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314 lines
8.7 KiB
314 lines
8.7 KiB
15 years ago
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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 __kp_tool_selection_h__
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#define __kp_tool_selection_h__
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#include <qpixmap.h>
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#include <qpoint.h>
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#include <qpointarray.h>
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#include <qrect.h>
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#include <kpcolor.h>
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#include <kpcommandhistory.h>
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#include <kpselection.h>
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#include <kpselectiontransparency.h>
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#include <kptool.h>
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class QPoint;
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class QRect;
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class QTimer;
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class kpMainWindow;
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class kpSelection;
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class kpToolSelectionCreateCommand;
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class kpToolSelectionMoveCommand;
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class kpToolSelectionPullFromDocumentCommand;
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class kpToolSelectionResizeScaleCommand;
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class kpToolWidgetOpaqueOrTransparent;
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class kpToolSelection : public kpTool
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{
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Q_OBJECT
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public:
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enum Mode {Rectangle, Ellipse, FreeForm, Text};
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kpToolSelection (Mode mode,
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const QString &text, const QString &description,
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int key,
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kpMainWindow *mainWindow, const char *name);
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virtual ~kpToolSelection ();
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void setMode (Mode mode) { m_mode = mode; }
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private:
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void pushOntoDocument ();
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protected:
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bool onSelectionToMove () const;
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int onSelectionResizeHandle () const;
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bool onSelectionToSelectText () const;
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public:
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QString haventBegunDrawUserMessage () const;
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virtual void begin ();
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virtual void end ();
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virtual void reselect ();
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virtual bool careAboutModifierState () const { return true; }
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bool controlOrShiftPressed () const { return (m_controlPressed || m_shiftPressed); }
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virtual void beginDraw ();
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protected:
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const QCursor &cursor () const;
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public:
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virtual void hover (const QPoint &point);
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protected:
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void popupRMBMenu ();
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void setSelectionBorderForMove ();
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protected slots:
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void slotRMBMoveUpdateGUI ();
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void delayedDraw ();
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public:
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virtual void draw (const QPoint &thisPoint, const QPoint &lastPoint,
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const QRect &normalizedRect);
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virtual void cancelShape ();
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virtual void releasedAllButtons ();
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virtual void endDraw (const QPoint &thisPoint, const QRect &normalizedRect);
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protected:
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virtual void keyPressEvent (QKeyEvent *e);
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protected:
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void selectionTransparencyChanged (const QString &name);
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protected slots:
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virtual void slotIsOpaqueChanged ();
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virtual void slotBackgroundColorChanged (const kpColor &color);
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virtual void slotColorSimilarityChanged (double similarity, int);
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protected:
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Mode m_mode;
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QPoint m_startDragFromSelectionTopLeft;
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enum DragType
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{
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Unknown, Create, Move, SelectText, ResizeScale
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};
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DragType m_dragType;
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bool m_dragHasBegun;
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bool m_hadSelectionBeforeDrag;
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int m_resizeScaleType;
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kpToolSelectionPullFromDocumentCommand *m_currentPullFromDocumentCommand;
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kpToolSelectionMoveCommand *m_currentMoveCommand;
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bool m_currentMoveCommandIsSmear;
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kpToolSelectionResizeScaleCommand *m_currentResizeScaleCommand;
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kpToolWidgetOpaqueOrTransparent *m_toolWidgetOpaqueOrTransparent;
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kpToolSelectionCreateCommand *m_currentCreateTextCommand;
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bool m_cancelledShapeButStillHoldingButtons;
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QTimer *m_createNOPTimer, *m_RMBMoveUpdateGUITimer;
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};
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class kpToolSelectionCreateCommand : public kpNamedCommand
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{
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public:
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// (if fromSelection doesn't have a pixmap, it will only recreate the region)
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kpToolSelectionCreateCommand (const QString &name, const kpSelection &fromSelection,
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kpMainWindow *mainWindow);
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virtual ~kpToolSelectionCreateCommand ();
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virtual int size () const;
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static bool nextUndoCommandIsCreateBorder (kpCommandHistory *commandHistory);
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const kpSelection *fromSelection () const;
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void setFromSelection (const kpSelection &fromSelection);
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virtual void execute ();
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virtual void unexecute ();
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private:
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kpSelection *m_fromSelection;
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int m_textRow, m_textCol;
