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Diffstat (limited to 'src/kitemviews/kpixmapmodifier.cpp')
| -rw-r--r-- | src/kitemviews/kpixmapmodifier.cpp | 400 |
1 files changed, 0 insertions, 400 deletions
diff --git a/src/kitemviews/kpixmapmodifier.cpp b/src/kitemviews/kpixmapmodifier.cpp deleted file mode 100644 index 475f36a64..000000000 --- a/src/kitemviews/kpixmapmodifier.cpp +++ /dev/null @@ -1,400 +0,0 @@ -// krazy:excludeall=copyright (email of Maxim is missing) -/* - This file is a part of the KDE project - - Copyright © 2006 Zack Rusin <[email protected]> - Copyright © 2006-2007, 2008 Fredrik Höglund <[email protected]> - - The stack blur algorithm was invented by Mario Klingemann <[email protected]> - - This implementation is based on the version in Anti-Grain Geometry Version 2.4, - Copyright © 2002-2005 Maxim Shemanarev (http://www.antigrain.com) - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions - are met: - - 1. Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - 2. Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - - THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -*/ - -#include "kpixmapmodifier_p.h" - -#include <QImage> -#include <QPainter> -#include <QPixmap> -#include <QSize> - -#include <KDebug> - -#include <config-X11.h> // for HAVE_XRENDER -#if defined(Q_WS_X11) && defined(HAVE_XRENDER) -# include <QX11Info> -# include <X11/Xlib.h> -# include <X11/extensions/Xrender.h> -#endif - -static const quint32 stackBlur8Mul[255] = -{ - 512,512,456,512,328,456,335,512,405,328,271,456,388,335,292,512, - 454,405,364,328,298,271,496,456,420,388,360,335,312,292,273,512, - 482,454,428,405,383,364,345,328,312,298,284,271,259,496,475,456, - 437,420,404,388,374,360,347,335,323,312,302,292,282,273,265,512, - 497,482,468,454,441,428,417,405,394,383,373,364,354,345,337,328, - 320,312,305,298,291,284,278,271,265,259,507,496,485,475,465,456, - 446,437,428,420,412,404,396,388,381,374,367,360,354,347,341,335, - 329,323,318,312,307,302,297,292,287,282,278,273,269,265,261,512, - 505,497,489,482,475,468,461,454,447,441,435,428,422,417,411,405, - 399,394,389,383,378,373,368,364,359,354,350,345,341,337,332,328, - 324,320,316,312,309,305,301,298,294,291,287,284,281,278,274,271, - 268,265,262,259,257,507,501,496,491,485,480,475,470,465,460,456, - 451,446,442,437,433,428,424,420,416,412,408,404,400,396,392,388, - 385,381,377,374,370,367,363,360,357,354,350,347,344,341,338,335, - 332,329,326,323,320,318,315,312,310,307,304,302,299,297,294,292, - 289,287,285,282,280,278,275,273,271,269,267,265,263,261,259 -}; - -static const quint32 stackBlur8Shr[255] = -{ - 9, 11, 12, 13, 13, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 17, - 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 18, 19, - 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 20, 20, 20, - 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 21, - 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, - 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, - 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, - 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 23, - 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, - 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, - 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, - 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, - 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, - 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, - 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, - 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24 -}; - -static void blurHorizontal(QImage& image, unsigned int* stack, int div, int radius) -{ - int stackindex; - int stackstart; - - quint32 * const pixels = reinterpret_cast<quint32 *>(image.bits()); - quint32 pixel; - - int w = image.width(); - int h = image.height(); - int wm = w - 1; - - unsigned int mulSum = stackBlur8Mul[radius]; - unsigned int shrSum = stackBlur8Shr[radius]; - - unsigned