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util.cpp
325 lines (264 loc) · 7.75 KB
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util.cpp
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/*
Copyright 2011-2012 Heikki Holstila <heikki.holstila@gmail.com>
This file is part of FingerTerm.
FingerTerm 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.
FingerTerm 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 FingerTerm. If not, see <http://www.gnu.org/licenses/>.
*/
#include "qplatformdefs.h"
#include <QtCore>
#include <QtGui>
#include <QDBusInterface>
#include <QGuiApplication>
#include <QQuickView>
#include <QDebug>
#include "mainwindow.h"
#include "terminal.h"
#include "util.h"
#include "textrender.h"
#include "version.h"
#ifdef HAVE_FEEDBACK
#include <QFeedbackEffect>
#endif
Util::Util(QSettings *settings, QObject *parent) :
QObject(parent),
iAllowGestures(false),
newSelection(true),
iSettings(settings),
iWindow(0),
iRenderer(0)
{
swipeModeSet = false;
swipeAllowed = true;
connect(QGuiApplication::clipboard(), SIGNAL(dataChanged()), this, SIGNAL(clipboardOrSelectionChanged()));
}
Util::~Util()
{
// clear the notifications on quit
clearNotifications();
}
void Util::setWindow(QQuickView* win)
{
iWindow = dynamic_cast<MainWindow*>(win);
if(!iWindow)
qFatal("invalid main window");
connect(iWindow, SIGNAL(focusChanged(bool)), this, SLOT(onMainWinFocusChanged(bool)));
}
void Util::setWindowTitle(QString title)
{
iCurrentWinTitle = title;
iWindow->setTitle(title);
emit windowTitleChanged();
}
QString Util::currentWindowTitle()
{
return iCurrentWinTitle;
}
void Util::onMainWinFocusChanged(bool in)
{
if (in) {
clearNotifications();
//disable & re-enable swiping when window gains focus (workaround for an "auto mode" bug)
updateSwipeLock(false);
updateSwipeLock(true);
}
}
void Util::windowMinimize()
{
iWindow->minimize();
}
void Util::openNewWindow()
{
QProcess::startDetached("/usr/bin/fingerterm");
}
void Util::updateSwipeLock(bool suggestedState)
{
Q_UNUSED(suggestedState)
}
QString Util::configPath()
{
if(!iSettings)
return QString();
QFileInfo f(iSettings->fileName());
return f.path();
}
QVariant Util::settingsValue(QString key)
{
if(!iSettings)
return QVariant();
return iSettings->value(key);
}
void Util::setSettingsValue(QString key, QVariant value)
{
if(iSettings)
iSettings->setValue(key, value);
}
QString Util::versionString()
{
return PROGRAM_VERSION;
}
int Util::uiFontSize()
{
return 12;
}
void Util::keyPressFeedback()
{
if( !settingsValue("ui/keyPressFeedback").toBool() )
return;
#ifdef HAVE_FEEDBACK
QFeedbackEffect::playThemeEffect(QFeedbackEffect::PressWeak);
#endif
}
void Util::keyReleaseFeedback()
{
if( !settingsValue("ui/keyPressFeedback").toBool() )
return;
// TODO: check what's more comfortable, only press, or press and release
#ifdef HAVE_FEEDBACK
QFeedbackEffect::playThemeEffect(QFeedbackEffect::ReleaseWeak);
#endif
}
void Util::bellAlert()
{
if(!iWindow)
return;
if( settingsValue("general/visualBell").toBool() ) {
emit visualBell();
}
}
void Util::clearNotifications()
{
}
void Util::mousePress(float eventX, float eventY) {
if(!iAllowGestures)
return;
dragOrigin = QPointF(eventX, eventY);
newSelection = true;
}
void Util::mouseMove(float eventX, float eventY) {
QPointF eventPos(eventX, eventY);
if(!iAllowGestures)
return;
if(settingsValue("ui/dragMode")=="scroll") {
dragOrigin = scrollBackBuffer(eventPos, dragOrigin);
