include/wx/generic/laywin.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        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 defined(__GNUG__) && !defined(__APPLE__)
  19 #pragma interface "laywin.h"
  20 #endif
  21
  22 #if wxUSE_SASH
  23     #include "wx/sashwin.h"
  24 #endif // wxUSE_SASH
  25
  26 BEGIN_DECLARE_EVENT_TYPES()
  27     DECLARE_EVENT_TYPE(wxEVT_QUERY_LAYOUT_INFO, 1500)
  28     DECLARE_EVENT_TYPE(wxEVT_CALCULATE_LAYOUT, 1501)
  29 END_DECLARE_EVENT_TYPES()
  30
  31 enum wxLayoutOrientation
  32 {
  33     wxLAYOUT_HORIZONTAL,
  34     wxLAYOUT_VERTICAL
  35 };
  36
  37 enum wxLayoutAlignment
  38 {
  39     wxLAYOUT_NONE,
  40     wxLAYOUT_TOP,
  41     wxLAYOUT_LEFT,
  42     wxLAYOUT_RIGHT,
  43     wxLAYOUT_BOTTOM
  44 };
  45
  46 // Not sure this is necessary
  47 // Tell window which dimension we're sizing on
  48 #define wxLAYOUT_LENGTH_Y       0x0008
  49 #define wxLAYOUT_LENGTH_X       0x0000
  50
  51 // Use most recently used length
  52 #define wxLAYOUT_MRU_LENGTH     0x0010
  53
  54 // Only a query, so don't actually move it.
  55 #define wxLAYOUT_QUERY          0x0100
  56
  57 /*
  58  * This event is used to get information about window alignment,
  59  * orientation and size.
  60  */
  61
  62 class WXDLLEXPORT wxQueryLayoutInfoEvent: public wxEvent
  63 {
  64 public:
  65     wxQueryLayoutInfoEvent(wxWindowID id = 0)
  66     {
  67         SetEventType(wxEVT_QUERY_LAYOUT_INFO);
  68         m_requestedLength = 0;
  69         m_flags = 0;
  70         m_id = id;
  71         m_alignment = wxLAYOUT_TOP;
  72         m_orientation = wxLAYOUT_HORIZONTAL;
  73     }
  74
  75     // Read by the app
  76     void SetRequestedLength(int length) { m_requestedLength = length; }
  77     int GetRequestedLength() const { return m_requestedLength; }
  78
  79     void SetFlags(int flags) { m_flags = flags; }
  80     int GetFlags() const { return m_flags; }
  81
  82     // Set by the app
  83     void SetSize(const wxSize& size) { m_size = size; }
  84     wxSize GetSize() const { return m_size; }
  85
  86     void SetOrientation(wxLayoutOrientation orient) { m_orientation = orient; }
  87     wxLayoutOrientation GetOrientation() const { return m_orientation; }
  88
  89     void SetAlignment(wxLayoutAlignment align) { m_alignment = align; }
  90     wxLayoutAlignment GetAlignment() const { return m_alignment; }
  91
  92     virtual wxEvent *Clone() const { return new wxQueryLayoutInfoEvent(*this); }
  93
  94 protected:
  95     int                     m_flags;
  96     int                     m_requestedLength;
  97     wxSize                  m_size;
  98     wxLayoutOrientation     m_orientation;
  99     wxLayoutAlignment       m_alignment;
 100
 101 private:
 102     DECLARE_DYNAMIC_CLASS(wxQueryLayoutInfoEvent)
 103 };
 104
 105 typedef void (wxEvtHandler::*wxQueryLayoutInfoEventFunction)(wxQueryLayoutInfoEvent&);
 106
 107 #define EVT_QUERY_LAYOUT_INFO(func) \
 108     DECLARE_EVENT_TABLE_ENTRY( wxEVT_QUERY_LAYOUT_INFO, -1, -1, (wxObjectEventFunction) (wxEventFunction) (wxQueryLayoutInfoEventFunction) & func, NULL ),
 109
 110 /*
 111  * This event is used to take a bite out of the available client area.