int sum, sumIn, sumOut; - - for (int y = 0; y < h; y++) { - sum = 0; - sumIn = 0; - sumOut = 0; - - const int yw = y * w; - pixel = pixels[yw]; - for (int i = 0; i <= radius; i++) { - stack[i] = qAlpha(pixel); - - sum += stack[i] * (i + 1); - sumOut += stack[i]; - } - - for (int i = 1; i <= radius; i++) { - pixel = pixels[yw + qMin(i, wm)]; - - unsigned int* stackpix = &stack[i + radius]; - *stackpix = qAlpha(pixel); - - sum += *stackpix * (radius + 1 - i); - sumIn += *stackpix; - } - - stackindex = radius; - for (int x = 0, i = yw; x < w; x++) { - pixels[i++] = (((sum * mulSum) >> shrSum) << 24) & 0xff000000; - - sum -= sumOut; - - stackstart = stackindex + div - radius; - if (stackstart >= div) { - stackstart -= div; - } - - unsigned int* stackpix = &stack[stackstart]; - - sumOut -= *stackpix; - - pixel = pixels[yw + qMin(x + radius + 1, wm)]; - - *stackpix = qAlpha(pixel); - - sumIn += *stackpix; - sum += sumIn; - - if (++stackindex >= div) { - stackindex = 0; - } - - stackpix = &stack[stackindex]; - - sumOut += *stackpix; - sumIn -= *stackpix; - } - } -} - -static void blurVertical(QImage& image, unsigned int* stack, int div, int radius) -{ - int stackindex; - int stackstart; - - quint32 * const pixels = reinterpret_cast<quint32 *>(image.bits()); - quint32 pixel; - - int w = image.width(); - int h = image.height(); - int hm = h - 1; - - int mul_sum = stackBlur8Mul[radius]; - int shr_sum = stackBlur8Shr[radius]; - - unsigned int sum, sumIn, sumOut; - - for (int x = 0; x < w; x++) { - sum = 0; - sumIn = 0; - sumOut = 0; - - pixel = pixels[x]; - for (int i = 0; i <= radius; i++) { - stack[i] = qAlpha(pixel); - - sum += stack[i] * (i + 1); - sumOut += stack[i]; - } - - for (int i = 1; i <= radius; i++) { - pixel = pixels[qMin(i, hm) * w + x]; - - unsigned int* stackpix = &stack[i + radius]; - *stackpix = qAlpha(pixel); - - sum += *stackpix * (radius + 1 - i); - sumIn += *stackpix; - } - - stackindex = radius; - for (int y = 0, i = x; y < h; y++, i += w) { - pixels[i] = (((sum * mul_sum) >> shr_sum) << 24) & 0xff000000; - - sum -= sumOut; - - stackstart = stackindex + div - radius; - if (stackstart >= div) - stackstart -= div; - - unsigned int* stackpix = &stack[stackstart]; - - sumOut -= *stackpix; - - pixel = pixels[qMin(y + radius + 1, hm) * w + x]; - - *stackpix = qAlpha(pixel); - - sumIn += *stackpix; - sum += sumIn; - - if (++stackindex >= div) { - stackindex = 0; - } - - stackpix = &stack[stackindex]; - - sumOut += *stackpix; - sumIn -= *stackpix; - } - } -} - -static void stackBlur(QImage& image, float radius) -{ - radius = qRound(radius); - - int div = int(radius * 2) + 1; - unsigned int* stack = new unsigned int[div]; - - blurHorizontal(image, stack, div, radius); - blurVertical(image, stack, div, radius); - - delete [] stack; -} - -static void shadowBlur(QImage& image, float radius, const QColor& color) -{ - if (radius < 0) { - return; - } - - if (radius > 0) { - stackBlur(image, radius); - } - - // Correct the color and opacity of the shadow - QPainter p(&image); - p.setCompositionMode(QPainter::CompositionMode_SourceIn); - p.fillRect(image.rect(), color); -} - -namespace { - /** Helper class for drawing frames for KPixmapModifier::applyFrame(). */ - class TileSet - { - public: - enum { LeftMargin = 3, TopMargin = 2, RightMargin = 3, BottomMargin = 4 }; - - enum Tile { TopLeftCorner = 0, TopSide, TopRightCorner, LeftSide, - RightSide, BottomLeftCorner, BottomSide, BottomRightCorner, - NumTiles }; - - TileSet() - { - QImage image(8 * 3, 8 * 3, QImage::Format_ARGB32_Premultiplied); - - QPainter p(&image); - p.setCompositionMode(QPainter::CompositionMode_Source); - p.fillRect(image.rect(), Qt::transparent); - p.fillRect(image.rect().adjusted(3, 3, -3, -3), Qt::black); - p.end(); - - shadowBlur(image, 3, Qt::black); - - QPixmap pixmap = QPixmap::fromImage(image); - m_tiles[TopLeftCorner] = pixmap.copy(0, 0, 8, 8); - m_tiles[TopSide] = pixmap.copy(8, 0, 8, 