You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
651 lines
25 KiB
651 lines
25 KiB
#ifndef _TDEMULTIPAGE_H
|
|
#define _TDEMULTIPAGE_H
|
|
|
|
#include "pageView.h"
|
|
#include "documentPageCache.h"
|
|
#include "documentRenderer.h"
|
|
#include "history.h"
|
|
#include "tdemultipageInterface.h"
|
|
#include "marklist.h"
|
|
|
|
#include <tdeparts/part.h>
|
|
#include <tqtimer.h>
|
|
|
|
class Anchor;
|
|
class DocumentWidget;
|
|
class TDEConfigDialog;
|
|
class KPrintDialogPage_PageOptions;
|
|
class KPrinter;
|
|
class PageView;
|
|
class TQPainter;
|
|
class TQSplitter;
|
|
class TQToolBox;
|
|
class simplePageSize;
|
|
class TableOfContents;
|
|
class PageNumber;
|
|
class SearchWidget;
|
|
|
|
|
|
/** \brief This class provides plugin-specific GUI elements for kviewshell plugins
|
|
|
|
@author Wilfried Huss, Stefan Kebekus
|
|
|
|
*/
|
|
|
|
// TODO remove virtual inheritance for KDE 4. It's the reason for the strange DCOPObject construction
|
|
class KMultiPage : public KParts::ReadOnlyPart, virtual public tdemultipageInterface
|
|
{
|
|
Q_OBJECT
|
|
|
|
|
|
public:
|
|
KMultiPage(TQWidget *parentWidget, const char *widgetName, TQObject *parent, const char *name);
|
|
virtual ~KMultiPage();
|
|
|
|
/* returns the scrollview used for the display */
|
|
virtual TQWidget* mainWidget() {return _scrollView;}
|
|
|
|
/* Methods which are associated with the DCOP functionality of the
|
|
tdemultipage. This method returns the file name (not the URL) of
|
|
the currently loaded file. */
|
|
TQString name_of_current_file();
|
|
|
|
/* Methods which are associated with the DCOP functionality of the
|
|
tdemultipage. This method can be implemented by the multipage,
|
|
e.g. to jump to a certain location. */
|
|
virtual ASYNC jumpToReference(const TQString& /*reference*/);
|
|
|
|
/* Methods which are associated with the DCOP functionality of the
|
|
tdemultipage. This method checks if a given file is loaded. */
|
|
bool is_file_loaded(const TQString& filename);
|
|
|
|
/* Opens file and sets URL
|
|
|
|
This method does the same as openFile, but sets the m_url of the
|
|
tdemultipage. This can be important, for the following reason:
|
|
assume that a DVI is or DJVU-file is located on a web server at
|
|
baseURL=http://www.x.x/x.dvi The file may refer to external
|
|
graphic files using relative links.
|
|
|
|
The file is downloaded by the kviewpart to a temporary file on
|
|
the hard disk, say /tmp/t.dvi. The kviewpart would then call this
|
|
method with filename=/tmp/t.dvi and baseURL=http://www.x.x/x.dvi,
|
|
so the DVI-renderer knows to interpret the link to t.jpg as
|
|
http://www.x.x/t.jpg, and will download the file from there.
|
|
|
|
@warning This method is virtual only for technical reasons. Do
|
|
not re-implement this method
|
|
|
|
@returns true on success, false on failure
|
|
*/
|
|
virtual bool openURL(const TQString &filename, const KURL &base_url);
|
|
|
|
/** Prints a document
|
|
|
|
This method prints a document. The default implementation offers
|
|
fairly good printer support, but printing with the default
|
|
implementation is usually quite slow as tremendous amounts of data
|
|
needs to be transferred to the printer. To limit the data sent to
|
|
the printer, this default implementation prints only at low
|
|
resolution and produces mediocre quality. This method can (and
|
|
should) therefore be re-implemented if you have good code to convert
|
|
your document to PostScript.
|
|
|
|
Example: If your document consists of a single A4 page that contains
|
|
a DJVU image of 30KB, then the default implementation would render
|
|
the image in 600dpi, i.e. in about 7000x5000 pixel, and then send
|
|
this huge graphics uncompressed to the printer. A smart
|
|
implementation, on the other hand, would send the DJVU-file directly
|
|
to the printer, together with a DJVU decoder, which is implemented
|
|
in PostScript and uses only a few KB of memory, making for less than
|
|
40KB of data sent to the printer.
|
|
|
|
If you decide to re-implement this method, you need to decide if
|
|
your implementation will support the options offered by the "page
|
|
size & placement" tab of the print dialog. If these options are set,
|
|
pages that are smaller/larger than the printer's paper size will be
|
|
shrunk/enlarged and optionally centered on the paper.
|
|
|
|
If your implementation does not support the options, the following
|
|
code should be used:
|
|
@code
|
|
// Obtain a fully initialized KPrinter structure, and disable all
|
|
// entries in the "Page Size & Placement" tab of the printer dialog.
|
|
KPrinter *printer = getPrinter(false);
|
|
// Abort with an error message if no KPrinter could be initialized
|
|
if (printer == 0) {
|
|
kdError(4300) << "KPrinter not available" << endl;
|
|
return;
|
|
}
|
|
|
|
// Show the printer options dialog. Return immediately if the user
|
|
// aborts.
|
|
if (!printer->setup(parentWdg, i18n("Print %1").arg(m_file.section('/', -1)) )) {
|
|
delete printer;
|
|
return;
|
|
}
|
|
|
|
... <Produce a PostScript file, with filename, say, tmpPSFile. You
|
|
can use all the features that KPrinter has to offer. Note that
|
|
printer->pageList() gives a list of pages to be printed, where "1"
|
|
denotes the first page, "2" the second, etc.> ...
|
|
|
|
printer->printFiles( TQStringList(tmpPSFile), true );
|
|
delete printer;
|
|
@endcode
|
|
|
|
If your implementation does support the options, code must be
|
|
provided to support the KPrinter options
|
|
"kde-kviewshell-shrinkpage", "kde-kviewshell-expandpage",
|
|
"kde-kviewshell-centerpage" and "kde-kviewshell-rotatepage". It is
|
|
important to note that "kde-kviewshell-rotatepage" and
|
|
"kde-kviewshell-centerpage" should by default treated as "true",
|
|
while the other options should be "false" by default. The following
|
|
code sees to that:
|
|
@code
|
|
// Obtain a fully initialized KPrinter structure, and enable all
|
|
// entries in the "Page Size & Placement" tab of the printer dialog.
|
|
KPrinter *printer = getPrinter(true);
|
|
// Abort with an error message if no KPrinter could be initialized
|
|
if (printer == 0) {
|
|
kdError(4300) << "KPrinter not available" << endl;
|
|
return;
|
|
}
|
|
|
|
// Show the printer options dialog. Return immediately if the user
|
|
// aborts.
|
|
if (!printer->setup(parentWdg, i18n("Print %1").arg(m_file.section('/', -1)) )) {
|
|
delete printer;
|
|
return;
|
|
}
|
|
|
|
if (printer->option( "kde-kviewshell-shrinkpage" ) == "true")
|
|
<Shrink some pages to paper size, where necessary>
|
|
if (printer->option( "kde-kviewshell-expandpage" ) == "true")
|
|
<Expand some pages to paper size, where necessary>
|
|
if (printer->option( "kde-kviewshell-centerpage" ) != "false")
|
|
<Center pages on paper>
|
|
if (printer->option( "kde-kviewshell-rotatepage" ) != "false")
|
|
<rotate pages by 90 deg. counterclockwise, if paper orientation is different from pages orientation>
|
|
|
|
... <Produce a PostScript file, with filename, say, tmpPSFile. You
|
|
can use all the features that KPrinter has to offer. Note that
|
|
printer->pageList() gives a list of pages to be printed, where "1"
|
|
denotes the first page, "2" the second, etc.> ...
