contrib/include/wx/fl/rowdragpl.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        rowdragpl.h
   3 // Purpose:     cbRowDragPlugin class header.
   4 // Author:      Aleksandras Gluchovas
   5 // Modified by:
   6 // Created:     06/10/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Aleksandras Gluchovas
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef __ROWDRAGPL_G__
  13 #define __ROWDRAGPL_G__
  14
  15 #ifdef __GNUG__
  16     #pragma interface "rowdragpl.h"
  17 #endif
  18
  19 #include "wx/fl/controlbar.h"
  20
  21 /*
  22 This plugin adds row-dragging functionality to the pane.
  23 It handles mouse movement and pane background-erasing plugin events.
  24 The behaviour and appearance resembles drag and drop positioning
  25 of the toolbar rows in Netscape Communicator 4.xx.
  26 */
  27
  28 class cbRowDragPlugin : public cbPluginBase
  29 {
  30     DECLARE_DYNAMIC_CLASS( cbRowDragPlugin )
  31 public:
  32     // background colours for the highlighted/unhighlighted icons
  33
  34     wxColour mHightColor;      // light-blue for NC-look
  35     wxColour mLowColor;        // light-gray -/-
  36     wxColour mTrianInnerColor; // blue       -/-
  37     wxPen    mTrianInnerPen;   // black      -/-
  38
  39 protected:
  40     friend class cbRowDragPluginSerializer;
  41
  42     // drag & drop state variables
  43     bool    mDragStarted;
  44     bool    mDecisionMode;
  45     wxPoint mDragOrigin;
  46     int     mCurDragOfs;
  47     bool    mCaptureIsOn;
  48
  49     // saved margins of the pane
  50     int mSvTopMargin;
  51     int mSvBottomMargin;
  52     int mSvLeftMargin;
  53     int mSvRightMargin;
  54
  55     // on-screen drawing state variables
  56     wxBitmap* mpPaneImage;
  57     wxBitmap* mpRowImage;
  58     wxBitmap* mpCombinedImage;
  59
  60     wxScreenDC* mpScrDc;
  61     wxRect    mCombRect;
  62     wxSize    mRowImgDim;
  63     int       mInitialRowOfs;
  64
  65     // NOTE:: if mpRowInFocus is not NULL, then mCollapsedIconInFocus is -1,
  66     //        and v.v. (two different items cannot be in focus at the same time)
  67
  68     cbRowInfo* mpRowInFocus;
  69     int        mCollapsedIconInFocus;
  70
  71     cbDockPane* mpPane; // is set up temorarely, while handling event
  72
  73     wxList      mHiddenBars;
  74
  75         // Helper for drag and drop.
  76     wxBitmap* CaptureDCArea( wxDC& dc, wxRect& area );
  77
  78         // Helper for drag and drop.
  79     int GetHRowsCountForPane( cbDockPane* pPane );
  80
  81         // Helper for drag and drop.
  82     void SetMouseCapture( bool captureOn );
  83
  84         // Helper for drag and drop.
  85     void PrepareForRowDrag();
  86
  87         // Helper for drag and drop.
  88     void ShowDraggedRow( int offset );
  89
  90         // Helper for drag and drop.
  91     void ShowPaneImage();
  92
  93         // Helper for drag and drop.
  94     void FinishOnScreenDraw();
  95
  96         // Helper for drag and drop.
  97     void CollapseRow( cbRowInfo* pRow );
  98
  99         // Helper for drag and drop.
 100     void ExpandRow( int collapsedIconIdx );
 101
 102         // Helper for drag and drop.
 103     void InsertDraggedRowBefore( cbRowInfo* pBeforeRow );
 104
 105         // Helper for drag and drop.
 106     bool ItemIsInFocus();
 107
 108         // Helper for drag and drop.
 109     void CheckPrevItemInFocus( cbRowInfo* pRow, int iconIdx );
 110
 111         // Helper for drag and drop.
 112     void UnhighlightItemInFocus();
 113
 114         // Helper for drag and drop.
 115     cbRowInfo* GetFirstRow();
 116
 117         // Implements 'hard-coded metafile' for Netscape Navigator look.
 118     virtual void DrawTrianUp( wxRect& inRect, wxDC& dc );
 119
 120         // Implements 'hard-coded metafile' for Netscape Navigator look.
 121     virtual void DrawTrianDown( wxRect& inRect, wxDC& dc );
 122
 123         // Implements 'hard-coded metafile' for Netscape Navigator look.
 124     virtual void DrawTrianRight( wxRect& inRect, wxDC& dc );
 125
 126         // Implements 'hard-coded metafile' for Netscape Navigator look.
