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668 lines
24 KiB
668 lines
24 KiB
/* This file is part of the KDE project
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Copyright (C) 2005, Gary Cramblitt <garycramblitt@comcast.net>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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// TQt includes
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#include <tqsplitter.h>
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#include <tqdockwindow.h>
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#include <tqdockarea.h>
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#include <tqevent.h>
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#include <tqcursor.h>
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#include <tqobjectlist.h>
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#include <tqwidgetlist.h>
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#include <tqlabel.h>
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#include <tqtooltip.h>
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// KDE includes
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#include <klocale.h>
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#include <kglobal.h>
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#include <kapplication.h>
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#include <kmainwindow.h>
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#include <kaction.h>
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#include <kdebug.h>
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// KKbdAccessExtensions includes
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#include "kkbdaccessextensions.h"
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// TODO: See eventFilter method.
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//#include "kkbdaccessextensions.moc"
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class KPanelKbdSizerIcon : public TQCursor
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{
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public:
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KPanelKbdSizerIcon() :
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TQCursor(TQt::SizeAllCursor),
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isActive(false)
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{
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currentPos = TQPoint(-1, -1);
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}
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~KPanelKbdSizerIcon()
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{
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hide();
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}
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void show(const TQPoint p) {
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if (!isActive) {
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originalPos = TQCursor::pos();
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kapp->setOverrideCursor(*this);
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isActive = true;
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}
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if (p != pos())
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setPos(p);
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currentPos = p;
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}
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void hide() {
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if (isActive) {
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kapp->restoreOverrideCursor();
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TQCursor::setPos(originalPos);
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}
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isActive = false;
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}
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void setShape(int shayp)
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{
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if (shayp != shape()) {
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// Must restore and override to get the icon to refresh.
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if (isActive) kapp->restoreOverrideCursor();
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TQCursor::setShape((Qt::CursorShape)shayp);
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if (isActive) kapp->setOverrideCursor(*this);
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}
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}
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// Return the difference between a position and where icon is supposed to be.
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TQSize delta(const TQPoint p)
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{
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TQPoint d = p - currentPos;
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return TQSize(d.x(), d.y());
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}
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// Return the difference between where the icon is currently positioned and where
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// it is supposed to be.
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TQSize delta() { return delta(pos()); }
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// True if the sizing icon is visible.
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bool isActive;
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private:
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// Icon's current position.
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TQPoint currentPos;
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// Mouse cursor's original position when icon is shown.
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TQPoint originalPos;
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};
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class KKbdAccessExtensionsPrivate
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{
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public:
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KKbdAccessExtensionsPrivate() :
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fwdAction(0),
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revAction(0),
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accessKeysAction(0),
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panel(0),
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handleNdx(0),
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icon(0),
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stepSize(10),
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accessKeyLabels(0) {};
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~KKbdAccessExtensionsPrivate()
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{
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delete icon;
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// TODO: This crashes, but should delete in the event that KMainWindow is not deleted.
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if (accessKeyLabels) {
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accessKeyLabels->setAutoDelete(false);
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delete accessKeyLabels;
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}
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}
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// Action that starts panel sizing (defaults to F8), forward and reverse;
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KAction* fwdAction;
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KAction* revAction;
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// Action that starts access keys.
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KAction* accessKeysAction;
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// The splitter or dockwindow currently being sized. If 0, sizing is not in progress.
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TQWidget* panel;
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// Index of current handle of the panel. When panel is a TQDockWindow:
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// 1 = size horizontally
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// 2 = size vertically
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uint handleNdx;
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// Sizing icon.
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KPanelKbdSizerIcon* icon;
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// Sizing increment.
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int stepSize;
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// List of the access key TQLabels. If not 0, access keys are onscreen.
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TQPtrList<TQLabel>* accessKeyLabels;
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// Pointer to the KMainWindow.
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KMainWindow* mainWindow;
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};
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KKbdAccessExtensions::KKbdAccessExtensions(KMainWindow* parent, const char* name) :
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TQObject(parent, name)
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{
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// kdDebug() << "KKbdAccessExtensions::KKbdAccessExtensions: running." << endl;
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d = new KKbdAccessExtensionsPrivate;
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d->mainWindow = parent;
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d->fwdAction = new KAction(i18n("Resize Panel Forward"), KShortcut("F8"),
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0, 0, parent->actionCollection(), "resize_panel_forward");
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d->revAction = new KAction(i18n("Resize Panel Reverse"), KShortcut("Shift+F8"),
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0, 0, parent->actionCollection(), "resize_panel_reverse");
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d->accessKeysAction = new KAction(i18n("Access Keys"), KShortcut("Alt+F8"),
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0, 0, parent->actionCollection(), "access_keys");
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// "Disable" the shortcuts so we can see them in eventFilter.
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d->fwdAction->setEnabled(false);
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d->revAction->setEnabled(false);
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d->accessKeysAction->setEnabled(false);
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d->icon = new KPanelKbdSizerIcon();
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kapp->installEventFilter(this);
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}
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KKbdAccessExtensions::~KKbdAccessExtensions()
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{
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kapp->removeEventFilter(this);
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if (d->panel) exitSizing();
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delete d;
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}
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int KKbdAccessExtensions::stepSize() const { return d->stepSize; }
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void KKbdAccessExtensions::setStepSize(int s) { d->stepSize = s; }
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bool KKbdAccessExtensions::eventFilter( TQObject *o, TQEvent *e )
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{
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if ( e->type() == TQEvent::KeyPress ) {
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// TODO: This permits only a single-key shortcut. For example, Alt+S,R would not work.
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// If user configures a multi-key shortcut, it is undefined what will happen here.
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// It would be better to handle these as KShortcut activate() signals, but the problem
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// is that once a TQDockWindow is undocked and has focus, the KShortcut activate() signals
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// don't fire anymore.
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KShortcut fwdSc = d->fwdAction->shortcut();
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KShortcut revSc = d->revAction->shortcut();
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KShortcut accessKeysSc = d->accessKeysAction->shortcut();
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TQKeyEvent* kev = dynamic_cast<TQKeyEvent *>(e);
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KKey k = KKey(kev);
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KShortcut sc = KShortcut(k);
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// kdDebug() << "KKbdAccessExtensions::eventFilter: Key press " << sc << endl;
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if (!d->accessKeyLabels) {
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if (sc == fwdSc) {
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nextHandle();
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return true;
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}
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if (sc == revSc) {
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prevHandle();
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return true;
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}
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}
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if (d->panel) {
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if (k == KKey(Key_Escape))
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exitSizing();
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else
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resizePanelFromKey(kev->key(), kev->state());
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// Eat the key.
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return true;
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}
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if (sc == accessKeysSc && !d->panel) {
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if (d->accessKeyLabels) {
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delete d->accessKeyLabels;
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d->accessKeyLabels = 0;
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} else
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displayAccessKeys();
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return true;
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}
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if (d->accessKeyLabels) {
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if (k == KKey(Key_Escape)) {
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delete d->accessKeyLabels;
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d->accessKeyLabels = 0;
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} else
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handleAccessKey(kev);
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return true;
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}
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return false;
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}
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else if (d->icon->isActive && e->type() == TQEvent::MouseButtonPress) {
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exitSizing();
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return true;
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}
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else if (d->accessKeyLabels && e->type() == TQEvent::MouseButtonPress) {
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delete d->accessKeyLabels;
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d->accessKeyLabels = 0;
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return true;
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}
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/* else if (e->type() == TQEvent::MouseMove && d->icon->isActive) {
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// Lock mouse cursor down.
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showIcon();
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dynamic_cast<TQMouseEvent *>(e)->accept();
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return true;
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}*/
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else if (e->type() == TQEvent::MouseMove && d->icon->isActive && d->panel) {
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// Resize according to mouse movement.
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TQMouseEvent* me = dynamic_cast<TQMouseEvent *>(e);
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TQSize s = d->icon->delta();
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int dx = s.width();
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int dy = s.height();
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resizePanel(dx, dy, me->state());
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me->accept();
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showIcon();
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return true;
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}
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else if (e->type() == TQEvent::Resize && d->panel && TQT_BASE_OBJECT(o) == d->panel) {
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// TODO: This doesn't always work.
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showIcon();
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}
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return false;
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}
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TQWidgetList* KKbdAccessExtensions::getAllPanels()
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{
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TQWidgetList* allWidgets = kapp->allWidgets();
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TQWidgetList* allPanels = new TQWidgetList;
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TQWidget* widget = allWidgets->first();
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while (widget) {
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if (widget->isVisible()) {
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if (::tqqt_cast<TQSplitter*>( widget )) {
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// Only size TQSplitters with at least two handles (there is always one hidden).
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if (dynamic_cast<TQSplitter *>(widget)->sizes().count() >= 2)
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allPanels->append(widget);
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} else if (::tqqt_cast<TQDockWindow*>( widget )) {
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if (dynamic_cast<TQDockWindow *>(widget)->isResizeEnabled()) {
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// kdDebug() << "KKbdAccessExtensions::getAllPanels: TQDockWindow = " << widget->name() << endl;
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allPanels->append(widget);
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}
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}
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}
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widget = allWidgets->next();
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}
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delete allWidgets;
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return allPanels;
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}
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void KKbdAccessExtensions::nextHandle()
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{
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TQWidget* panel = d->panel;
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// See if current panel has another handle. If not, find next panel.
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if (panel) {
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bool advance = true;
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d->handleNdx++;
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if (::tqqt_cast<TQSplitter*>( panel ))
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advance = (d->handleNdx >= dynamic_cast<TQSplitter *>(panel)->sizes().count());
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else
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// Undocked windows have only one "handle" (center).
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advance = (d->handleNdx > 2 || !dynamic_cast<TQDockWindow *>(panel)->area());
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if (advance) {
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TQWidgetList* allWidgets = getAllPanels();
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allWidgets->findRef(panel);
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panel = 0;
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if (allWidgets->current()) panel = allWidgets->next();
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delete allWidgets;
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d->handleNdx = 1;
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}
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} else {
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// Find first panel.
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TQWidgetList* allWidgets = getAllPanels();
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panel = allWidgets->first();
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delete allWidgets;
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d->handleNdx = 1;
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}
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d->panel = panel;
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if (panel)
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showIcon();
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else
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exitSizing();
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}
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void KKbdAccessExtensions::prevHandle()
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{
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TQWidget* panel = d->panel;
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// See if current panel has another handle. If not, find previous panel.
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if (panel) {
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bool rewind = true;
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d->handleNdx--;
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rewind = (d->handleNdx < 1);
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if (rewind) {
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TQWidgetList* allWidgets = getAllPanels();
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allWidgets->findRef(panel);
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panel = 0;
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if (allWidgets->current()) panel = allWidgets->prev();
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delete allWidgets;
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if (panel) {
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if (::tqqt_cast<TQSplitter*>( panel ))
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d->handleNdx = dynamic_cast<TQSplitter *>(panel)->sizes().count() - 1;
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else {
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if (dynamic_cast<TQDockWindow *>(panel)->area())
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d->handleNdx = 2;
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else
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d->handleNdx = 1;
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}
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}
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}
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} else {
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// Find last panel.
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TQWidgetList* allWidgets = getAllPanels();
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panel = allWidgets->last();
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delete allWidgets;
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if (panel) {
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if (::tqqt_cast<TQSplitter*>( panel ))
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d->handleNdx = dynamic_cast<TQSplitter *>(panel)->sizes().count() - 1;
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else {
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if (dynamic_cast<TQDockWindow *>(panel)->area())
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d->handleNdx = 2;
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else
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d->handleNdx = 1;
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}
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}
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}
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d->panel = panel;
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if (panel)
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showIcon();
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else
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exitSizing();
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}
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void KKbdAccessExtensions::exitSizing()
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{
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// kdDebug() << "KKbdAccessExtensions::exiting sizing mode." << endl;
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hideIcon();
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d->handleNdx = 0;
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d->panel = 0;
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}
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void KKbdAccessExtensions::showIcon()
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{
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if (!d->panel) return;
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TQPoint p;
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// kdDebug() << "KKbdAccessExtensions::showIcon: topLevelWidget = " << d->panel->topLevelWidget()->name() << endl;
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if (::tqqt_cast<TQSplitter*>( d->panel )) {
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TQSplitter* splitter = dynamic_cast<TQSplitter *>(d->panel);
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int handleNdx = d->handleNdx - 1;
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TQValueList<int> sizes = splitter->sizes();
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// kdDebug() << "KKbdAccessExtensions::showIcon: sizes = " << sizes << endl;
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if (splitter->orientation() == Qt::Horizontal) {
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d->icon->setShape(TQt::SizeHorCursor);
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p.setX(sizes[handleNdx] + (splitter->handleWidth() / 2));
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p.setY(splitter->height() / 2);
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} else {
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d->icon->setShape(TQt::SizeVerCursor);
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p.setX(splitter->width() / 2);
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p.setY(sizes[handleNdx] + (splitter->handleWidth() / 2));
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}
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// kdDebug() << "KKbdAccessExtensions::showIcon: p = " << p << endl;
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p = splitter->mapToGlobal(p);
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// kdDebug() << "KKbdAccessExtensions::showIcon: mapToGlobal = " << p << endl;
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} else {
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TQDockWindow* dockWindow = dynamic_cast<TQDockWindow *>(d->panel);
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p = dockWindow->pos();
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if (dockWindow->area()) {
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// kdDebug() << "KKbdAccessExtensions::showIcon: pos = " << p << " of window = " << dockWindow->parentWidget()->name() << endl;
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p = dockWindow->parentWidget()->mapTo(dockWindow->topLevelWidget(), p);
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// kdDebug() << "KKbdAccessExtensions::showIcon: mapTo = " << p << " of window = " << dockWindow->topLevelWidget()->name() << endl;
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// TODO: How to get the handle width?
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if (d->handleNdx == 1) {
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d->icon->setShape(TQt::SizeHorCursor);
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if (dockWindow->area()->orientation() == Qt::Vertical) {
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if (dockWindow->area()->handlePosition() == TQDockArea::Normal)
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// Handle is to the right of the dock window.
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p.setX(p.x() + dockWindow->width());
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// else Handle is to the left of the dock window.
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} else
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// Handle is to the right of the dock window.
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p.setX(p.x() + dockWindow->width());
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p.setY(p.y() + (dockWindow->height() / 2));
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} else {
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d->icon->setShape(TQt::SizeVerCursor);
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p.setX(p.x() + (dockWindow->width() / 2));
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if (dockWindow->area()->orientation() == Qt::Vertical)
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// Handle is below the dock window.
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p.setY(p.y() + dockWindow->height());
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else {
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if (dockWindow->area()->handlePosition() == TQDockArea::Normal)
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// Handle is below the dock window.
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p.setY(p.y() + dockWindow->height());
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// else Handle is above the dock window.
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}
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}
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p = dockWindow->topLevelWidget()->mapToGlobal(p);
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} else {
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d->icon->setShape(TQt::SizeAllCursor);
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p = TQPoint(dockWindow->width() / 2, dockWindow->height() / 2);
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p = dockWindow->mapToGlobal(p); // Undocked. Position in center of window.
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}
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}
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// kdDebug() << "KKbdAccessExtensions::showIcon: show(p) = " << p << endl;
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d->icon->show(p);
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}
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void KKbdAccessExtensions::hideIcon()
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{
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d->icon->hide();
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}
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void KKbdAccessExtensions::resizePanel(int dx, int dy, int state)
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{
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int adj = dx + dy;
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if (adj == 0) return;
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// kdDebug() << "KKbdAccessExtensions::resizePanel: panel = " << d->panel->name() << endl;
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if (::tqqt_cast<TQSplitter*>( d->panel )) {
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TQSplitter* splitter = dynamic_cast<TQSplitter *>(d->panel);
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int handleNdx = d->handleNdx - 1;
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TQValueList<int> sizes = splitter->sizes();
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// kdDebug() << "KKbdAccessExtensions::resizePanel: before sizes = " << sizes << endl;
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sizes[handleNdx] = sizes[handleNdx] + adj;
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// kdDebug() << "KKbdAccessExtensions::resizePanel: setSizes = " << sizes << endl;
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splitter->setSizes(sizes);
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TQApplication::postEvent(splitter, new TQEvent(TQEvent::LayoutHint));
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} else {
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// TODO: How to get the handle width?
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TQDockWindow* dockWindow = dynamic_cast<TQDockWindow *>(d->panel);
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if (dockWindow->area()) {
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// kdDebug() << "KKbdAccessExtensions::resizePanel: fixedExtent = " << dockWindow->fixedExtent() << endl;
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TQSize fe = dockWindow->fixedExtent();
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if (d->handleNdx == 1) {
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// When vertically oriented and dock area is on right side of screen, pressing
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// left arrow increases size.
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if (dockWindow->area()->orientation() == Qt::Vertical &&
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dockWindow->area()->handlePosition() == TQDockArea::Reverse) adj = -adj;
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int w = fe.width();
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if (w < 0) w = dockWindow->width();
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w = w + adj;
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if (w > 0 ) dockWindow->setFixedExtentWidth(w);
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} else {
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// When horizontally oriented and dock area is at bottom of screen,
|
|
// pressing up arrow increases size.
|
|
if (dockWindow->area()->orientation() == Qt::Horizontal &&
|
|
dockWindow->area()->handlePosition() == TQDockArea::Reverse) adj = -adj;
|
|
int h = fe.height();
|
|
if (h < 0) h = dockWindow->height();
|
|
h = h + adj;
|
|
if (h > 0) dockWindow->setFixedExtentHeight(h);
|
|
}
|
|
dockWindow->updateGeometry();
|
|
TQApplication::postEvent(dockWindow->area(), new TQEvent(TQEvent::LayoutHint));
|
|
// kdDebug() << "KKbdAccessExtensions::resizePanel: fixedExtent = " << dockWindow->fixedExtent() << endl;
|
|
} else {
|
|
if (state == TQt::ShiftButton) {
|
|
TQSize s = dockWindow->size();
|
|
s.setWidth(s.width() + dx);
|
|
s.setHeight(s.height() + dy);
|
|
dockWindow->resize(s);
|
|
} else {
|
|
TQPoint p = dockWindow->pos();
|
|
p.setX(p.x() + dx);
|
|
p.setY(p.y() + dy);
|
|
dockWindow->move(p);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void KKbdAccessExtensions::resizePanelFromKey(int key, int state)
|
|
{
|
|
// kdDebug() << "KPanelKdbSizer::resizePanelFromKey: key = " << key << " state = " << state << endl;
|
|
if (!d->panel) return;
|
|
int dx = 0;
|
|
int dy = 0;
|
|
int stepSize = d->stepSize;
|
|
switch (key) {
|
|
case TQt::Key_Left: dx = -stepSize; break;
|
|
case TQt::Key_Right: dx = stepSize; break;
|
|
case TQt::Key_Up: dy = -stepSize; break;
|
|
case TQt::Key_Down: dy = stepSize; break;
|
|
case TQt::Key_Prior: dy = -5 * stepSize; break;
|
|
case TQt::Key_Next: dy = 5 * stepSize; break;
|
|
}
|
|
int adj = dx + dy;
|
|
// kdDebug() << "KKbdAccessExtensions::resizePanelFromKey: adj = " << adj << endl;
|
|
if (adj != 0)
|
|
resizePanel(dx, dy, state);
|
|
else {
|
|
if (key == TQt::Key_Enter && ::tqqt_cast<TQDockWindow*>( d->panel )) {
|
|
TQDockWindow* dockWindow = dynamic_cast<TQDockWindow *>(d->panel);
|
|
if (dockWindow->area())
|
|
dockWindow->undock();
|
|
else
|
|
dockWindow->dock();
|
|
}
|
|
}
|
|
showIcon();
|
|
}
|
|
|
|
void KKbdAccessExtensions::displayAccessKeys()
|
|
{
|
|
// Build a list of valid access keys that don't collide with shortcuts.
|
|
TQString availableAccessKeys = "ABCDEFGHIJKLMNOPTQRSTUVWXYZ01234567890";
|
|
TQPtrList<KXMLGUIClient> allClients = d->mainWindow->factory()->clients();
|
|
TQPtrListIterator<KXMLGUIClient> it( allClients );
|
|
KXMLGUIClient *client;
|
|
while( (client=it.current()) !=0 )
|
|
{
|
|
++it;
|
|
KActionPtrList actions = client->actionCollection()->actions();
|
|
for (int j = 0; j < (int)actions.count(); j++) {
|
|
KAction* action = actions[j];
|
|
KShortcut sc = action->shortcut();
|
|
for (int i = 0; i < (int)sc.count(); i++) {
|
|
KKeySequence seq = sc.seq(i);
|
|
if (seq.count() == 1) {
|
|
TQString s = seq.toString();
|
|
if (availableAccessKeys.contains(s))
|
|
availableAccessKeys.remove(s);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// Find all visible, focusable widgets and create a TQLabel for each. Don't exceed
|
|
// available list of access keys.
|
|
TQWidgetList* allWidgets = kapp->allWidgets();
|
|
TQWidget* widget = allWidgets->first();
|
|
int accessCount = 0;
|
|
int maxAccessCount = availableAccessKeys.length();
|
|
int overlap = 20;
|
|
TQPoint prevGlobalPos = TQPoint(-overlap, -overlap);
|
|
while (widget && (accessCount < maxAccessCount)) {
|
|
if (widget->isVisible() && widget->isFocusEnabled() ) {
|
|
TQRect r = widget->rect();
|
|
TQPoint p(r.x(), r.y());
|
|
// Don't display an access key if within overlap pixels of previous one.
|
|
TQPoint globalPos = widget->mapToGlobal(p);
|
|
TQPoint diffPos = globalPos - prevGlobalPos;
|
|
if (diffPos.manhattanLength() > overlap) {
|
|
accessCount++;
|
|
TQLabel* lab=new TQLabel(widget, "", widget, 0, TQt::WDestructiveClose);
|
|
lab->setPalette(TQToolTip::palette());
|
|
lab->setLineWidth(2);
|
|
lab->setFrameStyle(TQFrame::Box | TQFrame::Plain);
|
|
lab->setMargin(3);
|
|
lab->adjustSize();
|
|
lab->move(p);
|
|
if (!d->accessKeyLabels) {
|
|
d->accessKeyLabels = new TQPtrList<TQLabel>;
|
|
d->accessKeyLabels->setAutoDelete(true);
|
|
}
|
|
d->accessKeyLabels->append(lab);
|
|
prevGlobalPos = globalPos;
|
|
}
|
|
}
|
|
widget = allWidgets->next();
|
|
}
|
|
if (accessCount > 0) {
|
|
// Sort the access keys from left to right and down the screen.
|
|
TQValueList<KSortedLabel> sortedLabels;
|
|
for (int i = 0; i < accessCount; i++)
|
|
sortedLabels.append(KSortedLabel(d->accessKeyLabels->at(i)));
|
|
qHeapSort( sortedLabels );
|
|
// Assign access key labels.
|
|
for (int i = 0; i < accessCount; i++) {
|
|
TQLabel* lab = sortedLabels[i].label();
|
|
TQChar s = availableAccessKeys[i];
|
|
lab->setText(s);
|
|
lab->adjustSize();
|
|
lab->show();
|
|
}
|
|
}
|
|
}
|
|
|
|
// Handling of the HTML accesskey attribute.
|
|
bool KKbdAccessExtensions::handleAccessKey( const TQKeyEvent* ev )
|
|
{
|
|
// TQt interprets the keyevent also with the modifiers, and ev->text() matches that,
|
|
// but this code must act as if the modifiers weren't pressed
|
|
if (!d->accessKeyLabels) return false;
|
|
TQChar c;
|
|
if( ev->key() >= Key_A && ev->key() <= Key_Z )
|
|
c = 'A' + ev->key() - Key_A;
|
|
else if( ev->key() >= Key_0 && ev->key() <= Key_9 )
|
|
c = '0' + ev->key() - Key_0;
|
|
else {
|
|
// TODO fake XKeyEvent and XLookupString ?
|
|
// This below seems to work e.g. for eacute though.
|
|
if( ev->text().length() == 1 )
|
|
c = ev->text()[ 0 ];
|
|
}
|
|
if( c.isNull())
|
|
return false;
|
|
|
|
TQLabel* lab = d->accessKeyLabels->first();
|
|
while (lab) {
|
|
if (lab->text() == c) {
|
|
lab->buddy()->setFocus();
|
|
delete d->accessKeyLabels;
|
|
d->accessKeyLabels = 0;
|
|
return true;
|
|
}
|
|
lab = d->accessKeyLabels->next();
|
|
}
|
|
return false;
|
|
}
|
|
|
|
KSortedLabel::KSortedLabel(TQLabel* l) :
|
|
m_l(l) { }
|
|
|
|
KSortedLabel::KSortedLabel() :
|
|
m_l(0) { }
|
|
|
|
bool KSortedLabel::operator<( KSortedLabel l )
|
|
{
|
|
TQPoint p1 = m_l->mapToGlobal(m_l->pos());
|
|
TQPoint p2 = l.label()->mapToGlobal(l.label()->pos());
|
|
return (p1.y() < p2.y() || (p1.y() == p2.y() && p1.x() < p2.x()));
|
|
}
|