|
|
|
|
printer->printFiles( TQStringList(tmpPSFile), true );
|
|
delete printer;
|
|
@endcode
|
|
|
|
For more information, see the default implementation in the source
|
|
file tdemultipage.cpp. You might also look at the documentation to
|
|
getPrinter().
|
|
*/
|
|
virtual void print();
|
|
|
|
|
|
/* Returns true if the document specifies page sizes, and false
|
|
otherwise. NOTE: the information returned by this method is not
|
|
always 100% reliable. Although unlikely, it is theoretically
|
|
possible that this method returns 'true', but still some of the
|
|
sizes returned by sizeOfPage() are invalid. */
|
|
virtual bool hasSpecifiedPageSizes() const {return renderer && renderer->hasSpecifiedPageSizes();}
|
|
|
|
/* This methos is similar to openFile(). It is used when the "Watch
|
|
file" option is activated, and the file has changed on disk. It
|
|
differs from openFile() in two aspects: first, the file is
|
|
checked for validity with DVIRenderer.isValidFile(m_file) if the
|
|
file is invalid, a timer event is used to call the method again
|
|
after a brief pause. Secondly, when the GUI is updated, the
|
|
implementation does not jump to the first page, but tries to keep
|
|
the current page. */
|
|
virtual void reload();
|
|
|
|
// Interface definition start ------------------------------------------------
|
|
|
|
/** list of supported file formats, for saving
|
|
|
|
This member must return the list of supported file formats for
|
|
saving. These strings returned must be in the format explained in
|
|
the documentation to KFileDialog::setFilter(), e.g. ""*.cpp *.cxx
|
|
*.c++|C++ Source Files". The use of mimetype-filters is allowed, but
|
|
discouraged. Among other penalties, if a multipage gives a
|
|
mimetype-filter, e.g. "application/x-dvi", the open file dialog in
|
|
kviewshell will not allow the user to see and select compressed
|
|
dvi-files.
|
|
*/
|
|
virtual TQStringList fileFormats() const = 0;
|
|
|
|
/// closes a file
|
|
virtual bool closeURL();
|
|
|
|
/* sets a zoom factor. The multipage implementation might refuse to
|
|
use a given zoom factor, even if it falls within the bounds given
|
|
by the constants MinZoom and MaxZoom which are defined in
|
|
zoomlimits.h. In that case, the multipage implementation chooses a
|
|
different zomm factor. The implementation returns the factor which
|
|
has actually been used. A default implementation is provided. */
|
|
virtual double setZoom(double z);
|
|
|
|
/** reads in settings. Reimplementations must call this. */
|
|
virtual void readSettings();
|
|
|
|
/** writes settings. Reimplementations must call this. */
|
|
virtual void writeSettings();
|
|
|
|
/** Flag to indicate that this implementation has support for textserach and selection */
|
|
virtual bool supportsTextSearch() const { return getRenderer() && getRenderer()->supportsTextSearch(); }
|
|
|
|
/** Flag to indicate the document was modified since last saved
|
|
|
|
KMultiPage implementations that offer functionality that
|
|
modifies the document (e.g. remove or insert pages) must
|
|
re-implement this method to return
|
|
|
|
@returns 'true' if the document was modified since it was last
|
|
saved
|
|
*/
|
|
virtual bool isModified() const {return false;}
|
|
|
|
/* Returns the number of the first (i.e. top-left) page in the
|
|
display. Such a number cannot be reasonably assigned
|
|
(e.g. because the current document is empty, or because no
|
|
document has been loaded yet), the method returns "invalid page",
|
|
i.e. 0. */
|
|
virtual PageNumber currentPageNumber();
|
|
|
|
/* Returns the number of pages in the currently loaded document or
|
|
0, if no document is loaded or if the document is empty */
|
|
PageNumber numberOfPages() const {return renderer.isNull() ? (PageNumber)0 : renderer->totalPages();}
|
|
|
|
/* List of pages selected in the sidebar
|
|
|
|
@returns a list with the numbers of the currently selected
|
|
pages. */
|
|
virtual TQValueList<int> selectedPages() {return markList()->selectedPages();}
|
|
|
|
virtual History* history() { return &document_history; }
|
|
|
|
/** Add pages to the KViewshell's central preferences dialog
|
|
|
|
This method can be re-implemented to add documenttype specific
|
|
configuration pages to the central preferences dialog. The
|
|
documentation to TDEConfigDialog explains how to do that.
