X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d73e6791fc93a590630b6deb918a6518b91ea142..44b62d54c61e4a0989fcc0f24eecfe0bd883d72b:/docs/latex/wx/text.tex?ds=sidebyside

diff --git a/docs/latex/wx/text.tex b/docs/latex/wx/text.tex
index 8d26a475c3..d7bbb815c5 100644
--- a/docs/latex/wx/text.tex
+++ b/docs/latex/wx/text.tex
@@ -1,3 +1,75 @@
+%%%%%%%%%%%%%%%%%%%%%%%%%%%% wxTextAttr %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\section{\class{wxTextAttr}}\label{wxtextattr}
+
+wxTextAttr represents the attributes, or style, for a range of text in a\rtfsp
+\helpref{wxTextCtrl}{wxtextctrl}.
+
+\wxheading{Derived from}
+
+No base class
+
+\wxheading{Include files}
+
+<wx/textctrl.h>
+
+\latexignore{\rtfignore{\wxheading{Members}}}
+
+\membersection{wxTextAttr::wxTextAttr}\label{wxtextattrctor}
+
+\func{}{wxTextAttr}{\void}
+
+\func{}{wxTextAttr}{\param{const wxColour\& }{colText}, \param{const wxColour\& }{colBack = wxNullColour}, \param{const wxFont\& }{font = wxNullFont}}
+
+The constructors initialize one or more of the text foreground and background
+colours and font. The values not initialized in the constructor can be set
+later, otherwise \helpref{wxTextCtrl::SetStyle}{wxtextctrlsetstyle} will use
+the default values for them.
+
+\membersection{wxTextAttr::GetBackgroundColour}
+
+\constfunc{const wxColour\&}{GetBackgroundColour}{\void}
+
+Return the background colour specified by this attribute.
+
+\membersection{wxTextAttr::GetFont}
+
+\constfunc{const wxFont\&}{GetFont}{\void}
+
+Return the text font specified by this attribute.
+
+\membersection{wxTextAttr::GetTextColour}
+
+\constfunc{const wxColour\&}{GetTextColour}{\void}
+
+Return the text colour specified by this attribute.
+
+\membersection{wxTextAttr::HasBackgroundColour}
+
+\constfunc{bool}{HasBackgroundColour}{\void}
+
+Returns {\tt TRUE} if this style specifies the background colour to use.
+
+\membersection{wxTextAttr::HasFont}
+
+\constfunc{bool}{HasFont}{\void}
+
+Returns {\tt TRUE} if this style specifies the font to use.
+
+\membersection{wxTextAttr::HasTextColour}
+
+\constfunc{bool}{HasTextColour}{\void}
+
+Returns {\tt TRUE} if this style specifies the foreground colour to use.
+
+\membersection{wxTextAttr::IsDefault}
+
+\constfunc{bool}{IsDefault}{\void}
+
+Returns {\tt TRUE} if this style specifies any non-default attributes.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%% wxTextCtrl %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
 \section{\class{wxTextCtrl}}\label{wxtextctrl}
 
 A text control allows text to be displayed and edited. It may be
@@ -42,9 +114,41 @@ it to always show it. It doesn't do anything under other platforms.}
 \twocolitem{\windowstyle{wxHSCROLL}}{A horizontal scrollbar will be created. No effect under GTK+.}
 \end{twocollist}
 
-See also \helpref{window styles overview}{windowstyles} and 
+See also \helpref{window styles overview}{windowstyles} and
 \helpref{wxTextCtrl::wxTextCtrl}{wxtextctrlconstr}.
 
+\wxheading{wxTextCtrl styles}
+
+Multi-line text controls support the styles, i.e. provide a possibility to set
+colours and font for individual characters in it (note that under Windows {\tt
+wxTE\_RICH} style is required for style support). To use the styles you can
+either call \helpref{SetDefaultStyle}{wxtextctrlsetdefaultstyle} before
+inserting the text or call \helpref{SetStyle}{wxtextctrlsetstyle} later to
+change the style of the text already in the control (the first solution is
+much more efficient).
+
+In either case, if the style doesn't specify some of the attributes (for
+example you only want to set the text colour but without changing the font nor
+the text background), the values of the default style will be used for them.
+If there is no default style, the attributes of the text control itself are
+used.
+
+So the following code correctly describes what it does: the second call
+to \helpref{SetDefaultStyle}{wxtextctrlsetdefaultstyle} doesn't change the
+text foreground colour (which stays red) while the last one doesn't change the
+background colour (which stays grey):
+
+{\small%
+\begin{verbatim}
+    text->SetDefaultStyle(wxTextAttr(*wxRED));
+    text->AppendText("Red text\n");
+    text->SetDefaultStyle(wxTextAttr(wxNullColour, *wxLIGHT_GREY));
+    text->AppendText("Red on grey text\n");
+    text->SetDefaultStyle(wxTextAttr(*wxBLUE);
+    text->AppendText("Blue on grey text\n");
+\end{verbatim}
+}%
+
 \wxheading{wxTextCtrl and C++ streams}
 
