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tdelibs/kate/part/kateviewinternal.h

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/* This file is part of the KDE libraries
Copyright (C) 2002 John Firebaugh <jfirebaugh@kde.org>
Copyright (C) 2002 Joseph Wenninger <jowenn@kde.org>
Copyright (C) 2002 Christoph Cullmann <cullmann@kde.org>
Based on:
KWriteView : Copyright (C) 1999 Jochen Wilhelmy <digisnap@cs.tu-berlin.de>
This library 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 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; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef _KATE_VIEW_INTERNAL_
#define _KATE_VIEW_INTERNAL_
#include "katecursor.h"
#include "katesupercursor.h"
#include "katelinerange.h"
#include "katetextline.h"
#include "katedocument.h"
#include <tqpoint.h>
#include <tqtimer.h>
#include <tqintdict.h>
#include <tqdragobject.h>
class KateView;
class KateIconBorder;
class KateScrollBar;
class TQHBoxLayout;
class TQVBoxLayout;
class TQScrollBar;
enum Bias
{
left_b = -1,
none = 0,
right_b = 1
};
class KateViewInternal : public TQWidget
{
Q_OBJECT
friend class KateView;
friend class KateIconBorder;
friend class KateScrollBar;
friend class CalculatingCursor;
friend class BoundedCursor;
friend class WrappingCursor;
public:
KateViewInternal ( KateView *view, KateDocument *doc );
~KateViewInternal ();
//BEGIN EDIT STUFF
public:
void editStart ();
void editEnd (int editTagLineStart, int editTagLineEnd, bool tagFrom);
void editSetCursor (const KateTextCursor &cursor);
private:
uint editSessionNumber;
bool editIsRunning;
KateTextCursor editOldCursor;
//END
//BEGIN TAG & CLEAR & UPDATE STUFF
public:
bool tagLine (const KateTextCursor& virtualCursor);
bool tagLines (int start, int end, bool realLines = false);
bool tagLines (KateTextCursor start, KateTextCursor end, bool realCursors = false);
void tagAll ();
void clear ();
//END
private:
void updateView (bool changed = false, int viewLinesScrolled = 0);
void makeVisible (const KateTextCursor& c, uint endCol, bool force = false, bool center = false, bool calledExternally = false);
public:
inline const KateTextCursor& startPos() const { return m_startPos; }
inline uint startLine () const { return m_startPos.line(); }
inline uint startX () const { return m_startX; }
KateTextCursor endPos () const;
uint endLine () const;
KateLineRange yToKateLineRange(uint y) const;
void prepareForDynWrapChange();
void dynWrapChanged();
KateView *view () { return m_view; }
public slots:
void slotIncFontSizes();
void slotDecFontSizes();
private slots:
void scrollLines(int line); // connected to the sliderMoved of the m_lineScroll
void scrollViewLines(int offset);
void scrollNextPage();
void scrollPrevPage();
void scrollPrevLine();
void scrollNextLine();
void scrollColumns (int x); // connected to the valueChanged of the m_columnScroll
void viewSelectionChanged ();
public:
void doReturn();
void doDelete();
void doBackspace();
void doTranspose();
void doDeleteWordLeft();
void doDeleteWordRight();
void cursorLeft(bool sel=false);
void cursorRight(bool sel=false);
void wordLeft(bool sel=false);
void wordRight(bool sel=false);
void home(bool sel=false);
void end(bool sel=false);
void cursorUp(bool sel=false);
void cursorDown(bool sel=false);
void cursorToMatchingBracket(bool sel=false);
void scrollUp();
void scrollDown();
void topOfView(bool sel=false);
void bottomOfView(bool sel=false);
void pageUp(bool sel=false);
void pageDown(bool sel=false);
void top(bool sel=false);
void bottom(bool sel=false);
void top_home(bool sel=false);
void bottom_end(bool sel=false);
inline const KateTextCursor& getCursor() { return cursor; }
TQPoint cursorCoordinates();
void paintText (int x, int y, int width, int height, bool paintOnlyDirty = false);
// EVENT HANDLING STUFF - IMPORTANT
protected:
void paintEvent(TQPaintEvent *e);
bool eventFilter( TQObject *obj, TQEvent *e );
void keyPressEvent( TQKeyEvent* );
void keyReleaseEvent( TQKeyEvent* );
void resizeEvent( TQResizeEvent* );
void mousePressEvent( TQMouseEvent* );
void mouseDoubleClickEvent( TQMouseEvent* );
void mouseReleaseEvent( TQMouseEvent* );
void mouseMoveEvent( TQMouseEvent* );
void dragEnterEvent( TQDragEnterEvent* );
void dragMoveEvent( TQDragMoveEvent* );
void dropEvent( TQDropEvent* );
void showEvent ( TQShowEvent *);
void wheelEvent(TQWheelEvent* e);
void focusInEvent (TQFocusEvent *);
void focusOutEvent (TQFocusEvent *);
void contextMenuEvent ( TQContextMenuEvent * e );
private slots:
void tripleClickTimeout();
signals:
// emitted when KateViewInternal is not handling its own URI drops
void dropEventPass(TQDropEvent*);
private slots:
void slotRegionVisibilityChangedAt(unsigned int);
void slotRegionBeginEndAddedRemoved(unsigned int);
void slotCodeFoldingChanged();
private:
void moveChar( Bias bias, bool sel );
void moveEdge( Bias bias, bool sel );
KateTextCursor maxStartPos(bool changed = false);
void scrollPos(KateTextCursor& c, bool force = false, bool calledExternally = false);
void scrollLines( int lines, bool sel );
uint linesDisplayed() const;
int lineToY(uint viewLine) const;
void updateSelection( const KateTextCursor&, bool keepSel );
void updateCursor( const KateTextCursor& newCursor, bool force = false, bool center = false, bool calledExternally = false );
void updateBracketMarks();
void paintCursor();
void updateMicroFocusHint();
void placeCursor( const TQPoint& p, bool keepSelection = false, bool updateSelection = true );
bool isTargetSelected( const TQPoint& p );
void doDrag();
KateView *m_view;
KateDocument* m_doc;
class KateIconBorder *leftBorder;
int mouseX;
int mouseY;
int scrollX;
int scrollY;
TQt::CursorShape m_mouseCursor;
KateSuperCursor cursor;
KateTextCursor displayCursor;
int cXPos;
bool possibleTripleClick;
// Bracket mark
KateBracketRange bm;
enum DragState { diNone, diPending, diDragging };
struct _dragInfo {
DragState state;
TQPoint start;
TQTextDrag* dragObject;
} dragInfo;
uint iconBorderHeight;
//
// line scrollbar + first visible (virtual) line in the current view
//
KateScrollBar *m_lineScroll;
TQWidget* m_dummy;
TQVBoxLayout* m_lineLayout;
TQHBoxLayout* m_colLayout;
// These are now cursors to account for word-wrap.
