Branch data     Line data    Source code

       1                 :            : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2                 :            : /*
       3                 :            :  * This file is part of the LibreOffice project.
       4                 :            :  *
       5                 :            :  * This Source Code Form is subject to the terms of the Mozilla Public
       6                 :            :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7                 :            :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8                 :            :  *
       9                 :            :  * This file incorporates work covered by the following license notice:
      10                 :            :  *
      11                 :            :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12                 :            :  *   contributor license agreements. See the NOTICE file distributed
      13                 :            :  *   with this work for additional information regarding copyright
      14                 :            :  *   ownership. The ASF licenses this file to you under the Apache
      15                 :            :  *   License, Version 2.0 (the "License"); you may not use this file
      16                 :            :  *   except in compliance with the License. You may obtain a copy of
      17                 :            :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18                 :            :  */
      19                 :            : 
      20                 :            : #ifndef SD_SLIDESORTER_VIEW_FRAME_PAINTER_HXX
      21                 :            : #define SD_SLIDESORTER_VIEW_FRAME_PAINTER_HXX
      22                 :            : 
      23                 :            : #include <vcl/bitmapex.hxx>
      24                 :            : 
      25                 :            : 
      26                 :            : namespace sd { namespace slidesorter { namespace view {
      27                 :            : 
      28                 :            : class FramePainter
      29                 :            : {
      30                 :            : public:
      31                 :            :     FramePainter (const BitmapEx& rBitmap);
      32                 :            :     ~FramePainter (void);
      33                 :            : 
      34                 :            :     /** Paint a border around the given box by using a set of bitmaps for
      35                 :            :         the corners and sides.
      36                 :            :     */
      37                 :            :     void PaintFrame (OutputDevice&rDevice, const Rectangle aBox) const;
      38                 :            : 
      39                 :            :     /** Special functionality that takes the color from the center
      40                 :            :         bitmap and replaces that color in all bitmaps by the given new
      41                 :            :         color.  Alpha values are not modified.
      42                 :            :         @param bClearCenterBitmap
      43                 :            :             When <TRUE/> then the center bitmap is erased.
      44                 :            :     */
      45                 :            :     void AdaptColor (const Color aNewColor, const bool bClearCenterBitmap);
      46                 :            : 
      47                 :            : private:
      48                 :            :     /** Bitmap with offset that is used when the bitmap is painted.  The bitmap
      49                 :            :     */
      50                 :       3510 :     class OffsetBitmap {
      51                 :            :     public:
      52                 :            :         BitmapEx maBitmap;
      53                 :            :         Point maOffset;
      54                 :            : 
      55                 :            :         /** Create one of the eight shadow bitmaps from one that combines
      56                 :            :             them all.  This larger bitmap is expected to have dimension NxN
      57                 :            :             with N=1+2*M.  Of this larger bitmap there are created four
      58                 :            :             corner bitmaps of size 2*M x 2*M and four side bitmaps of sizes
      59                 :            :             1xM (top and bottom) and Mx1 (left and right).  The corner
      60                 :            :             bitmaps have each one quadrant of size MxM that is painted under
      61                 :            :             the interior of the frame.
      62                 :            :             @param rBitmap
      63                 :            :                 The larger bitmap of which the eight shadow bitmaps are cut
      64                 :            :                 out from.
      65                 :            :             @param nHorizontalPosition
      66                 :            :                 Valid values are -1 (left), 0 (center), and +1 (right).
      67                 :            :             @param nVerticalPosition
      68                 :            :                 Valid values are -1 (top), 0 (center), and +1 (bottom).
      69                 :            :         */
      70                 :            :         OffsetBitmap (
      71                 :            :             const BitmapEx& rBitmap,
      72                 :            :             const sal_Int32 nHorizontalPosition,
      73                 :            :             const sal_Int32 nVerticalPosition);
      74                 :            : 
      75                 :            :         /** Use the given device to paint the bitmap at the location that is
      76                 :            :             the sum of the given anchor and the internal offset.
      77                 :            :         */
      78                 :            :         void PaintCorner (OutputDevice& rDevice, const Point& rAnchor) const;
      79                 :            : 
      80                 :            :         /** Use the given device to paint the bitmap stretched between the
      81                 :            :             two given locations.  Offsets of the adjacent corner bitmaps and
      82                 :            :             the offset of the side bitmap are used to determine the area
      83                 :            :             that is to be filled with the side bitmap.
      84                 :            :         */
      85                 :            :         void PaintSide (
      86                 :            :             OutputDevice& rDevice,
      87                 :            :             const Point& rAnchor1,
      88                 :            :             const Point& rAnchor2,
      89                 :            :             const OffsetBitmap& rCornerBitmap1,
      90                 :            :             const OffsetBitmap& rCornerBitmap2) const;
      91                 :            : 
      92                 :            :         /** Fill the given rectangle with the bitmap.
      93                 :            :         */
      94                 :            :         void PaintCenter (
      95                 :            :             OutputDevice& rDevice,
      96                 :            :             const Rectangle& rBox) const;
      97                 :            :     };
      98                 :            :     OffsetBitmap maTopLeft;
      99                 :            :     OffsetBitmap maTop;
     100                 :            :     OffsetBitmap maTopRight;
     101                 :            :     OffsetBitmap maLeft;
     102                 :            :     OffsetBitmap maRight;
     103                 :            :     OffsetBitmap maBottomLeft;
     104                 :            :     OffsetBitmap maBottom;
     105                 :            :     OffsetBitmap maBottomRight;
     106                 :            :     OffsetBitmap maCenter;
     107                 :            :     bool mbIsValid;
     108                 :            : };
     109                 :            : 
     110                 :            : 
     111                 :            : } } } // end of namespace sd::slidesorter::view
     112                 :            : 
     113                 :            : #endif
     114                 :            : 
     115                 :            : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */