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x11window.cc
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x11window.cc
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/* HornetsEye - Computer Vision with Ruby
Copyright (C) 2006, 2007, 2008, 2009 Jan Wedekind
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 3 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. If not, see <http://www.gnu.org/licenses/>. */
#ifndef NDEBUG
#include <iostream>
#endif
#include <X11/keysym.h>
#include <X11/xpm.h>
#include <stdint.h>
#include "rubytools.hh"
#include "x11display.hh"
#include "x11output.hh"
#include "x11window.hh"
using namespace std;
// created from favicon.ico
static const char *hornetseye_xpm[] = {
"16 16 152 2",
" c black",
". c #6FB062",
"X c #2DD1B8",
"o c #37D7C6",
"O c #5B9091",
"+ c #5A9092",
"@ c #5A9192",
"# c #5A9290",
"$ c #5C9192",
"% c #5D9393",
"& c #659187",
"* c #7FBF86",
"= c #40C8A6",
"- c #46D4BE",
"; c #59CDAB",
": c #7BC79F",
"> c #64CAA2",
", c #64CCA8",
"< c #67CDAA",
"1 c #6ACEA9",
"2 c #69D1B3",
"3 c #5DDFD5",
"4 c #4CE4DF",
"5 c #66DEC9",
"6 c #73DBC6",
"7 c #79E5DC",
"8 c #6CE8EA",
"9 c #79EBED",
"0 c #87B35F",
"q c #89B258",
"w c #8ABE7A",
"e c #AFBB5D",
"r c #AFBA62",
"t c #BEC062",
"y c #B8C36F",
"u c #B8F149",
"i c #B9F24A",
"p c #B8F04C",
"a c #B9F14D",
"s c #BDF04E",
"d c #FF962F",
"f c #FF9B39",
"g c #DCB642",
"h c #DABA48",
"j c #E3BD55",
"k c #E4BE58",
"l c #FFB369",
"z c #C1C268",
"x c #D6C774",
"c c #D1C879",
"v c #E7C363",
"b c #EAC86C",
"n c #8ACA9B",
"m c #96C587",
"M c #99C589",
"N c #81CFA6",
"B c #8CCEA3",
"V c #80D0A9",
"C c #9CD6B5",
"Z c #A5C787",
"A c #A4C890",
"S c #A8C0B8",
"D c #84E0D0",
"F c #8FE3D2",
"G c #90E0C8",
"H c #99E5D7",
"J c #9EE4D4",
"K c #85E9E1",
"L c #86EEEB",
"P c #86EDEE",
"I c #8BEEEF",
"U c #8FEDEC",
"Y c #96EAE1",
"T c #95EFEE",
"R c #94EFF0",
"E c #98EFF0",
"W c #90F0EF",
"Q c #95F1F0",
"! c #A0C0C0",
"~ c #A1C1C1",
"^ c #A3C1C1",
"/ c #A2C2C0",
"( c #B0E0C8",
") c #B5E1CA",
"_ c #B0EADB",
"` c #B3EBDE",
"' c #AAF2EF",
"] c #B5F4F5",
"[ c #B5F5F5",
"{ c #DDCD81",
"} c #D9D18D",
"| c #C4DCB4",
" . c #D1DCB2",
".. c #D1DFBB",
"X. c #D6F698",
"o. c #D7F69A",
"O. c #D9F797",
"+. c #D8F79B",
"@. c #D9F69A",
"#. c #E4CC82",
"$. c #EAD99E",
"%. c #EBDA9F",
"&. c #EDD99D",
"*. c #FFC083",
"=. c #FFC68F",
"-. c #FFC995",
";. c #EBDBA3",
":. c #F1DEA9",
">. c #F2DFAE",
",. c #FFDFBF",
"<. c #EEE1B2",
"1. c #EEE4B8",
"2. c #F4E1B2",
"3. c #FFE0BF",
"4. c #D3DFDF",
"5. c #D7DFDB",
"6. c #D3DFE1",
"7. c #D8E5C3",
"8. c #DAE6C8",
"9. c #CDF9F7",
"0. c #CDF8F9",
"q. c #D3E1E1",
"w. c #D2E0E2",
"e. c #D2E2E2",
"r. c #D4E2E2",
"t. c #D0F8F5",
"y. c #D2FAF7",
"u. c #D5F8F9",
"i. c #D6FAF8",
"p. c #D9F9F9",
"a. c #ECFBCF",
"s. c #EDFACE",
"d. c #EDFBCF",
"f. c #ECFAD2",
"g. c #F7E9C7",
"h. c #F7EDCF",
"j. c #F8EAC8",
"k. c #FAEED2",
"l. c #FAF0D6",
"z. c #FAF1DA",
"x. c #E3FBFB",
"c. c #E7FBFB",
"v. c #E4FCFA",
"b. c #ECFBFC",