 112  */
 113
 114 class WXDLLEXPORT wxCalculateLayoutEvent: public wxEvent
 115 {
 116 public:
 117     wxCalculateLayoutEvent(wxWindowID id = 0)
 118     {
 119         SetEventType(wxEVT_CALCULATE_LAYOUT);
 120         m_flags = 0;
 121         m_id = id;
 122     }
 123
 124     // Read by the app
 125     void SetFlags(int flags) { m_flags = flags; }
 126     int GetFlags() const { return m_flags; }
 127
 128     // Set by the app
 129     void SetRect(const wxRect& rect) { m_rect = rect; }
 130     wxRect GetRect() const { return m_rect; }
 131
 132     virtual wxEvent *Clone() const { return new wxCalculateLayoutEvent(*this); }
 133
 134 protected:
 135     int                     m_flags;
 136     wxRect                  m_rect;
 137
 138 private:
 139     DECLARE_DYNAMIC_CLASS(wxCalculateLayoutEvent)
 140 };
 141
 142 typedef void (wxEvtHandler::*wxCalculateLayoutEventFunction)(wxCalculateLayoutEvent&);
 143
 144 #define EVT_CALCULATE_LAYOUT(func) \
 145     DECLARE_EVENT_TABLE_ENTRY( wxEVT_CALCULATE_LAYOUT, -1, -1, (wxObjectEventFunction) (wxEventFunction) (wxCalculateLayoutEventFunction) & func, NULL ),
 146
 147 #if wxUSE_SASH
 148
 149 // This is window that can remember alignment/orientation, does its own layout,
 150 // and can provide sashes too. Useful for implementing docked windows with sashes in
 151 // an IDE-style interface.
 152 class WXDLLEXPORT wxSashLayoutWindow: public wxSashWindow
 153 {
 154 public:
 155     wxSashLayoutWindow()
 156     {
 157         Init();
 158     }
 159
 160     wxSashLayoutWindow(wxWindow *parent, wxWindowID id = -1, const wxPoint& pos = wxDefaultPosition,
 161         const wxSize& size = wxDefaultSize, long style = wxSW_3D|wxCLIP_CHILDREN, const wxString& name = wxT("layoutWindow"))
 162     {
 163         Create(parent, id, pos, size, style, name);
 164     }
 165
 166     bool Create(wxWindow *parent, wxWindowID id = -1, const wxPoint& pos = wxDefaultPosition,
 167         const wxSize& size = wxDefaultSize, long style = wxSW_3D|wxCLIP_CHILDREN, const wxString& name = wxT("layoutWindow"));
 168
 169 // Accessors
 170     inline wxLayoutAlignment GetAlignment() const { return m_alignment; };
 171     inline wxLayoutOrientation GetOrientation() const { return m_orientation; };
 172
 173     inline void SetAlignment(wxLayoutAlignment align) { m_alignment = align; };
 174     inline void SetOrientation(wxLayoutOrientation orient) { m_orientation = orient; };
 175
 176     // Give the window default dimensions
 177     inline void SetDefaultSize(const wxSize& size) { m_defaultSize = size; }
 178
 179 // Event handlers
 180     // Called by layout algorithm to allow window to take a bit out of the
 181     // client rectangle, and size itself if not in wxLAYOUT_QUERY mode.
 182     void OnCalculateLayout(wxCalculateLayoutEvent& event);
 183
 184     // Called by layout algorithm to retrieve information about the window.
 185     void OnQueryLayoutInfo(wxQueryLayoutInfoEvent& event);
 186
 187 private:
 188     void Init();
 189
 190     wxLayoutAlignment           m_alignment;
 191     wxLayoutOrientation         m_orientation;
 192     wxSize                      m_defaultSize;
 193
 194 private:
 195     DECLARE_CLASS(wxSashLayoutWindow)
 196     DECLARE_EVENT_TABLE()
 197 };
 198
 199 #endif // wxUSE_SASH
 200
 201 class WXDLLEXPORT wxMDIParentFrame;
 202 class WXDLLEXPORT wxFrame;
 203
 204 // This class implements the layout algorithm
 205 class WXDLLEXPORT wxLayoutAlgorithm: public wxObject
 206 {
 207 public:
 208     wxLayoutAlgorithm() {}
 209
 210 #if wxUSE_MDI_ARCHITECTURE
 211     // The MDI client window is sized to whatever's left over.
 212     bool LayoutMDIFrame(wxMDIParentFrame* frame, wxRect* rect = (wxRect*) NULL);
 213 #endif // wxUSE_MDI_ARCHITECTURE
 214
 215     // mainWindow is sized to whatever's left over. This function for backward
 216     // compatibility; use LayoutWindow.
 217     bool LayoutFrame(wxFrame* frame, wxWindow* mainWindow = (wxWindow*) NULL);
 218
 219     // mainWindow is sized to whatever's left over.
 220     bool LayoutWindow(wxWindow* frame, wxWindow* mainWindow = (wxWindow*) NULL);
 221 };
 222
 223 #endif
 224     // _WX_LAYWIN_H_G_