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};
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class kpToolSelectionPullFromDocumentCommand : public kpNamedCommand
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{
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public:
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kpToolSelectionPullFromDocumentCommand (const QString &name, kpMainWindow *mainWindow);
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virtual ~kpToolSelectionPullFromDocumentCommand ();
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virtual int size () const;
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virtual void execute ();
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virtual void unexecute ();
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private:
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kpColor m_backgroundColor;
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kpSelection *m_originalSelectionRegion;
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};
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class kpToolSelectionTransparencyCommand : public kpNamedCommand
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{
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public:
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kpToolSelectionTransparencyCommand (const QString &name,
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const kpSelectionTransparency &st,
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const kpSelectionTransparency &oldST,
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kpMainWindow *mainWindow);
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virtual ~kpToolSelectionTransparencyCommand ();
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virtual int size () const;
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virtual void execute ();
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virtual void unexecute ();
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private:
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kpSelectionTransparency m_st, m_oldST;
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};
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class kpToolSelectionMoveCommand : public kpNamedCommand
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{
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public:
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kpToolSelectionMoveCommand (const QString &name, kpMainWindow *mainWindow);
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virtual ~kpToolSelectionMoveCommand ();
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kpSelection originalSelection () const;
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virtual int size () const;
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virtual void execute ();
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virtual void unexecute ();
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void moveTo (const QPoint &point, bool moveLater = false);
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void moveTo (int x, int y, bool moveLater = false);
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void copyOntoDocument ();
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void finalize ();
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private:
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QPoint m_startPoint, m_endPoint;
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QPixmap m_oldDocumentPixmap;
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// area of document affected (not the bounding rect of the sel)
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QRect m_documentBoundingRect;
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QPointArray m_copyOntoDocumentPoints;
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};
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// You could subclass kpToolResizeScaleCommand and/or
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// kpToolSelectionMoveCommand instead if want a disaster.
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// This is different to kpToolResizeScaleCommand in that:
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//
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// 1. This only works for selections.
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// 2. This is designed for the size and position to change several times
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// before execute().
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//
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class kpToolSelectionResizeScaleCommand : public QObject,
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public kpNamedCommand
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{
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Q_OBJECT
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public:
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kpToolSelectionResizeScaleCommand (kpMainWindow *mainWindow);
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virtual ~kpToolSelectionResizeScaleCommand ();
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virtual int size () const;
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public:
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kpSelection originalSelection () const;
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QPoint topLeft () const;
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void moveTo (const QPoint &point);
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int width () const;
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int height () const;
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void resize (int width, int height, bool delayed = false);
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// (equivalent to resize() followed by moveTo() but faster)
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void resizeAndMoveTo (int width, int height, const QPoint &point,
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bool delayed = false);
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protected:
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void killSmoothScaleTimer ();
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// If <delayed>, does a fast, low-quality scale and then calls itself
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// with <delayed> unset for a smooth scale, a short time later.
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// If acting on a text box, <delayed> is ignored.
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void resizeScaleAndMove (bool delayed);
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protected slots:
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void resizeScaleAndMove (/*delayed = false*/);
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public:
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void finalize ();
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public:
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virtual void execute ();
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virtual void unexecute ();
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protected:
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kpSelection m_originalSelection;
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QPoint m_newTopLeft;
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int m_newWidth, m_newHeight;
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QTimer *m_smoothScaleTimer;
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};
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class kpToolSelectionDestroyCommand : public kpNamedCommand
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{
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public:
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kpToolSelectionDestroyCommand (const QString &name, bool pushOntoDocument,
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kpMainWindow *mainWindow);
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virtual ~kpToolSelectionDestroyCommand ();
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virtual int size () const;
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virtual void execute ();
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virtual void unexecute ();
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private:
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bool m_pushOntoDocument;
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QPixmap m_oldDocPixmap;
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kpSelection *m_oldSelection;
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int m_textRow, m_textCol;
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};
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#endif // __kp_tool_selection_h__
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