/*
  RISC OS KWin client

  Copyright 2000
    Rik Hemsley <rik@kde.org>

  This program is free software; you can redistribute it and/or
  modify it under the terms of the GNU General Public
  License as published by the Free Software Foundation; either
  version 2 of the License, or (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; see the file COPYING.  If not, write to
  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  Boston, MA 02110-1301, USA.
*/

// for enable-final
#ifdef Bool
#undef Bool
#endif

#include <qimage.h>
#include <qpixmap.h>
#include <qpainter.h>
#include <q3ptrlist.h>
#include <kcommondecoration.h>
#include <kdecoration.h>

// #include <ksimpleconfig.h>

#include "Static.h"

namespace RiscOS
{

/* XPM */
static const char * const texture_xpm[] = {
"64 12 3 1",
" 	c None",
"a	c #000000",
"b	c #FFFFFF",
"   b           b         b     b   b b       b        a       b ",
" b       aa   b  aaa aaa     b   a   b   aab     bb           a ",
" b     b    a b    b   b             b       aa      b b   aa   ",
" b b     b     a         a b   b b b  aa  ab             ab     ",
"         b     b   b b       b                 b   b  ba        ",
" aaa aaa         aa       b          b b b   b           b      ",
"   b       b      bb a b     aa  b         a  a  aaa a     b    ",
" b         b b b b     a b       b       b         b           b",
"   b b       b              b  a a b  b  aa      b       baa    ",
"       a     b    a  bb  aa    bb aa aaa  b     aa a            ",
"   a a       aab       b  b   aa aab          a  b              ",
" b        a        b   b aaa  a      b      bb     b   b     b b"};

Static* Static::instance_ = NULL;

Static::Static()
{
   instance_ = this;
   _init();
}

Static::~Static()
{
   instance_ = NULL;
}

const QPixmap& Static::titleTextLeft(bool active) const
{
   return active ? aTitleTextLeft_ : iTitleTextLeft_;
}

const QPixmap& Static::titleTextRight(bool active) const
{
   return active ? aTitleTextRight_ : iTitleTextRight_;
}

const QPixmap& Static::resizeMidLeft(bool active) const
{
   return active ? aResizeMidLeft_ : iResizeMidLeft_;
}

const QPixmap& Static::resizeMidRight(bool active) const
{
   return active ? aResizeMidRight_ : iResizeMidRight_;
}

const QPixmap& Static::titleTextMid(bool active) const
{
   return active ? aTitleTextMid_ : iTitleTextMid_;
}

const QPixmap& Static::resizeMidMid(bool active) const
{
   return active ? aResizeMid_ : iResizeMid_;
}

const QPixmap& Static::resize(bool active) const
{
   return active ? aResize_ : iResize_;
}

int Static::animationStyle() const
{
   return animationStyle_;
}

int Static::titleHeight() const
{
   return titleHeight_;
}

int Static::resizeHeight() const
{
   return resizeHeight_;
}

void Static::_drawBorder(QPixmap &pix, int w, int h)
{
   // 0111111113
   // 1122222235
   // 12      46
   // 12      46
   // 12      46
   // 1344444476
   // 3566666667

   painter_.begin(&pix);
   painter_.translate(transx, transy);

   QColor c0 = down_ ? palette_[7] : palette_[0];
   QColor c1 = down_ ? palette_[6] : palette_[1];
   QColor c2 = down_ ? palette_[5] : palette_[2];
   QColor c3 = down_ ? palette_[4] : palette_[3];
   QColor c4 = down_ ? palette_[3] : palette_[4];
   QColor c5 = down_ ? palette_[2] : palette_[5];
   QColor c6 = down_ ? palette_[2] : palette_[6];
   QColor c7 = down_ ? palette_[1] : palette_[7];

   painter_.setPen(c0);
   painter_.drawPoint(0, 0);

   painter_.setPen(c1);
   painter_.drawPoint(1, 1);
   painter_.drawLine(1, 0, w - 1, 0);
   painter_.drawLine(0, 1, 0, h - 1);

   painter_.setPen(c2);
   painter_.drawLine(2, 1, w - 2, 1);
   painter_.drawLine(1, 2, 1, h - 2);

