Import irrlicht 1.8.4 release

source/Irrlicht/CGUIImage.cpp

@@ -0,0 +1,164 @@
+// Copyright (C) 2002-2012 Nikolaus Gebhardt
+// This file is part of the "Irrlicht Engine".
+// For conditions of distribution and use, see copyright notice in irrlicht.h
+
+#include "CGUIImage.h"
+#ifdef _IRR_COMPILE_WITH_GUI_
+
+#include "IGUISkin.h"
+#include "IGUIEnvironment.h"
+#include "IVideoDriver.h"
+
+namespace irr
+{
+namespace gui
+{
+
+
+//! constructor
+CGUIImage::CGUIImage(IGUIEnvironment* environment, IGUIElement* parent, s32 id, core::rect<s32> rectangle)
+: IGUIImage(environment, parent, id, rectangle), Texture(0), Color(255,255,255,255),
+	UseAlphaChannel(false), ScaleImage(false)
+{
+	#ifdef _DEBUG
+	setDebugName("CGUIImage");
+	#endif
+}
+
+
+//! destructor
+CGUIImage::~CGUIImage()
+{
+	if (Texture)
+		Texture->drop();
+}
+
+
+//! sets an image
+void CGUIImage::setImage(video::ITexture* image)
+{
+	if (image == Texture)
+		return;
+
+	if (Texture)
+		Texture->drop();
+
+	Texture = image;
+
+	if (Texture)
+		Texture->grab();
+}
+
+//! Gets the image texture
+video::ITexture* CGUIImage::getImage() const
+{
+	return Texture;
+}
+
+//! sets the color of the image
+void CGUIImage::setColor(video::SColor color)
+{
+	Color = color;
+}
+
+//! Gets the color of the image
+video::SColor CGUIImage::getColor() const
+{
+	return Color;
+}
+
+//! draws the element and its children
+void CGUIImage::draw()
+{
+	if (!IsVisible)
+		return;
+
+	IGUISkin* skin = Environment->getSkin();
+	video::IVideoDriver* driver = Environment->getVideoDriver();
+
+	if (Texture)
+	{
+		if (ScaleImage)
+		{
+			const video::SColor Colors[] = {Color,Color,Color,Color};
+
+			driver->draw2DImage(Texture, AbsoluteRect,
+				core::rect<s32>(core::position2d<s32>(0,0), core::dimension2di(Texture->getOriginalSize())),
+				&AbsoluteClippingRect, Colors, UseAlphaChannel);
+		}
+		else
+		{
+			driver->draw2DImage(Texture, AbsoluteRect.UpperLeftCorner,
+				core::rect<s32>(core::position2d<s32>(0,0), core::dimension2di(Texture->getOriginalSize())),
+				&AbsoluteClippingRect, Color, UseAlphaChannel);
+		}
+	}
+	else
+	{
+		skin->draw2DRectangle(this, skin->getColor(EGDC_3D_DARK_SHADOW), AbsoluteRect, &AbsoluteClippingRect);
+	}
+
+	IGUIElement::draw();
+}
+
+
+//! sets if the image should use its alpha channel to draw itself
+void CGUIImage::setUseAlphaChannel(bool use)
+{
+	UseAlphaChannel = use;
+}
+
+
+//! sets if the image should use its alpha channel to draw itself
+void CGUIImage::setScaleImage(bool scale)
+{
+	ScaleImage = scale;
+}
+
+
+//! Returns true if the image is scaled to fit, false if not
+bool CGUIImage::isImageScaled() const
+{
+	_IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
+	return ScaleImage;
+}
+
+//! Returns true if the image is using the alpha channel, false if not
+bool CGUIImage::isAlphaChannelUsed() const
+{
+	_IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
+	return UseAlphaChannel;
+}
+
+
+//! Writes attributes of the element.
+void CGUIImage::serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options=0) const
+{
+	IGUIImage::serializeAttributes(out,options);
+
+	out->addTexture	("Texture", Texture);
+	out->addBool	("UseAlphaChannel", UseAlphaChannel);
+	out->addColor	("Color", Color);
+	out->addBool	("ScaleImage", ScaleImage);
+
+}
+
+
+//! Reads attributes of the element
+void CGUIImage::deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options=0)
+{
+	IGUIImage::deserializeAttributes(in,options);
+
+	setImage(in->getAttributeAsTexture("Texture"));
+	setUseAlphaChannel(in->getAttributeAsBool("UseAlphaChannel"));
+	setColor(in->getAttributeAsColor("Color"));
+	setScaleImage(in->getAttributeAsBool("ScaleImage"));
+}
+
+
+} // end namespace gui
+} // end namespace irr
+
+
+#endif // _IRR_COMPILE_WITH_GUI_
+