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/***************************************************************************
* Copyright (C) 2005 by David Saxton *
* david@bluehaze.org *
* *
* 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 TEXTVIEW_H
#define TEXTVIEW_H
#include "config.h"
#include "view.h"
#include <kate/view.h>
#include <qguardedptr.h>
#include <qlabel.h>
class QMouseEvent;
class RegisterInfo;
class TextDocument;
class TextView;
class VariableLabel;
/**
@author David Saxton
*/
class TextView : public View
{
Q_OBJECT
public:
TextView( TextDocument *textDocument, ViewContainer *viewContainer, uint viewAreaId, const char *name = 0 );
~TextView();
virtual bool closeView();
/**
* Brings up the goto line dialog.
*/
bool gotoLine( const int line ) { return m_view->setCursorPosition( line, 0/*m_view->cursorColumn()*/ ); }
/**
* Returns a pointer to the document as a text document
*/
TextDocument *textDocument() const;
void cut() { m_view->cut(); }
void copy() { m_view->copy(); }
void paste() { m_view->paste(); }
void saveCursorPosition();
void restoreCursorPosition();
/**
* Enable code actions depending on the type of code being edited
*/
void initCodeActions();
void setCursorPosition( uint line, uint col ) { m_view->setCursorPosition( line, col ); }
unsigned currentLine();
unsigned currentColumn();
void disableActions();
Kate::View * kateView() const { return m_view; }
Kate::View::saveResult save() { return m_view->save(); }
Kate::View::saveResult saveAs() { return m_view->saveAs(); }
virtual void setFocused();
public slots:
/**
* Called when change line / toggle marks
*/
void slotUpdateMarksInfo();
void slotCursorPositionChanged();
void toggleBreakpoint();
/**
* Initialize the actions appropriate for when the debugger is running
* or stepping
*/
void slotInitDebugActions();
protected slots:
void slotWordHoveredOver( const QString & word, int line, int col );
void slotWordUnhovered();
protected:
Kate::View *m_view;
#ifndef NO_GPSIM
VariableLabel * m_pTextViewLabel; ///< Pops up when the user hovers his mouse over a word
#endif
private:
uint m_savedCursorLine;
uint m_savedCursorColumn;
};
/**
This class is an event filter to be installed in the kate view, and is used to
do stuff like poping up menus and telling TextView that a word is being hovered
over (used in the debugger).
@author David Saxton
*/
class TextViewEventFilter : public QObject
{
Q_OBJECT
public:
TextViewEventFilter( TextView * textView );
bool eventFilter( QObject * watched, QEvent * e );
signals:
/**
* When the user hovers the mouse for more than 700 milliseconds over a
* word, "hover mode" is entered. When the user presses a key, clicks
* mouse, etc, this mode is left. During the mode, any word that is
* under the mouse cursor will be emitted as hoveredOver( word ).
*/
void wordHoveredOver( const QString & word, int line, int col );
/**
* Emitted when focus is lost, the mouse moves to a different word, etc.
*/
void wordUnhovered();
protected slots:
void slotNeedTextHint( int line, int col, QString & text );
/**
* Called when we are not in hover mode, but the user has had his mouse
* in the same position for some time.
*/
void hoverTimeout();
/**
* Called (from m_pSleepTimer) when we are in hover mode, but no word
* has been hovered over for some time.
*/
void gotoSleep();
/**
* @see m_pNoWordTimer
*/
void slotNoWordTimeout();
protected:
enum HoverStatus
{
/**
* We are currently hovering - wordHoveredOver was emitted, and
* wordUnhovered hasn't been emitted yet.
*/
Active,
/**
* A word was unhovered recently. We will go straight to PoppedUp
* mode if a word is hovered over again.
*/
Hidden,
/**
* A word was not unhovered recentely. There will be a short display
* before going to PoppedUp mode if a word is hovered over.
*/
Sleeping,
};
/**
* Starts / stops timers, emits signals, etc. See other functions for an
* idea of what this does.
*/
void updateHovering( const QString & currentWord, int line, int col );
/**
* Started when the user moves his mouse over a word, and we are in
* Sleeping mode. Reset when the user moves his mouse, etc.
*/
QTimer * m_pHoverTimer;
/**
* Started when a word is unhovered. When this timeouts, we will go to
* Sleeping mode.
*/
QTimer * m_pSleepTimer;
/**
* Activated by the user moving the mouse. Reset by a call to
* slotNeedTextHint. This timer is needed as KateViewInternal doesn't
* bother updating us if the mouse cursor isn't over text.
*/
QTimer * m_pNoWordTimer;
TextView * m_pTextView;
QString m_lastWord;
int m_lastLine;
int m_lastCol;
HoverStatus m_hoverStatus;
};
#endif
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