|
|
|
|
The default implementation does nothing.
|
|
|
|
@param configDialog a pointer to the TDEConfigDialog the dialog to
|
|
add pages to
|
|
*/
|
|
virtual void addConfigDialogs(TDEConfigDialog* configDialog) { Q_UNUSED(configDialog); }
|
|
|
|
|
|
/* These methods calculate the Zoomfactor needed to fit the pages
|
|
into the current viewport. Note that the return value need *not*
|
|
be within the limits defined in "zoomLimits.h". If they are not,
|
|
this indicates that fitting to width or height is currently not
|
|
possible (e.g. because no document is loaded). The return value
|
|
should then be ignored and any operation that relies on the
|
|
return value should be aborted. */
|
|
virtual double calculateFitToWidthZoomValue();
|
|
virtual double calculateFitToHeightZoomValue();
|
|
|
|
/* Returns the number of columns into which the widgets are aligned. */
|
|
virtual TQ_UINT8 getNrColumns() const { return _scrollView->getNrColumns(); }
|
|
virtual TQ_UINT8 getNrRows() const { return _scrollView->getNrRows(); }
|
|
|
|
virtual bool overviewMode() const { return _scrollView->overviewMode(); }
|
|
|
|
// =========== Interface definition ends
|
|
|
|
/* ---------------------------------------------------------------------
|
|
The following methods export functions of the DocumentPageCache which
|
|
are currently needed by KViewPart. TODO: Clean this up again without
|
|
directly linking DocumentPageCache to the KViewPart. */
|
|
|
|
/* Returns the size of page 'page'. If the document does not
|
|
specify a size (which happens, e.g., for some DVI-files), then
|
|
the userPreferredSize is returned. */
|
|
virtual SimplePageSize sizeOfPage(const PageNumber& page = 1) const { return pageCache->sizeOfPage(page); }
|
|
|
|
public slots:
|
|
/* Sets the userPreferredSize, which is explained below */
|
|
virtual void setUserPreferredSize(const SimplePageSize& t) { pageCache->setUserPreferredSize(t); }
|
|
virtual void setUseDocumentSpecifiedSize(bool b) { pageCache->setUseDocumentSpecifiedSize(b); }
|
|
// --------------------------------------------------------------------
|
|
|
|
protected:
|
|
/** Update GUI after loading or closing of a file
|
|
|
|
This method is called by openFile() when a new file was loaded,
|
|
and by closeURL() when a file is closed so that the tdemultipage
|
|
implementation can update its own GUI, enable/disable actions,
|
|
prepare info texts, etc. At the time the method is executed, the
|
|
file has already been loaded into the renderer using
|
|
renderer.setFile(), or closed using renderer.clear() and the
|
|
standard KMultiPage GUI is set up. The filename can be accessed
|
|
via m_file.
|
|
|
|
The default implementation does nothing.
|
|
|
|
@param success the return value of renderer.setFile() which
|
|
indicates if the file could be successfully loaded by the
|
|
renderer, or not. Note that setFile() is called even if the
|
|
renderer returned 'false', so that the implemtation can then
|
|
disable menu items, etc. */
|
|
virtual void setFile(bool success);
|
|
|
|
/* Creates new instances of DocumentWidget. If you need special
|
|
functionality and reimplement the DocumentWidget class, then you
|
|
should also reimplement this method to ensure that your new
|
|
DocumentWidgets will be used. This function is also the right
|
|
place to connect to signals emitted by DocumentWidget. */
|
|
virtual DocumentWidget* createDocumentWidget();
|
|
|
|
/* Used to enable/disable TDEActions of multiPage implementations.
|
|
enableActions(true) should be called whenever a file is
|
|
successfully loaded. enableActions(false) is called when the
|
|
file is closed. */
|
|
virtual void enableActions(bool);
|
|
|
|
/* Initializes all data structures that need to know the renderer.
