include/wx/control.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/control.h
   3 // Purpose:     wxControl common interface
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     26.07.99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) wxWidgets team
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_CONTROL_H_BASE_
  13 #define _WX_CONTROL_H_BASE_
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 #include "wx/defs.h"
  20
  21 #if wxUSE_CONTROLS
  22
  23 #include "wx/window.h"      // base class
  24
  25 extern WXDLLIMPEXP_DATA_CORE(const char) wxControlNameStr[];
  26
  27
  28 // ----------------------------------------------------------------------------
  29 // Ellipsize() constants
  30 // ----------------------------------------------------------------------------
  31
  32 enum wxEllipsizeFlags
  33 {
  34     wxELLIPSIZE_FLAGS_NONE = 0,
  35     wxELLIPSIZE_FLAGS_PROCESS_MNEMONICS = 1,
  36     wxELLIPSIZE_FLAGS_EXPAND_TABS = 2,
  37
  38     wxELLIPSIZE_FLAGS_DEFAULT = wxELLIPSIZE_FLAGS_PROCESS_MNEMONICS |
  39                                 wxELLIPSIZE_FLAGS_EXPAND_TABS
  40 };
  41
  42 // NB: Don't change the order of these values, they're the same as in
  43 //     PangoEllipsizeMode enum.
  44 enum wxEllipsizeMode
  45 {
  46     wxELLIPSIZE_NONE,
  47     wxELLIPSIZE_START,
  48     wxELLIPSIZE_MIDDLE,
  49     wxELLIPSIZE_END
  50 };
  51
  52 // ----------------------------------------------------------------------------
  53 // wxControl is the base class for all controls
  54 // ----------------------------------------------------------------------------
  55
  56 class WXDLLIMPEXP_CORE wxControlBase : public wxWindow
  57 {
  58 public:
  59     wxControlBase() { }
  60
  61     virtual ~wxControlBase();
  62
  63     // Create() function adds the validator parameter
  64     bool Create(wxWindow *parent, wxWindowID id,
  65                 const wxPoint& pos = wxDefaultPosition,
  66                 const wxSize& size = wxDefaultSize,
  67                 long style = 0,
  68                 const wxValidator& validator = wxDefaultValidator,
  69                 const wxString& name = wxControlNameStr);
  70
  71     // get the control alignment (left/right/centre, top/bottom/centre)
  72     int GetAlignment() const { return m_windowStyle & wxALIGN_MASK; }
  73
  74     // set label with mnemonics
  75     virtual void SetLabel(const wxString& label)
  76     {
  77         m_labelOrig = label;
  78
  79         InvalidateBestSize();
  80
  81         wxWindow::SetLabel(label);
  82     }
  83
  84     // return the original string, as it was passed to SetLabel()
  85     // (i.e. with wx-style mnemonics)
  86     virtual wxString GetLabel() const { return m_labelOrig; }
  87
  88     // set label text (mnemonics will be escaped)
  89     virtual void SetLabelText(const wxString& text)
  90     {
  91         SetLabel(EscapeMnemonics(text));
  92     }
  93
  94     // get just the text of the label, without mnemonic characters ('&')
  95     virtual wxString GetLabelText() const { return GetLabelText(GetLabel()); }
  96
  97     // controls by default inherit the colours of their parents, if a
  98     // particular control class doesn't want to do it, it can override
  99     // ShouldInheritColours() to return false
 100     virtual bool ShouldInheritColours() const { return true; }
 101
 102
 103     // WARNING: this doesn't work for all controls nor all platforms!
