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/*
* Copyright (c) 2010 Kevin Smith
* Licensed under the GNU General Public License v3.
* See Documentation/Licenses/GPLv3.txt for more information.
*/
#include "QtChatTabs.h"
#include <algorithm>
#include <QCloseEvent>
#include <QDesktopWidget>
#include <QtGlobal>
#include <QTabWidget>
#include <QLayout>
#include <QTabBar>
#include <QApplication>
namespace Swift {
QtChatTabs::QtChatTabs() : QWidget() {
setWindowIcon(QIcon(":/logo-chat-16.png"));
tabs_ = new QtTabWidget(this);
#if QT_VERSION >= 0x040500
/*For Macs, change the tab rendering.*/
tabs_->setDocumentMode(true);
/*Closable tabs are only in Qt4.5 and later*/
tabs_->setTabsClosable(true);
connect(tabs_, SIGNAL(tabCloseRequested(int)), this, SLOT(handleTabCloseRequested(int)));
#else
#warning Qt 4.5 or later is needed. Trying anyway, some things will be disabled.
#endif
QVBoxLayout *layout = new QVBoxLayout;
layout->setSpacing(0);
layout->setContentsMargins(0, 3, 0, 0);
layout->addWidget(tabs_);
setLayout(layout);
//resize(400, 300);
}
void QtChatTabs::closeEvent(QCloseEvent* event) {
//Hide first to prevent flickering as each tab is removed.
hide();
for (int i = tabs_->count() - 1; i >= 0; i--) {
tabs_->widget(i)->close();
}
event->accept();
}
void QtChatTabs::addTab(QtTabbable* tab) {
QSizePolicy policy = sizePolicy();
/* Chat windows like to grow - don't let them */
setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
tabs_->addTab(tab, tab->windowTitle());
connect(tab, SIGNAL(titleUpdated()), this, SLOT(handleTabTitleUpdated()));
connect(tab, SIGNAL(windowClosing()), this, SLOT(handleTabClosing()));
connect(tab, SIGNAL(windowOpening()), this, SLOT(handleWidgetShown()));
connect(tab, SIGNAL(wantsToActivate()), this, SLOT(handleWantsToActivate()));
connect(tab, SIGNAL(requestNextTab()), this, SLOT(handleRequestedNextTab()));
connect(tab, SIGNAL(requestPreviousTab()), this, SLOT(handleRequestedPreviousTab()));
setSizePolicy(policy);
}
void QtChatTabs::handleWidgetShown() {
QtTabbable* widget = qobject_cast<QtTabbable*>(sender());
if (!widget) {
return;
}
checkForFirstShow();
if (tabs_->indexOf(widget) >= 0) {
return;
}
addTab(widget);
show();
}
void QtChatTabs::handleWantsToActivate() {
QtTabbable* widget = qobject_cast<QtTabbable*>(sender());
Q_ASSERT(widget);
//Un-minimize and bring to front.
setWindowState(windowState() & ~Qt::WindowMinimized);
setWindowState(windowState() | Qt::WindowActive);
show();
widget->show();
tabs_->setCurrentWidget(widget);
widget->setFocus();
activateWindow();
}
void QtChatTabs::handleTabClosing() {
QWidget* widget = qobject_cast<QWidget*>(sender());
if (!widget) {
return;
}
int index = tabs_->indexOf(widget);
if (index < 0) {
return;
}
tabs_->removeTab(index);
if (tabs_->count() == 0) {
hide();
}
handleTabTitleUpdated(tabs_->currentWidget());
}
void QtChatTabs::handleRequestedPreviousTab() {
int newIndex = tabs_->currentIndex() - 1;
tabs_->setCurrentIndex(newIndex >= 0 ? newIndex : tabs_->count() - 1);
}
void QtChatTabs::handleRequestedNextTab() {
int newIndex = tabs_->currentIndex() + 1;
tabs_->setCurrentIndex(newIndex < tabs_->count() ? newIndex : 0);
}
void QtChatTabs::handleTabCloseRequested(int index) {
QWidget* widget = tabs_->widget(index);
widget->close();
}
void QtChatTabs::handleTabTitleUpdated() {
QWidget* widget = qobject_cast<QWidget*>(sender());
handleTabTitleUpdated(widget);
}
void QtChatTabs::handleTabTitleUpdated(QWidget* widget) {
if (!widget) {
return;
}
QtTabbable* tabbable = qobject_cast<QtTabbable*>(widget);
int index = tabs_->indexOf(widget);
if (index < 0) {
return;
}
tabs_->setTabText(index, widget->windowTitle());
QColor tabTextColor;
bool flash = false;
switch (tabbable->getWidgetAlertState()) {
case QtTabbable::WaitingActivity : flash = true; tabTextColor = QColor(255, 0, 0); break;
case QtTabbable::ImpendingActivity : tabTextColor = QColor(0, 255, 0); break;
default : tabTextColor = QColor();
}
tabs_->tabBar()->setTabTextColor(index, tabTextColor);
if (widget == tabs_->currentWidget()) {
setWindowTitle(widget->windowTitle());
}
if (flash) {
#ifndef SWIFTEN_PLATFORM_MACOSX
QApplication::alert(this, 3000);
#endif
}
}
void QtChatTabs::resizeEvent(QResizeEvent*) {
emit geometryChanged();
}
void QtChatTabs::moveEvent(QMoveEvent*) {
emit geometryChanged();
}
void QtChatTabs::checkForFirstShow() {
if (!isVisible()) {
showMinimized();
}
}
}
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Swift