include/wx/generic/sashwin.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        sashwin.h
   3 // Purpose:     wxSashWindow implementation. A sash window has an optional
   4 //              sash on each edge, allowing it to be dragged. An event
   5 //              is generated when the sash is released.
   6 // Author:      Julian Smart
   7 // Modified by:
   8 // Created:     01/02/97
   9 // RCS-ID:      $Id$
  10 // Copyright:   (c) Julian Smart
  11 // Licence:     wxWindows licence
  12 /////////////////////////////////////////////////////////////////////////////
  13
  14 #ifndef _WX_SASHWIN_H_G_
  15 #define _WX_SASHWIN_H_G_
  16
  17 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  18 #pragma interface "sashwin.h"
  19 #endif
  20
  21 #if wxUSE_SASH
  22
  23 #include "wx/defs.h"
  24 #include "wx/window.h"
  25 #include "wx/string.h"
  26
  27 #define wxSASH_DRAG_NONE       0
  28 #define wxSASH_DRAG_DRAGGING   1
  29 #define wxSASH_DRAG_LEFT_DOWN  2
  30
  31 enum wxSashEdgePosition {
  32     wxSASH_TOP = 0,
  33     wxSASH_RIGHT,
  34     wxSASH_BOTTOM,
  35     wxSASH_LEFT,
  36     wxSASH_NONE = 100
  37 };
  38
  39 /*
  40  * wxSashEdge represents one of the four edges of a window.
  41  */
  42
  43 class WXDLLIMPEXP_ADV wxSashEdge
  44 {
  45 public:
  46     wxSashEdge() { m_show = false; m_border = false; m_margin = 0; }
  47
  48     bool    m_show;     // Is the sash showing?
  49     bool    m_border;   // Do we draw a border?
  50     int     m_margin;   // The margin size
  51 };
  52
  53 /*
  54  * wxSashWindow flags
  55  */
  56
  57 #define wxSW_NOBORDER         0x0000
  58 //#define wxSW_3D               0x0010
  59 #define wxSW_BORDER           0x0020
  60 #define wxSW_3DSASH           0x0040
  61 #define wxSW_3DBORDER         0x0080
  62 #define wxSW_3D (wxSW_3DSASH | wxSW_3DBORDER)
  63
  64 /*
  65  * wxSashWindow allows any of its edges to have a sash which can be dragged
  66  * to resize the window. The actual content window will be created as a child
  67  * of wxSashWindow.
  68  */
  69
  70 class WXDLLIMPEXP_ADV wxSashWindow: public wxWindow
  71 {
  72 public:
  73     // Default constructor
  74     wxSashWindow()
  75     {
  76         Init();
  77     }
  78
  79     // Normal constructor
  80     wxSashWindow(wxWindow *parent, wxWindowID id = wxID_ANY, const wxPoint& pos = wxDefaultPosition,
  81         const wxSize& size = wxDefaultSize, long style = wxSW_3D|wxCLIP_CHILDREN, const wxString& name = wxT("sashWindow"))
  82     {
  83         Init();
  84         Create(parent, id, pos, size, style, name);
  85     }
  86
  87     ~wxSashWindow();
  88
  89     bool Create(wxWindow *parent, wxWindowID id = wxID_ANY, const wxPoint& pos = wxDefaultPosition,
  90         const wxSize& size = wxDefaultSize, long style = wxSW_3D|wxCLIP_CHILDREN, const wxString& name = wxT("sashWindow"));
  91
  92     // Set whether there's a sash in this position
  93     void SetSashVisible(wxSashEdgePosition edge, bool sash);
  94
  95     // Get whether there's a sash in this position
  96     inline bool GetSashVisible(wxSashEdgePosition edge) const { return m_sashes[edge].m_show; }
  97
  98     // Set whether there's a border in this position
  99     inline void SetSashBorder(wxSashEdgePosition edge, bool border) { m_sashes[edge].m_border = border; }
 100
 101     // Get whether there's a border in this position
 102     inline bool HasBorder(wxSashEdgePosition edge) const { return m_sashes[edge].m_border; }
 103
 104     // Get border size
 105     inline int GetEdgeMargin(wxSashEdgePosition edge) const { return m_sashes[edge].m_margin; }
 106
 107     // Sets the default sash border size
 108     inline void SetDefaultBorderSize(int width) { m_borderSize = width; }
 109
 110     // Gets the default sash border size
 111     inline int GetDefaultBorderSize() const { return m_borderSize; }
 112
 113     // Sets the addition border size between child and sash window
 114     inline void SetExtraBorderSize(int width) { m_extraBorderSize = width; }
 115
 116     // Gets the addition border size between child and sash window
 117     inline int GetExtraBorderSize() const { return m_extraBorderSize; }
 118
 119     virtual void SetMinimumSizeX(int min) { m_minimumPaneSizeX = min; }
 120     virtual void SetMinimumSizeY(int min) { m_minimumPaneSizeY = min; }
 121     virtual int GetMinimumSizeX() const { return m_minimumPaneSizeX; }
 122     virtual int GetMinimumSizeY() const { return m_minimumPaneSizeY; }
