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744 lines
22 KiB
744 lines
22 KiB
/* This file is part of KCachegrind.
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Copyright (C) 2002, 2003 Josef Weidendorfer <Josef.Weidendorfer@gmx.de>
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KCachegrind is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public
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License as published by the Free Software Foundation, version 2.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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/**
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* A Widget for visualizing hierarchical metrics as areas.
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* The API is similar to TQListView.
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*
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* This file defines the following classes:
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* DrawParams, RectDrawing, TreeMapItem, TreeMapWidget
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*
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* DrawParams/RectDrawing allows reusing of TreeMap drawing
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* functions in other widgets.
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*/
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#ifndef TREEMAP_H
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#define TREEMAP_H
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#include <tqstring.h>
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#include <tqwidget.h>
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#include <tqpixmap.h>
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#include <tqptrlist.h>
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#include <tqvaluevector.h>
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#include <tqcolor.h>
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#include <tqapplication.h>
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#include <tqstringlist.h>
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class TQPopupMenu;
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class TreeMapTip;
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class TreeMapWidget;
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class TreeMapItem;
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class TreeMapItemList;
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class TQString;
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class KConfigGroup;
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/**
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* Drawing parameters for an object.
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* A Helper Interface for RectDrawing.
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*/
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class DrawParams
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{
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public:
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/**
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* Positions for drawing into a rectangle.
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*
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* The specified position assumes no rotation.
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* If there is more than one text for one position, it is put
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* nearer to the center of the item.
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*
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* Drawing at top positions cuts free space from top,
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* drawing at bottom positions cuts from bottom.
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* Default usually gives positions clockwise according to field number.
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*/
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enum Position { TopLeft, TopCenter, TopRight,
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BottomLeft, BottomCenter, BottomRight,
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Default, Unknown};
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// no constructor as this is an abstract class
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virtual ~DrawParams() {}
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virtual TQString text(int) const = 0;
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virtual TQPixmap pixmap(int) const = 0;
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virtual Position position(int) const = 0;
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// 0: no limit, negative: leave at least -maxLines() free
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virtual int maxLines(int) const { return 0; }
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virtual int fieldCount() const { return 0; }
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virtual TQColor backColor() const { return TQt::white; }
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virtual const TQFont& font() const = 0;
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virtual bool selected() const { return false; }
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virtual bool current() const { return false; }
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virtual bool shaded() const { return true; }
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virtual bool rotated() const { return false; }
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};
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/*
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* DrawParam with attributes stored
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*/
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class StoredDrawParams: public DrawParams
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{
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public:
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StoredDrawParams();
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StoredDrawParams(TQColor c,
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bool selected = false, bool current = false);
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// getters
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TQString text(int) const;
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TQPixmap pixmap(int) const;
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Position position(int) const;
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int maxLines(int) const;
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int fieldCount() const { return _field.size(); }
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TQColor backColor() const { return _backColor; }
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bool selected() const { return _selected; }
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bool current() const { return _current; }
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bool shaded() const { return _shaded; }
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bool rotated() const { return _rotated; }
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const TQFont& font() const;
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// attribute setters
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void setField(int f, const TQString& t, TQPixmap pm = TQPixmap(),
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Position p = Default, int maxLines = 0);
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void setText(int f, const TQString&);
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void setPixmap(int f, const TQPixmap&);
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void setPosition(int f, Position);
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void setMaxLines(int f, int);
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void setBackColor(const TQColor& c) { _backColor = c; }
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void setSelected(bool b) { _selected = b; }
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void setCurrent(bool b) { _current = b; }
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void setShaded(bool b) { _shaded = b; }
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void setRotated(bool b) { _rotated = b; }
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protected:
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TQColor _backColor;
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bool _selected, _current, _shaded, _rotated;
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private:
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// resize field array if needed to allow to access field <f>
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void ensureField(int f);
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struct Field {
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TQString text;
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TQPixmap pix;
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Position pos;
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int maxLines;
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};
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TQValueVector<Field> _field;
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};
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/* State for drawing on a rectangle.