 127     virtual void Draw3DPattern( wxRect& inRect, wxDC& dc );
 128
 129         // Implements 'hard-coded metafile' for Netscape Navigator look.
 130     virtual void DrawRombShades( wxPoint& p1, wxPoint& p2, wxPoint& p3, wxPoint& p4, wxDC& dc );
 131
 132         // Implements 'hard-coded metafile' for Netscape Navigator look.
 133     virtual void DrawOrtoRomb( wxRect& inRect, wxDC& dc, wxBrush& bkBrush );
 134
 135         // Implements 'hard-coded metafile' for Netscape Navigator look.
 136     virtual void DrawRomb( wxRect& inRect, wxDC& dc, wxBrush& bkBrush );
 137
 138         // Implements 'hard-coded metafile' for Netscape Navigator look.
 139     virtual void Draw3DRect( wxRect& inRect, wxDC& dc, wxBrush& bkBrush );
 140
 141         // Implements 'hard-coded metafile' for Netscape Navigator look.
 142     virtual void DrawRectShade( wxRect& inRect, wxDC& dc,
 143                                 int level, wxPen& upperPen, wxPen& lowerPen );
 144
 145         // Helper for drag and drop.
 146     virtual void GetRowHintRect( cbRowInfo* pRow, wxRect& rect );
 147
 148         // Helper for drag and drop.
 149     virtual void GetCollapsedInconRect( int iconIdx, wxRect& rect );
 150
 151         // Helper for drag and drop.
 152     virtual int GetCollapsedIconsPos();
 153
 154 public:
 155
 156         // Default constructor.
 157     cbRowDragPlugin();
 158
 159         // Constructor, taking paren layout frame and pane mask.
 160     cbRowDragPlugin( wxFrameLayout* pLayout, int paneMask = wxALL_PANES );
 161
 162         // Destructor.
 163     virtual ~cbRowDragPlugin();
 164
 165         // Clone function, returning a new instance of this class.
 166     virtual cbPluginBase* Clone() { return new cbRowDragPlugin(NULL,0); }
 167
 168         // Called to initialize this plugin.
 169     virtual void OnInitPlugin();
 170
 171         // Handles mouse move plugin events (appearance-independent logic).
 172     void OnMouseMove  ( cbMotionEvent& event );
 173
 174         // Handles left button down plugin events (appearance-independent logic).
 175     void OnLButtonDown( cbLeftDownEvent& event );
 176
 177         // Handles left button up plugin events (appearance-independent logic).
 178     void OnLButtonUp  ( cbLeftUpEvent& event );
 179
 180         // Handles pane drawing plugin events (appearance-independent logic).
 181     void OnDrawPaneBackground( cbDrawPaneDecorEvent& event );
 182
 183         // Draws collapsed row icon (appearance-dependent).
 184     virtual void DrawCollapsedRowIcon( int index, wxDC& dc, bool isHighlighted );
 185
 186         // Draws collapsed rows border (appearance-dependent).
 187     virtual void DrawCollapsedRowsBorder( wxDC& dc );
 188
 189         // Draws rows drag hints border (appearance-dependent).
 190     virtual void DrawRowsDragHintsBorder( wxDC& dc );
 191
 192         // Draws row drag hint (appearance-dependent).
 193     virtual void DrawRowDragHint( cbRowInfo* pRow, wxDC& dc, bool isHighlighted );
 194
 195         // Draws empty row (appearance-dependent).
 196     virtual void DrawEmptyRow( wxDC& dc, wxRect& rowBounds );
 197
 198         // Gets the collapsed row icon height.
 199     virtual int GetCollapsedRowIconHeight();
 200
 201         // Gets the row drag hint width.
 202     virtual int GetRowDragHintWidth();
 203
 204         // Sets the pane margins.
 205     virtual void SetPaneMargins();
 206
 207         // Test for the collapsed row icon position.
 208     virtual bool HitTestCollapsedRowIcon( int iconIdx, const wxPoint& pos );
 209
 210         // Test for the row drag hint position.
 211     virtual bool HitTestRowDragHint( cbRowInfo* pRow, const wxPoint& pos );
 212
 213     DECLARE_EVENT_TABLE()
 214 };
 215
 216 /*
 217 Internal helper class.
 218 */
 219
 220 class cbHiddenBarInfo : public wxObject
 221 {
 222     DECLARE_DYNAMIC_CLASS( cbHiddenBarInfo )
 223 public:
 224     cbBarInfo* mpBar;
 225     int        mRowNo;
 226     int        mIconNo;
 227     int        mAlignment;
 228 };
 229
 230 #endif /* __ROWDRAGPL_G__ */
 231