   painter_.setPen(c3);
   painter_.drawPoint(0, h);
   painter_.drawPoint(1, h - 1);
   painter_.drawPoint(w, 0);
   painter_.drawPoint(w - 1, 1);
   painter_.fillRect(2, 2, w - 2, h - 2, c3);

   painter_.setPen(c4);
   painter_.drawLine(2, h - 1, w - 2, h - 1);
   painter_.drawLine(w - 1, 2, w - 1, h - 2);

   painter_.setPen(c5);
   painter_.drawPoint(w, 1);
   painter_.drawPoint(1, h);

   painter_.setPen(c6);
   painter_.drawLine(w, 2, w, h - 1);
   painter_.drawLine(2, h, w - 1, h);

   painter_.setPen(c7);
   painter_.drawPoint(w - 1, h - 1);
   painter_.drawPoint(w, h);

   painter_.end();

   painter_.resetXForm();
}

void setPalette(Palette &pal, QColor c)
{
   pal[3] = c.rgb();

   int h, s, v;
   c.hsv(&h, &s, &v);

   if (v < 72)
      c.setHsv(h, s, 72);

   pal[0] = c.light(200).rgb();
   pal[1] = c.light(166).rgb();
   pal[2] = c.light(125).rgb();
   pal[4] = c.dark(133).rgb();
   pal[5] = c.dark(166).rgb();
   pal[6] = c.dark(200).rgb();
   pal[7] = c.dark(300).rgb();
}

void Static::_init()
{
   hicolour_ = QPixmap::defaultDepth() > 8;
   animationStyle_ = 0;
   updatePixmaps();
}

void Static::reset()
{
   updatePixmaps();
//   Workspace::self()->slotResetAllClientsDelayed();
}

void Static::updatePixmaps()
{
   _initSizes();

   _resizeAllPixmaps();

   _blankAllPixmaps();

   if (hicolour_)
   {
      _initPalettes();
      _initTextures();
   }

   _drawTitleTextAreaSides();

   _drawResizeCentralAreaSides();

   _drawTitleTextAreaBackground();

   _drawResizeCentralAreaBackground();

   _drawResizeHandles();

   _drawButtonBackgrounds();
}

void Static::_createTexture(QPixmap &px, int t, bool active)
{
   const QImage texture(QPixmap((const char **)texture_xpm).convertToImage());
   const QRgb w(qRgb(255, 255, 255));
   const QRgb b(qRgb(0, 0, 0));

   QColor c(KDecoration::options()->color(KDecoration::ColorType(t), active));

   QRgb mid    (c.rgb());
   QRgb light  (c.light(110).rgb());
   QRgb dark   (c.dark(110).rgb());

   QRgb* data(reinterpret_cast<QRgb *>(texture.bits()));

   for (int x = 0; x < 64*12; x++)
      if (data[x] == w)
         data[x] = light;
      else if (data[x] == b)
         data[x] = dark;
      else
         data[x] = mid;

   px.convertFromImage(texture);
}

const QPixmap& Static::buttonBase(bool active, bool down) const
{
   if (active)
      return down ? aButtonDown_ : aButtonUp_;
   else
      return down ? iButtonDown_ : iButtonUp_;
}

void Static::_initSizes()
{
   QFont f(KDecoration::options()->font(true)); // XXX false doesn't work right at the moment

   QFontMetrics fm(f);

   int h = fm.height();

   titleHeight_ = h + 6;

   if (titleHeight_ < 20)
      titleHeight_ = 20;

   buttonSize_ = titleHeight_ - 1;

   resizeHeight_ = 10;
}

void Static::_resizeAllPixmaps()
{
   aResize_        .resize(30, resizeHeight_);
   iResize_        .resize(30, resizeHeight_);
   aTitleTextLeft_ .resize( 3, titleHeight_);
   aTitleTextRight_.resize( 3, titleHeight_);
   iTitleTextLeft_ .resize( 3, titleHeight_);
   iTitleTextRight_.resize( 3, titleHeight_);
   aTitleTextMid_  .resize(64, titleHeight_);
   iTitleTextMid_  .resize(64, titleHeight_);
   aResizeMidLeft_ .resize( 3, resizeHeight_);
   aResizeMidRight_.resize( 3, resizeHeight_);
   iResizeMidLeft_ .resize( 3, resizeHeight_);
   iResizeMidRight_.resize( 3, resizeHeight_);
   aResizeMid_     .resize(64, resizeHeight_);
   iResizeMid_     .resize(64, resizeHeight_);