 This class multiply-inherits from {\bf streambuf} where compilers allow,
@@ -138,7 +242,7 @@ generated when enter is pressed in a single-line text control.}
 \twocolitem{{\bf EVT\_TEXT\_URL(id, func)}}{A mouse event occured over an URL
 in the text control (Win32 only)}
 \twocolitem{{\bf EVT\_TEXT\_MAXLEN(id, func)}}{User tried to enter more text
-into the control than the limit set by 
+into the control than the limit set by
 \helpref{SetMaxLength}{wxtextctrlsetmaxlength}.}
 \end{twocollist}%
 
@@ -221,34 +325,34 @@ the programmer should use \helpref{GetInsertionPoint}{wxtextctrlgetinsertionpoin
 
 \func{virtual bool}{CanCopy}{\void}
 
-Returns TRUE if the selection can be copied to the clipboard.
+Returns {\tt TRUE} if the selection can be copied to the clipboard.
 
 \membersection{wxTextCtrl::CanCut}\label{wxtextctrlcancut}
 
 \func{virtual bool}{CanCut}{\void}
 
-Returns TRUE if the selection can be cut to the clipboard.
+Returns {\tt TRUE} if the selection can be cut to the clipboard.
 
 \membersection{wxTextCtrl::CanPaste}\label{wxtextctrlcanpaste}
 
 \func{virtual bool}{CanPaste}{\void}
 
-Returns TRUE if the contents of the clipboard can be pasted into the
+Returns {\tt TRUE} if the contents of the clipboard can be pasted into the
 text control. On some platforms (Motif, GTK) this is an approximation
-and returns TRUE if the control is editable, FALSE otherwise.
+and returns {\tt TRUE} if the control is editable, {\tt FALSE} otherwise.
 
 \membersection{wxTextCtrl::CanRedo}\label{wxtextctrlcanredo}
 
 \func{virtual bool}{CanRedo}{\void}
 
-Returns TRUE if there is a redo facility available and the last operation
+Returns {\tt TRUE} if there is a redo facility available and the last operation
 can be redone.
 
 \membersection{wxTextCtrl::CanUndo}\label{wxtextctrlcanundo}
 
 \func{virtual bool}{CanUndo}{\void}
 
-Returns TRUE if there is an undo facility available and the last operation
+Returns {\tt TRUE} if there is an undo facility available and the last operation
 can be undone.
 
 \membersection{wxTextCtrl::Clear}\label{wxtextctrlclear}
@@ -285,6 +389,16 @@ Copies the selected text to the clipboard and removes the selection.
 
 Resets the internal `modified' flag as if the current edits had been saved.
 
+\membersection{wxTextCtrl::GetDefaultStyle}\label{wxtextctrlgetdefaultstyle}
+
+\constfunc{const wxTextAttr\& }{GetDefaultStyle}{\void}
+
+Returns the style currently used for the new text.
+
+\wxheading{See also}
+
+\helpref{SetDefaultStyle}{wxtextctrlsetdefaultstyle}
+
 \membersection{wxTextCtrl::GetInsertionPoint}\label{wxtextctrlgetinsertionpoint}
 
 \constfunc{virtual long}{GetInsertionPoint}{\void}
@@ -368,6 +482,13 @@ working with controls that contain large amounts of text.
 Gets the current selection span. If the returned values are equal, there was
 no selection.
 
+Please note that the indices returned may be used with the other wxTextctrl
+methods but don't necessarily represent the correct indices into the string
+returned by \helpref{GetValue()}{wxtextctrlgetvalue} for multiline controls
+under Windows (at least,) you should use
+\helpref{GetStringSelection()}{wxtextctrlgetstringselection} to get the selected
+text.
+
 \wxheading{Parameters}
 
 \docparam{from}{The returned first position.}
@@ -380,6 +501,13 @@ consisting of the from and to values.}
 \perlnote{In wxPerl this method takes no parameter and returns a
 2-element list {\tt ( from, to )}.}
 
+\membersection{wxTextCtrl::GetStringSelection}\label{wxtextctrlgetstringselection}
+
+\func{virtual wxString}{GetStringSelection}{\void}
+
+Gets the text currently selected in the control. If there is no selection, the
+returned string is empty.
+
 \membersection{wxTextCtrl::GetValue}\label{wxtextctrlgetvalue}
 
 \constfunc{wxString}{GetValue}{\void}
@@ -392,7 +520,8 @@ Windows where they are separated by a $\backslash$r$\backslash$n sequence in the
 
 \constfunc{bool}{IsModified}{\void}
 
-Returns TRUE if the text has been modified.
+Returns {\tt TRUE} if the text has been modified by user. Note that calling 
+\helpref{SetValue}{wxtextctrlsetvalue} doesn't make the control modified.
 
