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Add thumbnails to kpdf

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svn path=/trunk/kdegraphics/kpdf/; revision=304042
This commit is contained in:
Albert Astals Cid 2004-04-15 18:36:43 +00:00
parent c7b1a19c0b
commit 26712f5c0e
9 changed files with 425 additions and 42 deletions
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2
kpdf/Makefile.am
View file

@ -42,7 +42,7 @@ shellrc_DATA = kpdf_shell.rc
kde_module_LTLIBRARIES = libkpdfpart.la
# the Part's source, library search path, and link libraries
libkpdfpart_la_SOURCES = QOutputDev.cpp QOutputDevPixmap.cpp QOutputDevKPrinter.cpp kpdf_canvas.cpp kpdf_part.cpp kpdf_pagewidget.cc part.ui
libkpdfpart_la_SOURCES = QOutputDev.cpp QOutputDevPixmap.cpp QOutputDevKPrinter.cpp kpdf_canvas.cpp kpdf_part.cpp kpdf_pagewidget.cc part.cpp thumbnail.cpp thumbnaillist.cpp
libkpdfpart_la_LDFLAGS = -module $(KDE_PLUGIN) $(all_libraries)
libkpdfpart_la_LIBADD = ../xpdf/libxpdf.la $(LIB_KPARTS) $(LIB_KFILE) $(LIB_KDEPRINT)
libkpdfpart_la_COMPILE_FIRST = ../aconf.h

