wxWidgets/include/wx/gtk/textctrl.h

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7.8 KiB
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/////////////////////////////////////////////////////////////////////////////
// Name: wx/gtk/textctrl.h
// Purpose:
// Author: Robert Roebling
// Created: 01/02/97
// Id: $Id$
// Copyright: (c) 1998 Robert Roebling
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_GTK_TEXTCTRL_H_
#define _WX_GTK_TEXTCTRL_H_
typedef struct _GtkTextMark GtkTextMark;
//-----------------------------------------------------------------------------
// wxTextCtrl
//-----------------------------------------------------------------------------
class WXDLLIMPEXP_CORE wxTextCtrl: public wxTextCtrlBase
{
public:
wxTextCtrl() { Init(); }
wxTextCtrl(wxWindow *parent,
wxWindowID id,
const wxString &value = wxEmptyString,
const wxPoint &pos = wxDefaultPosition,
const wxSize &size = wxDefaultSize,
long style = 0,
const wxValidator& validator = wxDefaultValidator,
const wxString &name = wxTextCtrlNameStr);
virtual ~wxTextCtrl();
bool Create(wxWindow *parent,
wxWindowID id,
const wxString &value = wxEmptyString,
const wxPoint &pos = wxDefaultPosition,
const wxSize &size = wxDefaultSize,
long style = 0,
const wxValidator& validator = wxDefaultValidator,
const wxString &name = wxTextCtrlNameStr);
// implement base class pure virtuals
// ----------------------------------
virtual void WriteText(const wxString& text);
virtual wxString GetValue() const;
virtual bool IsEmpty() const;
virtual int GetLineLength(long lineNo) const;
virtual wxString GetLineText(long lineNo) const;
virtual int GetNumberOfLines() const;
virtual bool IsModified() const;
virtual bool IsEditable() const;
virtual void GetSelection(long* from, long* to) const;
virtual void Remove(long from, long to);
virtual void MarkDirty();
virtual void DiscardEdits();
virtual bool SetStyle(long start, long end, const wxTextAttr& style);
// translate between the position (which is just an index in the text ctrl
// considering all its contents as a single strings) and (x, y) coordinates
// which represent column and line.
virtual long XYToPosition(long x, long y) const;
virtual bool PositionToXY(long pos, long *x, long *y) const;
virtual void ShowPosition(long pos);
virtual wxTextCtrlHitTestResult HitTest(const wxPoint& pt, long *pos) const;
virtual wxTextCtrlHitTestResult HitTest(const wxPoint& pt,
wxTextCoord *col,
wxTextCoord *row) const
{
return wxTextCtrlBase::HitTest(pt, col, row);
}
// Clipboard operations
virtual void Copy();
virtual void Cut();
virtual void Paste();
// Insertion point
virtual void SetInsertionPoint(long pos);
virtual long GetInsertionPoint() const;
virtual wxTextPos GetLastPosition() const;
virtual void SetSelection(long from, long to);
virtual void SetEditable(bool editable);
// Overridden wxWindow methods
virtual void SetWindowStyleFlag( long style );
virtual bool Enable( bool enable = true );
// Implementation from now on
void OnDropFiles( wxDropFilesEvent &event );
void OnChar( wxKeyEvent &event );
void OnCut(wxCommandEvent& event);
void OnCopy(wxCommandEvent& event);
void OnPaste(wxCommandEvent& event);
void OnUndo(wxCommandEvent& event);
void OnRedo(wxCommandEvent& event);
void OnUpdateCut(wxUpdateUIEvent& event);
void OnUpdateCopy(wxUpdateUIEvent& event);
void OnUpdatePaste(wxUpdateUIEvent& event);
void OnUpdateUndo(wxUpdateUIEvent& event);
void OnUpdateRedo(wxUpdateUIEvent& event);
bool SetFont(const wxFont& font);
bool SetForegroundColour(const wxColour& colour);
bool SetBackgroundColour(const wxColour& colour);
GtkWidget* GetConnectWidget();
void SetUpdateFont(bool WXUNUSED(update)) { }
// GTK+ textctrl is so dumb that you need to freeze/thaw it manually to
// avoid horrible flicker/scrolling back and forth
virtual void Freeze();
virtual void Thaw();
// implementation only from now on
// tell the control to ignore next text changed signal
void IgnoreNextTextUpdate(int n = 1) { m_countUpdatesToIgnore = n; }
// should we ignore the changed signal? always resets the flag
bool IgnoreTextUpdate();
// call this to indicate that the control is about to be changed
// programmatically and so m_modified flag shouldn't be set
void DontMarkDirtyOnNextChange() { m_dontMarkDirty = true; }
// should we mark the control as dirty? always resets the flag
bool MarkDirtyOnChange();
// always let GTK have mouse release events for multiline controls
virtual bool GTKProcessEvent(wxEvent& event) const;
static wxVisualAttributes
GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
// has the control been frozen by Freeze()?
bool IsFrozen() const { return m_freezeCount > 0; }
protected:
// wxGTK-specific: called recursively by Enable,
// to give widgets an oppprtunity to correct their colours after they
// have been changed by Enable
virtual void OnEnabled(bool enable);
// overridden wxWindow virtual methods
virtual wxSize DoGetBestSize() const;
virtual void DoApplyWidgetStyle(GtkRcStyle *style);
virtual GdkWindow *GTKGetWindow(wxArrayGdkWindows& windows) const;
// common part of all ctors
void Init();
// Widgets that use the style->base colour for the BG colour should
// override this and return true.
virtual bool UseGTKStyleBase() const { return true; }
virtual void DoSetValue(const wxString &value, int flags = 0);
// wrappers hiding the differences between functions doing the same thing
// for GtkTextView and GtkEntry (all of them use current window style to
// set the given characteristic)
void GTKSetEditable();
void GTKSetVisibility();
void GTKSetActivatesDefault();
void GTKSetWrapMode();
void GTKSetJustification();
private:
// overridden wxTextEntry virtual methods
virtual const wxWindow *GetEditableWindow() const { return this; }
virtual GtkEditable *GetEditable() const;
virtual void EnableTextChangedEvents(bool enable);
// change the font for everything in this control
void ChangeFontGlobally();
// get the encoding which is used in this control: this looks at our font
// and default style but not the current style (i.e. the style for the
// current position); returns wxFONTENCODING_SYSTEM if we have no specific
// encoding
wxFontEncoding GetTextEncoding() const;
// returns either m_text or m_buffer depending on whether the control is
// single- or multi-line; convenient for the GTK+ functions which work with
// both
void *GetTextObject() const
{
return IsMultiLine() ? wx_static_cast(void *, m_buffer)
: wx_static_cast(void *, m_text);
}
// the widget used for single line controls
GtkWidget *m_text;
bool m_modified:1;
bool m_dontMarkDirty:1;
int m_countUpdatesToIgnore;
// Our text buffer. Convenient, and holds the buffer while using
// a dummy one when frozen
GtkTextBuffer *m_buffer;
// number of calls to Freeze() minus number of calls to Thaw()
unsigned m_freezeCount;
GtkTextMark* m_showPositionOnThaw;
// For wxTE_AUTO_URL
void OnUrlMouseEvent(wxMouseEvent&);
GdkCursor *m_gdkHandCursor;
GdkCursor *m_gdkXTermCursor;
DECLARE_EVENT_TABLE()
DECLARE_DYNAMIC_CLASS(wxTextCtrl)
};
#endif // _WX_GTK_TEXTCTRL_H_