gwenview/lib/paintutils.h

   1 /*
   2 Gwenview: an image viewer
   3 Copyright 2007 Aurélien Gâteau <aurelien.gateau@free.fr>
   4
   5 This program is free software; you can redistribute it and/or
   6 modify it under the terms of the GNU General Public License
   7 as published by the Free Software Foundation; either version 2
   8 of the License, or (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18
  19 */
  20 #ifndef PAINTUTILS_H
  21 #define PAINTUTILS_H
  22
  23 #include <lib/gwenviewlib_export.h>
  24
  25
  26 class QColor;
  27 class QPainterPath;
  28 class QPixmap;
  29 class QRect;
  30 class QRectF;
  31 class QSize;
  32
  33 namespace Gwenview {
  34
  35 /**
  36  * A collection of independent painting functions
  37  */
  38 namespace PaintUtils {
  39
  40 /**
  41  * Returns a rounded-corner version of @rect. Corner radius is @p radius.
  42  * (Copied from KFileItemDelegate)
  43  */
  44 GWENVIEWLIB_EXPORT QPainterPath roundedRectangle(const QRectF& rect, qreal radius);
  45
  46 /**
  47  * Generates a pixmap of size @p size, filled with @p color, whose borders have
  48  * been blurred by @p radius pixels.
  49  */
  50 GWENVIEWLIB_EXPORT QPixmap generateFuzzyRect(const QSize& size, const QColor& color, int radius);
  51
  52 /**
  53  * Returns a modified version of @p color, where hue, saturation and value have
  54  * been adjusted according to @p deltaH, @p deltaS and @p deltaV.
  55  */
  56 GWENVIEWLIB_EXPORT QColor adjustedHsv(const QColor& color, int deltaH, int deltaS, int deltaV);
  57
  58 /**
  59  * Returns a modified version of @p color, where alpha has been set to @p
  60  * alphaF.
  61  */
  62 GWENVIEWLIB_EXPORT QColor alphaAdjustedF(const QColor& color, qreal alphaF);
  63
  64 /**
  65  * Returns the smallest QRect which contains @p rectF
  66  */
  67 GWENVIEWLIB_EXPORT QRect containingRect(const QRectF& rectF);
  68
  69 } // namespace
  70
  71 } // namespace
  72
  73 #endif /* PAINTUTILS_H */