/*+
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    SDL - Simple DirectMedia Layer+
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    Copyright (C) 1997-2004 Sam Lantinga+
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+
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    This library is free software; you can redistribute it and/or+
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    modify it under the terms of the GNU Library General Public+
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    License as published by the Free Software Foundation; either+
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    version 2 of the License, or (at your option) any later version.+
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+
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    This library is distributed in the hope that it will be useful,+
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    but WITHOUT ANY WARRANTY; without even the implied warranty of+
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU+
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    Library General Public License for more details.+
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+
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    You should have received a copy of the GNU Library General Public+
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    License along with this library; if not, write to the Free+
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    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA+
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+
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    Sam Lantinga+
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    slouken@libsdl.org+
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*/+
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+
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#ifdef SAVE_RCSID+
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static char rcsid =+
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 "@(#) $Id$";+
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#endif+
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+
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#include "SDL_QWin.h"+
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#include <qapplication.h>+
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#include <qdirectpainter_qws.h>+
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+
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screenRotationT screenRotation = SDL_QT_NO_ROTATION;+
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+
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SDL_QWin::SDL_QWin(const QSize& size)+
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  : QWidget(0, "SDL_main"), my_painter(0), my_image(0),+
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    my_inhibit_resize(false), my_mouse_pos(-1,-1), my_flags(0),+
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    my_has_fullscreen(false), my_locked(0)+
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{+
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  setBackgroundMode(NoBackground);+
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}+
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+
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SDL_QWin::~SDL_QWin() {+
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  // Nothing to do yet.+
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  if(my_image) {+
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    delete my_image;+
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  }+
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}+
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+
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void SDL_QWin::setImage(QImage *image) {+
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  if ( my_image ) {+
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    delete my_image;+
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  }+
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  my_image = image;+
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  //  setFixedSize(image->size());+
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}+
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+
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void SDL_QWin::resizeEvent(QResizeEvent *e) {+
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  if(size() != qApp->desktop()->size()) {+
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    // Widget is not the correct size, so do the fullscreen magic+
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    my_has_fullscreen = false;+
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    enableFullscreen();+
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  }+
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  if(my_inhibit_resize) {+
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    my_inhibit_resize = false;+
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  } else {+
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    SDL_PrivateResize(e->size().width(), e->size().height());+
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  }+
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}+
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+
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void SDL_QWin::focusInEvent(QFocusEvent *) {+
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  // Always do it here, no matter the size.+
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  enableFullscreen();+
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  SDL_PrivateAppActive(true, SDL_APPINPUTFOCUS);+
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}+
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+
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void SDL_QWin::focusOutEvent(QFocusEvent *) {+
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  my_has_fullscreen = false;+