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*
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* Following drawing functions are provided:
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* - background drawing with shading and 3D frame
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* - successive pixmap/text drawing at various positions with wrap-around
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* optimized for minimal space usage (e.g. if a text is drawn at top right
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* after text on top left, the same line is used if space allows)
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*
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*/
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class RectDrawing
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{
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public:
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RectDrawing(TQRect);
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~RectDrawing();
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// The default DrawParams object used.
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DrawParams* drawParams();
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// we take control over the given object (i.e. delete at destruction)
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void setDrawParams(DrawParams*);
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// draw on a given TQPainter, use this class as info provider per default
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void drawBack(TQPainter*, DrawParams* dp = 0);
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/* Draw field at position() from pixmap()/text() with maxLines().
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* Returns true if something was drawn
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*/
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bool drawField(TQPainter*, int f, DrawParams* dp = 0);
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// resets rectangle for free space
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void setRect(TQRect);
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// Returns the rectangle area still free of text/pixmaps after
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// a number of drawText() calls.
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TQRect remainingRect(DrawParams* dp = 0);
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private:
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int _usedTopLeft, _usedTopCenter, _usedTopRight;
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int _usedBottomLeft, _usedBottomCenter, _usedBottomRight;
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TQRect _rect;
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// temporary
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int _fontHeight;
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TQFontMetrics* _fm;
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DrawParams* _dp;
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};
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class TreeMapItemList: public TQPtrList<TreeMapItem>
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{
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public:
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TreeMapItem* commonParent();
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protected:
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int compareItems ( Item item1, Item item2 );
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};
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typedef TQPtrListIterator<TreeMapItem> TreeMapItemListIterator;
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/**
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* Base class of items in TreeMap.
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*
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* This class supports an arbitrary number of text() strings
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* positioned counterclock-wise starting at TopLeft. Each item
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* has its own static value(), sum() and sorting(). The
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* splitMode() and borderWidth() is taken from a TreeMapWidget.
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*
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* If you want more flexibility, reimplement TreeMapItem and
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* override the corresponding methods. For dynamic creation of child
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* items on demand, reimplement children().
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*/
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class TreeMapItem: public StoredDrawParams
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{
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public:
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/**
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* Split direction for nested areas:
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* AlwaysBest: Choose split direction for every subitem according to
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* longest side of rectangle left for drawing
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* Best: Choose split direction for all subitems of an area
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* depending on longest side
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* HAlternate:Qt::Horizontal at top; alternate direction on depth step
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* VAlternate:Qt::Vertical at top; alternate direction on depth step
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* Qt::Horizontal: Always horizontal split direction
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* Qt::Vertical: Always vertical split direction
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*/
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enum SplitMode { Bisection, Columns, Rows,
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AlwaysBest, Best,
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HAlternate, VAlternate,
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Horizontal, Vertical };
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TreeMapItem(TreeMapItem* parent = 0, double value = 1.0 );
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TreeMapItem(TreeMapItem* parent, double value,
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TQString text1, TQString text2 = TQString(),
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TQString text3 = TQString(), TQString text4 = TQString());
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virtual ~TreeMapItem();
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bool isChildOf(TreeMapItem*);
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TreeMapItem* commonParent(TreeMapItem* item);
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// force a redraw of this item
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void redraw();
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// delete all children
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void clear();
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// force new child generation & refresh
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void refresh();
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// call in a reimplemented items() method to check if already called
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// after a clear(), this will return false
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bool initialized();
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/**
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* Adds an item to a parent.
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* When no sorting is used, the item is appended (drawn at bottom).
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* This is only needed if the parent was not already specified in the
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* construction of the item.
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*/
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void addItem(TreeMapItem*);
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/**
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* Returns a list of text strings of specified text number,
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* from root up to this item.
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*/
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TQStringList path(int) const;
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/**
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* Depth of this item. This is the distance to root.
