()->drawRadiobutton(Common::Rect(_x, _y, _x+_w, _y+_h), _label, _state, Widget::_state);
+	g_gui.theme()->drawRadiobuttonClip(Common::Rect(_x, _y, _x+_w, _y+_h), getBossClipRect(), _label, _state, Widget::_state);
 }
 
 #pragma mark -
@@ -603,7 +697,7 @@ void SliderWidget::handleMouseWheel(int x, int y, int direction) {
 }
 
 void SliderWidget::drawWidget() {
-	g_gui.theme()->drawSlider(Common::Rect(_x, _y, _x + _w, _y + _h), valueToBarWidth(_value), _state);
+	g_gui.theme()->drawSliderClip(Common::Rect(_x, _y, _x + _w, _y + _h), getBossClipRect(), valueToBarWidth(_value), _state);
 }
 
 int SliderWidget::valueToBarWidth(int value) {
@@ -621,13 +715,13 @@ int SliderWidget::posToValue(int pos) {
 #pragma mark -
 
 GraphicsWidget::GraphicsWidget(GuiObject *boss, int x, int y, int w, int h, const char *tooltip)
-	: Widget(boss, x, y, w, h, tooltip), _gfx(), _alpha(256), _transparency(false) {
+	: Widget(boss, x, y, w, h, tooltip), _gfx(), _alpha(255), _transparency(false) {
 	setFlags(WIDGET_ENABLED | WIDGET_CLEARBG);
 	_type = kGraphicsWidget;
 }
 
 GraphicsWidget::GraphicsWidget(GuiObject *boss, const Common::String &name, const char *tooltip)
-	: Widget(boss, name, tooltip), _gfx(), _alpha(256), _transparency(false) {
+	: Widget(boss, name, tooltip), _gfx(), _alpha(255), _transparency(false) {
 	setFlags(WIDGET_ENABLED | WIDGET_CLEARBG);
 	_type = kGraphicsWidget;
 }
@@ -655,6 +749,26 @@ void GraphicsWidget::setGfx(const Graphics::Surface *gfx) {
 	_gfx.copyFrom(*gfx);
 }
 
+void GraphicsWidget::setAGfx(const Graphics::TransparentSurface *gfx, ThemeEngine::AutoScaleMode mode) {
+	_agfx.free();
+
+	if (!gfx || !gfx->getPixels())
+		return;
+
+	if (gfx->format.bytesPerPixel == 1) {
+		warning("GraphicsWidget::setGfx got paletted surface passed");
+		return;
+	}
+
+	if ((gfx->w > _w || gfx->h > _h) && mode == ThemeEngine::kAutoScaleNone) {
+		warning("GraphicsWidget has size %dx%d, but a surface with %dx%d is to be set", _w, _h, gfx->w, gfx->h);
+		return;
+	}
+
+	_agfx.copyFrom(*gfx);
+	_mode = mode;
+}
+
 void GraphicsWidget::setGfx(int w, int h, int r, int g, int b) {
 	if (w == -1)
 		w = _w;
@@ -680,7 +794,24 @@ void GraphicsWidget::drawWidget() {
 		const int x = _x + (_w - _gfx.w) / 2;
 		const int y = _y + (_h - _gfx.h) / 2;
 
-		g_gui.theme()->drawSurface(Common::Rect(x, y, x + _gfx.w,  y + _gfx.h), _gfx, _state, _alpha, _transparency);
+		g_gui.theme()->drawSurfaceClip(Common::Rect(x, y, x + _gfx.w,  y + _gfx.h), getBossClipRect(), _gfx, _state, _alpha, _transparency);
+	} else if (_agfx.getPixels()) {
+		// Check whether the set up surface needs to be converted to the GUI
+		// color format.
+		const Graphics::PixelFormat &requiredFormat = g_gui.theme()->getPixelFormat();
+		if (_agfx.format != requiredFormat) {
+			_agfx.convertToInPlace(requiredFormat);
+		}
+
+		if (_mode == GUI::ThemeEngine::kAutoScaleNone) {
+			const int x = _x + (_w - _agfx.w) / 2;
+			const int y = _y + (_h - _agfx.h) / 2;
+
+			g_gui.theme()->drawASurface(Common::Rect(x, y, x + _agfx.w,  y + _agfx.h), _agfx, _mode, _alpha);
+
+		} else {
+			g_gui.theme()->drawASurface(Common::Rect(_x, _y, _x + _w,  _y + _h), _agfx, _mode, _alpha);
+		}
 	}
 }
 
@@ -717,7 +848,7 @@ void ContainerWidget::removeWidget(Widget *widget) {
 }
 
 void ContainerWidget::drawWidget() {
-	g_gui.theme()->drawWidgetBackground(Common::Rect(_x, _y, _x + _w, _y + _h), 0, ThemeEngine::kWidgetBackgroundBorder);
+	g_gui.theme()->drawWidgetBackgroundClip(Common::Rect(_x, _y, _x + _w, _y + _h), getBossClipRect(), 0, ThemeEngine::kWidgetBackgroundBorder);
 }
 
 } // End of namespace GUI