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  SDL_PrivateAppActive(false, SDL_APPINPUTFOCUS);+
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}+
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+
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void SDL_QWin::closeEvent(QCloseEvent *e) {+
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  SDL_PrivateQuit();+
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  e->ignore();+
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}+
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+
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void SDL_QWin::setMousePos(const QPoint &pos) {+
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  if(my_image->width() == height()) {+
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    if (screenRotation == SDL_QT_ROTATION_90)+
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      my_mouse_pos = QPoint(height()-pos.y(), pos.x());+
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    else if (screenRotation == SDL_QT_ROTATION_270)+
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      my_mouse_pos = QPoint(pos.y(), width()-pos.x());+
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  } else {+
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    my_mouse_pos = pos;+
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  }+
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}+
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+
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void SDL_QWin::mouseMoveEvent(QMouseEvent *e) {+
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  Qt::ButtonState button = e->button();+
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  int sdlstate = 0;+
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  if( (button & Qt::LeftButton)) {+
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    sdlstate |= SDL_BUTTON_LMASK;+
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  }+
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  if( (button & Qt::RightButton)) {+
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    sdlstate |= SDL_BUTTON_RMASK;+
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  }+
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  if( (button & Qt::MidButton)) {+
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    sdlstate |= SDL_BUTTON_MMASK;+
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  }+
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  setMousePos(e->pos());+
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  SDL_PrivateMouseMotion(sdlstate, 0, my_mouse_pos.x(), my_mouse_pos.y());+
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}+
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+
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void SDL_QWin::mousePressEvent(QMouseEvent *e) {+
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  mouseMoveEvent(e);+
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  Qt::ButtonState button = e->button();+
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  SDL_PrivateMouseButton(SDL_PRESSED,+
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			 (button & Qt::LeftButton) ? 1 :+
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			 ((button & Qt::RightButton) ? 2 : 3),+
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			 my_mouse_pos.x(), my_mouse_pos.y());+
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}+
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+
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void SDL_QWin::mouseReleaseEvent(QMouseEvent *e) {+
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  setMousePos(e->pos());+
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  Qt::ButtonState button = e->button();+
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  SDL_PrivateMouseButton(SDL_RELEASED,+
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			 (button & Qt::LeftButton) ? 1 :+
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			 ((button & Qt::RightButton) ? 2 : 3),+
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			 my_mouse_pos.x(), my_mouse_pos.y());+
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  my_mouse_pos = QPoint(-1, -1);+
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}+
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+
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static inline void+
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gs_fastRotateBlit_3 ( unsigned short *fb,+
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		      unsigned short *bits,+
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		      const QRect& rect )+
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{+
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  // FIXME: this only works correctly for 240x320 displays+
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  int startx, starty;+
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  int width, height;+
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  +
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  startx = rect.left() >> 1;+
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  starty = rect.top() >> 1;+
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  width  = ((rect.right() - rect.left()) >> 1) + 2;+
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  height = ((rect.bottom() - rect.top()) >> 1) + 2;+
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+
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  if((startx+width) > 120) {+
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    width = 120 - startx; // avoid horizontal overflow+
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  }+
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  if((starty+height) > 160) { +
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    height = 160 - starty; // avoid vertical overflow+
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  }+
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+
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  ulong *sp1, *sp2, *dp1, *dp2;+