86
kpdf/kpdf_part.cpp
View file

@ -26,6 +26,7 @@
#include "PDFDoc.h"
#include "XOutputDev.h"
#include "QOutputDevKPrinter.h"
#include "QOutputDevPixmap.h"
// #include "kpdf_canvas.h"
#include "kpdf_pagewidget.h"
@ -53,8 +54,7 @@ Part::Part(QWidget *parentWidget, const char *widgetName,
pdfpartview = new PDFPartView(parentWidget, widgetName);
connect(pdfpartview->pagesListBox, SIGNAL( clicked ( QListBoxItem * ) ),
this, SLOT( pageClicked ( QListBoxItem * ) ));
connect(pdfpartview, SIGNAL( clicked ( int ) ), this, SLOT( pageClicked ( int ) ));
m_outputDev = pdfpartview->outputdev;
m_outputDev->setAcceptDrops( true );
@ -166,7 +166,7 @@ void Part::slotGoToPage()
if ( m_doc )
{
bool ok = false;
int num = KInputDialog::getInteger(i18n("Go to Page"), i18n("Page:"), m_currentPage,
int num = KInputDialog::getInteger(i18n("Go to Page"), i18n("Page:"), m_currentPage+1,
1, m_doc->getNumPages(), 1, 10, &ok/*, _part->widget()*/);
if (ok)
goToPage( num );
@ -175,9 +175,9 @@ void Part::slotGoToPage()
void Part::goToPage( int page )
{
m_currentPage = page;
pdfpartview->pagesListBox->setCurrentItem(m_currentPage-1);
m_outputDev->setPage(m_currentPage);
m_currentPage = page-1;
pdfpartview->setCurrentItem(m_currentPage);
m_outputDev->setPage(m_currentPage+1);
updateActionPage();
}
@ -188,10 +188,7 @@ void Part::slotOpenUrlDropped( const KURL &url )
void Part::setFullScreen( bool fs )
{
if ( !fs )
pdfpartview->pagesListBox->show();
else
pdfpartview->pagesListBox->hide();
pdfpartview->showPageList(!fs);
}
@ -200,9 +197,9 @@ void Part::updateActionPage()
if ( m_doc )
{
m_firstPage->setEnabled(m_currentPage!=0);
m_lastPage->setEnabled(m_currentPage<m_doc->getNumPages());
m_lastPage->setEnabled(m_currentPage<m_doc->getNumPages()-1);
m_prevPage->setEnabled(m_currentPage!=0);
m_nextPage->setEnabled(m_currentPage<m_doc->getNumPages());
m_nextPage->setEnabled(m_currentPage<m_doc->getNumPages()-1);
}
else
{
@ -259,19 +256,16 @@ void Part::showScrollBars( bool show )
void Part::showMarkList( bool show )
{
if ( show )
pdfpartview->pagesListBox->show();
else
pdfpartview->pagesListBox->hide();
pdfpartview->showPageList(show);
}
void Part::slotGotoEnd()
{
if ( m_doc && m_doc->getNumPages() > 0 );
{
m_currentPage = m_doc->getNumPages();
m_outputDev->setPage(m_currentPage);
pdfpartview->pagesListBox->setCurrentItem(m_currentPage-1);
m_currentPage = m_doc->getNumPages()-1;
m_outputDev->setPage(m_currentPage+1);
pdfpartview->setCurrentItem(m_currentPage);
updateActionPage();
}
}
@ -283,18 +277,18 @@ void Part::slotGotoStart()
m_currentPage = 0;
m_outputDev->setPage(m_currentPage+1);
pdfpartview->pagesListBox->setCurrentItem(m_currentPage);
pdfpartview->setCurrentItem(m_currentPage);
updateActionPage();
}
}
bool Part::nextPage()
{
m_currentPage = pdfpartview->pagesListBox->currentItem() + 1;
m_currentPage = pdfpartview->getCurrentItem() + 1;
if ( m_doc && m_currentPage >= m_doc->getNumPages())
return false;
pdfpartview->pagesListBox->setCurrentItem(m_currentPage);
pdfpartview->setCurrentItem(m_currentPage);
m_outputDev->nextPage();
updateActionPage();
return true;
@ -312,11 +306,11 @@ void Part::slotPreviousPage()
bool Part::previousPage()
{
m_currentPage = pdfpartview->pagesListBox->currentItem() - 1;
if ( m_currentPage < 0)
m_currentPage = pdfpartview->getCurrentItem() - 1;
if (m_currentPage < 0)
return false;
pdfpartview->pagesListBox->setCurrentItem(m_currentPage );
pdfpartview->setCurrentItem(m_currentPage);
m_outputDev->previousPage();
updateActionPage();
return true;
@ -359,21 +353,37 @@ Part::openFile()
// just for fun, set the status bar
// emit setStatusBarText( QString::number( m_doc->getNumPages() ) );
// fill the listbox with entries for every page
pdfpartview->pagesListBox->setUpdatesEnabled(false);
pdfpartview->pagesListBox->clear();
for (int i = 1; i <= m_doc->getNumPages(); i++)
{
pdfpartview->pagesListBox->insertItem(QString::number(i));
}
pdfpartview->pagesListBox->setUpdatesEnabled(true);
pdfpartview->pagesListBox->update();
// TODO use a qvaluelist<int> to pass aspect ratio?
pdfpartview->setPages(m_doc->getNumPages(), m_doc->getPageHeight(1)/m_doc->getPageWidth(1));
displayPage(1);
pdfpartview->setCurrentItem(0);
m_outputDev->setPDFDocument(m_doc);
m_nextThumbnail=1;
QTimer::singleShot(10, this, SLOT(nextThumbnail()));
return true;
}
void Part::nextThumbnail()
{
// check the user did not change the document and we are trying to render somethiung that
// does not exist
if (m_nextThumbnail > m_doc->getNumPages()) return;
// Pixels per point when the zoomFactor is 1.
const float basePpp = QPaintDevice::x11AppDpiX() / 72.0;
const float ppp = basePpp * m_zoomFactor; // pixels per point
QOutputDevPixmap odev;
m_doc->displayPage(&odev, m_nextThumbnail, int(ppp * 72.0), 0, true);
pdfpartview->setThumbnail(m_nextThumbnail, odev.getPixmap());
m_nextThumbnail++;
if (m_nextThumbnail <= m_doc->getNumPages())
QTimer::singleShot(10, this, SLOT(nextThumbnail()));
}
void
Part::displayPage(int pageNumber, float /*zoomFactor*/)
{
@ -633,12 +643,10 @@ Part::redrawPage()
displayPage(m_currentPage);
}
void Part::pageClicked ( QListBoxItem * qbi )
void Part::pageClicked ( int i )
{
if ( !qbi )
return;
m_currentPage = pdfpartview->pagesListBox->index(qbi)+1;
m_outputDev->setPage(m_currentPage);
m_currentPage = i;
m_outputDev->setPage(m_currentPage+1);
updateActionPage();
}

5
kpdf/kpdf_part.h
View file

@ -13,7 +13,6 @@
class QPainter;
class QPixmap;
class QWidget;
class QListBoxItem;
class KAboutData;
class KAction;
@ -135,11 +134,13 @@ namespace KPDF
ZoomMode m_zoomMode;
float m_zoomFactor;
int m_nextThumbnail;
private slots:
void slotFitToWidthToggled();
void redrawPage();
void pageClicked ( QListBoxItem * );
void pageClicked ( int );
void nextThumbnail();
};
class BrowserExtension : public KParts::BrowserExtension