"n. c #EDFCFD",
"m. c #F5FDFD",
"M. c #FAFEFE",
"N. c #FBFFFF",
"B. c #FFFDFB",
"V. c #FEFEFE",
"C. c gray100",
"Z. c None",
"Z.Z.,.,.,.,.,.,.,.a.a.a.a.f.s.a.",
"Z.-.*.*.*.*.*.*.*.X.@.@.@.+.O.X.",
"=.l f d d d d d d i i a s s i i ",
"5.S & 7.8._ 1.V.V.V.v.) ...J } ",
"r.^ % p.i.' &.V.V.V.v.C t.9.T { ",
"e.^ % V.V.x.( >.V.V.H <.V.V.n.F ",
"e.^ + V.V.V.E B n N A z.V.V.V.Q ",
"e.^ + V.V.m.: h.V.N.K b V.V.V.2 ",
"4.! O ;.;.D c V.V.V.[ Z #.;.G r ",
"4.! # Q I 3 k V.V.V.c.= L L 4 h ",
"r.^ % V.V.[ M :.V.V.7 x V.V.t.V ",
"r.^ % V.V.V.8 0 w * . l.V.V.V.9 ",
"e.^ + V.V.V.; | i.9.6 v V.V.V.5 ",
"e.! + g.h.Y e V.V.V.W z 2.h.` q ",
"4.! + < < - j V.V.V.n.X > , o g ",
"e.^ % V.V.Q y j.V.V.U t V.V.[ M "
};
VALUE X11Window::cRubyClass = Qnil;
X11Window::X11Window( X11DisplayPtr display, X11PainterPtr painter,
int width, int height, Window parent ):
m_display(display), m_painter(painter), m_width(width), m_height(height)
{
// state = true;
ERRORMACRO( width > 0 && height > 0, Error, ,
width << 'x' << height << " is an illegal window size." );
m_visualInfo = painter->visualInfo( display );
/* // Request true-colour X11 visual.
if ( !XMatchVisualInfo( display->get(),
DefaultScreen( display->get() ),
24, TrueColor, &m_visualInfo) ) {
if ( !XMatchVisualInfo( display->get(),
DefaultScreen( display->get() ),
16, TrueColor, &m_visualInfo ) ) {
if ( !XMatchVisualInfo( display->get(),
DefaultScreen( display->get() ),
15, TrueColor, &m_visualInfo ) ) {
ERRORMACRO( false, Error, ,
"Could not get X11 visual for true-colour display." );
};
};
}; */
// Create a color map.
m_colourMap = XCreateColormap( m_display->get(),
DefaultRootWindow( display->get() ),
m_visualInfo->visual, AllocNone );
ERRORMACRO( m_colourMap != 0, Error, ,
"Couldn't allocate X11 colormap." );
try {
// http://space-out.net/readarticle.php?article=1
XSetWindowAttributes attributes;
attributes.colormap = m_colourMap;
attributes.event_mask = KeyPressMask | ExposureMask | StructureNotifyMask;
#ifndef NDEBUG
cerr << "Creating window of size " << width << 'x' << height << endl;
#endif
if ( parent == 0 )
parent = RootWindow( display->get(),
m_visualInfo->screen );
m_window = XCreateWindow( display->get(),
parent,
0, 0, width, height,
0, m_visualInfo->depth, InputOutput,
m_visualInfo->visual,
CWColormap | CWEventMask,
&attributes );
ERRORMACRO( m_window != 0, Error, , "Error creating X11 window." );
wmProtocols = XInternAtom( display->get(), "WM_PROTOCOLS", False );
wmDeleteWindow = XInternAtom( display->get(), "WM_DELETE_WINDOW", False );
XSetWMProtocols( display->get(), m_window, &wmDeleteWindow, 1 );
XWMHints wmHints;
XpmCreatePixmapFromData( display->get(), m_window,
(char **)hornetseye_xpm,
&wmHints.icon_pixmap,
&wmHints.icon_mask,
0 );
wmHints.flags = IconPixmapHint | IconMaskHint;
XSetWMHints( display->get(), m_window, &wmHints );
try {
painter->registerWindow( this );
// Add window to list of display-class.
display->addWindow( this );
// Create graphics context.