 123
 124     virtual void SetMaximumSizeX(int max) { m_maximumPaneSizeX = max; }
 125     virtual void SetMaximumSizeY(int max) { m_maximumPaneSizeY = max; }
 126     virtual int GetMaximumSizeX() const { return m_maximumPaneSizeX; }
 127     virtual int GetMaximumSizeY() const { return m_maximumPaneSizeY; }
 128
 129 ////////////////////////////////////////////////////////////////////////////
 130 // Implementation
 131
 132     // Paints the border and sash
 133     void OnPaint(wxPaintEvent& event);
 134
 135     // Handles mouse events
 136     void OnMouseEvent(wxMouseEvent& ev);
 137
 138     // Adjusts the panes
 139     void OnSize(wxSizeEvent& event);
 140
 141 #if defined(__WXMSW__) || defined(__WXMAC__)
 142     // Handle cursor correctly
 143     void OnSetCursor(wxSetCursorEvent& event);
 144 #endif // wxMSW
 145
 146     // Draws borders
 147     void DrawBorders(wxDC& dc);
 148
 149     // Draws the sashes
 150     void DrawSash(wxSashEdgePosition edge, wxDC& dc);
 151
 152     // Draws the sashes
 153     void DrawSashes(wxDC& dc);
 154
 155     // Draws the sash tracker (for whilst moving the sash)
 156     void DrawSashTracker(wxSashEdgePosition edge, int x, int y);
 157
 158     // Tests for x, y over sash
 159     wxSashEdgePosition SashHitTest(int x, int y, int tolerance = 2);
 160
 161     // Resizes subwindows
 162     void SizeWindows();
 163
 164     // Initialize colours
 165     void InitColours();
 166
 167 private:
 168     void Init();
 169
 170     wxSashEdge  m_sashes[4];
 171     int         m_dragMode;
 172     wxSashEdgePosition m_draggingEdge;
 173     int         m_oldX;
 174     int         m_oldY;
 175     int         m_borderSize;
 176     int         m_extraBorderSize;
 177     int         m_firstX;
 178     int         m_firstY;
 179     int         m_minimumPaneSizeX;
 180     int         m_minimumPaneSizeY;
 181     int         m_maximumPaneSizeX;
 182     int         m_maximumPaneSizeY;
 183     wxCursor*   m_sashCursorWE;
 184     wxCursor*   m_sashCursorNS;
 185     wxColour    m_lightShadowColour;
 186     wxColour    m_mediumShadowColour;
 187     wxColour    m_darkShadowColour;
 188     wxColour    m_hilightColour;
 189     wxColour    m_faceColour;
 190     bool        m_mouseCaptured;
 191     wxCursor*   m_currentCursor;
 192
 193 private:
 194     DECLARE_DYNAMIC_CLASS(wxSashWindow)
 195     DECLARE_EVENT_TABLE()
 196     DECLARE_NO_COPY_CLASS(wxSashWindow)
 197 };
 198
 199 BEGIN_DECLARE_EVENT_TYPES()
 200     DECLARE_EXPORTED_EVENT_TYPE(WXDLLIMPEXP_ADV,
 201                                 wxEVT_SASH_DRAGGED, wxEVT_FIRST + 1200)
 202 END_DECLARE_EVENT_TYPES()
 203
 204 // #define wxEVT_SASH_DRAGGED (wxEVT_FIRST + 1200)
 205
 206 enum wxSashDragStatus
 207 {
 208     wxSASH_STATUS_OK,
 209     wxSASH_STATUS_OUT_OF_RANGE
 210 };
 211
 212 class WXDLLIMPEXP_ADV wxSashEvent: public wxCommandEvent
 213 {
 214 public:
 215     inline wxSashEvent(int id = 0, wxSashEdgePosition edge = wxSASH_NONE) {
 216      m_eventType = (wxEventType) wxEVT_SASH_DRAGGED; m_id = id; m_edge = edge; }
 217
 218     inline void SetEdge(wxSashEdgePosition edge) { m_edge = edge; }
 219     inline wxSashEdgePosition GetEdge() const { return m_edge; }
 220
 221     //// The rectangle formed by the drag operation
 222     inline void SetDragRect(const wxRect& rect) { m_dragRect = rect; }
 223     inline wxRect GetDragRect() const { return m_dragRect; }
 224
 225     //// Whether the drag caused the rectangle to be reversed (e.g.
 226     //// dragging the top below the bottom)
 227     inline void SetDragStatus(wxSashDragStatus status) { m_dragStatus = status; }
 228     inline wxSashDragStatus GetDragStatus() const { return m_dragStatus; }
 229
 230 private:
 231     wxSashEdgePosition  m_edge;
 232     wxRect              m_dragRect;
 233     wxSashDragStatus    m_dragStatus;
 234
 235 private:
 236     DECLARE_DYNAMIC_CLASS_NO_COPY(wxSashEvent)
 237 };
 238
 239 typedef void (wxEvtHandler::*wxSashEventFunction)(wxSashEvent&);
 240
 241 #define EVT_SASH_DRAGGED(id, fn) \
 242     DECLARE_EVENT_TABLE_ENTRY( wxEVT_SASH_DRAGGED, id, wxID_ANY, (wxObjectEventFunction) (wxEventFunction)  wxStaticCastEvent( wxSashEventFunction, & fn ), NULL ),
 243 #define EVT_SASH_DRAGGED_RANGE(id1, id2, fn) \
 244     DECLARE_EVENT_TABLE_ENTRY( wxEVT_SASH_DRAGGED, id1, id2, (wxObjectEventFunction) (wxEventFunction)  wxStaticCastEvent( wxSashEventFunction, & fn ), NULL ),
 245
 246 #endif // wxUSE_SASH
 247
 248 #endif
 249   // _WX_SASHWIN_H_G_