65
kpdf/part.cpp Normal file
View file

@ -0,0 +1,65 @@
#include "part.h"
#include <qlayout.h>
#include <qtable.h>
#include "kpdf_pagewidget.h"
#include "thumbnaillist.h"
/*
* Constructs a PDFPartView as a child of 'parent', with the
* name 'name'
*/
PDFPartView::PDFPartView(QWidget* parent, const char* name) : QWidget(parent, name)
{
PDFPartViewLayout = new QHBoxLayout( this, 11, 6, "PDFPartViewLayout");
pagesList = new ThumbnailList(this);
pagesList->setSizePolicy( QSizePolicy( (QSizePolicy::SizeType)1, (QSizePolicy::SizeType)7, 0, 0, pagesList->sizePolicy().hasHeightForWidth() ) );
pagesList->setMaximumSize( QSize( 75, 32767 ) );
pagesList->setColumnWidth(0, 75);
PDFPartViewLayout->addWidget( pagesList );
outputdev = new KPDF::PageWidget( this, "outputdev" );
PDFPartViewLayout->addWidget( outputdev );
resize( QSize(623, 381).expandedTo(minimumSizeHint()) );
clearWState( WState_Polished );
connect(pagesList, SIGNAL(clicked(int)), this, SIGNAL(clicked(int)));
}
/*
* Destroys the object and frees any allocated resources
*/
PDFPartView::~PDFPartView()
{
// no need to delete child widgets, Qt does it all for us
}
void PDFPartView::setCurrentItem(int i)
{
pagesList->setCurrentItem(i);
}
int PDFPartView::getCurrentItem() const
{
return pagesList->getCurrentItem();
}
void PDFPartView::setPages(int i, double ar)
{
pagesList->setPages(i, ar);
}
void PDFPartView::setThumbnail(int i, const QPixmap *thumbnail)
{
pagesList->setThumbnail(i, thumbnail);
}
void PDFPartView::showPageList(bool show)
{
if (show) pagesList->show();
else pagesList->hide();
}
#include "part.moc"

45
kpdf/part.h Normal file
View file

@ -0,0 +1,45 @@
#ifndef PDFPARTVIEW_H
#define PDFPARTVIEW_H
#include <qpixmap.h>
#include <qwidget.h>
class QHBoxLayout;
class QPixmap;
namespace KPDF {
class PageWidget;
}
class ThumbnailList;
class PDFPartView : public QWidget
{
Q_OBJECT
public:
PDFPartView(QWidget* parent, const char* name);
~PDFPartView();
void setCurrentItem(int i);
int getCurrentItem() const;
void setPages(int i, double ar);
void setThumbnail(int i, const QPixmap *thumbnail);
void showPageList(bool show);
// TODO make private
KPDF::PageWidget* outputdev;
signals:
void clicked(int);
protected:
QHBoxLayout* PDFPartViewLayout;
private:
ThumbnailList* pagesList;
};
#endif // PDFPARTVIEW_H

67
kpdf/thumbnail.cpp Normal file
View file

@ -0,0 +1,67 @@
/***************************************************************************
* Copyright (C) 2004 by Albert Astals Cid *
* tsdgeos@terra.es *
* *
* 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 <qapplication.h>
#include <qimage.h>
#include <qlabel.h>
#include <qpixmap.h>
#include "thumbnail.h"
Thumbnail::Thumbnail(QWidget *parent, const QString &text, const QColor &color, int height, int width) : QVBox(parent), m_backgroundColor(color)
{
m_thumbnailW = new QWidget(this);
m_thumbnailW->setFixedHeight(height);
m_thumbnailW->setFixedWidth(width);
m_label = new QLabel(text, this);
m_label->setAlignment(AlignCenter);
setPaletteBackgroundColor(m_backgroundColor);
}
void Thumbnail::setPixmap(const QPixmap *thumbnail)
{
m_original = thumbnail->convertToImage().smoothScale(m_thumbnailW->size());
m_thumbnailW->setPaletteBackgroundPixmap(m_original);
}
void Thumbnail::setPixmapSize(int height, int width)
{
m_thumbnailW->setFixedHeight(height);
m_thumbnailW->setFixedWidth(width);
}
int Thumbnail::getPixmapHeight() const
{
return m_thumbnailW->size().height();
}
void Thumbnail::resizeEvent(QResizeEvent *)
{
QImage im;
if (!m_original.isNull())
{
im = m_original.smoothScale(m_thumbnailW->size());
m_thumbnailW->setPaletteBackgroundPixmap(im);
}
}
void Thumbnail::setSelected(bool selected)
{
if (selected) setPaletteBackgroundColor(QApplication::palette().active().highlight());
else setPaletteBackgroundColor(m_backgroundColor);
}
int Thumbnail::labelSizeHintHeight()
{
return m_label->sizeHint().height();
}
#include "thumbnail.moc"

