include/wx/generic/laywin.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/generic/laywin.h
   3 // Purpose:     Implements a simple layout algorithm, plus
   4 //              wxSashLayoutWindow which is an example of a window with
   5 //              layout-awareness (via event handlers). This is suited to
   6 //              IDE-style window layout.
   7 // Author:      Julian Smart
   8 // Modified by:
   9 // Created:     04/01/98
  10 // RCS-ID:      $Id$
  11 // Copyright:   (c) Julian Smart
  12 // Licence:     wxWindows licence
  13 /////////////////////////////////////////////////////////////////////////////
  14
  15 #ifndef _WX_LAYWIN_H_G_
  16 #define _WX_LAYWIN_H_G_
  17
  18 #if wxUSE_SASH
  19     #include "wx/sashwin.h"
  20 #endif // wxUSE_SASH
  21
  22 #include "wx/event.h"
  23
  24 class WXDLLIMPEXP_FWD_ADV wxQueryLayoutInfoEvent;
  25 class WXDLLIMPEXP_FWD_ADV wxCalculateLayoutEvent;
  26
  27 wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_ADV, wxEVT_QUERY_LAYOUT_INFO, wxQueryLayoutInfoEvent );
  28 wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_ADV, wxEVT_CALCULATE_LAYOUT,  wxCalculateLayoutEvent );
  29
  30 enum wxLayoutOrientation
  31 {
  32     wxLAYOUT_HORIZONTAL,
  33     wxLAYOUT_VERTICAL
  34 };
  35
  36 enum wxLayoutAlignment
  37 {
  38     wxLAYOUT_NONE,
  39     wxLAYOUT_TOP,
  40     wxLAYOUT_LEFT,
  41     wxLAYOUT_RIGHT,
  42     wxLAYOUT_BOTTOM
  43 };
  44
  45 // Not sure this is necessary
  46 // Tell window which dimension we're sizing on
  47 #define wxLAYOUT_LENGTH_Y       0x0008
  48 #define wxLAYOUT_LENGTH_X       0x0000
  49
  50 // Use most recently used length
  51 #define wxLAYOUT_MRU_LENGTH     0x0010
  52
  53 // Only a query, so don't actually move it.
  54 #define wxLAYOUT_QUERY          0x0100
  55
  56 /*
  57  * This event is used to get information about window alignment,
  58  * orientation and size.
  59  */
  60
  61 class WXDLLIMPEXP_ADV wxQueryLayoutInfoEvent: public wxEvent
  62 {
  63 public:
  64     wxQueryLayoutInfoEvent(wxWindowID id = 0)
  65     {
  66         SetEventType(wxEVT_QUERY_LAYOUT_INFO);
  67         m_requestedLength = 0;
  68         m_flags = 0;
  69         m_id = id;
  70         m_alignment = wxLAYOUT_TOP;
  71         m_orientation = wxLAYOUT_HORIZONTAL;
  72     }
  73
  74     // Read by the app
  75     void SetRequestedLength(int length) { m_requestedLength = length; }
  76     int GetRequestedLength() const { return m_requestedLength; }
  77
  78     void SetFlags(int flags) { m_flags = flags; }
  79     int GetFlags() const { return m_flags; }
  80
  81     // Set by the app
  82     void SetSize(const wxSize& size) { m_size = size; }
  83     wxSize GetSize() const { return m_size; }
  84
  85     void SetOrientation(wxLayoutOrientation orient) { m_orientation = orient; }
  86     wxLayoutOrientation GetOrientation() const { return m_orientation; }
  87
  88     void SetAlignment(wxLayoutAlignment align) { m_alignment = align; }
  89     wxLayoutAlignment GetAlignment() const { return m_alignment; }
  90
  91     virtual wxEvent *Clone() const { return new wxQueryLayoutInfoEvent(*this); }
  92
  93 protected:
  94     int                     m_flags;
  95     int                     m_requestedLength;
  96     wxSize                  m_size;
  97     wxLayoutOrientation     m_orientation;
  98     wxLayoutAlignment       m_alignment;
  99
 100 private:
 101     DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxQueryLayoutInfoEvent)
 102 };
 103
 104 typedef void (wxEvtHandler::*wxQueryLayoutInfoEventFunction)(wxQueryLayoutInfoEvent&);
 105
 106 #define wxQueryLayoutInfoEventHandler( func ) \
 107     wxEVENT_HANDLER_CAST( wxQueryLayoutInfoEventFunction, func )
 108
 109 #define EVT_QUERY_LAYOUT_INFO(func) \
 110     wxDECLARE_EVENT_TABLE_ENTRY( wxEVT_QUERY_LAYOUT_INFO, wxID_ANY, wxID_ANY, wxQueryLayoutInfoEventHandler( func ), NULL ),
 111
 112 /*
 113  * This event is used to take a bite out of the available client area.
