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