42
kpdf/thumbnail.h Normal file
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@ -0,0 +1,42 @@
/***************************************************************************
* Copyright (C) 2004 by Albert Astals Cid *
* tsdgeos@terra.es *
* *
* 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. *
***************************************************************************/
#ifndef THUMBNAIL_H
#define THUMBNAIL_H
#include <qcolor.h>
#include <qvbox.h>
class QLabel;
class Thumbnail : public QVBox
{
Q_OBJECT
public:
Thumbnail(QWidget *parent, const QString &text, const QColor &color, int height, int width);
public slots:
void setPixmap(const QPixmap *thumbnail);
void setPixmapSize(int height, int width);
int getPixmapHeight() const;
void setSelected(bool selected);
int labelSizeHintHeight();
protected:
void resizeEvent(QResizeEvent *);
private:
QWidget *m_thumbnailW;
QLabel *m_label;
QColor m_backgroundColor;
QImage m_original;
};
#endif

109
kpdf/thumbnaillist.cpp Normal file
View file

@ -0,0 +1,109 @@
/***************************************************************************
* Copyright (C) 2004 by Albert Astals Cid *
* tsdgeos@terra.es *
* *
* 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 "thumbnaillist.h"
#include "thumbnail.h"
ThumbnailList::ThumbnailList(QWidget *parent) : QTable(parent)
{
setNumCols(1);
setLeftMargin(0);
setTopMargin(0);
setHScrollBarMode(QScrollView::AlwaysOff);
m_selected = 0;
connect(this, SIGNAL(pressed(int, int, int, const QPoint&)), this, SIGNAL(clicked(int)));
connect(this, SIGNAL(currentChanged(int, int)), this, SLOT(changeSelected(int)));
}
void ThumbnailList::setCurrentItem(int i)
{
setCurrentCell(i, 0);
changeSelected(i);
}
void ThumbnailList::changeSelected(int i)
{
Thumbnail *t;
t = dynamic_cast<Thumbnail *>(cellWidget(m_selected, 0));
if (t) t -> setSelected(false);
m_selected = i;
t = dynamic_cast<Thumbnail *>(cellWidget(m_selected, 0));
if (t) t -> setSelected(true);
}
int ThumbnailList::getCurrentItem() const
{
return currentRow();
}
void ThumbnailList::setPages(int i, double ar)
{
Thumbnail *t;
m_ar = ar;
setNumRows(i);
for(int j=1; j <= i; j++)
{
t = new Thumbnail(this, QString::number(j), viewport()->paletteBackgroundColor(), (int)(visibleWidth()*ar), visibleWidth());
setCellWidget(j-1, 0, t);
setRowHeight(j-1, t->sizeHint().height());
}
m_heightLimit = 0;
}
void ThumbnailList::setThumbnail(int i, const QPixmap *thumbnail)
{
Thumbnail *t;
t = dynamic_cast<Thumbnail *>(cellWidget(i-1, 0));
t->setPixmap(thumbnail);
}
void ThumbnailList::viewportResizeEvent(QResizeEvent *)
{
// that if are here to avoid recursive resizing of death
// where the user makes the window smaller, that makes appear
// the vertical scrollbar, that makes thumbnails smaller, and
// while they get smaller the vertical scrollbar is not needed
// and....
Thumbnail *t;
if (numRows() == 0) return;
if (size().height() <= m_heightLimit)
{
t = dynamic_cast<Thumbnail *>(cellWidget(0, 0));
if (t->getPixmapHeight() > (int)(visibleWidth()*m_ar))
{
setColumnWidth(0, visibleWidth());
resizeThumbnails();
}
}
else
{
if (visibleWidth() != columnWidth(0))
{
setColumnWidth(0, visibleWidth());
resizeThumbnails();
if (m_heightLimit == 0 && verticalScrollBar() -> isVisible())
m_heightLimit = size().height();
}
}
}
void ThumbnailList::resizeThumbnails()
{
Thumbnail *t;
for(int i = 0; i < numRows(); ++i)
{
t = dynamic_cast<Thumbnail *>(cellWidget(i, 0));
t->setPixmapSize((int)(visibleWidth()*m_ar), visibleWidth());
setRowHeight(i, (int)(visibleWidth()*m_ar) + t->labelSizeHintHeight());
}
}
#include "thumbnaillist.moc"

46
kpdf/thumbnaillist.h Normal file
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@ -0,0 +1,46 @@
/***************************************************************************
* Copyright (C) 2004 by Albert Astals Cid *
* tsdgeos@terra.es *
* *
* 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. *
***************************************************************************/
#ifndef THUMBNAILLIST_H
#define THUMBNAILLIST_H
#include <qimage.h>
#include <qtable.h>
class ThumbnailList : public QTable
{
Q_OBJECT
public:
ThumbnailList(QWidget *parent);
int getCurrentItem() const;
void setCurrentItem(int i);
void setPages(int i, double ar);
void setThumbnail(int i, const QPixmap *thumbnail);
private slots:
void changeSelected(int i);
signals:
void clicked(int);
protected:
void viewportResizeEvent(QResizeEvent *);
private:
void resizeThumbnails();
double m_ar;
int m_selected;
int m_heightLimit;
};
#endif