 114  */
 115
 116 class WXDLLIMPEXP_ADV wxCalculateLayoutEvent: public wxEvent
 117 {
 118 public:
 119     wxCalculateLayoutEvent(wxWindowID id = 0)
 120     {
 121         SetEventType(wxEVT_CALCULATE_LAYOUT);
 122         m_flags = 0;
 123         m_id = id;
 124     }
 125
 126     // Read by the app
 127     void SetFlags(int flags) { m_flags = flags; }
 128     int GetFlags() const { return m_flags; }
 129
 130     // Set by the app
 131     void SetRect(const wxRect& rect) { m_rect = rect; }
 132     wxRect GetRect() const { return m_rect; }
 133
 134     virtual wxEvent *Clone() const { return new wxCalculateLayoutEvent(*this); }
 135
 136 protected:
 137     int                     m_flags;
 138     wxRect                  m_rect;
 139
 140 private:
 141     DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxCalculateLayoutEvent)
 142 };
 143
 144 typedef void (wxEvtHandler::*wxCalculateLayoutEventFunction)(wxCalculateLayoutEvent&);
 145
 146 #define wxCalculateLayoutEventHandler( func ) wxEVENT_HANDLER_CAST(wxCalculateLayoutEventFunction, func)
 147
 148 #define EVT_CALCULATE_LAYOUT(func) \
 149     wxDECLARE_EVENT_TABLE_ENTRY( wxEVT_CALCULATE_LAYOUT, wxID_ANY, wxID_ANY, wxCalculateLayoutEventHandler( func ), NULL ),
 150
 151 #if wxUSE_SASH
 152
 153 // This is window that can remember alignment/orientation, does its own layout,
 154 // and can provide sashes too. Useful for implementing docked windows with sashes in
 155 // an IDE-style interface.
 156 class WXDLLIMPEXP_ADV wxSashLayoutWindow: public wxSashWindow
 157 {
 158 public:
 159     wxSashLayoutWindow()
 160     {
 161         Init();
 162     }
 163
 164     wxSashLayoutWindow(wxWindow *parent, wxWindowID id = wxID_ANY, const wxPoint& pos = wxDefaultPosition,
 165         const wxSize& size = wxDefaultSize, long style = wxSW_3D|wxCLIP_CHILDREN, const wxString& name = wxT("layoutWindow"))
 166     {
 167         Create(parent, id, pos, size, style, name);
 168     }
 169
 170     bool Create(wxWindow *parent, wxWindowID id = wxID_ANY, const wxPoint& pos = wxDefaultPosition,
 171         const wxSize& size = wxDefaultSize, long style = wxSW_3D|wxCLIP_CHILDREN, const wxString& name = wxT("layoutWindow"));
 172
 173 // Accessors
 174     inline wxLayoutAlignment GetAlignment() const { return m_alignment; }
 175     inline wxLayoutOrientation GetOrientation() const { return m_orientation; }
 176
 177     inline void SetAlignment(wxLayoutAlignment align) { m_alignment = align; }
 178     inline void SetOrientation(wxLayoutOrientation orient) { m_orientation = orient; }
 179
 180     // Give the window default dimensions
 181     inline void SetDefaultSize(const wxSize& size) { m_defaultSize = size; }
 182
 183 // Event handlers
 184     // Called by layout algorithm to allow window to take a bit out of the
 185     // client rectangle, and size itself if not in wxLAYOUT_QUERY mode.
 186     void OnCalculateLayout(wxCalculateLayoutEvent& event);
 187
 188     // Called by layout algorithm to retrieve information about the window.
 189     void OnQueryLayoutInfo(wxQueryLayoutInfoEvent& event);
 190
 191 private:
 192     void Init();
 193
 194     wxLayoutAlignment           m_alignment;
 195     wxLayoutOrientation         m_orientation;
 196     wxSize                      m_defaultSize;
 197
 198 private:
 199     DECLARE_DYNAMIC_CLASS_NO_COPY(wxSashLayoutWindow)
 200     DECLARE_EVENT_TABLE()
 201 };
 202
 203 #endif // wxUSE_SASH
 204
 205 class WXDLLIMPEXP_FWD_CORE wxMDIParentFrame;
 206 class WXDLLIMPEXP_FWD_CORE wxFrame;
 207
 208 // This class implements the layout algorithm
 209 class WXDLLIMPEXP_ADV wxLayoutAlgorithm: public wxObject
 210 {
 211 public:
 212     wxLayoutAlgorithm() {}
 213
 214 #if wxUSE_MDI_ARCHITECTURE
 215     // The MDI client window is sized to whatever's left over.
 216     bool LayoutMDIFrame(wxMDIParentFrame* frame, wxRect* rect = NULL);
 217 #endif // wxUSE_MDI_ARCHITECTURE
 218
 219     // mainWindow is sized to whatever's left over. This function for backward
 220     // compatibility; use LayoutWindow.
 221     bool LayoutFrame(wxFrame* frame, wxWindow* mainWindow = NULL);
 222
 223     // mainWindow is sized to whatever's left over.
 224     bool LayoutWindow(wxWindow* frame, wxWindow* mainWindow = NULL);
 225 };
 226
 227 #endif
 228     // _WX_LAYWIN_H_G_