XGCValues xgcv;
m_gc = XCreateGC( display->get(), m_window, 0L, &xgcv );
} catch ( Error &e ) {
display->removeWindow( this );
XDestroyWindow( display->get(), m_window );
painter->unregisterWindow();
throw e;
};
} catch ( Error &e ) {
XFreeColormap( display->get(), m_colourMap );
throw e;
};
}
X11Window::~X11Window(void)
{
#ifndef NDEBUG
cerr << "Destroying X11-window." << endl;
#endif
XFreeGC( m_display->get(), m_gc );
m_display->removeWindow( this );
XDestroyWindow( m_display->get(), m_window );
m_painter->unregisterWindow();
XFreeColormap( m_display->get(), m_colourMap );
}
void X11Window::show(void) throw (Error)
{
XEvent event;
XMapWindow( m_display->get(), m_window );
// Wait for X-server.
XIfEvent( m_display->get(), &event, waitForNotify, (char *)m_window );
repaint( true );
}
void X11Window::close(void)
{
XEvent event;
XUnmapWindow( m_display->get(), m_window );
// Wait for X-server.
XIfEvent( m_display->get(), &event, waitForNotify, (char *)m_window );
}
void X11Window::setTitle( const char *_title )
{
char *title = strdup( _title );
XStoreName( m_display->get(), m_window, title );
free( title );
}
Bool X11Window::waitForNotify( Display *, XEvent *e, char *arg )
{
return ( e->type == MapNotify || e->type == UnmapNotify ) &&
( e->xmap.window == (Window)arg );
}
void X11Window::resize( int width, int height ) throw (Error)
{
ERRORMACRO( width > 0 && height > 0, Error, ,
"Cannot resize window to " << width << 'x' << height );
if ( m_width != width || m_height != height ) {
#ifndef NDEBUG
cerr << "Resizing to " << width << "x" << height << endl;
#endif
XResizeWindow( m_display->get(), m_window, width, height );
m_width = width;
m_height = height;
XFlush( m_display->get() );
};
}
void X11Window::repaint( bool x11Event ) throw (Error)
{
paintEvent( x11Event );
}
void X11Window::handleEvent( XEvent &event ) throw (Error)
{
#ifndef NDEBUG
cerr << "X11Window::handleEvent()" << endl;
#endif
switch ( event.type ) {
case ConfigureNotify:
#ifndef NDEBUG
cerr << "ConfigureNotify event" << endl;
#endif
while ( XCheckTypedWindowEvent( m_display->get(), m_window,
ConfigureNotify, &event ) );
m_width = event.xconfigure.width;
m_height = event.xconfigure.height;
paintEvent( true );
break;
case ClientMessage:
if ( ( event.xclient.message_type == wmProtocols ) &&
( (Atom)event.xclient.data.l[0] == wmDeleteWindow ) ) {
#ifndef NDEBUG
cerr << "Delete message" << endl;
#endif
m_display->setQuit( true );
};
break;
case Expose:
#ifndef NDEBUG
cerr << "Expose event" << endl;
#endif
while ( XCheckTypedWindowEvent( m_display->get(), m_window,
Expose, &event ) );
paintEvent( true );
break;
case KeyPress:
#ifndef NDEBUG
cerr << "Key event" << endl;
#endif
keyEvent( event.xkey );
break;
default:
break;
};
}
void X11Window::paintEvent( bool x11Event ) throw (Error)
{
#ifndef NDEBUG
cerr << "X11Window::paintEvent( " << x11Event << " )" << endl;
#endif
m_painter->paint( x11Event );
}
