/*

SDL - Simple DirectMedia Layer

Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga

This library is free software; you can redistribute it and/or

modify it under the terms of the GNU Library General Public

License as published by the Free Software Foundation; either

version 2 of the License, or (at your option) any later version.

This library 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

Library General Public License for more details.

You should have received a copy of the GNU Library General Public

License along with this library; if not, write to the Free

Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

Sam Lantinga

slouken@libsdl.org

*/

#ifdef SAVE_RCSID

static char rcsid =

"@(#) $Id$";

#endif

#include "SDL_QWin.h"

#include <qapplication.h>

#include <qdirectpainter_qws.h>

screenRotationT screenRotation = SDL_QT_NO_ROTATION;

SDL_QWin::SDL_QWin(const QSize& size)

: QWidget(0, "SDL_main"), my_painter(0), my_image(0),

my_inhibit_resize(false), my_mouse_pos(-1,-1), my_flags(0),

my_has_fullscreen(false), my_locked(0)

{

setBackgroundMode(NoBackground);

}

SDL_QWin::~SDL_QWin() {

// Nothing to do yet.

if(my_image) {

delete my_image;

}

}

void SDL_QWin::setImage(QImage *image) {

if ( my_image ) {

delete my_image;

}

my_image = image;

// setFixedSize(image->size());

}

void SDL_QWin::resizeEvent(QResizeEvent *e) {

if(size() != qApp->desktop()->size()) {

// Widget is not the correct size, so do the fullscreen magic

my_has_fullscreen = false;

enableFullscreen();

}

if(my_inhibit_resize) {

my_inhibit_resize = false;

} else {

SDL_PrivateResize(e->size().width(), e->size().height());

}

}

void SDL_QWin::focusInEvent(QFocusEvent *) {

// Always do it here, no matter the size.

enableFullscreen();

SDL_PrivateAppActive(true, SDL_APPINPUTFOCUS);

}

void SDL_QWin::focusOutEvent(QFocusEvent *) {

my_has_fullscreen = false;

SDL_PrivateAppActive(false, SDL_APPINPUTFOCUS);

}

void SDL_QWin::closeEvent(QCloseEvent *e) {

SDL_PrivateQuit();

e->ignore();

}

void SDL_QWin::setMousePos(const QPoint &pos) {

if(my_image->width() == height()) {

if (screenRotation == SDL_QT_ROTATION_90)

my_mouse_pos = QPoint(height()-pos.y(), pos.x());

else if (screenRotation == SDL_QT_ROTATION_270)

my_mouse_pos = QPoint(pos.y(), width()-pos.x());

} else {

my_mouse_pos = pos;

}

}

void SDL_QWin::mouseMoveEvent(QMouseEvent *e) {

Qt::ButtonState button = e->button();

int sdlstate = 0;

if( (button & Qt::LeftButton)) {

sdlstate |= SDL_BUTTON_LMASK;

}

if( (button & Qt::RightButton)) {

sdlstate |= SDL_BUTTON_RMASK;

}

if( (button & Qt::MidButton)) {

sdlstate |= SDL_BUTTON_MMASK;

}

setMousePos(e->pos());

SDL_PrivateMouseMotion(sdlstate, 0, my_mouse_pos.x(), my_mouse_pos.y());

}

void SDL_QWin::mousePressEvent(QMouseEvent *e) {

Qt::ButtonState button = e->button();

SDL_PrivateMouseButton(SDL_PRESSED,

(button & Qt::LeftButton) ? 1 :

((button & Qt::RightButton) ? 2 : 3),

}

void SDL_QWin::mouseReleaseEvent(QMouseEvent *e) {

Qt::ButtonState button = e->button();

SDL_PrivateMouseButton(SDL_RELEASED,

(button & Qt::LeftButton) ? 1 :

((button & Qt::RightButton) ? 2 : 3),

my_mouse_pos.x(), my_mouse_pos.y());

my_mouse_pos = QPoint(-1, -1);