   aButtonUp_      .resize(buttonSize_, buttonSize_);
   iButtonUp_      .resize(buttonSize_, buttonSize_);
   aButtonDown_    .resize(buttonSize_, buttonSize_);
   iButtonDown_    .resize(buttonSize_, buttonSize_);
}

void Static::_blankAllPixmaps()
{
   aResize_        .fill(Qt::black);
   iResize_        .fill(Qt::black);
   aTitleTextLeft_ .fill(Qt::black);
   aTitleTextRight_.fill(Qt::black);
   iTitleTextLeft_ .fill(Qt::black);
   iTitleTextRight_.fill(Qt::black);
   aTitleTextMid_  .fill(Qt::black);
   iTitleTextMid_  .fill(Qt::black);
   aResizeMidLeft_ .fill(Qt::black);
   aResizeMidRight_.fill(Qt::black);
   iResizeMidLeft_ .fill(Qt::black);
   iResizeMidRight_.fill(Qt::black);
   aResizeMid_     .fill(Qt::black);
   iResizeMid_     .fill(Qt::black);
   aButtonUp_      .fill(Qt::black);
   iButtonUp_      .fill(Qt::black);
   aButtonDown_    .fill(Qt::black);
   iButtonDown_    .fill(Qt::black);
}

void Static::_initPalettes()
{
   const KDecorationOptions* options = KDecoration::options();
   setPalette(aButPal_, options->color(KDecoration::ColorButtonBg, true));
   setPalette(iButPal_, options->color(KDecoration::ColorButtonBg, false));

   setPalette(aTitlePal_,  options->color(KDecoration::ColorTitleBar, true));
   setPalette(iTitlePal_,  options->color(KDecoration::ColorTitleBar, false));

   setPalette(aResizePal_, options->color(KDecoration::ColorTitleBar, true));
   setPalette(iResizePal_, options->color(KDecoration::ColorTitleBar, false));
}

void Static::_initTextures()
{
   _createTexture(aTexture_,  KDecoration::ColorTitleBar, true);
   _createTexture(iTexture_,  KDecoration::ColorTitleBar, false);
   _createTexture(abTexture_, KDecoration::ColorButtonBg, true);
   _createTexture(ibTexture_, KDecoration::ColorButtonBg, false);
}

void Static::_drawTitleTextAreaSides()
{
   QPixmap temp(4, titleHeight_);
   temp.fill(Qt::black);

   transx = transy = 0.0;

   palette_ = aTitlePal_;
   down_ = false;

   _drawBorder(temp, 4, titleHeight_ - 2);

   painter_.begin(&aTitleTextLeft_);
   painter_.drawPixmap(1, 1, temp, 0, 1);
   painter_.end();

   painter_.begin(&aTitleTextRight_);
   painter_.drawPixmap(0, 1, temp, 2, 1);
   painter_.end();

   palette_ = iTitlePal_;
   _drawBorder(temp, 4, titleHeight_ - 2);

   painter_.begin(&iTitleTextLeft_);
   painter_.drawPixmap(1, 1, temp, 0, 1);
   painter_.end();

   painter_.begin(&iTitleTextRight_);
   painter_.drawPixmap(0, 1, temp, 2, 1);
   painter_.end();
}

void Static::_drawResizeCentralAreaSides()
{
   QPixmap temp(4, resizeHeight_);
   temp.fill(Qt::black);

   transy = 1.0;

   palette_ = aResizePal_;

