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Move the InputBox from SuperKaramba to Plasma.

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svn path=/trunk/KDE/kdebase/workspace/plasma/lib/; revision=638393
This commit is contained in:
Alexander Wiedenbruch 2007-03-01 19:58:19 +00:00
parent 302bfadf77
commit 585852a0de
6 changed files with 387 additions and 1 deletions
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6
CMakeLists.txt
View File

@ -9,6 +9,9 @@ set(plasma_LIB_SRCS
runner.cpp
theme.cpp
dataengine.cpp
widgets/widget.cpp
widgets/lineedit.cpp
)
kde4_automoc(${plasma_LIB_SRCS})
@ -30,5 +33,8 @@ install( FILES
theme.h
interface.h
dataengine.h
widgets/widget.h
widgets/lineedit.h
DESTINATION ${INCLUDE_INSTALL_DIR}/plasma )

2
datavisualization.h
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@ -36,7 +36,7 @@ class DataVisualization : QObject
virtual ~DataVisualization();
public slots:
void data(const DataSource::Data&) = 0;
virtual void data(const DataSource::Data&) = 0;
private:
class Private;

246
widgets/lineedit.cpp Normal file
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@ -0,0 +1,246 @@
/****************************************************************************
* Copyright (c) 2005 Alexander Wiedenbruch <mail@wiedenbruch.de>
* Copyright (c) 2007 Matt Broadstone <mbroadst@gmail.com>
*
* This file is part of SuperKaramba.
*
* SuperKaramba 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.
*
* SuperKaramba 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 SuperKaramba; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
****************************************************************************/
#include <QPainter>
#include <QStyleOptionGraphicsItem>
#include <QGraphicsSceneMouseEvent>
#include <kdebug.h>
#include "lineedit.h"
#include "lineedit.moc"
class LineEdit::Private
{
public:
Private()
{
}
~Private()
{
}
QFont m_font;
QColor m_bgColor;
QColor m_fgColor;
QColor m_fontColor;
QColor m_selectedTextColor;
QColor m_selectionColor;
QString m_text;
QTextLayout m_textLayout;
double m_hscroll;
int m_cursorPos;
bool m_cursorVisible;
QTimer m_cursorTimer;
};
LineEdit::LineEdit(Plasma::Applet* a, QRectF size)
: Widget(a, size),
d(new Private)
{
d->m_bgColor = QColor(200, 200, 200);
d->m_fgColor = QColor(60, 60, 60);
setFlags(QGraphicsItem::ItemIsFocusable);
setAcceptedMouseButtons(Qt::LeftButton);
connect(&d->m_cursorTimer, SIGNAL(timeout()), (QObject*)this, SLOT(blinkCursor()));
d->m_cursorTimer.start(1000);
}
LineEdit::~LineEdit()
{
delete d;
}
/*
Some code in this method is copied from QLineEdit.
Copyright (C) 1992-2006 Trolltech ASA. All rights reserved.
*/
void LineEdit::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
QWidget *widget)
{
Q_UNUSED(option);
Q_UNUSED(widget);
painter->setPen(d->m_fgColor);
QBrush oldBrush = painter->brush();
painter->setBrush(d->m_bgColor);
painter->drawRect(boundingRect());
painter->setBrush(oldBrush);
if(d->m_textLayout.lineCount() == 0)
return;
QTextLine line = d->m_textLayout.lineAt(0);
if(!line.isValid())
return;
int widthUsed = qRound(line.naturalTextWidth()) + 1 + 5;
QRectF innerRect(boundingRect().x() + 5, boundingRect().y() + 2,
boundingRect().width() - 10, boundingRect().height() - 4);
painter->setClipRect(innerRect);
QPointF topLeft = innerRect.topLeft();
double curPos = line.cursorToX(d->m_cursorPos);
if (5 + widthUsed <= innerRect.width())
d->m_hscroll = 0;
else if (curPos - d->m_hscroll >= innerRect.width())
d->m_hscroll = curPos - innerRect.width() + 1;
else if (curPos - d->m_hscroll < 0)
d->m_hscroll = curPos;
else if (widthUsed - d->m_hscroll < innerRect.width())
d->m_hscroll = widthUsed - innerRect.width();
topLeft.rx() -= d->m_hscroll;
painter->setPen(d->m_fontColor);
d->m_textLayout.draw(painter, topLeft, QVector<QTextLayout::FormatRange>(),
innerRect);
if(hasFocus() && d->m_cursorVisible)
d->m_textLayout.drawCursor(painter, topLeft, d->m_cursorPos);
}
void LineEdit::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
QTextLine line = d->m_textLayout.lineAt(0);
QPoint pos = mapFromParent(event->pos()).toPoint() - boundingRect().topLeft().toPoint();
d->m_cursorPos = line.xToCursor(pos.x() - 5 + d->m_hscroll);
d->m_cursorVisible = true;
update();
}
void LineEdit::focusOutEvent(QFocusEvent *event)
{
Q_UNUSED(event);
d->m_cursorTimer.stop();
update();
}
void LineEdit::blinkCursor()
{
d->m_cursorVisible = !d->m_cursorVisible;
update();
}
void LineEdit::keyPressEvent(QKeyEvent *event)
{
bool append = true;
switch(event->key())
{
case Qt::Key_Backspace:
if(d->m_cursorPos > 0)
{
d->m_text.remove(d->m_cursorPos-1, 1);
d->m_cursorPos--;
}
append = false;
break;
case Qt::Key_Delete:
d->m_text.remove(d->m_cursorPos, 1);
append = false;
break;
case Qt::Key_Left:
d->m_cursorPos--;
append = false;
break;
case Qt::Key_Right:
d->m_cursorPos++;
append = false;
break;
case Qt::Key_Home:
d->m_cursorPos = 0;
append = false;
break;
case Qt::Key_End:
d->m_cursorPos = d->m_text.length();
append = false;
break;
case Qt::Key_Enter:
case Qt::Key_Return:
append = false;
break;
}
if(append)
{
d->m_text.insert(d->m_cursorPos, event->text());
d->m_cursorPos += event->text().length();
}
if(d->m_cursorPos < 0)
d->m_cursorPos = 0;
if(d->m_cursorPos > d->m_text.length())
d->m_cursorPos = d->m_text.length();
d->m_textLayout.setText(d->m_text);
d->m_textLayout.setFont(d->m_font);
d->m_textLayout.beginLayout();
QTextLine line = d->m_textLayout.createLine();
line.setLineWidth(m_boundingBox.width());
line.setPosition(QPointF(0, 0));
d->m_textLayout.endLayout();
d->m_cursorVisible = true;
update();
}
void LineEdit::setValue(QString text)
{
d->m_text = text;
d->m_textLayout.setText(d->m_text);
d->m_textLayout.setFont(d->m_font);
d->m_textLayout.beginLayout();
QTextLine line = d->m_textLayout.createLine();
line.setLineWidth(m_boundingBox.width());
line.setPosition(QPointF(0, 0));
d->m_textLayout.endLayout();
update();
}
QString LineEdit::getStringValue() const
{
return d->m_text;
}