}

static inline void

gs_fastRotateBlit_3 ( unsigned short *fb,

unsigned short *bits,

const QRect& rect )

int startx, starty;

int width, height;

startx = rect.left() >> 1;

starty = rect.top() >> 1;

width = ((rect.right() - rect.left()) >> 1) + 2;

height = ((rect.bottom() - rect.top()) >> 1) + 2;

if((startx+width) > 120) {

width = 120 - startx; // avoid horizontal overflow

}

if((starty+height) > 160) {

height = 160 - starty; // avoid vertical overflow

}

ulong *sp1, *sp2, *dp1, *dp2;

ulong stop, sbot, dtop, dbot;

sp1 = (ulong*)bits + startx + starty*240;

sp2 = sp1 + 120;

dp1 = (ulong *)fb + (159 - starty) + startx*320;

dp2 = dp1 + 160;

int rowadd = (-320*width) - 1;

int rowadd2 = 240 - width;

// transfer in cells of 2x2 pixels in words

for (int y=0; y<height; y++) {

for (int x=0; x<width; x++) {

// read source pixels

stop = *sp1;

sbot = *sp2;

// rotate pixels

dtop = (sbot & 0xffff) + ((stop & 0xffff)<<16);

dbot = ((sbot & 0xffff0000)>>16) + (stop & 0xffff0000);

// write to framebuffer

*dp1 = dtop;

*dp2 = dbot;

// update source ptrs

sp1++; sp2++;

// update dest ptrs - 2 pix at a time

dp1 += 320;

dp2 += 320;

}

// adjust src ptrs - skip a row as we work in pairs

sp1 += rowadd2;

sp2 += rowadd2;

// adjust dest ptrs for rotation

dp1 += rowadd;

dp2 += rowadd;

}

}

static inline void

gs_fastRotateBlit_1 ( unsigned short *fb,

unsigned short *bits,

const QRect& rect ) {

// FIXME: this only works correctly for 240x320 displays

int startx, starty;

int width, height;

startx = rect.left() >> 1;

starty = rect.top() >> 1;

width = ((rect.right() - rect.left()) >> 1) + 2;

height = ((rect.bottom() - rect.top()) >> 1) + 2;

if((startx+width) > 120) {

width = 120 - startx; // avoid horizontal overflow

if((starty+height) > 160) {

height = 160 - starty; // avoid vertical overflow

}

ulong *sp1, *sp2, *dp1, *dp2;

ulong stop, sbot, dtop, dbot;

fb += 320*239; // Move "fb" to top left corner

sp1 = (ulong*)bits + startx + starty*240;

sp2 = sp1 + 120;

dp1 = (ulong*)fb - startx * 320 - starty;

dp2 = dp1 - 160;

int rowadd = (320*width) + 1;

int rowadd2 = 240 - width;

// transfer in cells of 2x2 pixels in words

for (int y=0; y<height; y++) {

for (int x=0; x<width; x++) {

// read

stop = *sp1;

sbot = *sp2;

// rotate

dtop = (stop & 0xffff) + ((sbot & 0xffff)<<16);

dbot = ((stop & 0xffff0000)>>16) + (sbot & 0xffff0000);

// write

*dp1 = dtop;

*dp2 = dbot;

// update source ptrs

sp1++; sp2++;

// update dest ptrs - 2 pix at a time

dp1 -= 320;

dp2 -= 320;

}

// adjust src ptrs - skip a row as we work in pairs

sp1 += rowadd2;

sp2 += rowadd2;

// adjust dest ptrs for rotation

dp1 += rowadd;

dp2 += rowadd;

}

}

// desktop, SL-A300 etc

bool SDL_QWin::repaintRotation0(const QRect& rect) {

if(my_image->width() == width()) {

uchar *fb = (uchar*)my_painter->frameBuffer();

uchar *buf = (uchar*)my_image->bits();

if(rect == my_image->rect()) {

memcpy(fb, buf, width()*height()*2);

int h = rect.height();

int wd = rect.width()<<1;

int fblineadd = my_painter->lineStep();

int buflineadd = my_image->bytesPerLine();

fb += (rect.left()<<1) + rect.top() * my_painter->lineStep();

buf += (rect.left()<<1) + rect.top() * my_image->bytesPerLine();

while(h--) {

memcpy(fb, buf, wd);

fb += fblineadd;

buf += buflineadd;

}

}

} else {

#ifdef __i386__

my_painter->fillRect( rect, QBrush( Qt::NoBrush ) );

return true;