}
else if(settingsValue("ui/dragMode")=="select" && iRenderer) {
selectionHelper(eventPos);
}
}
void Util::mouseRelease(float eventX, float eventY) {
QPointF eventPos(eventX, eventY);
const int reqDragLength = 140;
if(!iAllowGestures)
return;
if(settingsValue("ui/dragMode")=="gestures") {
int xdist = qAbs(eventPos.x() - dragOrigin.x());
int ydist = qAbs(eventPos.y() - dragOrigin.y());
if(eventPos.x() < dragOrigin.x()-reqDragLength && xdist > ydist*2)
doGesture(PanLeft);
else if(eventPos.x() > dragOrigin.x()+reqDragLength && xdist > ydist*2)
doGesture(PanRight);
else if(eventPos.y() > dragOrigin.y()+reqDragLength && ydist > xdist*2)
doGesture(PanDown);
else if(eventPos.y() < dragOrigin.y()-reqDragLength && ydist > xdist*2)
doGesture(PanUp);
}
else if(settingsValue("ui/dragMode")=="scroll") {
scrollBackBuffer(eventPos, dragOrigin);
}
else if(settingsValue("ui/dragMode")=="select" && iRenderer) {
selectionHelper(eventPos);
selectionFinished();
}
}
void Util::selectionHelper(QPointF scenePos)
{
int yCorr = iRenderer->fontDescent();
QPoint start(qRound((dragOrigin.x()+2)/iRenderer->fontWidth()),
qRound((dragOrigin.y()+yCorr)/iRenderer->fontHeight()));
QPoint end(qRound((scenePos.x()+2)/iRenderer->fontWidth()),
qRound((scenePos.y()+yCorr)/iRenderer->fontHeight()));
if (start != end) {
iTerm->setSelection(start, end);
newSelection = false;
}
}
QPointF Util::scrollBackBuffer(QPointF now, QPointF last)
{
if(!iTerm)
return last;
int xdist = qAbs(now.x() - last.x());
int ydist = qAbs(now.y() - last.y());
int fontSize = settingsValue("ui/fontSize").toInt();
int lines = ydist / fontSize;
if(lines > 0 && now.y() < last.y() && xdist < ydist*2) {
iTerm->scrollBackBufferFwd(lines);
last = QPointF(now.x(), last.y() - lines * fontSize);
} else if(lines > 0 && now.y() > last.y() && xdist < ydist*2) {
iTerm->scrollBackBufferBack(lines);
last = QPointF(now.x(), last.y() + lines * fontSize);
}
return last;
}
void Util::doGesture(Util::PanGesture gesture)
{
if(!iTerm)
return;
if( gesture==PanLeft ) {
emit gestureNotify(settingsValue("gestures/panLeftTitle").toString());
iTerm->putString(settingsValue("gestures/panLeftCommand").toString(), true);
}
else if( gesture==PanRight ) {
emit gestureNotify(settingsValue("gestures/panRightTitle").toString());
iTerm->putString(settingsValue("gestures/panRightCommand").toString(), true);
}
else if( gesture==PanDown ) {
emit gestureNotify(settingsValue("gestures/panDownTitle").toString());
iTerm->putString(settingsValue("gestures/panDownCommand").toString(), true);
}
else if( gesture==PanUp ) {
emit gestureNotify(settingsValue("gestures/panUpTitle").toString());
iTerm->putString(settingsValue("gestures/panUpCommand").toString(), true);
}
}
void Util::notifyText(QString text)
{
emit gestureNotify(text);
}
void Util::copyTextToClipboard(QString str)
{
QClipboard *cb = QGuiApplication::clipboard();
cb->clear();
cb->setText(str);
}
bool Util::terminalHasSelection()
{
return !iTerm->selection().isNull();
}
bool Util::canPaste()
{
QClipboard *cb = QGuiApplication::clipboard();
return !cb->text().isEmpty();
}
void Util::selectionFinished()
{
emit clipboardOrSelectionChanged();
}
//static
bool Util::charIsHexDigit(QChar ch)
{
if (ch.isDigit()) // 0-9
return true;
else if (ch.toLatin1() >= 65 && ch.toLatin1() <= 70) // A-F
return true;
else if (ch.toLatin1() >= 97 && ch.toLatin1() <= 102) // a-f
return true;
return false;
}