|
|
This function must be called in the constructor of multipage
|
|
implementations. */
|
|
void setRenderer(DocumentRenderer*);
|
|
|
|
/** This function creates the page cache. If a multipage implementation needs
|
|
additional functionaly from the cache overwrite this function to create a
|
|
subclass of DocumentPageCache.
|
|
@warning This function is called by the constructor, never call it explicitly.
|
|
*/
|
|
virtual void initializePageCache();
|
|
|
|
/* Returns a pointer to the renderer. */
|
|
virtual TQGuardedPtr<DocumentRenderer> getRenderer() const { return renderer; }
|
|
|
|
PageView* scrollView() { return _scrollView; }
|
|
|
|
MarkList* markList() { return _markList; }
|
|
|
|
// The next two functions are used for the autozoom feature
|
|
// TODO optimize (the calculation of the widest page needs to be done only once
|
|
// per document, not everytime calculateFitToWidthZoomValue() is called)
|
|
PageNumber widestPage() const;
|
|
|
|
// TODO Generalize this for more than 2 columns
|
|
double zoomForWidthColumns(unsigned int viewportWidth) const;
|
|
|
|
public slots:
|
|
virtual void doSelectAll();
|
|
|
|
virtual void clearSelection();
|
|
|
|
virtual void copyText();
|
|
|
|
/** Exports the document to a plain text file. */
|
|
virtual void doExportText();
|
|
|
|
/* Shows the "text search" dialog, if text search is supported by
|
|
the renderer. Otherwise, the method returns immediately. */
|
|
virtual void showFindTextDialog();
|
|
|
|
|
|
/* This method may be called after the text search dialog
|
|
'findDialog' has been set up, and the user has entered a search
|
|
phrase. The method searches for the next occurence of the text,
|
|
starting from the beginning of the current page, or after the
|
|
currently selected text, if there is any. */
|
|
virtual void findNextText();
|
|
|
|
/* This method may be called after the text search dialog
|
|
'findDialog' has been set up, and the user has entered a search
|
|
phrase. The method searches for the next occurence of the text,
|
|
starting from the end of the current page, or before the
|
|
currently selected text, if there is any. */
|
|
virtual void findPrevText();
|
|
|
|
/** Opens a file requestor and starts a basic copy TDEIO-Job. A
|
|
multipage implementation that wishes to offer saving in various
|
|
formats must re-implement this slot. */
|
|
virtual void slotSave();
|
|
|
|
/* The standard implementation just calls slotSave. */
|
|
virtual void slotSave_defaultFilename();
|
|
|
|
/* Initialize/Update PageWidgets, thumbnail list and bookmark list
|
|
|
|
This slot is called after a document was loaded, when the
|
|
document was modified (e.g. when pages were deleted), or the
|
|
rendering mode is changed (e.g. when a different accessibility
|
|
viewmode is selected). The following is done
|
|
|
|
- The page cache is cleared
|
|
|
|
- all page widgets as well as the thumbnails are updated.
|
|
*/
|
|
void renderModeChanged();
|
|
|
|
/* Empties the page cache and --as the name suggests-- repaints all
|
|
visible widgets. */
|
|
void repaintAllVisibleWidgets();
|
|
|
|
/* Tells the multipage if scrollbars should be used. */
|
|
virtual void slotShowScrollbars(bool);
|
|
|
|
/* Show or hide the sidebar widget. */
|
|
virtual void slotShowSidebar(bool);
|
|
|
|
/* Show or hide thumbnails. */
|
|
virtual void slotShowThumbnails(bool);
|
|
|
|
/* Used internally. */
|
|
void slotIOJobFinished ( TDEIO::Job *job );
|
|
|
|
/* Switches to fullscreen mode and back. */
|
|
virtual void slotSetFullPage(bool fullpage);
|
|
|
|
virtual void setViewMode(int);
|
|
|
|
/* Is called if settings are changed in the configuration dialog.
