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/***************************************************************************
** xMultiLineFrame.cpp $Revision: 1.7 $ - $Name: V2-18 $
** QFrame for manipulating Multiple lines of text in a window
**
** Copyright (C) 1996 Joseph Croft <jcroft@unicomp.net>
**
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Library General Public
** License as published by the Free Software Foundation; either
** version 2 of the License, or (at your option) any later version.
**
** This library 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
** Library General Public License for more details.
**
** You should have received a copy of the GNU Library General Public
** License along with this library; if not, write to the Free
** Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
**
***************************************************************************/
#include <stdio.h>
#include "xMultiLineFrame.h"
static int dbg = 0;
xMultiLineFrame::xMultiLineFrame(xWidgetResInfo *pPRes, QWidget *pParent,
const char *pName,
int width, int height,
int maxLines) :
QFrame(pParent, pName)
{
QRect rectWin;
wdtRes = new xWidgetResInfo(pPRes, QString("multiline.frame"), QString("MultiLine.Frame"));
wdtPrv = new xWidgetResInfo(pPRes);
setDefPallet(this, wdtRes);
setDefFont(this, wdtRes);
setLineWidth(3);
setFrameStyle(QFrame::Panel | QFrame::Sunken);
pScrollBar = new xVertScrollBar(wdtRes, this);
pScrollBar->setTracking(TRUE);
pWin = new xMultiLineWin(wdtPrv, this, NULL, width, height, maxLines);
connect(pWin, SIGNAL(textSelected(QString)),
this, SLOT(haveTextSelection(QString)));
QFontMetrics fmWin = pWin->fontMetrics();
widthSB = (int)((float)fmWin.maxWidth() * 2.0);
rectWin = pWin->geometry();
pWin->move(widthSB, 0);
pScrollBar->setGeometry(0, 0, widthSB, (pWin->geometry()).height());
setSizeIncrement(fmWin.maxWidth(), fmWin.lineSpacing());
setMinimumSize(fmWin.maxWidth() * 10, fmWin.lineSpacing() * 3);
rectWin.setRight(rectWin.right() + widthSB);
setGeometry(rectWin);
connect(pWin, SIGNAL(changePageSize(int)), this, SLOT(changePageStep(int)));
connect(pWin, SIGNAL(linesUsedChanged(int)), this, SLOT(changeSBRange(int)));
connect(pScrollBar, SIGNAL(prevPage()), this, SLOT(gotoPrevPage()));
connect(pScrollBar, SIGNAL(nextPage()), this, SLOT(gotoNextPage()));
connect(pScrollBar, SIGNAL(prevLine()), this, SLOT(gotoPrevLine()));
connect(pScrollBar, SIGNAL(nextLine()), this, SLOT(gotoNextLine()));
connect(pScrollBar, SIGNAL(sliderMoved(int)), this, SLOT(gotoOffset(int)));
changePageStep(height);
}
xMultiLineFrame::~xMultiLineFrame()
{
if (pWin)
delete pWin;
if (pScrollBar)
delete pScrollBar;
}
/*
void xMultiLineFrame::reset()
{
pWin->reset();
}
*/
void xMultiLineFrame::resizeEvent(QResizeEvent *pEvt)
{
QSize s, sizeTW, sizeNewTW, sizeSB;
sizeSB = sizeTW = pEvt->size();
sizeTW.setWidth(sizeTW.width() - widthSB);
pWin->resize(sizeTW);
sizeNewTW = pWin->size();
if (sizeTW != sizeNewTW)
{
s = sizeNewTW;
s.setWidth(sizeNewTW.width() + widthSB);
resize(s);
}
sizeSB.setWidth(widthSB);
sizeSB.setHeight(pWin->size().height());
pScrollBar->resize(sizeSB);
}
void xMultiLineFrame::changeSBRange(int linesUsed)
{
if (dbg) fprintf(stdout, "xMultiLineFrame::changeLinesUsed(%d)\n", linesUsed);
if (dbg) fprintf(stdout, "xMultiLineFrame::changeLinesUsed():linesUsed = %d, pageStep = %d\n", linesUsed, (int)pScrollBar->pageStep());
if (linesUsed > pScrollBar->pageStep())
{
if (dbg) fprintf(stdout, "xMultiLineFrame::changeLinesUsed():Showing Scroll Bar:linesUsed = %d, pageStep = %d\n", linesUsed, (int)pScrollBar->pageStep());
pScrollBar->show();
pScrollBar->setRange(0, linesUsed - pScrollBar->pageStep());
pScrollBar->setValue(pWin->getPosition() - pScrollBar->pageStep() + 1);
}
else
{
if (dbg) fprintf(stdout, "xMultiLineFrame::changeLinesUsed):Hiding Scroll Bar:linesUsed = %d, pageStep = %d\n", linesUsed, (int)pScrollBar->pageStep());
pScrollBar->setRange(0, 0);
pScrollBar->show();
}
}
void xMultiLineFrame::changePageStep(int pageLength)
{
if (dbg) fprintf(stdout, "xMultiLineFrame::changePageStep(%d):Enter\n", pageLength);
if (dbg) fprintf(stdout, "xMultiLineFrame::changePageStep():linesUsed = %d\n", pWin->getLinesUsed());
pScrollBar->setSteps(1, pageLength);
if (pScrollBar->pageStep() > pWin->getLinesUsed())
{
pScrollBar->setRange(0, 0);
pScrollBar->show();
}
else
{
pScrollBar->setRange(0, pWin->getLinesUsed() - pScrollBar->pageStep());
pScrollBar->setValue(pWin->getPosition() - pScrollBar->pageStep() + 1);
pScrollBar->show();
}
}
void xMultiLineFrame::gotoOffset(int offset)
{
if (dbg) fprintf(stdout, "xMultiLineFrame::gotoOffset():offset = %d\n", offset);
if (dbg) fflush(stdout);
pWin->scrollToLine(offset);
if (dbg) fprintf(stdout, "xMultiLineFrame::gotoOffset():Exit\n");
if (dbg) fflush(stdout);
}
void xMultiLineFrame::gotoPrevPage()
{
pWin->scrollWindow(-(pScrollBar->pageStep()));
}
void xMultiLineFrame::gotoNextPage()
{
pWin->scrollWindow(pScrollBar->pageStep());
}
void xMultiLineFrame::gotoPrevLine()
{
pWin->scrollWindow(-1);
}
void xMultiLineFrame::gotoNextLine()
{
pWin->scrollWindow(1);
}
void xMultiLineFrame::haveTextSelection(QString str)
{
xMultiLineTextSelection msg;
if (name() == NULL || strlen(name()) == 0)
msg.winName = parent()->name();
else
msg.winName = name();
msg.text = str;
emit textSelected(msg);
}
xVertScrollBar::xVertScrollBar(xWidgetResInfo *pPRes, QWidget *pParent = NULL,
const char *pName = NULL) :
QScrollBar(QScrollBar::Vertical, pParent, pName)
{
wdtRes = new xWidgetResInfo(pPRes, QString("scrollbar"), QString("ScrollBar"));
setRange(0, 0);
setSteps(1, 1);
}
// void xMultiLineFrame::mouseDoubleClickEvent(QMouseEvent *pEvt)
// {
// pWin->mouseDoubleClickEvent(pEvt);
// }
#include "xMultiLineFrame.moc"
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