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238 lines
7.6 KiB
238 lines
7.6 KiB
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/*
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Copyright (c) 2003,2004,2005 Clarence Dang <dang@kde.org>
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __kpselection_h__
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#define __kpselection_h__
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#include <tqbitmap.h>
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#include <tqdatastream.h>
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#include <tqobject.h>
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#include <tqpixmap.h>
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#include <tqpoint.h>
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#include <tqpointarray.h>
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#include <tqvaluevector.h>
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#include <tqrect.h>
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#include <tqstring.h>
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#include <kpcolor.h>
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#include <kppixmapfx.h>
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#include <kpselectiontransparency.h>
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#include <kptextstyle.h>
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class TQSize;
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/*
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* Holds a selection - will also be used for the clipboard
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* so that we can retain the border.
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*/
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class kpSelection : public QObject
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{
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Q_OBJECT
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public:
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enum Type
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{
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Rectangle,
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Ellipse,
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Points,
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Text
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};
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// (for any)
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kpSelection (const kpSelectionTransparency &transparency = kpSelectionTransparency ());
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// (for Rectangle & Ellipse)
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kpSelection (Type type, const TQRect &rect, const TQPixmap &pixmap = TQPixmap (),
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const kpSelectionTransparency &transparency = kpSelectionTransparency ());
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kpSelection (Type type, const TQRect &rect, const kpSelectionTransparency &transparency);
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// (for Text)
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kpSelection (const TQRect &rect, const TQValueVector <TQString> &textLines_, const kpTextStyle &textStyle_);
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// (for Points)
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kpSelection (const TQPointArray &points, const TQPixmap &pixmap = TQPixmap (),
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const kpSelectionTransparency &transparency = kpSelectionTransparency ());
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kpSelection (const TQPointArray &points, const kpSelectionTransparency &transparency);
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kpSelection (const kpSelection &rhs);
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kpSelection &operator= (const kpSelection &rhs);
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friend TQDataStream &operator<< (TQDataStream &stream, const kpSelection &selection);
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friend TQDataStream &operator>> (TQDataStream &stream, kpSelection &selection);
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void readFromStream (TQDataStream &stream,
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const kpPixmapFX::WarnAboutLossInfo &wali =
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kpPixmapFX::WarnAboutLossInfo ());
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~kpSelection ();
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private:
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void calculatePoints ();
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public:
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Type type () const;
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bool isRectangular () const;
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bool isText () const;
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// returns either i18n ("Selection") or i18n ("Text")
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TQString name () const;
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int size () const;
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TQBitmap maskForOwnType (bool nullForRectangular = false) const;
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// synonyms
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TQPoint topLeft () const;
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TQPoint point () const;
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int x () const;
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int y () const;
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void moveBy (int dx, int dy);
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void moveTo (int dx, int dy);
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void moveTo (const TQPoint &topLeftPoint);
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// synonyms
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TQPointArray points () const;
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TQPointArray pointArray () const;
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TQRect boundingRect () const;
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int width () const;
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int height () const;
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// (for non-rectangular selections, may return false even if
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// kpView::onSelectionResizeHandle())
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bool contains (const TQPoint &point) const;
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bool contains (int x, int y);
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// (Avoid using for text selections since text selection may
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// require a background for antialiasing purposes - use paint()
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// instead, else no antialising)
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TQPixmap *pixmap () const;
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void setPixmap (const TQPixmap &pixmap);
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bool usesBackgroundPixmapToPaint () const;
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private:
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void paintOpaqueText (TQPixmap *destPixmap, const TQRect &docRect) const;
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TQPixmap transparentForegroundTextPixmap () const;
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public:
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// (<docRect> is the document rectangle that <*destPixmap> represents)
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void paint (TQPixmap *destPixmap, const TQRect &docRect) const;
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private:
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void calculateTextPixmap ();
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public:
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static TQString textForTextLines (const TQValueVector <TQString> &textLines_);
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TQString text () const; // textLines() as one long string
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TQValueVector <TQString> textLines () const;
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void setTextLines (const TQValueVector <TQString> &textLines_);
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static int textBorderSize ();
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TQRect textAreaRect () const;
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bool pointIsInTextBorderArea (const TQPoint &globalPoint) const;
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bool pointIsInTextArea (const TQPoint &globalPoint) const;
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void textResize (int width, int height);
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// TODO: Enforce in kpSelection, not just in kpToolSelection & when pasting
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// (in kpMainWindow).
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// Be more robust when external enforcement fails.
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static int minimumWidthForTextStyle (const kpTextStyle &);
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static int minimumHeightForTextStyle (const kpTextStyle &);
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static TQSize minimumSizeForTextStyle (const kpTextStyle &);
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static int preferredMinimumWidthForTextStyle (const kpTextStyle &textStyle);
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static int preferredMinimumHeightForTextStyle (const kpTextStyle &textStyle);
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static TQSize preferredMinimumSizeForTextStyle (const kpTextStyle &textStyle);
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int minimumWidth () const;
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int minimumHeight () const;
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TQSize minimumSize () const;
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int textRowForPoint (const TQPoint &globalPoint) const;
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int textColForPoint (const TQPoint &globalPoint) const;
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TQPoint pointForTextRowCol (int row, int col);
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kpTextStyle textStyle () const;
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void setTextStyle (const kpTextStyle &textStyle);
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// TODO: ret val inconstent with pixmap()
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// - fix when merge with kpTempPixmap
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TQPixmap opaquePixmap () const; // same as pixmap()
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private:
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void calculateTransparencyMask ();
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public:
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// Returns opaquePixmap() after applying kpSelectionTransparency
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TQPixmap transparentPixmap () const;
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kpSelectionTransparency transparency () const;
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// Returns whether or not the selection changed due to setting the
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// transparency info. If <checkTransparentPixmapChanged> is set,
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// it will try harder to return false (although the check is
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// expensive).
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bool setTransparency (const kpSelectionTransparency &transparency,
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bool checkTransparentPixmapChanged = false);
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private:
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void flipPoints (bool horiz, bool vert);
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public:
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void flip (bool horiz, bool vert);
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signals:
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void changed (const TQRect &docRect);
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private:
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// OPT: use implicit sharing
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Type m_type;
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TQRect m_rect;
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TQPointArray m_points;
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TQPixmap *m_pixmap;
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TQValueVector <TQString> m_textLines;
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kpTextStyle m_textStyle;
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kpSelectionTransparency m_transparency;
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TQBitmap m_transparencyMask;
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private:
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// There is no need to maintain binary compatibility at this stage.
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// The d-pointer is just so that you can experiment without recompiling
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// the kitchen sink.
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class kpSelectionPrivate *d;
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};
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#endif // __kpselection_h__
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