   _drawBorder(temp, 4, resizeHeight_ - 3);

   painter_.begin(&aResizeMidLeft_);
   painter_.drawPixmap(0, 1, temp, 0, 1);
   painter_.end();

   painter_.begin(&aResizeMidRight_);
   painter_.drawPixmap(0, 1, temp, 2, 1);
   painter_.end();

   palette_ = iResizePal_;
   _drawBorder(temp, 4, resizeHeight_ - 3);

   painter_.begin(&iResizeMidLeft_);
   painter_.drawPixmap(0, 1, temp, 0, 1);
   painter_.end();

   painter_.begin(&iResizeMidRight_);
   painter_.drawPixmap(0, 1, temp, 2, 1);
   painter_.end();
}

void Static::_drawTitleTextAreaBackground()
{
   QPixmap temp(70, titleHeight_);
   temp.fill(Qt::black);

   transx = transy = 0.0;

   palette_ = aTitlePal_;
   _drawBorder(temp, 70, titleHeight_ - 3);

   painter_.begin(&aTitleTextMid_);
   painter_.drawPixmap(0, 1, temp, 2, 0);
   if (hicolour_)
      painter_.drawTiledPixmap(0, 4, 64, titleHeight_ - 8, aTexture_);
   painter_.end();

   palette_ = iTitlePal_;
   _drawBorder(temp, 70, titleHeight_ - 3);

   painter_.begin(&iTitleTextMid_);
   painter_.drawPixmap(0, 1, temp, 2, 0);
   if (hicolour_)
      painter_.drawTiledPixmap(0, 4, 64, titleHeight_ - 8, iTexture_);
   painter_.end();
}

void Static::_drawResizeCentralAreaBackground()
{
   QPixmap temp(70, titleHeight_);
   temp.fill(Qt::black);

   transy = 1.0;

   palette_ = aResizePal_;
   _drawBorder(temp, 70, resizeHeight_ - 3);

   painter_.begin(&aResizeMid_);
   painter_.drawPixmap(0, 0, temp, 2, 0);
   if (hicolour_)
      painter_.drawTiledPixmap(0, 4, 64, resizeHeight_ - 8, aTexture_);
   painter_.end();

   palette_ = iResizePal_;
   _drawBorder(temp, 70, 7);

   painter_.begin(&iResizeMid_);
   painter_.drawPixmap(0, 0, temp, 2, 0);
   if (hicolour_)
      painter_.drawTiledPixmap(0, 4, 64, resizeHeight_ - 8, iTexture_);
   painter_.end();
}

void Static::_drawResizeHandles()
{
   transx = transy = 1.0;

   down_ = false;

   palette_ = aResizePal_;
   _drawBorder(aResize_, 28, resizeHeight_ - 3);

   if (hicolour_)
   {
      painter_.begin(&aResize_);
      painter_.drawTiledPixmap(4, 4, 20, resizeHeight_ - 8, aTexture_);
      painter_.end();
   }

   palette_ = iResizePal_;
   _drawBorder(iResize_, 28, resizeHeight_ - 3);

   if (hicolour_)
   {
      painter_.begin(&iResize_);
      painter_.drawTiledPixmap(4, 4, 20, resizeHeight_ - 8, iTexture_);
      painter_.end();
   }
}

void Static::_drawButtonBackgrounds()
{
   buttonSize_ -= 2;

   down_ = false;
   transx = 0.0;
   transy = 1.0;
   palette_ = aButPal_;
   _drawBorder(aButtonUp_, buttonSize_, buttonSize_);
   down_ = true;
   _drawBorder(aButtonDown_, buttonSize_, buttonSize_);

   palette_ = iButPal_;
   _drawBorder(iButtonDown_, buttonSize_, buttonSize_);
   down_ = false;
   _drawBorder(iButtonUp_, buttonSize_, buttonSize_);

   painter_.begin(&aButtonUp_);

   if (hicolour_)
      painter_.drawTiledPixmap(2, 4, buttonSize_ - 4, buttonSize_ - 5,
                               abTexture_);

   painter_.end();

   painter_.begin(&iButtonUp_);
   if (hicolour_)
      painter_.drawTiledPixmap(2, 4, buttonSize_ - 4, buttonSize_ - 5,
                               ibTexture_);

   painter_.end();
}

} // End namespace

// vim:ts=2:sw=2:tw=78