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  ulong stop, sbot, dtop, dbot;    +
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  +
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  sp1 = (ulong*)bits + startx + starty*240;+
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  sp2 = sp1 + 120;+
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  dp1 = (ulong *)fb + (159 - starty) + startx*320;+
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  dp2 = dp1 + 160;+
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  int rowadd = (-320*width) - 1;+
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  int rowadd2 = 240 - width;+
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  // transfer in cells of 2x2 pixels in words+
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  for (int y=0; y<height; y++) {+
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    for (int x=0; x<width; x++) {+
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      // read source pixels+
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      stop = *sp1;+
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      sbot = *sp2;+
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      // rotate pixels+
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      dtop = (sbot & 0xffff) + ((stop & 0xffff)<<16);+
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      dbot = ((sbot & 0xffff0000)>>16) + (stop & 0xffff0000);+
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      // write to framebuffer+
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      *dp1 = dtop;+
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      *dp2 = dbot;+
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      // update source ptrs+
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      sp1++; sp2++;+
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      // update dest ptrs - 2 pix at a time+
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      dp1 += 320;+
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      dp2 += 320;+
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    }+
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    // adjust src ptrs - skip a row as we work in pairs+
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    sp1 += rowadd2;+
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    sp2 += rowadd2;+
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    // adjust dest ptrs for rotation+
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    dp1 += rowadd;+
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    dp2 += rowadd;+
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  }+
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}+
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+
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static inline void+
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gs_fastRotateBlit_1 ( unsigned short *fb,+
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		      unsigned short *bits,+
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		      const QRect& rect ) {+
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  // FIXME: this only works correctly for 240x320 displays+
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  int startx, starty;+
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  int width, height;+
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+
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  startx = rect.left() >> 1;+
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  starty = rect.top() >> 1;+
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  width  = ((rect.right() - rect.left()) >> 1) + 2;+
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  height = ((rect.bottom() - rect.top()) >> 1) + 2;+
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+
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  if((startx+width) > 120) {+
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    width = 120 - startx; // avoid horizontal overflow+
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  }+
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  if((starty+height) > 160) { +
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    height = 160 - starty; // avoid vertical overflow+
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  }+
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+
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  ulong *sp1, *sp2, *dp1, *dp2;+
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  ulong stop, sbot, dtop, dbot;    +
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  fb += 320*239; // Move "fb" to top left corner+
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  sp1 = (ulong*)bits + startx + starty*240;+
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  sp2 = sp1 + 120;+
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  dp1 = (ulong*)fb - startx * 320 - starty;+
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  dp2 = dp1 - 160;+
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  int rowadd = (320*width) + 1;+
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  int rowadd2 = 240 - width;+
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  // transfer in cells of 2x2 pixels in words+
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  for (int y=0; y<height; y++) {+
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    for (int x=0; x<width; x++) {+
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      // read+
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      stop = *sp1;+
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      sbot = *sp2;+
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      // rotate+
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      dtop = (stop & 0xffff) + ((sbot & 0xffff)<<16);+
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      dbot = ((stop & 0xffff0000)>>16) + (sbot & 0xffff0000);+
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      // write+
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      *dp1 = dtop;+
