// Purpose: interface of wxControl
// Author: wxWidgets team
// RCS-ID: $Id$
-// Licence: wxWindows license
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
+/**
+ Flags used by wxControl::Ellipsize function.
+*/
+enum wxEllipsizeFlags
+{
+ /// No special flags.
+ wxELLIPSIZE_FLAGS_NONE = 0,
+
+ /**
+ Take mnemonics into account when calculating the text width.
+
+ With this flag when calculating the size of the passed string,
+ mnemonics characters (see wxControl::SetLabel) will be automatically
+ reduced to a single character. This leads to correct calculations only
+ if the string passed to Ellipsize() will be used with
+ wxControl::SetLabel. If you don't want ampersand to be interpreted as
+ mnemonics (e.g. because you use wxControl::SetLabelText) then don't use
+ this flag.
+ */
+ wxELLIPSIZE_FLAGS_PROCESS_MNEMONICS = 1,
+
+ /**
+ Expand tabs in spaces when calculating the text width.
+
+ This flag tells wxControl::Ellipsize() to calculate the width of tab
+ characters @c '\\t' as 6 spaces.
+ */
+ wxELLIPSIZE_FLAGS_EXPAND_TABS = 2,
+
+ /// The default flags for wxControl::Ellipsize.
+ wxELLIPSIZE_FLAGS_DEFAULT = wxELLIPSIZE_FLAGS_PROCESS_MNEMONICS|
+ wxELLIPSIZE_FLAGS_EXPAND_TABS
+};
+
+
+/**
+ The different ellipsization modes supported by the
+ wxControl::Ellipsize function.
+*/
+enum wxEllipsizeMode
+{
+ /// Don't ellipsize the text at all. @since 2.9.1
+ wxELLIPSIZE_NONE,
+
+ /// Put the ellipsis at the start of the string, if the string needs ellipsization.
+ wxELLIPSIZE_START,
+
+ /// Put the ellipsis in the middle of the string, if the string needs ellipsization.
+ wxELLIPSIZE_MIDDLE,
+
+ /// Put the ellipsis at the end of the string, if the string needs ellipsization.
+ wxELLIPSIZE_END
+};
+
/**
@class wxControl
A control is generally a small window which processes user input and/or
displays one or more item of data.
+ @beginEventEmissionTable{wxClipboardTextEvent}
+ @event{EVT_TEXT_COPY(id, func)}
+ Some or all of the controls content was copied to the clipboard.
+ @event{EVT_TEXT_CUT(id, func)}
+ Some or all of the controls content was cut (i.e. copied and
+ deleted).
+ @event{EVT_TEXT_PASTE(id, func)}
+ Clipboard content was pasted into the control.
+ @endEventTable
+
@library{wxcore}
@category{ctrl}
virtual void Command(wxCommandEvent& event);
/**
- Returns the control's text.
+ Returns the control's label, as it was passed to SetLabel().
+
+ Note that the returned string may contains mnemonics ("&" characters) if they were
+ passed to the SetLabel() function; use GetLabelText() if they are undesired.
- @note The returned string contains mnemonics ("&" characters) if it has
- any, use GetLabelText() if they are undesired.
+ Also note that the returned string is always the string which was passed to
+ SetLabel() but may be different from the string passed to SetLabelText()
+ (since this last one escapes mnemonic characters).
*/
wxString GetLabel() const;
/**
Returns the control's label without mnemonics.
+
+ Note that because of the stripping of the mnemonics the returned string may differ
+ from the string which was passed to SetLabel() but should always be the same which
+ was passed to SetLabelText().
*/
wxString GetLabelText() const;
/**
- Returns the given @a label string without mnemonics.
+ Sets the control's label.
+
+ All "&" characters in the @a label are special and indicate that the
+ following character is a @e mnemonic for this control and can be used to
+ activate it from the keyboard (typically by using @e Alt key in
+ combination with it). To insert a literal ampersand character, you need
+ to double it, i.e. use use "&&". If this behaviour is undesirable, use
+ SetLabelText() instead.
+ */
+ void SetLabel(const wxString& label);
+
+ /**
+ Sets the control's label to exactly the given string.
+
+ Unlike SetLabel(), this function shows exactly the @a text passed to it
+ in the control, without interpreting ampersands in it in any way.
+ Notice that it means that the control can't have any mnemonic defined
+ for it using this function.
+
+ @see EscapeMnemonics()
+ */
+ void SetLabelText(const wxString& text);
+
+
+public: // static functions
+
+ /**
+ Returns the given @a label string without mnemonics ("&" characters).
*/
static wxString GetLabelText(const wxString& label);
/**
- Sets the item's text.
+ Returns the given @a str string without mnemonics ("&" characters).
+
+ @note This function is identic to GetLabelText() and is provided both for symmetry
+ with the wxStaticText::RemoveMarkup() function and to allow to write more
+ readable code (since this function has a more descriptive name respect GetLabelText()).
+ */
+ static wxString RemoveMnemonics(const wxString& str);
- Any "&" characters in the @a label are special and indicate that the
- following character is a mnemonic for this control and can be used to
- activate it from the keyboard (typically by using @e Alt key in
- combination with it). To insert a literal ampersand character, you need
- to double it, i.e. use "&&".
+ /**
+ Escapes the special mnemonics characters ("&") in the given string.
+
+ This function can be helpful if you need to set the controls label to a
+ user-provided string. If the string contains ampersands, they wouldn't
+ appear on the display but be used instead to indicate that the
+ character following the first of them can be used as a control mnemonic.
+ While this can sometimes be desirable (e.g. to allow the user to
+ configure mnemonics of the controls), more often you will want to use
+ this function before passing a user-defined string to SetLabel().
+ Alternatively, if the label is entirely user-defined, you can just call
+ SetLabelText() directly -- but this function must be used if the label
+ is a combination of a part defined by program containing the control
+ mnemonics and a user-defined part.
+
+ @param text
+ The string such as it should appear on the display.
+ @return
+ The same string with the ampersands in it doubled.
+ */
+ static wxString EscapeMnemonics(const wxString& text);
+
+ /**
+ Replaces parts of the @a label string with ellipsis, if needed, so
+ that it doesn't exceed @a maxWidth.
+
+ Note that this functions is guaranteed to always returns a string
+ whose rendering on the given DC takes less than @a maxWidth pixels
+ in horizontal.
+
+ @param label
+ The string to ellipsize
+ @param dc
+ The DC used to retrieve the character widths through the
+ wxDC::GetPartialTextExtents() function.
+ @param mode
+ The ellipsization mode. This is the setting which determines
+ which part of the string should be replaced by the ellipsis.
+ See ::wxEllipsizeMode enumeration values for more info.
+ @param maxWidth
+ The maximum width of the returned string in pixels.
+ This argument determines how much characters of the string need to
+ be removed (and replaced by ellipsis).
+ @param flags
+ One or more of the ::wxEllipsizeFlags enumeration values combined.
*/
- void SetLabel(const wxString& label);
+ static wxString Ellipsize(const wxString& label, const wxDC& dc,
+ wxEllipsizeMode mode, int maxWidth,
+ int flags = wxELLIPSIZE_FLAGS_DEFAULT);
};
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