62
widgets/lineedit.h Normal file
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@ -0,0 +1,62 @@
/****************************************************************************
* Copyright (c) 2005 Alexander Wiedenbruch <mail@wiedenbruch.de>
* Copyright (c) 2007 Matt Broadstone <mbroadst@gmail.com>
*
* This file is part of SuperKaramba.
*
* SuperKaramba 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.
*
* SuperKaramba 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 SuperKaramba; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
****************************************************************************/
#ifndef LINEEDIT_H
#define LINEEDIT_H
#include <QTextLayout>
#include <QTimer>
#include <QGraphicsItem>
#include <applet.h>
#include "widget.h"
class KDE_EXPORT LineEdit : public QObject, public Widget
{
Q_OBJECT
public:
LineEdit(Plasma::Applet *a, QRectF size);
~LineEdit();
void paint(QPainter *painter,
const QStyleOptionGraphicsItem *option, QWidget *widget);
void setValue(QString text);
QString getStringValue() const;
void setInputFocus();
void clearInputFocus();
void keyPressEvent(QKeyEvent *event);
void mousePressEvent(QGraphicsSceneMouseEvent *event);
protected:
void focusOutEvent(QFocusEvent *event);
private Q_SLOTS:
void blinkCursor();
private:
class Private;
Private *const d;
};
#endif

34
widgets/widget.cpp Normal file
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@ -0,0 +1,34 @@
/*
* Copyright (C) 2007 by Alexander Wiedenbruch <mail@wiedenbruch.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License version 2 as
* published by the Free Software Foundation
*
* 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 Library 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 "widget.h"
Widget::Widget(QGraphicsItem *parent, QRectF size)
: QGraphicsItem(parent),
m_boundingBox(size)
{
}
Widget::~Widget()
{
}
QRectF Widget::boundingRect() const
{
return m_boundingBox;
}

38
widgets/widget.h Normal file
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@ -0,0 +1,38 @@
/*
* Copyright (C) 2007 by Alexander Wiedenbruch <mail@wiedenbruch.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License version 2 as
* published by the Free Software Foundation
*
* 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 Library 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.
*/
#ifndef WIDGET_H_
#define WIDGET_H_
#include <QGraphicsItem>
#include <kdemacros.h>
class KDE_EXPORT Widget : public QGraphicsItem
{
public:
Widget(QGraphicsItem *parent, QRectF size);
virtual ~Widget();
QRectF boundingRect() const;
protected:
QRectF m_boundingBox;
};
#endif