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      *dp2 = dbot;+
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      // update source ptrs+
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      sp1++; sp2++;+
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      // update dest ptrs - 2 pix at a time+
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      dp1 -= 320;+
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      dp2 -= 320;+
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    }+
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    // adjust src ptrs - skip a row as we work in pairs+
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    sp1 += rowadd2;+
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    sp2 += rowadd2;+
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    // adjust dest ptrs for rotation+
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    dp1 += rowadd;+
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    dp2 += rowadd;+
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  }+
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}+
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+
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// desktop, SL-A300 etc+
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bool SDL_QWin::repaintRotation0(const QRect& rect) {+
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  if(my_image->width() == width()) {+
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    uchar *fb = (uchar*)my_painter->frameBuffer();+
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    uchar *buf = (uchar*)my_image->bits();+
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    if(rect == my_image->rect()) {+
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      memcpy(fb, buf, width()*height()*2);+
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    } else {+
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      int h = rect.height();+
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      int wd = rect.width()<<1;+
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      int fblineadd = my_painter->lineStep();+
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      int buflineadd = my_image->bytesPerLine();+
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      fb  += (rect.left()<<1) + rect.top() * my_painter->lineStep();+
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      buf += (rect.left()<<1) + rect.top() * my_image->bytesPerLine();+
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      while(h--) {+
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	memcpy(fb, buf, wd);+
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	fb += fblineadd;+
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	buf += buflineadd;+
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      }+
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    }+
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  } else {+
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    return false; // FIXME: Landscape+
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  }+
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#ifdef __i386__+
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  my_painter->fillRect( rect, QBrush( Qt::NoBrush ) );+
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#endif+
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  return true;+
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}+
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+
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  +
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// Sharp Zaurus SL-5500 etc +
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bool SDL_QWin::repaintRotation3(const QRect& rect) {+
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  if(my_image->width() == width()) {+
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    ushort *fb = (ushort*)my_painter->frameBuffer();+
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    ushort *buf = (ushort*)my_image->bits();+
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    gs_fastRotateBlit_3(fb, buf, rect);+
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  } else {+
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    // landscape mode+
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    if (screenRotation == SDL_QT_ROTATION_90) {+
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      uchar *fb = (uchar*)my_painter->frameBuffer();+
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      uchar *buf = (uchar*)my_image->bits();+
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      if(rect == my_image->rect()) {+
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	memcpy(fb, buf, width()*height()*2);+
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      } else {+
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	int h = rect.height();+
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	int wd = rect.width()<<1;+
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	int fblineadd = my_painter->lineStep();+
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	int buflineadd = my_image->bytesPerLine();+
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	fb  += (rect.left()<<1) + rect.top() * my_painter->lineStep();+
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	buf += (rect.left()<<1) + rect.top() * my_image->bytesPerLine();+
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	while(h--) {+
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	  memcpy(fb, buf, wd);+
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	  fb += fblineadd;+
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	  buf += buflineadd;+
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	}+
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      }+
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    } else if (screenRotation == SDL_QT_ROTATION_270) {+
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      int h = rect.height();+
