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-rw-r--r--src/libs/themeengine/texture.cpp495
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diff --git a/src/libs/themeengine/texture.cpp b/src/libs/themeengine/texture.cpp
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+/* ============================================================
+ *
+ * This file is a part of digiKam project
+ * http://www.digikam.org
+ *
+ * Date : 2004-07-26
+ * Description : texture pixmap methods
+ *
+ * Copyright (C) 2004 by Renchi Raju <renchi@pooh.tam.uiuc.edu>
+ *
+ * Adapted from fluxbox: Texture/TextureRender
+ *
+ * Texture.cc for Fluxbox Window Manager
+ * Copyright (c) 2002-2003 Henrik Kinnunen <fluxbox@users.sourceforge.net>
+ *
+ * from Image.cc for Blackbox - an X11 Window manager
+ * Copyright (c) 1997 - 2000 Brad Hughes (bhughes@tcac.net)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *
+ * ============================================================ */
+
+// C++ includes.
+
+#include <cstring>
+#include <cstdio>
+
+// TQt includes.
+
+#include <tqpainter.h>
+#include <tqimage.h>
+#include <tqpixmap.h>
+
+// Local includes.
+
+#include "theme.h"
+#include "texture.h"
+
+namespace Digikam
+{
+
+class TexturePriv
+{
+public:
+
+ TexturePriv()
+ {
+ red = 0;
+ green = 0;
+ blue = 0;
+ }
+
+ bool border;
+
+ unsigned char *red;
+ unsigned char *green;
+ unsigned char *blue;
+
+ int width;
+ int height;
+
+ TQPixmap pixmap;
+
+ TQColor color0;
+ TQColor color1;
+ TQColor borderColor;
+
+ Theme::Bevel bevel;
+ Theme::Gradient gradient;
+};
+
+Texture::Texture(int w, int h, const TQColor& from, const TQColor& to,
+ Theme::Bevel bevel, Theme::Gradient gradient,
+ bool border, const TQColor& borderColor)
+{
+ d = new TexturePriv;
+
+ d->bevel = bevel;
+ d->gradient = gradient;
+ d->border = border;
+ d->borderColor = borderColor;
+
+ if (!border)
+ {
+ d->width = w;
+ d->height = h;
+ }
+ else
+ {
+ d->width = w-2;
+ d->height = h-2;
+ }
+
+ if (d->width <= 0 || d->height <= 0)
+ return;
+
+ if (bevel & Theme::SUNKEN)
+ {
+ d->color0 = to;
+ d->color1 = from;
+ }
+ else
+ {
+ d->color0 = from;
+ d->color1 = to;
+ }
+
+ if (gradient == Theme::SOLID)
+ {
+ doSolid();
+ }
+ else
+ {
+ d->red = new unsigned char[w*h];
+ d->green = new unsigned char[w*h];
+ d->blue = new unsigned char[w*h];
+
+ if (gradient == Theme::HORIZONTAL)
+ doHgradient();
+ else if (gradient == Theme::VERTICAL)
+ doVgradient();
+ else if (gradient == Theme::DIAGONAL)
+ doDgradient();
+
+ if (bevel & Theme::RAISED || bevel & Theme::SUNKEN)
+ doBevel();
+
+ buildImage();
+ }
+}
+
+Texture::~Texture()
+{
+ if (d->red)
+ delete [] d->red;
+ if (d->green)
+ delete [] d->green;
+ if (d->blue)
+ delete [] d->blue;
+
+ delete d;
+}
+
+TQPixmap Texture::renderPixmap() const
+{
+ if (d->width <= 0 || d->height <= 0)
+ return TQPixmap();
+
+ if (!d->border)
+ return d->pixmap;
+
+ TQPixmap pix(d->width+2, d->height+2);
+ bitBlt(&pix, 1, 1, &d->pixmap, 0, 0);
+ TQPainter p(&pix);
+ p.setPen(d->borderColor);
+ p.drawRect(0, 0, d->width+2, d->height+2);
+ p.end();
+
+ return pix;
+}
+
+void Texture::doSolid()
+{
+ d->pixmap.resize(d->width, d->height);
+ TQPainter p(&d->pixmap);
+ p.fillRect(0, 0, d->width, d->height, d->color0);