void X11Window::keyEvent( XKeyEvent &xkey ) throw (Error)
{
switch ( xkey.keycode ) {
case 0x09: // escape
case 0x41: // space
#ifndef NDEBUG
cerr << "Escape/Space -> Quit!" << endl;
#endif
m_display->setQuit( true );
break;
default:
break;
};
}
VALUE X11Window::registerRubyClass( VALUE module )
{
cRubyClass = rb_define_class_under( module, "X11Window", rb_cObject );
rb_define_singleton_method( cRubyClass, "new",
RUBY_METHOD_FUNC( wrapNew ), 4 );
rb_define_method( cRubyClass, "title=",
RUBY_METHOD_FUNC( wrapSetTitle ), 1 );
rb_define_method( cRubyClass, "width",
RUBY_METHOD_FUNC( wrapWidth ), 0 );
rb_define_method( cRubyClass, "height",
RUBY_METHOD_FUNC( wrapHeight ), 0 );
rb_define_method( cRubyClass, "resize",
RUBY_METHOD_FUNC( wrapResize ), 2 );
rb_define_method( cRubyClass, "show",
RUBY_METHOD_FUNC( wrapShow ), 0 );
rb_define_method( cRubyClass, "close",
RUBY_METHOD_FUNC( wrapClose ), 0 );
return cRubyClass;
}
void X11Window::deleteRubyObject( void *ptr )
{
delete (X11WindowPtr *)ptr;
}
VALUE X11Window::wrapNew( VALUE rbClass, VALUE rbDisplay, VALUE rbX11Output,
VALUE rbWidth, VALUE rbHeight )
{
VALUE retVal = Qnil;
try {
checkStruct( rbDisplay, X11Display::cRubyClass );
X11DisplayPtr *display;
dataGetStruct( rbDisplay, X11Display::cRubyClass, X11DisplayPtr,
display );
checkStruct( rbX11Output, X11Output::cRubyClass );
X11OutputPtr *x11Output;
dataGetStruct( rbX11Output, X11Output::cRubyClass, X11OutputPtr,
x11Output );
X11WindowPtr ptr
( new X11Window( *display, (*x11Output)->painter(),
NUM2INT( rbWidth ), NUM2INT( rbHeight ) ) );
retVal = Data_Wrap_Struct( rbClass, 0, X11Window::deleteRubyObject,
new X11WindowPtr( ptr ) );
} catch ( std::exception &e ) {
rb_raise( rb_eRuntimeError, "%s", e.what() );
};
return retVal;
}
VALUE X11Window::wrapSetTitle( VALUE rbSelf, VALUE rbTitle )
{
X11WindowPtr *self; Data_Get_Struct( rbSelf, X11WindowPtr, self );
(*self)->setTitle( StringValuePtr( rbTitle ) );
return rbTitle;
}
VALUE X11Window::wrapWidth( VALUE rbSelf )
{
X11WindowPtr *self; Data_Get_Struct( rbSelf, X11WindowPtr, self );
return INT2NUM( (*self)->width() );
}
VALUE X11Window::wrapHeight( VALUE rbSelf )
{
X11WindowPtr *self; Data_Get_Struct( rbSelf, X11WindowPtr, self );
return INT2NUM( (*self)->height() );
}
VALUE X11Window::wrapResize( VALUE rbSelf, VALUE rbWidth, VALUE rbHeight )
{
try {
X11WindowPtr *self; Data_Get_Struct( rbSelf, X11WindowPtr, self );
(*self)->resize( NUM2INT( rbWidth ), NUM2INT( rbHeight ) );
} catch ( std::exception &e ) {
rb_raise( rb_eRuntimeError, "%s", e.what() );
};
return rbSelf;
}
VALUE X11Window::wrapShow( VALUE rbSelf )
{
try {
X11WindowPtr *self; Data_Get_Struct( rbSelf, X11WindowPtr, self );
(*self)->show();
} catch ( std::exception &e ) {
rb_raise( rb_eRuntimeError, "%s", e.what() );
};
return rbSelf;
}
VALUE X11Window::wrapClose( VALUE rbSelf )
{
X11WindowPtr *self; Data_Get_Struct( rbSelf, X11WindowPtr, self );
(*self)->close();
return rbSelf;
}