 \membersection{wxTextCtrl::LoadFile}\label{wxtextctrlloadfile}
 
@@ -406,7 +535,7 @@ Loads and displays the named file, if it exists.
 
 \wxheading{Return value}
 
-TRUE if successful, FALSE otherwise.
+{\tt TRUE} if successful, {\tt FALSE} otherwise.
 
 \membersection{wxTextCtrl::OnChar}\label{wxtextctrlonchar}
 
@@ -477,7 +606,7 @@ Converts given position to a zero-based column, line number pair.
 
 \wxheading{Return value}
 
-TRUE on success, FALSE on failure (most likely due to a too large position
+{\tt TRUE} on success, {\tt FALSE} on failure (most likely due to a too large position
 parameter).
 
 \wxheading{See also}
@@ -538,7 +667,37 @@ Saves the contents of the control in a text file.
 
 \wxheading{Return value}
 
-TRUE if the operation was successful, FALSE otherwise.
+{\tt TRUE} if the operation was successful, {\tt FALSE} otherwise.
+
+\membersection{wxTextCtrl::SetDefaultStyle}\label{wxtextctrlsetdefaultstyle}
+
+\func{bool}{SetDefaultStyle}{\param{const wxTextAttr\& }{style}}
+
+Changes the default style to use for the new text which is going to be added
+to the control using \helpref{WriteText}{wxtextctrlwritetext} or\rtfsp
+\helpref{AppendText}{wxtextctrlappendtext}.
+
+If either of the font, foreground, or background colour is not set in\rtfsp
+{\it style}, the values of the previous default style are used for them. If
+the previous default style didn't set them neither, the global font or colours
+of the text control itself are used as fall back.
+
+However if the {\it style} parameter is the default wxTextAttr, then the
+default style is just reset (instead of being combined with the new style which
+wouldn't change it at all).
+
+\wxheading{Parameters}
+
+\docparam{style}{The style for the new text.}
+
+\wxheading{Return value}
+
+{\tt TRUE} on success, {\tt FALSE} if an error occured - may also mean that
+the styles are not supported under this platform.
+
+\wxheading{See also}
+
+\helpref{GetDefaultStyle}{wxtextctrlgetdefaultstyle}
 
 \membersection{wxTextCtrl::SetEditable}\label{wxtextctrlseteditable}
 
@@ -548,7 +707,7 @@ Makes the text item editable or read-only, overriding the {\bf wxTE\_READONLY} f
 
 \wxheading{Parameters}
 
-\docparam{editable}{If TRUE, the control is editable. If FALSE, the control is read-only.}
+\docparam{editable}{If {\tt TRUE}, the control is editable. If {\tt FALSE}, the control is read-only.}
 
 \membersection{wxTextCtrl::SetInsertionPoint}\label{wxtextctrlsetinsertionpoint}
 
@@ -580,7 +739,7 @@ and the user may enter as much text as the underlying native text control
 widget supports (typically at least 32Kb).
 
 If the user tries to enter more characters into the text control when it
-already is filled up to the maximal length, a 
+already is filled up to the maximal length, a
 {\tt wxEVT\_COMMAND\_TEXT\_MAXLEN} event is sent to notify the program about it
 (giving it the possibility to show an explanatory message, for example) and the
 extra input is discarded.
@@ -603,11 +762,34 @@ Selects the text starting at the first position up to (but not including) the ch
 
 \docparam{to}{The last position.}
 
+\membersection{wxTextCtrl::SetStyle}\label{wxtextctrlsetstyle}
+
+\func{bool}{SetStyle}{\param{long }{start}, \param{long }{end}, \param{const wxTextAttr\& }{style}}
+
+Changes the style of the selection. If either of the font, foreground, or
+background colour is not set in {\it style}, the values of\rtfsp
+\helpref{GetDefaultStyle()}{wxtextctrlgetdefaultstyle} are used.
+
+\wxheading{Parameters}
+
+\docparam{start}{The start of selection to change.}
+
+\docparam{end}{The end of selection to change.}
+
+\docparam{style}{The new style for the selection.}
+
+\wxheading{Return value}
+
+{\tt TRUE} on success, {\tt FALSE} if an error occured - may also mean that
+the styles are not supported under this platform.
+
 \membersection{wxTextCtrl::SetValue}\label{wxtextctrlsetvalue}
 
 \func{virtual void}{SetValue}{\param{const wxString\& }{ value}}
 
-Sets the text value and marks the control as not-modified.
+Sets the text value and marks the control as not-modified (which means that 
+\helpref{IsModified}{wxtextctrlismodified} would return {\tt FALSE} immediately
+after the call to SetValue).
 
 \wxheading{Parameters}