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/***************************************************************************
* Copyright (C) 2003 by Sébastien Laoût *
* slaout@linux62.org *
* *
* 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 2 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, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include <kapplication.h>
#include <qdesktopwidget.h>
#include <qpopupmenu.h>
#include <qrect.h>
#include "popupmenu.h"
#if KDE_IS_VERSION( 3, 2, 90 ) // KDE 3.3.x
#define MENU_Y_OFFSET 1
#else
#define MENU_Y_OFFSET 2
#endif
/** NOTE 1 : This implementation forget BIDI support (eg RightToLeft languages
* expect to try to popup the menu first at bottom-right
* and not at bottom-left.
* NOTE 2 : This implementation do not support virtual desktop with more than
* one screen. Pehrapse QPopupMenu solve it by itself but I can't
* try : I have only one screen.
* => Have those methods directly in Qt (or KDE) would be a great benefits !
*/
void PopupMenu::execAtRectCenter(QPopupMenu &menu, const QRect &rect)
{
// Compute point where to popup the menu that should be centered :
QSize menuSize = menu.sizeHint();
QSize menuHalfSize = menuSize / 2;
QPoint point = rect.center() - QPoint(menuHalfSize.width(), menuHalfSize.height());
// Very strange : menu.exec(point) do that clipping (but not when exec() by mouse !!! ) :
// If menu is partially out of the screen, move it :
/* int desktopWidth = kapp->desktop()->width();
int desktopHeight = kapp->desktop()->height();
if (point.x() + menuSize.width() > desktopWidth) point.setX(desktopWidth - menuSize.width());
if (point.y() + menuSize.height() - 2 > desktopHeight) point.setY(desktopHeight - menuSize.height() + 2);
if (point.x() < 0) point.setX(0);
if (point.y() < 0) point.setY(0);*/
// And show the menu :
menu.exec( point + QPoint(0, MENU_Y_OFFSET) ); // Stupid offset (Qt bug ?) : we should show the menus 2 pixels more bottom !
}
// Needed on debug to draw the passed global rectangle :
//#include <qpainter.h>
//#include <qpen.h>
void PopupMenu::execAtRectBottom(QPopupMenu &menu, const QRect &rect, bool centered)
{
QSize menuSize = menu.sizeHint() - QSize(1, 1); // A size is [1..n] => We want two lengths that are [0..(n-1)]
int desktopWidth = kapp->desktop()->width(); // to be compared/added/substracted with QRects/QPoints...
int desktopHeight = kapp->desktop()->height();
/** Paint the rect on the screen (desktop).
* For test purpose only (to be sure the passed rectangle is right).
* Comment this (and the qpainter and qpen includes) for a non-debug version.
*/
/*QPainter paint(kapp->desktop(), kapp->desktop(), true);
paint.setPen( QPen(Qt::black, 1) );
paint.drawRect(rect);
paint.end();*/
// rect.bottomLeft() and rect.bottomRight() must be VISIBLE :
// show the menu 1 pixel more BOTTOM (add 1 in Y) :
QPoint point = rect.bottomLeft() + QPoint(0, 1);
if (point.y() + menuSize.height() < desktopHeight) { // First try at bottom
if (centered)
point = QPoint( rect.center().x() - menuSize.width() / 2, point.y() );
else if (point.x() + menuSize.width() < desktopWidth) // Then, try at bottom-left
/*point is already set*/;
else // Overwise, at bottom-right
point = rect.bottomRight() - QPoint(menuSize.width(), - 1);
// Idem : rect.topLeft() and rect.topRight() must be VISIBLE :
// show the menu 1 pixel more TOP (substract 1 in Y) :
} else { // Overwize, try at top
if (centered)
point = QPoint( rect.center().x() - menuSize.width() / 2, rect.top() - menuSize.height() - 1 );
else if (point.x() + menuSize.width() < desktopWidth) // Then, try at top-left
point = rect.topLeft() - QPoint(0, menuSize.height() + 1);
else // Overwise, at top-right
point = rect.topRight() - QPoint(menuSize.width(), menuSize.height() + 1);
}
// No need to clip : it will be done by menu.exec(...)
// And show the menu :
menu.exec( point + QPoint(0, MENU_Y_OFFSET) ); // Stupid offset (Qt bug ?) : we should show the menus 2 pixels more bottom !
}
void PopupMenu::execAtRectRight(QPopupMenu &menu, const QRect &rect, bool centered)
{
QSize menuSize = menu.sizeHint() - QSize(1, 1); // A size is [1..n] => We want two lengths that are [0..(n-1)]
int desktopWidth = kapp->desktop()->width(); // to be compared/added/substracted with QRects/QPoints...
int desktopHeight = kapp->desktop()->height();
/** Paint the rect on the screen (desktop).
* For test purpose only (to be sure the passed rectangle is right).
* Comment this (and the qpainter and qpen includes) for a non-debug version.
*/
/*QPainter paint(kapp->desktop(), kapp->desktop(), true);
paint.setPen( QPen(Qt::black, 1) );
paint.drawRect(rect);
paint.end();*/
// rect.topRight() and rect.topLeft() must be VISIBLE :
// show the menu 1 pixel more RIGHT (add 1 in X) :
QPoint point = rect.topRight() + QPoint(1, 0);
if (point.x() + menuSize.width() < desktopWidth) { // First try at right
if (centered)
point = QPoint( point.x(), rect.center().y() - menuSize.height() / 2 );
else if (point.y() + menuSize.height() < desktopHeight) // Then, try at top-right
/*point is already set*/;
else // Overwise, at top-left
point = rect.bottomRight() - QPoint(-1, menuSize.height());
// Idem : rect.topLeft() and rect.bottomLeft() must be VISIBLE :
// show the menu 1 pixel more LEFT (substract 1 in X) :
} else { // Overwize, try at top
if (centered)
point = QPoint( rect.left() - menuSize.width() - 1, rect.center().y() - menuSize.height() / 2 );
else if (point.y() + menuSize.height() < desktopHeight) // Then, try at top-left
point = rect.topLeft() - QPoint(menuSize.width() + 1, 0);
else // Overwise, at bottom-left
point = rect.bottomLeft() - QPoint(menuSize.width() + 1, menuSize.height());
}
// No need to clip : it will be done by menu.exec(...)
// And show the menu :
menu.exec( point + QPoint(0, MENU_Y_OFFSET) ); // Stupid offset (Qt bug ?) : we should show the menus 2 pixels more bottom !
}
// # i n c l u d e " p o p u p m e n u . m o c " // Comment this if you don't compile PopupMenuTest class
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