|
|
If this method is reimplemented in a child class, it needs to be
|
|
called from there. */
|
|
virtual void preferencesChanged();
|
|
|
|
/* Page Navigation. */
|
|
virtual bool gotoPage(const PageNumber& page);
|
|
virtual void gotoPage(const Anchor& a);
|
|
|
|
virtual void prevPage();
|
|
virtual void nextPage();
|
|
virtual void firstPage();
|
|
virtual void lastPage();
|
|
|
|
virtual void scrollUp();
|
|
virtual void scrollDown();
|
|
virtual void scrollLeft();
|
|
virtual void scrollRight();
|
|
|
|
virtual void scrollUpPage();
|
|
virtual void scrollDownPage();
|
|
virtual void scrollLeftPage();
|
|
virtual void scrollRightPage();
|
|
|
|
virtual void readUp();
|
|
virtual void readDown();
|
|
|
|
virtual void doGoBack();
|
|
virtual void doGoForward();
|
|
|
|
/* Scrolls the main scrollview by deltaInPixel (positive values
|
|
scroll DOWN). If the user tries to scroll past the beginning or
|
|
the end of a page, then the method either returns without doing
|
|
anything (if the current page is the first or last page, resp, or
|
|
if the method is called within 200ms after the beg. or end of the
|
|
page was reached), or goes the the next/previous page. The delay
|
|
makes it a little easier for the user to scroll with the mouse
|
|
wheel or the keyboard without involuntarily moving to another
|
|
page. */
|
|
virtual void scroll(TQ_INT32 deltaInPixel);
|
|
|
|
virtual void slotEnableMoveTool(bool enable);
|
|
|
|
protected slots:
|
|
virtual bool gotoPage(const PageNumber& page, int y, bool isLink = true);
|
|
|
|
/* Make the selection visible */
|
|
void gotoPage(const TextSelection&);
|
|
|
|
private slots:
|
|
void handleLocalLink(const TQString &linkText);
|
|
|
|
signals:
|
|
/** Emitted with argument "true" when the move tool is selected, and
|
|
with argument "false" if selection tool is selected. */
|
|
void enableMoveTool(bool enable);
|
|
|
|
/* Emitted when a page has been selected in the MarkList. */
|
|
void selected(const PageNumber& pageNumber);
|
|
|
|
/* Emitted to indicate the number of pages in the file and the
|
|
current page. The receiver will not change or update the display,
|
|
nor call the gotoPage()-method. */
|
|
void pageInfo(int nr, int currpg);
|
|
|
|
void askingToCheckActions();
|
|
|
|
/* emitted when a new preview is available */
|
|
void previewChanged(bool previewAvailable);
|
|
|
|
void viewModeChanged();
|
|
|
|
/* Emitted when the zoom of the pageview changes. */
|
|
void zoomChanged();
|
|
|
|
void zoomOut();
|
|
void zoomIn();
|
|
|
|
/* Emitted it the status of the text selection changes. */
|
|
void textSelected(bool);
|
|
|
|
void searchEnabled(bool);
|
|
|
|
// Interface definition end --------------------------------------------------
|
|
|
|
public slots:
|
|
virtual void generateDocumentWidgets(const PageNumber& startPage = PageNumber::invalidPage);
|
|
|
|
protected slots:
|
|
/* This is the slot where mouseWheel events are processed that come
|
|
from the multipage/scrollview. This method calles scroll, a
|
|
delta-value of 120 (i.e. one notch on a standard wheel mouse)
|
|
scrolls by two 'lines'. */
|
|
void wheelEvent(TQWheelEvent *);
|
|
|
|
protected:
|
|
/** Allocates and initializes a KPrinter structure
|
|
|
|
This method is used in implementations of the print() method. See
|
|
the documentation of print() for more information and for example
|
|
code. This method allocates and initializes a KPrinter
|
|
structure. The list of pages marked in the sidebar is already set in
|
|
the "kde-range" option in the KPrinter structure. In this option "1"
|
|
means: first page of the document, "2" the second, etc.
|
|
|
|
@param enablePageSizeFeatures Enables or diables the entries in the
|
|
"Page Size & Placement" tab of the print dialog.