+ if (d->bevel == Theme::RAISED)
+ {
+ p.setPen(d->color0.light(120));
+ p.drawLine(0, 0, d->width-1, 0); // top
+ p.drawLine(0, 0, 0, d->height-1); // left
+ p.setPen(d->color0.dark(120));
+ p.drawLine(0, d->height-1, d->width-1, d->height-1); // bottom
+ p.drawLine(d->width-1, 0, d->width-1, d->height-1); // right
+ }
+ else if (d->bevel == Theme::SUNKEN)
+ {
+ p.setPen(d->color0.dark(120));
+ p.drawLine(0, 0, d->width-1, 0); // top
+ p.drawLine(0, 0, 0, d->height-1); // left
+ p.setPen(d->color0.light(120));
+ p.drawLine(0, d->height-1, d->width-1, d->height-1); // bottom
+ p.drawLine(d->width-1, 0, d->width-1, d->height-1); // right
+ }
+ p.end();
+}
+
+void Texture::doHgradient()
+{
+ float drx, dgx, dbx,
+ xr = (float) d->color0.red(),
+ xg = (float) d->color0.green(),
+ xb = (float) d->color0.blue();
+ unsigned char *pr = d->red, *pg = d->green, *pb = d->blue;
+
+ int x, y;
+
+ drx = (float) (d->color1.red() - d->color0.red());
+ dgx = (float) (d->color1.green() - d->color0.green());
+ dbx = (float) (d->color1.blue() - d->color0.blue());
+
+ drx /= d->width;
+ dgx /= d->width;
+ dbx /= d->width;
+
+ for (x = 0; x < d->width; x++)
+ {
+ *(pr++) = (unsigned char) (xr);
+ *(pg++) = (unsigned char) (xg);
+ *(pb++) = (unsigned char) (xb);
+
+ xr += drx;
+ xg += dgx;
+ xb += dbx;
+ }
+
+ for (y = 1; y < d->height; y++, pr += d->width, pg += d->width, pb += d->width)
+ {
+ memcpy(pr, d->red, d->width);
+ memcpy(pg, d->green, d->width);
+ memcpy(pb, d->blue, d->width);
+ }
+}
+
+void Texture::doVgradient()
+{
+ float dry, dgy, dby,
+ yr = (float) d->color0.red(),
+ yg = (float) d->color0.green(),
+ yb = (float) d->color0.blue();
+
+ dry = (float) (d->color1.red() - d->color0.red());
+ dgy = (float) (d->color1.green() - d->color0.green());
+ dby = (float) (d->color1.blue() - d->color0.blue());
+
+ dry /= d->height;
+ dgy /= d->height;
+ dby /= d->height;
+
+ unsigned char *pr = d->red, *pg = d->green, *pb = d->blue;
+ int y;
+
+ for (y = 0; y < d->height; y++, pr += d->width, pg += d->width, pb += d->width) {
+ memset(pr, (unsigned char) yr, d->width);
+ memset(pg, (unsigned char) yg, d->width);
+ memset(pb, (unsigned char) yb, d->width);
+
+ yr += dry;
+ yg += dgy;
+ yb += dby;
+ }
+}
+
+void Texture::doDgradient()
+{
+ unsigned int* xtable = new unsigned int[d->width*3];
+ unsigned int* ytable = new unsigned int[d->height*3];
+
+ float drx, dgx, dbx, dry, dgy, dby, yr = 0.0, yg = 0.0, yb = 0.0,
+ xr = (float) d->color0.red(),
+ xg = (float) d->color0.green(),
+ xb = (float) d->color0.blue();
+ unsigned char *pr = d->red, *pg = d->green, *pb = d->blue;
+ unsigned int w = d->width * 2, h = d->height * 2;
+ unsigned int *xt = xtable;
+ unsigned int *yt = ytable;
+
+ int x, y;
+
+ dry = drx = (float) (d->color1.red() - d->color0.red());
+ dgy = dgx = (float) (d->color1.green() - d->color0.green());
+ dby = dbx = (float) (d->color1.blue() - d->color0.blue());
+
+ // Create X table
+ drx /= w;
+ dgx /= w;
+ dbx /= w;
+
+ for (x = 0; x < d->width; x++)
+ {
+ *(xt++) = (unsigned char) (xr);
+ *(xt++) = (unsigned char) (xg);
+ *(xt++) = (unsigned char) (xb);
+
+ xr += drx;
+ xg += dgx;
+ xb += dbx;
+ }
+
+ // Create Y table
+ dry /= h;
+ dgy /= h;
+ dby /= h;