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*/
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int depth() const;
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/**
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* Parent Item
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*/
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TreeMapItem* parent() const { return _parent; }
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/**
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* Temporary rectangle used for drawing this item the last time.
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* This is internally used to map from a point to an item.
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*/
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void setItemRect(const TQRect& r) { _rect = r; }
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void clearItemRect();
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const TQRect& itemRect() const { return _rect; }
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int width() const { return _rect.width(); }
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int height() const { return _rect.height(); }
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/**
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* Temporary rectangle list of free space of this item.
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* Used internally to enable tooltip.
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*/
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void clearFreeRects();
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TQPtrList<TQRect>* freeRects() const { return _freeRects; }
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void addFreeRect(const TQRect& r);
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/**
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* Temporary child item index of the child that was current() recently.
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*/
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int index() const { return _index; }
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void setIndex(int i) { _index = i; }
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/**
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* TreeMap widget this item is put in.
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*/
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TreeMapWidget* widget() const { return _widget; }
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void setParent(TreeMapItem* p);
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void setWidget(TreeMapWidget* w) { _widget = w; }
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void setSum(double s) { _sum = s; }
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void setValue(double s) { _value = s; }
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virtual double sum() const;
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virtual double value() const;
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// replace "Default" position with setting from TreeMapWidget
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virtual Position position(int) const;
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virtual const TQFont& font() const;
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virtual bool isMarked(int) const;
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virtual int borderWidth() const;
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/**
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* Returns the text number after that sorting is done or
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* -1 for no sorting, -2 for value() sorting (default).
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* If ascending != 0, a bool value is written at that location
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* to indicate if sorting should be ascending.
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*/
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virtual int sorting(bool* ascending) const;
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/**
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* Set the sorting for child drawing.
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*
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* Default is no sorting: <textNo> = -1
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* For value() sorting, use <textNo> = -2
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*
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* For fast sorting, set this to -1 before child insertions and call
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* again after inserting all children.
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*/
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void setSorting(int textNo, bool ascending = true);
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/**
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* Resort according to the already set sorting.
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*
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* This has to be done if the sorting base changes (e.g. text or values
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* change). If this is only true for the children of this item, you can
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* set the recursive parameter to false.
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*/
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void resort(bool recursive = true);
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virtual SplitMode splitMode() const;
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virtual int rtti() const;
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// not const as this can create children on demand
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virtual TreeMapItemList* children();
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protected:
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TreeMapItemList* _children;
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double _sum, _value;
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private:
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TreeMapWidget* _widget;
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TreeMapItem* _parent;
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int _sortTextNo;
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bool _sortAscending;
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// temporary tqlayout
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TQRect _rect;
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TQPtrList<TQRect>* _freeRects;
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int _depth;
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// temporary self value (when using level skipping)
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double _unused_self;
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// index of last active subitem
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int _index;
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};
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/**
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* Class for visualisation of a metric of hierarchically
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* nested items as 2D areas.
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*/
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class TreeMapWidget: public TQWidget
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{
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Q_OBJECT
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TQ_OBJECT
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public:
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/**
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* Same as in TQListBox/TQListView
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*/
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enum SelectionMode { Single, Multi, Extended, NoSelection };
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TreeMapWidget(TreeMapItem* base, TQWidget* parent=0, const char* name=0);
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~TreeMapWidget();
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/**
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* Returns the TreeMapItem filling out the widget space
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*/
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TreeMapItem* base() const { return _base; }
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/**
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* Returns a reference to the current widget font.
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*/
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const TQFont& currentFont() const;
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/**
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* Returns the area item at position x/y, independent from any
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* maxSelectDepth setting.
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*/
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TreeMapItem* item(int x, int y) const;
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/**
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* Returns the nearest item with a visible area; this
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* can be the given item itself.
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*/
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TreeMapItem* visibleItem(TreeMapItem*) const;
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/**
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* Returns the item possible for selection. this returns the
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* given item itself or a parent thereof,
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* depending on setting of maxSelectDepth().
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*/
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TreeMapItem* possibleSelection(TreeMapItem*) const;
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/**
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* Selects or unselects an item.
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* In multiselection mode, the constrain that a selected item
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* has no selected children or parents stays true.
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*/
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void setSelected(TreeMapItem*, bool selected = true);
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/**
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* Switches on the marking <markNo>. Marking 0 switches off marking.
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* This is mutually exclusive to selection, and is automatically
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* switched off when selection is changed (also by the user).
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* Marking is visually the same as selection, and is based on
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* TreeMapItem::isMarked(<markNo>).
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* This enables to programmatically show multiple selected items
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* at once even in single selection mode.
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*/
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void setMarked(int markNo = 1, bool redraw = true);
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/**
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* Clear selection of all selected items which are children of
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* parent. When parent == 0, clears whole selection
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* Returns true if selection changed.
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*/
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bool clearSelection(TreeMapItem* parent = 0);
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/**
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* Selects or unselects items in a range.
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* This is needed internally for Shift-Click in Extented mode.
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* Range means for a hierarchical widget:
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* - select/unselect i1 and i2 according selected
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* - search common parent of i1 and i2, and select/unselect the
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* range of direct children between but excluding the child
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* leading to i1 and the child leading to i2.
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*/
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void setRangeSelection(TreeMapItem* i1,
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TreeMapItem* i2, bool selected);
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/**
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* Sets the current item.
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* The current item is mainly used for keyboard navigation.
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*/
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void setCurrent(TreeMapItem*, bool kbd=false);
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/**
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* Set the maximal depth a selected item can have.
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* If you try to select a item with higher depth, the ancestor holding
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* this condition is used.
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*
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* See also possibleSelection().
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*/
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void setMaxSelectDepth(int d) { _maxSelectDepth = d; }
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void setSelectionMode(SelectionMode m) { _selectionMode = m; }
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/**
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* for setting/getting global split direction
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*/
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void setSplitMode(TreeMapItem::SplitMode m);
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TreeMapItem::SplitMode splitMode() const;
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// returns true if string was recognized
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bool setSplitMode(TQString);
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TQString splitModeString() const;
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/*
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* Shading of rectangles enabled ?
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*/
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void setShadingEnabled(bool s);
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bool isShadingEnabled() const { return _shading; }
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/**
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* Items usually have a size proportional to their value().
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* With <width>, you can give the minimum width
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* of the resulting rectangle to still be drawn.
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* For space not used because of to small items, you can specify
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* with <reuseSpace> if the background should shine through or
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* the space will be used to enlarge the next item to be drawn
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* at this level.
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*/
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void setVisibleWidth(int width, bool reuseSpace = false);
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/**
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* If a children value() is almost the parents sum(),
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* it can happen that the border to be drawn for visibilty of
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* nesting relations takes to much space, and the
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* parent/child size relation can not be mapped to a correct
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* area size relation.
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*
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* Either
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* (1) Ignore the incorrect drawing, or
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* (2) Skip drawing of the parent level alltogether.
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*/
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void setSkipIncorrectBorder(bool enable = true);
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bool skipIncorrectBorder() const { return _skipIncorrectBorder; }
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/**
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* Maximal nesting depth
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*/
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void setMaxDrawingDepth(int d);
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int maxDrawingDepth() const { return _maxDrawingDepth; }
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/**
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* Minimal area for rectangles to draw
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*/
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void setMinimalArea(int area);
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int minimalArea() const { return _minimalArea; }
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/* defaults for text attributes */
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TQString defaultFieldType(int) const;
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TQString defaultFieldStop(int) const;
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bool defaultFieldVisible(int) const;
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bool defaultFieldForced(int) const;
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DrawParams::Position defaultFieldPosition(int) const;
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/**
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* Set the type name of a field.
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* This is important for the visualization menu generated
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* with visualizationMenu()
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*/
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void setFieldType(int, TQString);
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TQString fieldType(int) const;
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/**
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* Stop drawing at item with name
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*/
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void setFieldStop(int, TQString);
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TQString fieldStop(int) const;
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|
|
|
/**
|
|
* Should the text with number textNo be visible?
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|
* This is only done if remaining space is enough to allow for
|
|
* proportional size constrains.
|
|
*/
|
|
void setFieldVisible(int, bool);
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|
bool fieldVisible(int) const;
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|
|
|
/**
|
|
* Should the drawing of the name into the rectangle be forced?
|
|
* This enables drawing of the name before drawing subitems, and
|
|
* thus destroys proportional constrains.
|
|
*/
|
|
void setFieldForced(int, bool);
|
|
bool fieldForced(int) const;
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|
|
|
/**
|
|
* Set the field position in the area. See TreeMapItem::Position
|
|
*/
|
|
void setFieldPosition(int, DrawParams::Position);
|
|
DrawParams::Position fieldPosition(int) const;
|
|
void setFieldPosition(int, TQString);
|
|
TQString fieldPositionString(int) const;
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|
|
|
/**
|
|
* Do we allow the texts to be rotated by 90 degrees for better fitting?
|
|
*/
|
|
void setAllowRotation(bool);
|
|
bool allowRotation() const { return _allowRotation; }
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|
|
|
void setBorderWidth(int w);
|
|
int borderWidth() const { return _borderWidth; }
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|
|
|
/**
|
|
* Save/restore options.
|
|
*/
|
|
void saveOptions(KConfigGroup*, TQString prefix = TQString());
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|
void restoreOptions(KConfigGroup*, TQString prefix = TQString());
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|
|
|
/**
|
|
* These functions populate given popup menus.
|
|
* The added items are already connected to handlers.
|
|
*
|
|
* The int is the menu id where to start for the items (100 IDs reserved).
|
|
*/
|
|
void addSplitDirectionItems(TQPopupMenu*, int);
|
|
void addSelectionItems(TQPopupMenu*, int, TreeMapItem*);
|
|
void addFieldStopItems(TQPopupMenu*, int, TreeMapItem*);
|
|
void addAreaStopItems(TQPopupMenu*, int, TreeMapItem*);
|
|
void addDepthStopItems(TQPopupMenu*, int, TreeMapItem*);
|
|
void addVisualizationItems(TQPopupMenu*, int);
|
|
|
|
TreeMapWidget* widget() { return this; }
|
|
TreeMapItem* current() const { return _current; }
|
|
TreeMapItemList selection() const { return _selection; }
|
|
bool isSelected(TreeMapItem* i) const;
|
|
int maxSelectDepth() const { return _maxSelectDepth; }
|
|
SelectionMode selectionMode() const { return _selectionMode; }
|
|
|
|
/**
|
|
* Return tooltip string to show for a item (can be rich text)
|
|
* Default implementation gives lines with "text0 (text1)" going to root.
|
|
*/
|
|
virtual TQString tipString(TreeMapItem* i) const;
|
|
|
|
/**
|
|
* Redraws an item with all children.
|
|
* This takes changed values(), sums(), colors() and text() into account.
|
|
*/
|
|
void redraw(TreeMapItem*);
|
|
void redraw() { redraw(_base); }
|
|
|
|
/**
|
|
* Resort all TreeMapItems. See TreeMapItem::resort().
|
|
*/
|
|
void resort() { _base->resort(true); }
|
|
|
|
// internal
|
|
void drawTreeMap();
|
|
|
|
// used internally when items are destroyed
|
|
void deletingItem(TreeMapItem*);
|
|
|
|
protected slots:
|
|
void splitActivated(int);
|
|
void selectionActivated(int);
|
|
void fieldStopActivated(int);
|
|
void areaStopActivated(int);
|
|
void depthStopActivated(int);
|
|
void visualizationActivated(int);
|
|
|
|
signals:
|
|
void selectionChanged();
|
|
void selectionChanged(TreeMapItem*);
|
|
|
|
/**
|
|
* This signal is emitted if the current item changes.
