src/popupmenu.h

   1 //Added by qt3to4:
   2 #include <Q3PopupMenu>
   3 /***************************************************************************
   4  *   Copyright (C) 2003 by Sébastien Laoût                                 *
   5  *   slaout@linux62.org                                                    *
   6  *                                                                         *
   7  *   This program is free software; you can redistribute it and/or modify  *
   8  *   it under the terms of the GNU General Public License as published by  *
   9  *   the Free Software Foundation; either version 2 of the License, or     *
  10  *   (at your option) any later version.                                   *
  11  *                                                                         *
  12  *   This program is distributed in the hope that it will be useful,       *
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  15  *   GNU General Public License for more details.                          *
  16  *                                                                         *
  17  *   You should have received a copy of the GNU General Public License     *
  18  *   along with this program; if not, write to the                         *
  19  *   Free Software Foundation, Inc.,                                       *
  20  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  21  ***************************************************************************/
  22
  23 #ifndef POPUPMENU_H
  24 #define POPUPMENU_H
  25
  26 class Q3PopupMenu;
  27 class QRect;
  28
  29 /** QPopupMenu/KPopupMenu doesn't provide metod to exec a menu
  30   * at a given rectangle !
  31   * eg, popup at bottom of a rectangle, and at top if not possible...
  32   * @author Sébastien Laoût
  33   */
  34 namespace PopupMenu
  35 {
  36         /** Show the popup menu centered into rect.
  37           */
  38         void execAtRectCenter(Q3PopupMenu &menu, const QRect &rect);
  39
  40         /** Show the popup menu at left-bottom of rect, or at right-bottom
  41           * if not possible (not enought place).
  42           * If it isn't possible to show it at bottom, it will be shown on
  43           * top of rect (top-left if possible, if not it will be top-right).
  44           * If center is true, it will try to horizontaly center the popup with
  45           * rect, so it will try two positions : bottom center and then top center.
  46           */
  47         void execAtRectBottom(Q3PopupMenu &menu, const QRect &rect, bool centered = false);
  48
  49         /** Idem execAtRectBottom but on the right or left sides,
  50           * prior aligned with the top of the rect, and at the bottom
  51           * if not possible.
  52           * If center is true, it will try to vertically center the popup with
  53           * rect, so it will try two positions : right center and then left center.
  54           */
  55         void execAtRectRight(Q3PopupMenu &menu, const QRect &rect, bool centered = false);
  56 }
  57
  58 /** Test window of PopupMenu methods.
  59   * Just include popupmenu.h in a main Qt application and call
  60   * new PopupMenuTest();
  61   * Click the window for more explications.
  62   * Resize it to test particular cases.
  63   * (Comment the class, if it isn't done yet to do not compile it :-) ).
  64   * @author Sébastien Laoût
  65   */
  66
  67 /*****
  68
  69 #include <qwidget.h>
  70 #include <qpopupmenu.h>
  71 #include <qpainter.h>
  72 #include <qpen.h>
  73
  74 c l a s s   P o p u p M e n u T e s t   :   p u b l i c   Q W i d g e t
  75 {
  76   Q _ O B J E C T
  77   p u b l i c:
  78         PopupMenuTest()
  79          : QWidget(0)
  80         {
  81                 setCaption("Click to test!");
  82                 show();
  83         }
  84
  85         void mousePressEvent(QMouseEvent *event)
  86         {
  87                 QPopupMenu menu;
  88                 QRect rect( mapToGlobal(QPoint(0,0)), size() );
  89
  90                 menu.insertItem("A test of popup menu!");
  91                 menu.insertItem("This menu contain some items");
  92                 menu.insertItem("Resize the window as you want and:");
  93                 menu.insertItem("- click : execAtRectCenter");
  94                 menu.insertItem("- right click : execAtRectBottom");
  95                 menu.insertItem("- middle click : execAtRectRight");
  96                 menu.insertItem("- Shift + right click : execAtRectBottom centered");
  97                 menu.insertItem("- Shift + middle click : execAtRectRight centered");
  98
  99                 if (event->button() & Qt::LeftButton)
 100                         PopupMenu::execAtRectCenter(menu, rect);
 101                 else if ((event->button() & Qt::RightButton) && (event->state() & Qt::ShiftButton))
 102                         PopupMenu::execAtRectBottom(menu, rect, true);
 103                 else if (event->button() & Qt::RightButton)
 104                         PopupMenu::execAtRectBottom(menu, rect);
 105                 else if ((event->button() & Qt::MidButton) && (event->state() & Qt::ShiftButton))
 106                         PopupMenu::execAtRectRight(menu, rect, true);
 107                 else if (event->button() & Qt::MidButton)
 108                         PopupMenu::execAtRectRight(menu, rect);
 109         }
 110
 111         void paintEvent(QPaintEvent*)
 112         {
 113                 QPainter paint(this);
 114                 paint.setPen(paletteBackgroundColor());
 115                 paint.drawRect(rect());
 116                 paint.drawWinFocusRect(rect());
 117                 paint.setPen( QPen(Qt::black, 1) );
 118                 paint.drawLine( rect().topLeft(), rect().bottomRight() );
 119                 paint.drawLine( rect().topRight(), rect().bottomLeft() );
 120         }
 121 };
 122
 123 *****/
 124
 125 #endif // POPUPMENU_H