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-rw-r--r-- | sd/source/ui/slidesorter/view/SlsFramePainter.hxx | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/sd/source/ui/slidesorter/view/SlsFramePainter.hxx b/sd/source/ui/slidesorter/view/SlsFramePainter.hxx new file mode 100644 index 000000000..9398cb94e --- /dev/null +++ b/sd/source/ui/slidesorter/view/SlsFramePainter.hxx @@ -0,0 +1,109 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#pragma once + +#include <vcl/bitmapex.hxx> + +namespace sd::slidesorter::view { + +class FramePainter +{ +public: + explicit FramePainter (const BitmapEx& rBitmap); + ~FramePainter(); + + /** Paint a border around the given box by using a set of bitmaps for + the corners and sides. + */ + void PaintFrame (OutputDevice&rDevice, const ::tools::Rectangle& rBox) const; + + /** Special functionality that takes the color from the center + bitmap and replaces that color in all bitmaps by the given new + color. Alpha values are not modified. + The center bitmap is erased. + */ + void AdaptColor (const Color aNewColor); + +private: + /** Bitmap with offset that is used when the bitmap is painted. The bitmap + */ + class OffsetBitmap { + public: + BitmapEx maBitmap; + Point maOffset; + + /** Create one of the eight shadow bitmaps from one that combines + them all. This larger bitmap is expected to have dimension NxN + with N=1+2*M. Of this larger bitmap there are created four + corner bitmaps of size 2*M x 2*M and four side bitmaps of sizes + 1xM (top and bottom) and Mx1 (left and right). The corner + bitmaps have each one quadrant of size MxM that is painted under + the interior of the frame. + @param rBitmap + The larger bitmap of which the eight shadow bitmaps are cut + out from. + @param nHorizontalPosition + Valid values are -1 (left), 0 (center), and +1 (right). + @param nVerticalPosition + Valid values are -1 (top), 0 (center), and +1 (bottom). + */ + OffsetBitmap ( + const BitmapEx& rBitmap, + const sal_Int32 nHorizontalPosition, + const sal_Int32 nVerticalPosition); + + /** Use the given device to paint the bitmap at the location that is + the sum of the given anchor and the internal offset. + */ + void PaintCorner (OutputDevice& rDevice, const Point& rAnchor) const; + + /** Use the given device to paint the bitmap stretched between the + two given locations. Offsets of the adjacent corner bitmaps and + the offset of the side bitmap are used to determine the area + that is to be filled with the side bitmap. + */ + void PaintSide ( + OutputDevice& rDevice, + const Point& rAnchor1, + const Point& rAnchor2, + const OffsetBitmap& rCornerBitmap1, + const OffsetBitmap& rCornerBitmap2) const; + + /** Fill the given rectangle with the bitmap. + */ + void PaintCenter ( + OutputDevice& rDevice, + const ::tools::Rectangle& rBox) const; + }; + OffsetBitmap maTopLeft; + OffsetBitmap maTop; + OffsetBitmap maTopRight; + OffsetBitmap maLeft; + OffsetBitmap maRight; + OffsetBitmap maBottomLeft; + OffsetBitmap maBottom; + OffsetBitmap maBottomRight; + OffsetBitmap maCenter; + bool mbIsValid; +}; + +} // end of namespace sd::slidesorter::view + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |