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/***************************************************************************
paneltabbar.cpp - description
-------------------
begin : Sun Jun 2 2002
copyright : (C) 2002 by Shie Erlich & Rafi Yanai
email :
***************************************************************************/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#include "paneltabbar.h"
#include "Panel/listpanel.h"
#include "krusaderview.h"
#include "krslots.h"
#include "defaults.h"
#include <kaction.h>
#include <klocale.h>
#include <kshortcut.h>
#include <qevent.h>
#include <qwidgetstack.h>
#include <qfontmetrics.h>
#include <qtooltip.h>
#include <kdebug.h>
#define DISPLAY(X) (X.isLocalFile() ? X.path() : X.prettyURL())
PanelTabBar::PanelTabBar(QWidget *parent): QTabBar(parent), _maxTabLength(0) {
_panelActionMenu = new KActionMenu( i18n("Panel"), this );
setAcceptDrops(true);
insertAction(krNewTab);
insertAction(krDupTab);
insertAction(krPreviousTab);
insertAction(krNextTab);
insertAction(krCloseTab);
krCloseTab->setEnabled(false); //can't close a single tab
setShape(QTabBar::TriangularBelow);
}
void PanelTabBar::mousePressEvent( QMouseEvent* e ) {
QTab* clickedTab = selectTab( e->pos() );
if( !clickedTab ) { // clicked on nothing ...
QTabBar::mousePressEvent(e);
return;
}
// else implied
setCurrentTab( clickedTab );
emit changePanel(dynamic_cast<PanelTab*>(clickedTab)->panel);
if ( e->button() == Qt::RightButton ) {
// show the popup menu
_panelActionMenu->popup( e->globalPos() );
} else
if ( e->button() == Qt::LeftButton ) { // we need to change tabs
// first, find the correct panel to load
int id = currentTab();
ListPanel *listpanel = dynamic_cast<PanelTab*>(tab(id))->panel;
emit changePanel(listpanel);
} else
if (e->button() == Qt::MidButton) { // close the current tab
emit closeCurrentTab();
}
QTabBar::mousePressEvent(e);
}
void PanelTabBar::insertAction( KAction* action ) {
_panelActionMenu->insert( action );
}
int PanelTabBar::addPanel(ListPanel *panel, bool setCurrent ) {
int newId = addTab(new PanelTab(squeeze(DISPLAY(panel->virtualPath())), panel));
// make sure all tabs lengths are correct
for (int i=0; i<count(); i++)
tabAt(i)->setText(squeeze(DISPLAY(dynamic_cast<PanelTab*>(tabAt(i))->panel->virtualPath()), i));
layoutTabs();
if( setCurrent )
setCurrentTab(newId);
// enable close-tab action
if (count()>1) {
krCloseTab->setEnabled(true);
}
connect(dynamic_cast<PanelTab*>(tab(newId))->panel, SIGNAL(pathChanged(ListPanel*)),
this, SLOT(updateTab(ListPanel*)));
return newId;
}
ListPanel* PanelTabBar::removeCurrentPanel(ListPanel* &panelToDelete) {
int id = currentTab();
ListPanel *oldp = dynamic_cast<PanelTab*>(tab(id))->panel; // old panel to kill later
disconnect(dynamic_cast<PanelTab*>(tab(id))->panel);
removeTab(tab(id));
for (int i=0; i<count(); i++)
tabAt(i)->setText(squeeze(DISPLAY(dynamic_cast<PanelTab*>(tabAt(i))->panel->virtualPath()), i));
layoutTabs();
// setup current one
id = currentTab();
ListPanel *p = dynamic_cast<PanelTab*>(tab(id))->panel;
// disable close action?
if (count()==1) {
krCloseTab->setEnabled(false);
}
panelToDelete = oldp;
return p;
}
void PanelTabBar::updateTab(ListPanel *panel) {
// find which is the correct tab
for (int i=0; i<count(); i++) {
if (dynamic_cast<PanelTab*>(tabAt(i))->panel == panel) {
tabAt(i)->setText(squeeze(DISPLAY(panel->virtualPath()),i));
break;
}
}
}
void PanelTabBar::duplicateTab() {
int id = currentTab();
emit newTab(dynamic_cast<PanelTab*>(tab(id))->panel->virtualPath());
}
void PanelTabBar::closeTab() {
emit closeCurrentTab();
}
QString PanelTabBar::squeeze(QString text, int index) {
QString originalText = text;
QString lastGroup = krConfig->group();
krConfig->setGroup( "Look&Feel" );
bool longNames = krConfig->readBoolEntry( "Fullpath Tab Names", _FullPathTabNames );
krConfig->setGroup( lastGroup );
if( !longNames )
{
while( text.endsWith( "/" ) )
text.truncate( text.length() -1 );
if( text.isEmpty() || text.endsWith(":") )
text += "/";
else
{
QString shortName;
if( text.contains( ":/" ) )
shortName = text.left( text.find( ":/" ) ) + ":";
shortName += text.mid( text.findRev( "/" ) + 1 );
text = shortName;
}
if( index >= 0 )
setToolTip( index, originalText );
index = -1;
}
QFontMetrics fm(fontMetrics());
// set the real max length
_maxTabLength = (static_cast<QWidget*>(parent())->width()-(6*fm.width("W")))/fm.width("W");
// each tab gets a fair share of the max tab length
int _effectiveTabLength = _maxTabLength / (count() == 0 ? 1 : count());
int labelWidth = fm.width("W")*_effectiveTabLength;
int textWidth = fm.width(text);
if (textWidth > labelWidth) {
// start with the dots only
QString squeezedText = "...";
int squeezedWidth = fm.width(squeezedText);
// estimate how many letters we can add to the dots on both sides
int letters = text.length() * (labelWidth - squeezedWidth) / textWidth / 2;
if (labelWidth < squeezedWidth) letters=1;
squeezedText = text.left(letters) + "..." + text.right(letters);
squeezedWidth = fm.width(squeezedText);
if (squeezedWidth < labelWidth) {
// we estimated too short
// add letters while text < label
do {
letters++;
squeezedText = text.left(letters) + "..." + text.right(letters);
squeezedWidth = fm.width(squeezedText);
} while (squeezedWidth < labelWidth);
letters--;
squeezedText = text.left(letters) + "..." + text.right(letters);
} else if (squeezedWidth > labelWidth) {
// we estimated too long
// remove letters while text > label
do {
letters--;
squeezedText = text.left(letters) + "..." + text.right(letters);
squeezedWidth = fm.width(squeezedText);
} while (letters && squeezedWidth > labelWidth);
}
if( index >= 0 )
setToolTip( index, originalText );
if (letters < 5) {
// too few letters added -> we give up squeezing
//return text;
return squeezedText;
} else {
return squeezedText;
}
} else {
if( index >= 0 )
removeToolTip( index );
return text;
};
}
void PanelTabBar::resizeEvent ( QResizeEvent *e ) {
QTabBar::resizeEvent( e );
for (int i=0; i<count(); i++)
tabAt(i)->setText(squeeze(DISPLAY(dynamic_cast<PanelTab*>(tabAt(i))->panel->virtualPath()), i));
layoutTabs();
}
void PanelTabBar::dragEnterEvent(QDragEnterEvent *e) {
QTab *t = selectTab(e->pos());
if (!t) return;
if (tab(currentTab()) != t) {
setCurrentTab(t);
emit changePanel(dynamic_cast<PanelTab*>(t)->panel);
}
}
void PanelTabBar::dragMoveEvent(QDragMoveEvent *e) {
QTab *t = selectTab(e->pos());
if (!t) return;
if (tab(currentTab()) != t) {
setCurrentTab(t);
emit changePanel(dynamic_cast<PanelTab*>(t)->panel);
}
}
// -----------------------------> PanelTab <----------------------------
PanelTab::PanelTab(const QString & text): QTab(text) {}
PanelTab::PanelTab(const QString & text, ListPanel *p): QTab(text), panel(p) {}
#include "paneltabbar.moc"
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