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 #ifdef __GNUG__
  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 DECLARE_DYNAMIC_CLASS(wxQueryLayoutInfoEvent)
  65 public:
  66
  67     wxQueryLayoutInfoEvent(wxWindowID id = 0)
  68     {
  69         SetEventType(wxEVT_QUERY_LAYOUT_INFO);
  70         m_requestedLength = 0;
  71         m_flags = 0;
  72         m_id = id;
  73         m_alignment = wxLAYOUT_TOP;
  74         m_orientation = wxLAYOUT_HORIZONTAL;
  75     }
  76
  77     // Read by the app
  78     void SetRequestedLength(int length) { m_requestedLength = length; }
  79     int GetRequestedLength() const { return m_requestedLength; }
  80
  81     void SetFlags(int flags) { m_flags = flags; }
  82     int GetFlags() const { return m_flags; }
  83
  84     // Set by the app
  85     void SetSize(const wxSize& size) { m_size = size; }
  86     wxSize GetSize() const { return m_size; }
  87
  88     void SetOrientation(wxLayoutOrientation orient) { m_orientation = orient; }
  89     wxLayoutOrientation GetOrientation() const { return m_orientation; }
  90
  91     void SetAlignment(wxLayoutAlignment align) { m_alignment = align; }
  92     wxLayoutAlignment GetAlignment() const { return m_alignment; }
  93
  94     virtual wxEvent *Clone() const { return new wxQueryLayoutInfoEvent(*this); }
  95
  96 protected:
  97     int                     m_flags;
  98     int                     m_requestedLength;
  99     wxSize                  m_size;
 100     wxLayoutOrientation     m_orientation;
 101     wxLayoutAlignment       m_alignment;
 102
 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 DECLARE_DYNAMIC_CLASS(wxCalculateLayoutEvent)
 117 public:
 118     wxCalculateLayoutEvent(wxWindowID id = 0)
 119     {
 120         SetEventType(wxEVT_CALCULATE_LAYOUT);
 121         m_flags = 0;
 122         m_id = id;
 123     }
 124
 125     // Read by the app
 126     void SetFlags(int flags) { m_flags = flags; }
 127     int GetFlags() const { return m_flags; }
 128
 129     // Set by the app
 130     void SetRect(const wxRect& rect) { m_rect = rect; }
 131     wxRect GetRect() const { return m_rect; }
 132
 133     virtual wxEvent *Clone() const { return new wxCalculateLayoutEvent(*this); }
 134
 135 protected:
 136     int                     m_flags;
 137     wxRect                  m_rect;
 138 };
 139
 140 typedef void (wxEvtHandler::*wxCalculateLayoutEventFunction)(wxCalculateLayoutEvent&);
 141
 142 #define EVT_CALCULATE_LAYOUT(func) \
 143     DECLARE_EVENT_TABLE_ENTRY( wxEVT_CALCULATE_LAYOUT, -1, -1, (wxObjectEventFunction) (wxEventFunction) (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 WXDLLEXPORT wxSashLayoutWindow: public wxSashWindow
 151 {
 152     DECLARE_CLASS(wxSashLayoutWindow)
 153 public:
 154     wxSashLayoutWindow()
 155     {
 156         Init();
 157     }
 158
 159     wxSashLayoutWindow(wxWindow *parent, wxWindowID id = -1, const wxPoint& pos = wxDefaultPosition,
 160         const wxSize& size = wxDefaultSize, long style = wxSW_3D|wxCLIP_CHILDREN, const wxString& name = "layoutWindow")
 161     {
 162         Create(parent, id, pos, size, style, name);
 163     }
 164
 165     bool Create(wxWindow *parent, wxWindowID id = -1, const wxPoint& pos = wxDefaultPosition,
 166         const wxSize& size = wxDefaultSize, long style = wxSW_3D|wxCLIP_CHILDREN, const wxString& name = "layoutWindow");
 167
 168 // Accessors
 169     inline wxLayoutAlignment GetAlignment() const { return m_alignment; };
 170     inline wxLayoutOrientation GetOrientation() const { return m_orientation; };
 171
 172     inline void SetAlignment(wxLayoutAlignment align) { m_alignment = align; };
 173     inline void SetOrientation(wxLayoutOrientation orient) { m_orientation = orient; };
 174
 175     // Give the window default dimensions
 176     inline void SetDefaultSize(const wxSize& size) { m_defaultSize = size; }
 177
 178 // Event handlers
 179     // Called by layout algorithm to allow window to take a bit out of the
 180     // client rectangle, and size itself if not in wxLAYOUT_QUERY mode.
 181     void OnCalculateLayout(wxCalculateLayoutEvent& event);
 182
 183     // Called by layout algorithm to retrieve information about the window.
 184     void OnQueryLayoutInfo(wxQueryLayoutInfoEvent& event);
 185
 186 private:
 187     void Init();
 188
 189     wxLayoutAlignment           m_alignment;
 190     wxLayoutOrientation         m_orientation;
 191     wxSize                      m_defaultSize;
 192
 193 DECLARE_EVENT_TABLE()
 194 };
 195
 196 #endif // wxUSE_SASH
 197
 198 class WXDLLEXPORT wxMDIParentFrame;
 199 class WXDLLEXPORT wxFrame;
 200
 201 // This class implements the layout algorithm
 202 class WXDLLEXPORT wxLayoutAlgorithm: public wxObject
 203 {
 204 public:
 205     wxLayoutAlgorithm() {}
 206
 207 #if wxUSE_MDI_ARCHITECTURE
 208     // The MDI client window is sized to whatever's left over.
 209     bool LayoutMDIFrame(wxMDIParentFrame* frame, wxRect* rect = (wxRect*) NULL);
 210 #endif // wxUSE_MDI_ARCHITECTURE
 211
 212     // mainWindow is sized to whatever's left over. This function for backward
 213     // compatibility; use LayoutWindow.
 214     bool LayoutFrame(wxFrame* frame, wxWindow* mainWindow = (wxWindow*) NULL);
 215
 216     // mainWindow is sized to whatever's left over.
 217     bool LayoutWindow(wxWindow* frame, wxWindow* mainWindow = (wxWindow*) NULL);
 218 };
 219
 220 #endif
 221     // _WX_LAYWIN_H_G_