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      int wd = rect.width();+
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      int fblineadd = my_painter->lineStep() - (rect.width() << 1);+
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      int buflineadd = my_image->bytesPerLine() - (rect.width() << 1);+
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      int w;+
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+
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      uchar *fb = (uchar*)my_painter->frameBuffer();+
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      uchar *buf = (uchar*)my_image->bits();+
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        +
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      fb += ((my_painter->width() - (rect.top() + rect.height())) * +
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	     my_painter->lineStep()) + ((my_painter->height() - ((rect.left() + +
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								  rect.width()))) << 1);+
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+
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      buf += my_image->bytesPerLine() * (rect.top() + rect.height()) -+
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	(((my_image->width() - (rect.left() + rect.width())) << 1) + 2);+
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+
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      while(h--) {+
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	w = wd;+
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	while(w--) *((unsigned short*)fb)++ = *((unsigned short*)buf)--;+
−
	fb += fblineadd;+
−
	buf -= buflineadd;+
−
      }+
−
    }+
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  }+
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  return true;+
−
}+
−
+
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// ipaq 3800...+
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bool SDL_QWin::repaintRotation1(const QRect& rect) {+
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  if(my_image->width() == width()) {+
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    ushort *fb = (ushort*)my_painter->frameBuffer();+
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    ushort *buf = (ushort*)my_image->bits();+
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    gs_fastRotateBlit_1(fb, buf, rect);+
−
  } else {+
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    return false; // FIXME: landscape mode+
−
  }+
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  return true;+
−
}+
−
+
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void SDL_QWin::repaintRect(const QRect& rect) {+
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  if(!my_painter || !rect.width() || !rect.height()) {+
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    return;+
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  }+
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  +
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  if(QPixmap::defaultDepth() == 16) {+
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    switch(my_painter->transformOrientation()) {+
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    case 3:+
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      if(repaintRotation3(rect)) { return;  }+
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      break;+
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    case 1:+
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      if(repaintRotation1(rect)) { return;  }+
−
      break;+
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    case 0:+
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      if(repaintRotation0(rect)) { return;  }+
−
      break;+
−
    }+
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  } +
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  my_painter->drawImage(rect.topLeft(), *my_image, rect);+
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}+
−
+
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// This paints the current buffer to the screen, when desired. +
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void SDL_QWin::paintEvent(QPaintEvent *ev) {  +
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  if(my_image) {+
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    lockScreen(true);+
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    repaintRect(ev->rect());+
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    unlockScreen();+
−
  }+
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}  +
−
+
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/* Function to translate a keyboard transition and queue the key event+
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 * This should probably be a table although this method isn't exactly+
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 * slow.+
−
 */+
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void SDL_QWin::QueueKey(QKeyEvent *e, int pressed)+
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{  +
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  SDL_keysym keysym;+
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  int scancode = e->key();+
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  /* Set the keysym information */+
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  if(scancode >= 'A' && scancode <= 'Z') {+
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    // Qt sends uppercase, SDL wants lowercase+
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    keysym.sym = static_cast<SDLKey>(scancode + 32);+
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  } else if(scancode  >= 0x1000) {+
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    // Special keys+
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    switch(scancode) {+
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    case Qt::Key_Escape: scancode = SDLK_ESCAPE; break;+
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    case Qt::Key_Tab: scancode = SDLK_TAB; break;+
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    case Qt::Key_Backspace: scancode = SDLK_BACKSPACE; break;+
