2c6dcc2e51
For consistency with the other platforms, coalesce multiple wxEVT_TEXT events resulting from a single user action into a single one in wxGTK too. For example, when pressing a key in a control with some text selected, wxGTK previously generated 2 wxEVT_TEXT events: one corresponding to the removal of the selection and another one to the addition of the new text. Now only a single event with the new text is generated, as in the other ports. Doing this requires delaying sending wxEVT_TEXT until GTK itself ends handling the key press, however we delay it as little as possible, so hopefully this shouldn't have any visible effects at wx API level. Closes #10050.
150 lines
5.3 KiB
C++
150 lines
5.3 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/gtk/textentry.h
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// Purpose: wxGTK-specific wxTextEntry implementation
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// Author: Vadim Zeitlin
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// Created: 2007-09-24
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// Copyright: (c) 2007 Vadim Zeitlin <vadim@wxwidgets.org>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_GTK_TEXTENTRY_H_
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#define _WX_GTK_TEXTENTRY_H_
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typedef struct _GdkEventKey GdkEventKey;
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typedef struct _GtkEditable GtkEditable;
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typedef struct _GtkEntry GtkEntry;
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class wxTextAutoCompleteData; // private class used only by wxTextEntry itself
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class wxTextCoalesceData; // another private class
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// ----------------------------------------------------------------------------
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// wxTextEntry: roughly corresponds to GtkEditable
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxTextEntry : public wxTextEntryBase
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{
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public:
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wxTextEntry();
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virtual ~wxTextEntry();
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// implement wxTextEntryBase pure virtual methods
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virtual void WriteText(const wxString& text) wxOVERRIDE;
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virtual void Remove(long from, long to) wxOVERRIDE;
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virtual void Copy() wxOVERRIDE;
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virtual void Cut() wxOVERRIDE;
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virtual void Paste() wxOVERRIDE;
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virtual void Undo() wxOVERRIDE;
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virtual void Redo() wxOVERRIDE;
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virtual bool CanUndo() const wxOVERRIDE;
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virtual bool CanRedo() const wxOVERRIDE;
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virtual void SetInsertionPoint(long pos) wxOVERRIDE;
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virtual long GetInsertionPoint() const wxOVERRIDE;
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virtual long GetLastPosition() const wxOVERRIDE;
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virtual void SetSelection(long from, long to) wxOVERRIDE;
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virtual void GetSelection(long *from, long *to) const wxOVERRIDE;
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virtual bool IsEditable() const wxOVERRIDE;
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virtual void SetEditable(bool editable) wxOVERRIDE;
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virtual void SetMaxLength(unsigned long len) wxOVERRIDE;
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virtual void ForceUpper() wxOVERRIDE;
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#ifdef __WXGTK3__
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virtual bool SetHint(const wxString& hint) wxOVERRIDE;
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virtual wxString GetHint() const wxOVERRIDE;
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#endif
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// implementation only from now on
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void SendMaxLenEvent();
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bool GTKEntryOnInsertText(const char* text);
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bool GTKIsUpperCase() const { return m_isUpperCase; }
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// Called from "changed" signal handler (or, possibly, slightly later, when
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// coalescing several "changed" signals into a single event) for GtkEntry.
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//
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// By default just generates a wxEVT_TEXT, but overridden to do more things
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// in wxTextCtrl.
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virtual void GTKOnTextChanged() { SendTextUpdatedEvent(); }
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// Helper functions only used internally.
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wxTextCoalesceData* GTKGetCoalesceData() const { return m_coalesceData; }
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protected:
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// This method must be called from the derived class Create() to connect
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// the handlers for the clipboard (cut/copy/paste) events.
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void GTKConnectClipboardSignals(GtkWidget* entry);
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// And this one to connect "insert-text" signal.
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void GTKConnectInsertTextSignal(GtkEntry* entry);
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// Finally this one connects to the "changed" signal on the object returned
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// by GetTextObject().
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void GTKConnectChangedSignal();
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virtual void DoSetValue(const wxString& value, int flags) wxOVERRIDE;
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virtual wxString DoGetValue() const wxOVERRIDE;
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// margins functions
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virtual bool DoSetMargins(const wxPoint& pt) wxOVERRIDE;
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virtual wxPoint DoGetMargins() const wxOVERRIDE;
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virtual bool DoAutoCompleteStrings(const wxArrayString& choices) wxOVERRIDE;
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virtual bool DoAutoCompleteCustom(wxTextCompleter *completer) wxOVERRIDE;
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// Call this from the overridden wxWindow::GTKIMFilterKeypress() to use
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// GtkEntry IM context.
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int GTKEntryIMFilterKeypress(GdkEventKey* event) const;
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// If GTKEntryIMFilterKeypress() is not called (as multiline wxTextCtrl
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// uses its own IM), call this method instead to still notify wxTextEntry
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// about the key press events in the given widget.
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void GTKEntryOnKeypress(GtkWidget* widget) const;
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static int GTKGetEntryTextLength(GtkEntry* entry);
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// Block/unblock the corresponding GTK signal.
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//
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// Note that we make it protected in wxGTK as it is called from wxComboBox
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// currently.
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virtual void EnableTextChangedEvents(bool enable) wxOVERRIDE;
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private:
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// implement this to return the associated GtkEntry or another widget
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// implementing GtkEditable
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virtual GtkEditable *GetEditable() const = 0;
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// implement this to return the associated GtkEntry
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virtual GtkEntry *GetEntry() const = 0;
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// This one exists in order to be overridden by wxTextCtrl which uses
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// either GtkEditable or GtkTextBuffer depending on whether it is single-
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// or multi-line.
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virtual void *GetTextObject() const { return GetEntry(); }
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// Various auto-completion-related stuff, only used if any of AutoComplete()
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// methods are called.
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wxTextAutoCompleteData *m_autoCompleteData;
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// It needs to call our GetEntry() method.
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friend class wxTextAutoCompleteData;
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// Data used for coalescing "changed" events resulting from a single user
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// action.
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mutable wxTextCoalesceData* m_coalesceData;
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bool m_isUpperCase;
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};
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// We don't need the generic version.
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#define wxHAS_NATIVE_TEXT_FORCEUPPER
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#endif // _WX_GTK_TEXTENTRY_H_
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