}

// Sharp Zaurus SL-5500 etc

bool SDL_QWin::repaintRotation3(const QRect& rect) {

if(my_image->width() == width()) {

ushort *fb = (ushort*)my_painter->frameBuffer();

ushort *buf = (ushort*)my_image->bits();

gs_fastRotateBlit_3(fb, buf, rect);

} else {

// landscape mode

if (screenRotation == SDL_QT_ROTATION_90) {

uchar *fb = (uchar*)my_painter->frameBuffer();

uchar *buf = (uchar*)my_image->bits();

if(rect == my_image->rect()) {

memcpy(fb, buf, width()*height()*2);

} else {

int h = rect.height();

int wd = rect.width()<<1;

int fblineadd = my_painter->lineStep();

int buflineadd = my_image->bytesPerLine();

fb += (rect.left()<<1) + rect.top() * my_painter->lineStep();

buf += (rect.left()<<1) + rect.top() * my_image->bytesPerLine();

while(h--) {

memcpy(fb, buf, wd);

fb += fblineadd;

buf += buflineadd;

}

}

} else if (screenRotation == SDL_QT_ROTATION_270) {

int h = rect.height();

int wd = rect.width();

int fblineadd = my_painter->lineStep() - (rect.width() << 1);

int buflineadd = my_image->bytesPerLine() - (rect.width() << 1);

int w;

uchar *fb = (uchar*)my_painter->frameBuffer();

uchar *buf = (uchar*)my_image->bits();

fb += ((my_painter->width() - (rect.top() + rect.height())) *

my_painter->lineStep()) + ((my_painter->height() - ((rect.left() +

rect.width()))) << 1);

buf += my_image->bytesPerLine() * (rect.top() + rect.height()) -

(((my_image->width() - (rect.left() + rect.width())) << 1) + 2);

while(h--) {

w = wd;

while(w--) *((unsigned short*)fb)++ = *((unsigned short*)buf)--;

fb += fblineadd;

buf -= buflineadd;

}

}

}

return true;

}

// ipaq 3800...

bool SDL_QWin::repaintRotation1(const QRect& rect) {

if(my_image->width() == width()) {

ushort *fb = (ushort*)my_painter->frameBuffer();

ushort *buf = (ushort*)my_image->bits();

gs_fastRotateBlit_1(fb, buf, rect);

} else {

return false; // FIXME: landscape mode

}

return true;

}

void SDL_QWin::repaintRect(const QRect& rect) {

if(!my_painter || !rect.width() || !rect.height()) {

return;

}

if(QPixmap::defaultDepth() == 16) {

switch(my_painter->transformOrientation()) {

case 3:

if(repaintRotation3(rect)) { return; }

break;

case 1:

if(repaintRotation1(rect)) { return; }

break;

case 0:

if(repaintRotation0(rect)) { return; }

break;

}

}

my_painter->drawImage(rect.topLeft(), *my_image, rect);

}

// This paints the current buffer to the screen, when desired.

void SDL_QWin::paintEvent(QPaintEvent *ev) {

if(my_image) {

lockScreen(true);

repaintRect(ev->rect());

unlockScreen();

}

}

/* Function to translate a keyboard transition and queue the key event

* This should probably be a table although this method isn't exactly

* slow.

*/

void SDL_QWin::QueueKey(QKeyEvent *e, int pressed)

{

SDL_keysym keysym;

int scancode = e->key();

/* Set the keysym information */

if(scancode >= 'A' && scancode <= 'Z') {

// Qt sends uppercase, SDL wants lowercase

keysym.sym = static_cast<SDLKey>(scancode + 32);

} else if(scancode >= 0x1000) {

// Special keys

switch(scancode) {

case Qt::Key_Escape: scancode = SDLK_ESCAPE; break;

case Qt::Key_Tab: scancode = SDLK_TAB; break;

case Qt::Key_Backspace: scancode = SDLK_BACKSPACE; break;

case Qt::Key_Return: scancode = SDLK_RETURN; break;

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

case Qt::Key_Left:

if (screenRotation == SDL_QT_ROTATION_90) scancode = SDLK_UP;

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;

else scancode = SDLK_UP;

break;

case Qt::Key_Right:

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;

}

}