|
|
|
|
@returns a pointer to a KPrinter, or 0 if no KPrinter could be
|
|
allocated.
|
|
|
|
@warning The KPrinter allocated is owned by the caller must be
|
|
deleted before the KMultiPage is deleted. Otherwise, a segfault will
|
|
occur.
|
|
*/
|
|
KPrinter *getPrinter(bool enablePageSizeFeatures=true);
|
|
|
|
|
|
/** Pointer to the parent widget
|
|
|
|
This pointer is automatically set by the constructor.
|
|
*/
|
|
TQGuardedPtr<TQWidget> parentWdg;
|
|
|
|
TQPtrVector<DocumentWidget> widgetList;
|
|
|
|
History document_history;
|
|
|
|
/* Variable which is used internally by the method
|
|
currentPageNumber() to provide 'lazy' page numbers. */
|
|
PageNumber lastCurrentPage;
|
|
|
|
/* The pageCache caches already drawn "documentPages" and invokes
|
|
the renderer if the needed page is not available in the cache. */
|
|
DocumentPageCache* pageCache;
|
|
|
|
private slots:
|
|
void setCurrentPageNumber(const PageNumber&);
|
|
void updateWidgetSize(const PageNumber&);
|
|
|
|
/* Interrupts a search if one is currently performed, otherwise
|
|
hide the search panel */
|
|
void stopSearch();
|
|
|
|
private:
|
|
/* For internal use by the reload()-method. See the comments in
|
|
tdemultipage.cpp, right before the timerEvent function. */
|
|
int timer_id;
|
|
|
|
/* For internal use the reload()-method. This is a dreadful
|
|
hack. The problem we adress with this timer event is the
|
|
following: the kviewshell has a KDirWatch object which looks at
|
|
the DVI file and calls reload() when the object has changed. That
|
|
works very nicely in principle, but in practise, when TeX runs
|
|
for several seconds over a complicated file, this does not work
|
|
at all. First, most of the time, while TeX is still writing, the
|
|
file is invalid. Thus, reload() is very often called when the DVI
|
|
file is bad. We solve this problem by checking the file first. If
|
|
the file is bad, we do not reload. Second, when the file finally
|
|
becomes good, it very often happens that KDirWatch does not
|
|
notify us anymore. Whether this is a bug or a side effect of a
|
|
feature of KDirWatch, I dare not say. We remedy that problem by
|
|
using a timer: when reload() was called on a bad file, we
|
|
automatically come back (via the timerEvent() function) every
|
|
second and check if the file became good. If so, we stop the
|
|
timer. It may well happen that KDirWatch calls us several times
|
|
while we are waiting for the file to become good, but that does
|
|
not do any harm. */
|
|
void timerEvent( TQTimerEvent *e );
|
|
|
|
/* This method opens a file and sets up the GUI when the file is
|
|
loaded. It calls setFile() so that implementations of tdemultipage
|
|
can update their own GUI. DO NOT REIMPLEMENT THIS METHOD. */
|
|
bool openFile();
|
|
|
|
/* Is set by setRenderer. */
|
|
TQGuardedPtr<DocumentRenderer> renderer;
|
|
|
|
PageView *_scrollView;
|
|
SearchWidget* searchWidget;
|
|
TQToolBox* sideBar;
|
|
|
|
MarkList* _markList;
|
|
TableOfContents* tableOfContents;
|
|
|
|
TQSplitter* splitterWidget;
|
|
|
|
/* This timer is used to implement a brief delay when the user
|
|
scrolls past the beginning or the end of the page before a the
|
|
program moves to a new page. That way, it is a little easier for
|
|
the user to scroll with the mouse wheel or the keyboard without
|
|
involuntarily moving to another page. The timer is used in the
|
|
scroll() method. */
|
|
TQTimer changePageDelayTimer;
|
|
|
|
// This is set to true while a text search is performed.
|
|
// If set to false the search is interrupted.
|
|
bool searchInProgress;
|
|
};
|
|
|
|
|
|
#endif
|