167 lines
3.7 KiB
C++
167 lines
3.7 KiB
C++
// Copyright (C) 2002-2011 Nikolaus Gebhardt
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// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in irrlicht.h
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#include "CGUIImage.h"
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#ifdef _IRR_COMPILE_WITH_GUI_
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#include "IGUISkin.h"
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#include "IGUIEnvironment.h"
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#include "IVideoDriver.h"
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namespace irr
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{
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namespace gui
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{
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//! constructor
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CGUIImage::CGUIImage(IGUIEnvironment* environment, IGUIElement* parent, s32 id, core::rect<s32> rectangle)
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: IGUIImage(environment, parent, id, rectangle), Texture(0), Color(255,255,255,255),
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UseAlphaChannel(false), ScaleImage(false)
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{
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#ifdef _DEBUG
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setDebugName("CGUIImage");
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#endif
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}
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//! destructor
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CGUIImage::~CGUIImage()
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{
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if (Texture)
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Texture->drop();
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}
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//! sets an image
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void CGUIImage::setImage(video::ITexture* image)
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{
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if (image == Texture)
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return;
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if (Texture)
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Texture->drop();
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Texture = image;
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if (Texture)
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Texture->grab();
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}
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//! Gets the image texture
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video::ITexture* CGUIImage::getImage() const
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{
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return Texture;
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}
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//! sets the color of the image
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void CGUIImage::setColor(video::SColor color)
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{
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Color = color;
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}
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//! Gets the color of the image
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video::SColor CGUIImage::getColor() const
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{
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return Color;
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}
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//! draws the element and its children
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void CGUIImage::draw()
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{
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if (!IsVisible)
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return;
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IGUISkin* skin = Environment->getSkin();
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video::IVideoDriver* driver = Environment->getVideoDriver();
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core::rect<s32> rect = AbsoluteRect;
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if (Texture)
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{
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if (ScaleImage)
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{
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const video::SColor Colors[] = {Color,Color,Color,Color};
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driver->draw2DImage(Texture, AbsoluteRect,
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core::rect<s32>(core::position2d<s32>(0,0), core::dimension2di(Texture->getOriginalSize())),
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&AbsoluteClippingRect, Colors, UseAlphaChannel);
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}
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else
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{
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driver->draw2DImage(Texture, AbsoluteRect.UpperLeftCorner,
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core::rect<s32>(core::position2d<s32>(0,0), core::dimension2di(Texture->getOriginalSize())),
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&AbsoluteClippingRect, Color, UseAlphaChannel);
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}
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}
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else
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{
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skin->draw2DRectangle(this, skin->getColor(EGDC_3D_DARK_SHADOW), AbsoluteRect, &AbsoluteClippingRect);
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}
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IGUIElement::draw();
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}
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//! sets if the image should use its alpha channel to draw itself
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void CGUIImage::setUseAlphaChannel(bool use)
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{
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UseAlphaChannel = use;
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}
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//! sets if the image should use its alpha channel to draw itself
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void CGUIImage::setScaleImage(bool scale)
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{
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ScaleImage = scale;
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}
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//! Returns true if the image is scaled to fit, false if not
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bool CGUIImage::isImageScaled() const
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{
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_IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
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return ScaleImage;
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}
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//! Returns true if the image is using the alpha channel, false if not
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bool CGUIImage::isAlphaChannelUsed() const
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{
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_IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
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return UseAlphaChannel;
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}
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//! Writes attributes of the element.
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void CGUIImage::serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options=0) const
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{
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IGUIImage::serializeAttributes(out,options);
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out->addTexture ("Texture", Texture);
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out->addBool ("UseAlphaChannel", UseAlphaChannel);
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out->addColor ("Color", Color);
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out->addBool ("ScaleImage", ScaleImage);
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}
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//! Reads attributes of the element
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void CGUIImage::deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options=0)
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{
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IGUIImage::deserializeAttributes(in,options);
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setImage(in->getAttributeAsTexture("Texture"));
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setUseAlphaChannel(in->getAttributeAsBool("UseAlphaChannel"));
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setColor(in->getAttributeAsColor("Color"));
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setScaleImage(in->getAttributeAsBool("ScaleImage"));
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}
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} // end namespace gui
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} // end namespace irr
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#endif // _IRR_COMPILE_WITH_GUI_
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