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Fix: Buttons can now change the image several times and the pressed image will always be updated. Fixing Bug #197 by some anonymous coder.
Note that the way this works might change again soon (I just wanted to fix old version before rewriting it).


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https://sourceforge.net/p/irrlicht/patches/275/


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Add IGUIImages::setSourceRect/getSourceRect to allow using only parts of an image (can also be used to mirror and scroll them).
Thx @Nalin and @StarSonata who both proposed patches for this in the past.


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Reduce a bunch of log messages in B3DLoader from ELL_INFORMATION to ELL_DEBUG (thx@ entity for telling).


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Ensure vector3df and all classes containing a vector3df are passed by reference instead of per value. Thanks @Danyal Zia for the patch (#280).
This is breaking the IAttributes interface - so anyone who derived from that will have to update his implementation. More changes in that interface probably coming later today.
The idea behind the patch is preparing the engine for SSE support.

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Fix SDL device compilation. VideoDriver is now always dropped after Scenemanager and FileSystem after those two to prevent memory-leaks in some situations.


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Fix c::b project obj folder names. Some static builds had used the shared folders (thx @ gerdb for reporting)


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- C::B project files work again on newer Linux-distributions which have cleaned up their dev-lib dependencies.


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triangle3d constructor and line3d::getIntersectionWithSphere passing vectors now as const-ref instead of per value. Thx @nemo for reporting.


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Fix a bug in new meshtextureloader - don't set old TEXTURE_PATHS always but only if people still use those parameters or we overwrite the new way to set paths.


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Remove the Dev-C++ project file. We're telling people in the forum since years now that we don't support it whenever some unlucky soul tries still using it. 


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Improve documentation for new texture-loader interface and mention that the old solutions are deprecated.


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Add ITexture::getSource which can be used to check where the last IVideoDriver::getTexture call found the texture. Thx @Bobbo for helping me to find a better enum name ;-)


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Previously each meshloader had implemented texture loading independendly. This had caused a lot of redundant codes and behaviour 
between different meshloaders was often different. So we have now one common interface which should be used by all meshloaders.
This also allows deprecating TEXTURE_PATH attributes as those paths can now be set by that interface and for all meshloaders using it.
I have replaced the codes for the 3DS, B3D, CSM, Collada, DMF, LMTS, LWO, MY3D, OBJ, OCT, Ogre, SMF and X meshloader.
Not changed (just using old code) are: MS3D (I forgot that one), CIrrMeshFileLoader (haven't figured out how it works yet).
STL and PLY both don't load textures and need no changes.
MDL, MD3, MD2 and BSP all work a little different (the textureloading there isn't implemented inside the meshloaders). Those could maybe still be adapted.
Stuff still needs a lot more test (unfortunately I don't have test-models for most formats...), but wanted to check it in already to get some feedback.


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Prevent some precision troubles on some compilers when working with vector3d<s32>. Thx @AReichl for bugfix.


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- CGUICheckBox no longer gives up focus on EMIE_LMOUSE_LEFT_UP (thx @Demre for reporting http://irrlicht.sourceforge.net/forum/viewtopic.php?f=1&t=49598)


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Bugfix: IGUIElement::addChild now prevents setting an element as it's own child (fixes for example a crash in the GUI-editor).


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Note about implementation: There is already IVideoDriver::getScreenSize() which is more or less the getter for this function. But I don't think it belongs in IVideoDriver and also this function is about the window and not the screen obviously. So might make sense adding getWindowSize and deprecating getScreenSize, but that needs further changes in GUI. For now I just added a comment and let the rest be as it was.

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A few minor changes to the GUIEditor:
- Displays the window-size
- Update (rarely) when Window now active
- Sleep after drawing to prevent update-delays on resizing
- Driver choice now only for available drivers
- Kick out the "Tools" tab as it's unused so far and just irritating users.


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- Makefile for the new IrrFontTool links now correctly to libfontconfig


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