+
+ for (y = 0; y < d->height; y++)
+ {
+ *(yt++) = ((unsigned char) yr);
+ *(yt++) = ((unsigned char) yg);
+ *(yt++) = ((unsigned char) yb);
+
+ yr += dry;
+ yg += dgy;
+ yb += dby;
+ }
+
+ // Combine tables to create gradient
+
+ for (yt = ytable, y = 0; y < d->height; y++, yt += 3)
+ {
+ for (xt = xtable, x = 0; x < d->width; x++)
+ {
+ *(pr++) = *(xt++) + *(yt);
+ *(pg++) = *(xt++) + *(yt + 1);
+ *(pb++) = *(xt++) + *(yt + 2);
+ }
+ }
+
+ delete [] xtable;
+ delete [] ytable;
+}
+
+void Texture::doBevel()
+{
+ unsigned char *pr = d->red, *pg = d->green, *pb = d->blue;
+
+ unsigned char r, g, b, rr ,gg ,bb;
+ unsigned int w = d->width, h = d->height - 1, wh = w * h;
+
+ while (--w)
+ {
+ r = *pr;
+ rr = r + (r >> 1);
+ if (rr < r) rr = ~0;
+ g = *pg;
+ gg = g + (g >> 1);
+ if (gg < g) gg = ~0;
+ b = *pb;
+ bb = b + (b >> 1);
+ if (bb < b) bb = ~0;
+
+ *pr = rr;
+ *pg = gg;
+ *pb = bb;
+
+ r = *(pr + wh);
+ rr = (r >> 2) + (r >> 1);
+ if (rr > r) rr = 0;
+ g = *(pg + wh);
+ gg = (g >> 2) + (g >> 1);
+ if (gg > g) gg = 0;
+ b = *(pb + wh);
+ bb = (b >> 2) + (b >> 1);
+ if (bb > b) bb = 0;
+
+ *((pr++) + wh) = rr;
+ *((pg++) + wh) = gg;
+ *((pb++) + wh) = bb;
+ }
+
+ r = *pr;
+ rr = r + (r >> 1);
+ if (rr < r) rr = ~0;
+ g = *pg;
+ gg = g + (g >> 1);
+ if (gg < g) gg = ~0;
+ b = *pb;
+ bb = b + (b >> 1);
+ if (bb < b) bb = ~0;
+
+ *pr = rr;
+ *pg = gg;
+ *pb = bb;
+
+ r = *(pr + wh);
+ rr = (r >> 2) + (r >> 1);
+ if (rr > r) rr = 0;
+ g = *(pg + wh);
+ gg = (g >> 2) + (g >> 1);
+ if (gg > g) gg = 0;
+ b = *(pb + wh);
+ bb = (b >> 2) + (b >> 1);
+ if (bb > b) bb = 0;
+
+ *(pr + wh) = rr;
+ *(pg + wh) = gg;
+ *(pb + wh) = bb;
+
+ pr = d->red + d->width;
+ pg = d->green + d->width;
+ pb = d->blue + d->width;
+
+ while (--h)
+ {
+ r = *pr;
+ rr = r + (r >> 1);
+ if (rr < r) rr = ~0;
+ g = *pg;
+ gg = g + (g >> 1);
+ if (gg < g) gg = ~0;
+ b = *pb;
+ bb = b + (b >> 1);
+ if (bb < b) bb = ~0;
+
+ *pr = rr;
+ *pg = gg;
+ *pb = bb;
+
+ pr += d->width - 1;
+ pg += d->width - 1;
+ pb += d->width - 1;
+
+ r = *pr;
+ rr = (r >> 2) + (r >> 1);
+ if (rr > r) rr = 0;
+ g = *pg;
+ gg = (g >> 2) + (g >> 1);
+ if (gg > g) gg = 0;
+ b = *pb;
+ bb = (b >> 2) + (b >> 1);
+ if (bb > b) bb = 0;
+
+ *(pr++) = rr;
+ *(pg++) = gg;
+ *(pb++) = bb;
+ }
+
+ r = *pr;
+ rr = r + (r >> 1);
+ if (rr < r) rr = ~0;
+ g = *pg;
+ gg = g + (g >> 1);
+ if (gg < g) gg = ~0;
+ b = *pb;
+ bb = b + (b >> 1);
+ if (bb < b) bb = ~0;
+
+ *pr = rr;
+ *pg = gg;
+ *pb = bb;
+
+ pr += d->width - 1;
+ pg += d->width - 1;
+ pb += d->width - 1;
+
+ r = *pr;
+ rr = (r >> 2) + (r >> 1);
+ if (rr > r) rr = 0;
+ g = *pg;
+ gg = (g >> 2) + (g >> 1);
+ if (gg > g) gg = 0;
+ b = *pb;
+ bb = (b >> 2) + (b >> 1);
+ if (bb > b) bb = 0;
+
+ *pr = rr;
+ *pg = gg;
+ *pb = bb;
+}
+
+void Texture::buildImage()
+{
+ unsigned char *pr = d->red, *pg = d->green, *pb = d->blue;
+
+ TQImage image(d->width, d->height, 32);
+
+ unsigned int* bits = (unsigned int*) image.bits();
+
+ int p;
+ for (p =0; p < d->width*d->height; p++)
+ {
+ *bits = 0xff << 24 | *pr << 16 | *pg << 8 | *pb;
+ bits++;
+ pr++;
+ pg++;
+ pb++;
+ }
+
+ d->pixmap = TQPixmap(image);
+}
+
+} // NameSpace Digikam
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