utils/framelayout/src/rowdragpl.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        No names yet.
   3 // Purpose:     Contrib. demo
   4 // Author:      Aleksandras Gluchovas
   5 // Modified by:
   6 // Created:     06/10/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Aleksandras Gluchovas
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef __ROWDRAGPL_G__
  13 #define __ROWDRAGPL_G__
  14
  15 #include "controlbar.h"
  16
  17 /*
  18  * Plugin adds row-dragging fuctionality to the pane.
  19  * Handles mouse/movement and pane-background erasing plugin-events.
  20  * Behaviour and appearence resembles drag & drop posotioning
  21  * of the toolbar-rows int Netscape Comunicator 4.xx.
  22  */
  23
  24 class cbRowDragPlugin : public cbPluginBase
  25 {
  26         DECLARE_DYNAMIC_CLASS( cbRowDragPlugin )
  27 public:
  28         // background colours for the highlighted/unhighlighted icons
  29
  30         wxColour mHightColor;      // light-blue for NC-look
  31         wxColour mLowColor;        // light-gray -/-
  32         wxColour mTrianInnerColor; // blue       -/-
  33         wxPen    mTrianInnerPen;   // black      -/-
  34
  35 protected:
  36         friend class cbRowDragPluginSerializer;
  37
  38         // drag & drop state variables
  39         bool    mDragStarted;
  40         bool    mDecisionMode;
  41         wxPoint mDragOrigin;
  42         int     mCurDragOfs;
  43         bool    mCaptureIsOn;
  44
  45         // saved margins of the pane
  46         int mSvTopMargin;
  47         int mSvBottomMargin;
  48         int mSvLeftMargin;
  49         int mSvRightMargin;
  50
  51         //on-screen drawing state variables
  52         wxBitmap* mpPaneImage;
  53         wxBitmap* mpRowImage;
  54         wxBitmap* mpCombinedImage;
  55
  56         wxScreenDC* mpScrDc;
  57         wxRect    mCombRect;
  58         wxSize    mRowImgDim;
  59         int       mInitalRowOfs;
  60
  61         // NOTE:: if mpRowInFocus is not NULL, then mCollapsedIconInFocus is -1,
  62         //        and v.v. (two different items cannot be in focus at the same time)
  63
  64         cbRowInfo* mpRowInFocus;
  65         int        mCollapsedIconInFocus;
  66
  67         cbDockPane* mpPane; // is set up temorarely, while handling event
  68
  69         wxList      mHiddenBars;
  70
  71         wxBitmap* CaptureDCArea( wxDC& dc, wxRect& area );
  72
  73         // helpers for drag&drop
  74
  75         int GetHRowsCountForPane( cbDockPane* pPane );
  76
  77         void SetMouseCapture( bool captureOn );
  78         void PrepareForRowDrag();
  79         void ShowDraggedRow( int offset );
  80         void ShowPaneImage();
  81         void FinishOnScreenDraw();
  82         void CollapseRow( cbRowInfo* pRow );
  83         void ExpandRow( int collapsedIconIdx );
  84         void InsertDraggedRowBefore( cbRowInfo* pBeforeRow );
  85         bool ItemIsInFocus();
  86         void CheckPrevItemInFocus( cbRowInfo* pRow, int iconIdx );
  87         void UnhiglightItemInFocus();
  88
  89         cbRowInfo* GetFirstRow();
  90
  91         // "hard-coded metafile" for NN-look
  92
  93         virtual void DrawTrianUp( wxRect& inRect, wxDC& dc );
  94         virtual void DrawTrianDown( wxRect& inRect, wxDC& dc );
  95         virtual void DrawTrianRight( wxRect& inRect, wxDC& dc );
  96         virtual void Draw3DPattern( wxRect& inRect, wxDC& dc );
  97         virtual void DrawRombShades( wxPoint& p1, wxPoint& p2, wxPoint& p3, wxPoint& p4, wxDC& dc );
  98         virtual void DrawOrtoRomb( wxRect& inRect, wxDC& dc, wxBrush& bkBrush );
  99         virtual void DrawRomb( wxRect& inRect, wxDC& dc, wxBrush& bkBrush );
 100         virtual void Draw3DRect( wxRect& inRect, wxDC& dc, wxBrush& bkBrush );
 101         virtual void DrawRectShade( wxRect& inRect, wxDC& dc,
 102                                                                 int level, wxPen& upperPen, wxPen& lowerPen );
 103
 104         virtual void GetRowHintRect( cbRowInfo* pRow, wxRect& rect );
 105         virtual void GetCollapsedInconRect( int iconIdx, wxRect& rect );
 106
 107         virtual int  GetCollapsedIconsPos();
 108
 109 public:
 110
 111         cbRowDragPlugin(void);
 112
 113         cbRowDragPlugin( wxFrameLayout* pLayout, int paneMask = wxALL_PANES );
 114         virtual ~cbRowDragPlugin();
 115
 116         virtual cbPluginBase* Clone() { return new cbRowDragPlugin(NULL,0); }
 117
 118         virtual void OnInitPlugin();
 119
 120         // handlers for plugin events (appearence-independent logic)
 121
 122         void OnMouseMove  ( cbMotionEvent& event );
 123         void OnLButtonDown( cbLeftDownEvent& event );
 124         void OnLButtonUp  ( cbLeftUpEvent& event );
 125         void OnDrawPaneBackground( cbDrawPaneDecorEvent& event );
 126
 127         // overridables (appearence-depedent)
 128
 129         virtual void DrawCollapsedRowIcon( int index, wxDC& dc, bool isHighlighted );
 130         virtual void DrawCollapsedRowsBorder( wxDC& dc );
 131         virtual void DrawRowsDragHintsBorder( wxDC& dc );
 132         virtual void DrawRowDragHint( cbRowInfo* pRow, wxDC& dc, bool isHighlighted );
 133         virtual void DrawEmptyRow( wxDC& dc, wxRect& rowBounds );
 134
 135         virtual int GetCollapsedRowIconHeight();
 136         virtual int GetRowDragHintWidth();
 137
 138         virtual void SetPaneMargins();
 139
 140
 141         virtual bool HitTestCollapsedRowIcon( int iconIdx, const wxPoint& pos );
 142         virtual bool HitTestRowDragHint( cbRowInfo* pRow, const wxPoint& pos );
 143
 144         DECLARE_EVENT_TABLE()
 145 };
 146
 147 // internal helper-class
 148
 149 class cbHiddenBarInfo : public wxObject
 150 {
 151         DECLARE_DYNAMIC_CLASS( cbHiddenBarInfo )
 152 public:
 153         cbBarInfo* mpBar;
 154         int        mRowNo;
 155         int        mIconNo;
 156         int        mAlignment;
 157 };
 158
 159 #endif