src/keyboard.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2003 by Sébastien Laoût                                 *
   3  *   slaout@linux62.org                                                    *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20
  21 #include <kapplication.h> // it define Q_WS_X11
  22
  23 #include "keyboard.h"
  24
  25 /* This file contain modified code from klistbox.cpp
  26  */
  27
  28 // ShiftMask, ControlMask and Mod1Mask are defined in <X11/X.h>
  29 #if defined Q_WS_X11 && ! defined K_WS_QTONLY
  30 #include <X11/Xlib.h> // schroder
  31 #include <QX11Info>
  32 #endif
  33
  34 void Keyboard::pressedKeys(bool &shiftPressed, bool &controlPressed)
  35 {
  36 #if defined Q_WS_X11 && ! defined K_WS_QTONLY
  37         Window root;
  38         Window child;
  39         int root_x, root_y, win_x, win_y;
  40         uint keybstate;
  41         XQueryPointer( QX11Info::display(), QX11Info::appRootWindow(), &root, &child,
  42                        &root_x, &root_y, &win_x, &win_y, &keybstate );
  43
  44         shiftPressed   = keybstate & ShiftMask;
  45         controlPressed = keybstate & ControlMask;
  46 #endif
  47 }
  48
  49 /** Same code as pressedKeys(...) but for shift key only
  50   */
  51 bool Keyboard::shiftPressed()
  52 {
  53 #if defined Q_WS_X11 && ! defined K_WS_QTONLY
  54         Window root;
  55         Window child;
  56         int root_x, root_y, win_x, win_y;
  57         uint keybstate;
  58         XQueryPointer( QX11Info::display(), QX11Info::appRootWindow(), &root, &child,
  59                        &root_x, &root_y, &win_x, &win_y, &keybstate );
  60
  61         return (keybstate & ShiftMask) != 0;
  62 #else
  63         return false;
  64 #endif
  65 }
  66
  67 /** Same code as pressedKeys(...) but for control key only
  68   */
  69 bool Keyboard::controlPressed()
  70 {
  71 #if defined Q_WS_X11 && ! defined K_WS_QTONLY
  72         Window root;
  73         Window child;
  74         int root_x, root_y, win_x, win_y;
  75         uint keybstate;
  76         XQueryPointer( QX11Info::display(), QX11Info::appRootWindow(), &root, &child,
  77                        &root_x, &root_y, &win_x, &win_y, &keybstate );
  78
  79         return (keybstate & ControlMask) != 0;
  80 #else
  81         return false;
  82 #endif
  83 }
  84
  85 /** Return if Alt key is pressed
  86   */
  87 bool Keyboard::altPressed()
  88 {
  89 #if defined Q_WS_X11 && ! defined K_WS_QTONLY
  90         Window root;
  91         Window child;
  92         int root_x, root_y, win_x, win_y;
  93         uint keybstate;
  94         XQueryPointer( QX11Info::display(), QX11Info::appRootWindow(), &root, &child,
  95                        &root_x, &root_y, &win_x, &win_y, &keybstate );
  96
  97         return (keybstate & Mod1Mask) != 0;
  98 #else
  99         return false;
 100 #endif
 101 }
 102
 103 /*******************
 104  * What does KDE 3.1 and later:
 105  * FIXME: Use this function in KDE 4
 106  *        (I wasn't knowing it by creating this class)
 107
 108   / *
 109    * Returns the currently pressed keyboard modifiers (e.g. shift, control, etc.)
 110    * Usually you simply want to test for those in key events, in which case
 111    * QKeyEvent::state() does the job (or QKeyEvent::key() to
 112    * notice when a modifier is pressed alone).
 113    * But it can be useful to query for the status of the modifiers at another moment
 114    * (e.g. some KDE apps do that upon a drop event).
 115    * @return the keyboard modifiers
 116    * @since 3.1
 117     /
 118 uint KApplication::keyboardModifiers()
 119 {
 120     Window root;
 121     Window child;
 122     int root_x, root_y, win_x, win_y;
 123     uint keybstate;
 124     XQueryPointer( QX11Info::display(), QX11Info::appRootWindow(), &root, &child,
 125                    &root_x, &root_y, &win_x, &win_y, &keybstate );
 126     return keybstate & 0x00ff;
 127 }
 128
 129  *
 130  *******************/