KateSuperCursor m_startPos;
// This is set to false on resize or scroll (other than that called by makeVisible),
// so that makeVisible is again called when a key is pressed and the cursor is in the same spot
bool m_madeVisible;
bool m_shiftKeyPressed;
// How many lines to should be kept visible above/below the cursor when possible
void setAutoCenterLines(int viewLines, bool updateView = true);
int m_autoCenterLines;
int m_minLinesVisible;
//
// column scrollbar + x position
//
TQScrollBar *m_columnScroll;
int m_startX;
// has selection changed while your mouse or shift key is pressed
bool m_selChangedByUser;
KateTextCursor selectAnchor;
enum SelectionMode { Default=0, Word, Line, Mouse }; ///< for drag selection. @since 2.3
uint m_selectionMode;
// when drag selecting after double/triple click, keep the initial selected
// word/line independant of direction.
// They get set in the event of a double click, and is used with mouse move + leftbutton
KateTextCursor selStartCached;
KateTextCursor selEndCached;
//
// lines Ranges, mostly useful to speedup + dyn. word wrap
//
TQMemArray<KateLineRange> lineRanges;
// maximal lenght of textlines visible from given startLine
int maxLen(uint startLine);
// are we allowed to scroll columns?
bool columnScrollingPossible ();
// returns the maximum X value / col value a cursor can take for a specific line range
int lineMaxCursorX(const KateLineRange& range);
int lineMaxCol(const KateLineRange& range);
// get the values for a specific range.
// specify lastLine to get the next line of a range.
KateLineRange range(int realLine, const KateLineRange* previous = 0L);
KateLineRange currentRange();
KateLineRange previousRange();
KateLineRange nextRange();
// Finds the lineRange currently occupied by the cursor.
KateLineRange range(const KateTextCursor& realCursor);
// Returns the lineRange of the specified realLine + viewLine.
KateLineRange range(uint realLine, int viewLine);
// find the view line of cursor c (0 = same line, 1 = down one, etc.)
uint viewLine(const KateTextCursor& realCursor);
// find the view line of the cursor, relative to the display (0 = top line of view, 1 = second line, etc.)
// if limitToVisible is true, only lines which are currently visible will be searched for, and -1 returned if the line is not visible.
int displayViewLine(const KateTextCursor& virtualCursor, bool limitToVisible = false);
// find the index of the last view line for a specific line
uint lastViewLine(uint realLine);
// count the number of view lines for a real line
uint viewLineCount(uint realLine);
// find the cursor offset by (offset) view lines from a cursor.
// when keepX is true, the column position will be calculated based on the x
// position of the specified cursor.
KateTextCursor viewLineOffset(const KateTextCursor& virtualCursor, int offset, bool keepX = false);
// These variable holds the most recent maximum real & visible column number
bool m_preserveMaxX;
int m_currentMaxX;
bool m_usePlainLines; // accept non-highlighted lines if this is set
inline KateTextLine::Ptr textLine( int realLine )
{
if (m_usePlainLines)
return m_doc->plainKateTextLine(realLine);
else
return m_doc->kateTextLine(realLine);
}
bool m_updatingView;
int m_wrapChangeViewLine;
KateTextCursor m_cachedMaxStartPos;
private slots:
void doDragScroll();
void startDragScroll();
void stopDragScroll();
private:
// Timers
TQTimer m_dragScrollTimer;
TQTimer m_scrollTimer;
TQTimer m_cursorTimer;
TQTimer m_textHintTimer;
static const int scrollTime = 30;
static const int scrollMargin = 16;
private slots:
void scrollTimeout ();
void cursorTimeout ();
void textHintTimeout ();
//TextHint
public:
void enableTextHints(int timeout);
void disableTextHints();
private:
bool m_textHintEnabled;
int m_textHintTimeout;
int m_textHintMouseX;
int m_textHintMouseY;
/**
* IM input stuff
*/
protected:
void imStartEvent( TQIMEvent *e );
void imComposeEvent( TQIMEvent *e );
void imEndEvent( TQIMEvent *e );
private:
int m_imPreeditStartLine;
int m_imPreeditStart;
int m_imPreeditLength;
int m_imPreeditSelStart;
};
#endif
// kate: space-indent on; indent-width 2; replace-tabs on;