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    case Qt::Key_Return: scancode = SDLK_RETURN; break;+
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    case Qt::Key_Enter: scancode = SDLK_KP_ENTER; break;+
−
    case Qt::Key_Insert: scancode = SDLK_INSERT; break;+
−
    case Qt::Key_Delete: scancode = SDLK_DELETE; break;+
−
    case Qt::Key_Pause: scancode = SDLK_PAUSE; break;+
−
    case Qt::Key_Print: scancode = SDLK_PRINT; break;+
−
    case Qt::Key_SysReq: scancode = SDLK_SYSREQ; break;+
−
    case Qt::Key_Home: scancode = SDLK_HOME; break;+
−
    case Qt::Key_End: scancode = SDLK_END; break;+
−
    // We want the control keys to rotate with the screen+
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    case Qt::Key_Left: +
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        if (screenRotation == SDL_QT_ROTATION_90) scancode = SDLK_UP;+
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        else if (screenRotation == SDL_QT_ROTATION_270) scancode = SDLK_DOWN;+
−
        else scancode = SDLK_LEFT;+
−
        break;+
−
    case Qt::Key_Up: +
−
        if (screenRotation == SDL_QT_ROTATION_90) scancode = SDLK_RIGHT;+
−
        else if (screenRotation == SDL_QT_ROTATION_270) scancode = SDLK_LEFT;+
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        else scancode = SDLK_UP;+
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        break;+
−
    case Qt::Key_Right: +
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        if (screenRotation == SDL_QT_ROTATION_90) scancode = SDLK_DOWN;+
−
        else if (screenRotation == SDL_QT_ROTATION_270) scancode = SDLK_UP;+
−
        else scancode = SDLK_RIGHT;+
−
        break;+
−
    case Qt::Key_Down:+
−
        if (screenRotation == SDL_QT_ROTATION_90) scancode = SDLK_LEFT;+
−
        else if (screenRotation == SDL_QT_ROTATION_270) scancode = SDLK_RIGHT;+
−
        else scancode = SDLK_DOWN;+
−
        break;+
−
    case Qt::Key_Prior: scancode = SDLK_PAGEUP; break;+
−
    case Qt::Key_Next: scancode = SDLK_PAGEDOWN; break;+
−
    case Qt::Key_Shift: scancode = SDLK_LSHIFT; break;+
−
    case Qt::Key_Control: scancode = SDLK_LCTRL; break;+
−
    case Qt::Key_Meta: scancode = SDLK_LMETA; break;+
−
    case Qt::Key_Alt: scancode = SDLK_LALT; break;+
−
    case Qt::Key_CapsLock: scancode = SDLK_CAPSLOCK; break;+
−
    case Qt::Key_NumLock: scancode = SDLK_NUMLOCK; break;+
−
    case Qt::Key_ScrollLock: scancode = SDLK_SCROLLOCK; break;+
−
    case Qt::Key_F1: scancode = SDLK_F1; break;+
−
    case Qt::Key_F2: scancode = SDLK_F2; break;+
−
    case Qt::Key_F3: scancode = SDLK_F3; break;+
−
    case Qt::Key_F4: scancode = SDLK_F4; break;+
−
    case Qt::Key_F5: scancode = SDLK_F5; break;+
−
    case Qt::Key_F6: scancode = SDLK_F6; break;+
−
    case Qt::Key_F7: scancode = SDLK_F7; break;+
−
    case Qt::Key_F8: scancode = SDLK_F8; break;+
−
    case Qt::Key_F9: scancode = SDLK_F9; break;+
−
    case Qt::Key_F10: scancode = SDLK_F10; break;+
−
    case Qt::Key_F11: scancode = SDLK_F11; break;+
−
    case Qt::Key_F12: scancode = SDLK_F12; break;+
−
    case Qt::Key_F13: scancode = SDLK_F13; break;+
−
    case Qt::Key_F14: scancode = SDLK_F14; break;+
−
    case Qt::Key_F15: scancode = SDLK_F15; break;+
−
    case Qt::Key_Super_L: scancode = SDLK_LSUPER; break;+
−
    case Qt::Key_Super_R: scancode = SDLK_RSUPER; break;+
−
    case Qt::Key_Menu: scancode = SDLK_MENU; break;+
−
    case Qt::Key_Help: scancode = SDLK_HELP; break;+
−
+
−
    case Qt::Key_F33:+
−
      // FIXME: This is a hack to enable the OK key on+
−
      // Zaurii devices. SDLK_RETURN is a suitable key to use+
−
      // since it often is used as such.+
−
      //     david@hedbor.org+
−
      scancode = SDLK_RETURN;+
−
      break;+
−
    default:+
−
      scancode = SDLK_UNKNOWN;+
−
      break;+
−
    }+
−
    keysym.sym = static_cast<SDLKey>(scancode);    +
−
  } else {+
−
    keysym.sym = static_cast<SDLKey>(scancode);    +
−
  }+
−
  keysym.scancode = scancode;+
−
  keysym.mod = KMOD_NONE;+
−
  ButtonState st = e->state();+
−
  if( (st & ShiftButton) )   { keysym.mod = static_cast<SDLMod>(keysym.mod | KMOD_LSHIFT);  }+
−
  if( (st & ControlButton) ) { keysym.mod = static_cast<SDLMod>(keysym.mod | KMOD_LCTRL);  }+
−
  if( (st & AltButton) )     { keysym.mod = static_cast<SDLMod>(keysym.mod | KMOD_LALT);  }+
−
  if ( SDL_TranslateUNICODE ) {+
−
    QChar qchar = e->text()[0];+
−
    keysym.unicode = qchar.unicode();+
−
  } else {+
−
    keysym.unicode = 0;+
−
  }+
−
+
−
  /* NUMLOCK and CAPSLOCK are implemented as double-presses in reality */+
−
  //	if ( (keysym.sym == SDLK_NUMLOCK) || (keysym.sym == SDLK_CAPSLOCK) ) {+
−
  //		pressed = 1;+
−
  //	}+
−
+
−
  /* Queue the key event */+
−
  if ( pressed ) {+
−
    SDL_PrivateKeyboard(SDL_PRESSED, &keysym);+
−
  } else {+
−
    SDL_PrivateKeyboard(SDL_RELEASED, &keysym);+
−
  }+
−
}+
−
+
−
void SDL_QWin::setFullscreen(bool fs_on) {+
−
  my_has_fullscreen = false;+
−
  enableFullscreen();+
−
}+
−
+
−
void SDL_QWin::enableFullscreen() {+
−
  // Make sure size is correct+
−
  if(!my_has_fullscreen) {+
−
    setFixedSize(qApp->desktop()->size());+
−
    // This call is needed because showFullScreen won't work+
−
    // correctly if the widget already considers itself to be fullscreen.+
−
    showNormal();+
−
    // This is needed because showNormal() forcefully changes the window+
−
    // style to WSTyle_TopLevel.+
−
    setWFlags(WStyle_Customize | WStyle_NoBorder);+
−
    // Enable fullscreen.+
−
    showFullScreen();+
−
    my_has_fullscreen = true;+
−
  }+
−
}+
−
+
−
bool SDL_QWin::lockScreen(bool force) {+
−
  if(!my_painter) {+
−
    if(force || (isVisible() && isActiveWindow())) {+
−
      my_painter = new QDirectPainter(this);+
−
    } else {+
−
      return false;+
−
    }+
−
  }+
−
  my_locked++; // Increate lock refcount+
−
  return true;+
−
}+
−
+
−
void SDL_QWin::unlockScreen() {+
−
  if(my_locked > 0) {+
−
    my_locked--; // decrease lock refcount;+
−
  }+
−
  if(!my_locked && my_painter) {+
−
    my_painter->end();+
−
    delete my_painter;+
−
    my_painter = 0;+
−
  }+
−
}+
−