8); - m_tiles[TopRightCorner] = pixmap.copy(16, 0, 8, 8); - m_tiles[LeftSide] = pixmap.copy(0, 8, 8, 8); - m_tiles[RightSide] = pixmap.copy(16, 8, 8, 8); - m_tiles[BottomLeftCorner] = pixmap.copy(0, 16, 8, 8); - m_tiles[BottomSide] = pixmap.copy(8, 16, 8, 8); - m_tiles[BottomRightCorner] = pixmap.copy(16, 16, 8, 8); - } - - void paint(QPainter* p, const QRect& r) - { - p->drawPixmap(r.topLeft(), m_tiles[TopLeftCorner]); - if (r.width() - 16 > 0) { - p->drawTiledPixmap(r.x() + 8, r.y(), r.width() - 16, 8, m_tiles[TopSide]); - } - p->drawPixmap(r.right() - 8 + 1, r.y(), m_tiles[TopRightCorner]); - if (r.height() - 16 > 0) { - p->drawTiledPixmap(r.x(), r.y() + 8, 8, r.height() - 16, m_tiles[LeftSide]); - p->drawTiledPixmap(r.right() - 8 + 1, r.y() + 8, 8, r.height() - 16, m_tiles[RightSide]); - } - p->drawPixmap(r.x(), r.bottom() - 8 + 1, m_tiles[BottomLeftCorner]); - if (r.width() - 16 > 0) { - p->drawTiledPixmap(r.x() + 8, r.bottom() - 8 + 1, r.width() - 16, 8, m_tiles[BottomSide]); - } - p->drawPixmap(r.right() - 8 + 1, r.bottom() - 8 + 1, m_tiles[BottomRightCorner]); - - const QRect contentRect = r.adjusted(LeftMargin + 1, TopMargin + 1, - -(RightMargin + 1), -(BottomMargin + 1)); - p->fillRect(contentRect, Qt::transparent); - } - - QPixmap m_tiles[NumTiles]; - }; -} - -void KPixmapModifier::scale(QPixmap& pixmap, const QSize& scaledSize) -{ - if (scaledSize.isEmpty()) { - pixmap = QPixmap(); - return; - } - -#if defined(Q_WS_X11) && defined(HAVE_XRENDER) - // Assume that the texture size limit is 2048x2048 - if ((pixmap.width() <= 2048) && (pixmap.height() <= 2048) && pixmap.x11PictureHandle()) { - const QPixmap unscaledPixmap = pixmap.copy(); // Make a deep copy for XRender - QSize scaledPixmapSize = pixmap.size(); - scaledPixmapSize.scale(scaledSize, Qt::KeepAspectRatio); - - const qreal factor = scaledPixmapSize.width() / qreal(unscaledPixmap.width()); - - XTransform xform = {{ - { XDoubleToFixed(1 / factor), 0, 0 }, - { 0, XDoubleToFixed(1 / factor), 0 }, - { 0, 0, XDoubleToFixed(1) } - }}; - - QPixmap scaledPixmap(scaledPixmapSize); - scaledPixmap.fill(Qt::transparent); - - Display* dpy = QX11Info::display(); - - XRenderPictureAttributes attr; - attr.repeat = RepeatPad; - XRenderChangePicture(dpy, unscaledPixmap.x11PictureHandle(), CPRepeat, &attr); - - XRenderSetPictureFilter(dpy, unscaledPixmap.x11PictureHandle(), FilterBilinear, 0, 0); - XRenderSetPictureTransform(dpy, unscaledPixmap.x11PictureHandle(), &xform); - XRenderComposite(dpy, PictOpOver, unscaledPixmap.x11PictureHandle(), None, scaledPixmap.x11PictureHandle(), - 0, 0, 0, 0, 0, 0, scaledPixmap.width(), scaledPixmap.height()); - pixmap = scaledPixmap; - } else { - pixmap = pixmap.scaled(scaledSize, Qt::KeepAspectRatio, Qt::SmoothTransformation); - } -#else - pixmap = pixmap.scaled(scaledSize, Qt::KeepAspectRatio, Qt::SmoothTransformation); -#endif -} - -void KPixmapModifier::applyFrame(QPixmap& icon, const QSize& scaledSize) -{ - static TileSet tileSet; - - // Resize the icon to the maximum size minus the space required for the frame - const QSize size(scaledSize.width() - TileSet::LeftMargin - TileSet::RightMargin, - scaledSize.height() - TileSet::TopMargin - TileSet::BottomMargin); - scale(icon, size); - - QPixmap framedIcon(icon.size().width() + TileSet::LeftMargin + TileSet::RightMargin, - icon.size().height() + TileSet::TopMargin + TileSet::BottomMargin); - framedIcon.fill(Qt::transparent); - - QPainter painter; - painter.begin(&framedIcon); - painter.setCompositionMode(QPainter::CompositionMode_Source); - tileSet.paint(&painter, framedIcon.rect()); - painter.setCompositionMode(QPainter::CompositionMode_SourceOver); - painter.drawPixmap(TileSet::LeftMargin, TileSet::TopMargin, icon); - - icon = framedIcon; -} - -QSize KPixmapModifier::sizeInsideFrame(const QSize& frameSize) -{ - return QSize(frameSize.width() - TileSet::LeftMargin - TileSet::RightMargin, - frameSize.height() - TileSet::TopMargin - TileSet::BottomMargin); -} - |