 104     //
 105     // simulates the event of given type (i.e. wxButton::Command() is just as
 106     // if the button was clicked)
 107     virtual void Command(wxCommandEvent &event);
 108
 109     virtual bool SetFont(const wxFont& font);
 110
 111     // wxControl-specific processing after processing the update event
 112     virtual void DoUpdateWindowUI(wxUpdateUIEvent& event);
 113
 114
 115
 116     // static utilities for mnemonics char (&) handling
 117     // ------------------------------------------------
 118
 119     // returns the given string without mnemonic characters ('&')
 120     static wxString GetLabelText(const wxString& label);
 121
 122     // returns the given string without mnemonic characters ('&')
 123     // this function is identic to GetLabelText() and is provided for clarity
 124     // and for symmetry with the wxStaticText::RemoveMarkup() function.
 125     static wxString RemoveMnemonics(const wxString& str);
 126
 127     // escapes (by doubling them) the mnemonics
 128     static wxString EscapeMnemonics(const wxString& str);
 129
 130
 131     // miscellaneous static utilities
 132     // ------------------------------
 133
 134     // replaces parts of the given (multiline) string with an ellipsis if needed
 135     static wxString Ellipsize(const wxString& label, const wxDC& dc,
 136                               wxEllipsizeMode mode, int maxWidth,
 137                               int flags = wxELLIPSIZE_FLAGS_DEFAULT);
 138
 139     // return the accel index in the string or -1 if none and puts the modified
 140     // string into second parameter if non NULL
 141     static int FindAccelIndex(const wxString& label,
 142                               wxString *labelOnly = NULL);
 143
 144     // this is a helper for the derived class GetClassDefaultAttributes()
 145     // implementation: it returns the right colours for the classes which
 146     // contain something else (e.g. wxListBox, wxTextCtrl, ...) instead of
 147     // being simple controls (such as wxButton, wxCheckBox, ...)
 148     static wxVisualAttributes
 149         GetCompositeControlsDefaultAttributes(wxWindowVariant variant);
 150
 151 protected:
 152     // choose the default border for this window
 153     virtual wxBorder GetDefaultBorder() const;
 154
 155     // creates the control (calls wxWindowBase::CreateBase inside) and adds it
 156     // to the list of parents children
 157     bool CreateControl(wxWindowBase *parent,
 158                        wxWindowID id,
 159                        const wxPoint& pos,
 160                        const wxSize& size,
 161                        long style,
 162                        const wxValidator& validator,
 163                        const wxString& name);
 164
 165     // initialize the common fields of wxCommandEvent
 166     void InitCommandEvent(wxCommandEvent& event) const;
 167
 168     // Ellipsize() helper:
 169     static wxString DoEllipsizeSingleLine(const wxString& label, const wxDC& dc,
 170                                           wxEllipsizeMode mode, int maxWidth,
 171                                           int replacementWidth, int marginWidth);
 172
 173     // this field contains the label in wx format, i.e. with '&' mnemonics
 174     wxString m_labelOrig;
 175
 176     wxDECLARE_NO_COPY_CLASS(wxControlBase);
 177 };
 178
 179 // ----------------------------------------------------------------------------
 180 // include platform-dependent wxControl declarations
 181 // ----------------------------------------------------------------------------
 182
 183 #if defined(__WXUNIVERSAL__)
 184     #include "wx/univ/control.h"
 185 #elif defined(__WXPALMOS__)
 186     #include "wx/palmos/control.h"
 187 #elif defined(__WXMSW__)
 188     #include "wx/msw/control.h"
 189 #elif defined(__WXMOTIF__)
 190     #include "wx/motif/control.h"
 191 #elif defined(__WXGTK20__)
 192     #include "wx/gtk/control.h"
 193 #elif defined(__WXGTK__)
 194     #include "wx/gtk1/control.h"
 195 #elif defined(__WXMAC__)
 196     #include "wx/osx/control.h"
 197 #elif defined(__WXCOCOA__)
 198     #include "wx/cocoa/control.h"
 199 #elif defined(__WXPM__)
 200     #include "wx/os2/control.h"
 201 #endif
 202
 203 #endif // wxUSE_CONTROLS
 204
 205 #endif
 206     // _WX_CONTROL_H_BASE_