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65 lines
2.5 KiB
C++
65 lines
2.5 KiB
C++
/*
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* Copyright (c) Contributors to the Open 3D Engine Project.
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* For complete copyright and license terms please see the LICENSE at the root of this distribution.
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*
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* SPDX-License-Identifier: Apache-2.0 OR MIT
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*
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*/
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// Description : Utilitarian classes for double buffer GDI rendering and 32bit bitmaps
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#ifndef CRYINCLUDE_EDITOR_UTIL_GDIUTIL_H
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#define CRYINCLUDE_EDITOR_UTIL_GDIUTIL_H
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#pragma once
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//! function used to compute thumbs per row and spacing, used in asset browser and other tools where thumb layout is needed and maybe GDI canvas used
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//! \param aContainerWidth the thumbs' container width
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//! \param aThumbWidth the thumb image width
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//! \param aMargin the thumb default minimum horizontal margin
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//! \param aThumbCount the thumb count
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//! \param rThumbsPerRow returned thumb count per single row
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//! \param rNewMargin returned new computed margin between thumbs
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//! \note The margin between thumbs will grow/shrink dynamically to keep up with the thumb count per row
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bool ComputeThumbsLayoutInfo(float aContainerWidth, float aThumbWidth, float aMargin, UINT aThumbCount, UINT& rThumbsPerRow, float& rNewMargin);
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QColor ScaleColor(const QColor& coor, float aScale);
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//! This class loads alpha-channel bitmaps and holds a DC for use with AlphaBlend function
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class CRYEDIT_API CAlphaBitmap
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{
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public:
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CAlphaBitmap();
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~CAlphaBitmap();
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//! creates the bitmap from raw 32bpp data
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//! \param pData the 32bpp raw image data, RGBA, can be NULL and it would create just an empty bitmap
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//! \param aWidth the bitmap width
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//! \param aHeight the bitmap height
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bool Create(void* pData, UINT aWidth, UINT aHeight, bool bVerticalFlip = false, bool bPremultiplyAlpha = false);
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//! \return the actual bitmap
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QImage& GetBitmap();
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//! free the bitmap and DC
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void Free();
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//! \return bitmap width
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UINT GetWidth();
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//! \return bitmap height
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UINT GetHeight();
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protected:
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QImage m_bmp;
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UINT m_width, m_height;
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};
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//! Fill a rectangle with a checkerboard pattern.
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//! \param pGraphics The Graphics object used for drawing
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//! \param rRect The rectangle to be filled
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//! \param checkDiameter the diameter of the check squares
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//! \param aColor1 the color that starts in the top left corner check square
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//! \param aColor2 the second color used for check squares
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void CheckerboardFillRect(QPainter* pGraphics, const QRect& rRect, int checkDiameter, const QColor& aColor1, const QColor& aColor2);
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#endif // CRYINCLUDE_EDITOR_UTIL_GDIUTIL_H
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