|
|
* If the change is done because of keyboard navigation,
|
|
* the <kbd> is set to true
|
|
*/
|
|
void currentChanged(TreeMapItem*, bool keyboard);
|
|
void clicked(TreeMapItem*);
|
|
void returnPressed(TreeMapItem*);
|
|
void doubleClicked(TreeMapItem*);
|
|
void rightButtonPressed(TreeMapItem*, const TQPoint &);
|
|
void contextMenuRequested(TreeMapItem*, const TQPoint &);
|
|
|
|
protected:
|
|
void mousePressEvent( TQMouseEvent * );
|
|
void contextMenuEvent( TQContextMenuEvent * );
|
|
void mouseReleaseEvent( TQMouseEvent * );
|
|
void mouseMoveEvent( TQMouseEvent * );
|
|
void mouseDoubleClickEvent( TQMouseEvent * );
|
|
void keyPressEvent( TQKeyEvent* );
|
|
void paintEvent( TQPaintEvent * );
|
|
void resizeEvent( TQResizeEvent * );
|
|
void showEvent( TQShowEvent * );
|
|
void fontChange( const TQFont& );
|
|
|
|
private:
|
|
TreeMapItemList diff(TreeMapItemList&, TreeMapItemList&);
|
|
// returns true if selection changed
|
|
TreeMapItem* setTmpSelected(TreeMapItem*, bool selected = true);
|
|
TreeMapItem* setTmpRangeSelection(TreeMapItem* i1,
|
|
TreeMapItem* i2, bool selected);
|
|
bool isTmpSelected(TreeMapItem* i);
|
|
|
|
void drawItem(TQPainter* p, TreeMapItem*);
|
|
void drawItems(TQPainter* p, TreeMapItem*);
|
|
bool horizontal(TreeMapItem* i, const TQRect& r);
|
|
void drawFill(TreeMapItem*,TQPainter* p, TQRect& r);
|
|
void drawFill(TreeMapItem*,TQPainter* p, TQRect& r,
|
|
TreeMapItemListIterator it, int len, bool goBack);
|
|
bool drawItemArray(TQPainter* p, TreeMapItem*, TQRect& r, double,
|
|
TreeMapItemListIterator it, int len, bool);
|
|
bool resizeAttr(int);
|
|
|
|
TreeMapItem* _base;
|
|
TreeMapItem *_current, *_pressed, *_lastOver, *_oldCurrent;
|
|
TreeMapTip* _tip;
|
|
int _maxSelectDepth, _maxDrawingDepth;
|
|
|
|
// attributes for field, per textNo
|
|
struct FieldAttr {
|
|
TQString type, stop;
|
|
bool visible, forced;
|
|
DrawParams::Position pos;
|
|
};
|
|
TQValueVector<FieldAttr> _attr;
|
|
|
|
SelectionMode _selectionMode;
|
|
TreeMapItem::SplitMode _splitMode;
|
|
int _visibleWidth, _stopArea, _minimalArea, _borderWidth;
|
|
bool _reuseSpace, _skipIncorrectBorder, _drawSeparators, _shading;
|
|
bool _allowRotation;
|
|
TreeMapItem * _needsRefresh;
|
|
TreeMapItemList _selection;
|
|
int _markNo;
|
|
|
|
// for the context menus: start IDs
|
|
int _splitID, _selectionID, _visID;
|
|
int _fieldStopID, _areaStopID, _depthStopID;
|
|
TreeMapItem* _menuItem;
|
|
|
|
// temporary selection while dragging, used for drawing
|
|
// most of the time, _selection == _tmpSelection
|
|
TreeMapItemList _tmpSelection;
|
|
bool _inShiftDrag, _inControlDrag;
|
|
|
|
// temporary widget font metrics while drawing
|
|
TQFont _font;
|
|
int _fontHeight;
|
|
|
|
// back buffer pixmap
|
|
TQPixmap _pixmap;
|
|
};
|
|
|
|
#endif
|