37be4adec6
The control seems to somehow react to DPI changes on its own (which is rather mysterious as we don't forward WM_DPICHANGED to it, so it's not really clear how does it do it, but it does) and changing its font is worse than useless, as it's not just redundant, but also resets all the styles used inside the control and so is really undesirable. Hence override the just added MSWUpdateFontOnDPIChange() to do nothing for rich edit controls, while still updating the font for the plain EDIT ones (which is required as they don't scale correctly on their own).
308 lines
11 KiB
C++
308 lines
11 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/msw/textctrl.h
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// Purpose: wxTextCtrl class
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// Author: Julian Smart
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// Modified by:
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// Created: 01/02/97
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// Copyright: (c) Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_TEXTCTRL_H_
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#define _WX_TEXTCTRL_H_
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class WXDLLIMPEXP_CORE wxTextCtrl : public wxTextCtrlBase
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{
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public:
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// creation
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// --------
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wxTextCtrl() { Init(); }
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wxTextCtrl(wxWindow *parent, wxWindowID id,
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const wxString& value = wxEmptyString,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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long style = 0,
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const wxValidator& validator = wxDefaultValidator,
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const wxString& name = wxTextCtrlNameStr)
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{
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Init();
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Create(parent, id, value, pos, size, style, validator, name);
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}
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virtual ~wxTextCtrl();
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bool Create(wxWindow *parent, wxWindowID id,
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const wxString& value = wxEmptyString,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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long style = 0,
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const wxValidator& validator = wxDefaultValidator,
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const wxString& name = wxTextCtrlNameStr);
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// overridden wxTextEntry methods
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// ------------------------------
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virtual wxString GetValue() const wxOVERRIDE;
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virtual wxString GetRange(long from, long to) const wxOVERRIDE;
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virtual bool IsEmpty() const;
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virtual void WriteText(const wxString& text) wxOVERRIDE;
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virtual void AppendText(const wxString& text) wxOVERRIDE;
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virtual void Clear() wxOVERRIDE;
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virtual int GetLineLength(long lineNo) const wxOVERRIDE;
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virtual wxString GetLineText(long lineNo) const wxOVERRIDE;
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virtual int GetNumberOfLines() const wxOVERRIDE;
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virtual void SetMaxLength(unsigned long len) wxOVERRIDE;
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virtual void GetSelection(long *from, long *to) const wxOVERRIDE;
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virtual void Redo() wxOVERRIDE;
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virtual bool CanRedo() const wxOVERRIDE;
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virtual void SetInsertionPointEnd() wxOVERRIDE;
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virtual long GetInsertionPoint() const wxOVERRIDE;
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virtual wxTextPos GetLastPosition() const wxOVERRIDE;
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// implement base class pure virtuals
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// ----------------------------------
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virtual bool IsModified() const wxOVERRIDE;
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virtual void MarkDirty() wxOVERRIDE;
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virtual void DiscardEdits() wxOVERRIDE;
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virtual bool EmulateKeyPress(const wxKeyEvent& event) wxOVERRIDE;
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#if wxUSE_RICHEDIT
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// apply text attribute to the range of text (only works with richedit
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// controls)
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virtual bool SetStyle(long start, long end, const wxTextAttr& style) wxOVERRIDE;
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virtual bool SetDefaultStyle(const wxTextAttr& style) wxOVERRIDE;
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virtual bool GetStyle(long position, wxTextAttr& style) wxOVERRIDE;
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#endif // wxUSE_RICHEDIT
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// translate between the position (which is just an index in the text ctrl
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// considering all its contents as a single strings) and (x, y) coordinates
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// which represent column and line.
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virtual long XYToPosition(long x, long y) const wxOVERRIDE;
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virtual bool PositionToXY(long pos, long *x, long *y) const wxOVERRIDE;
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virtual void ShowPosition(long pos) wxOVERRIDE;
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virtual wxTextCtrlHitTestResult HitTest(const wxPoint& pt, long *pos) const wxOVERRIDE;
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virtual wxTextCtrlHitTestResult HitTest(const wxPoint& pt,
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wxTextCoord *col,
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wxTextCoord *row) const wxOVERRIDE
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{
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return wxTextCtrlBase::HitTest(pt, col, row);
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}
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virtual void SetLayoutDirection(wxLayoutDirection dir) wxOVERRIDE;
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virtual wxLayoutDirection GetLayoutDirection() const wxOVERRIDE;
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// Caret handling (Windows only)
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bool ShowNativeCaret(bool show = true);
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bool HideNativeCaret() { return ShowNativeCaret(false); }
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// Implementation from now on
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// --------------------------
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#if wxUSE_DRAG_AND_DROP && wxUSE_RICHEDIT
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virtual void SetDropTarget(wxDropTarget *dropTarget) wxOVERRIDE;
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#endif // wxUSE_DRAG_AND_DROP && wxUSE_RICHEDIT
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virtual void SetWindowStyleFlag(long style) wxOVERRIDE;
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virtual void Command(wxCommandEvent& event) wxOVERRIDE;
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virtual bool MSWCommand(WXUINT param, WXWORD id) wxOVERRIDE;
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virtual WXHBRUSH MSWControlColor(WXHDC hDC, WXHWND hWnd) wxOVERRIDE;
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#if wxUSE_RICHEDIT
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virtual bool MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) wxOVERRIDE;
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int GetRichVersion() const { return m_verRichEdit; }
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bool IsRich() const { return m_verRichEdit != 0; }
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// rich edit controls are not compatible with normal ones and we must set
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// the colours and font for them otherwise
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virtual bool SetBackgroundColour(const wxColour& colour) wxOVERRIDE;
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virtual bool SetForegroundColour(const wxColour& colour) wxOVERRIDE;
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virtual bool SetFont(const wxFont& font) wxOVERRIDE;
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#else
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bool IsRich() const { return false; }
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#endif // wxUSE_RICHEDIT
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#if wxUSE_INKEDIT && wxUSE_RICHEDIT
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bool IsInkEdit() const { return m_isInkEdit != 0; }
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#else
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bool IsInkEdit() const { return false; }
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#endif
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virtual void AdoptAttributesFromHWND() wxOVERRIDE;
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virtual bool AcceptsFocusFromKeyboard() const wxOVERRIDE;
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// returns true if the platform should explicitly apply a theme border
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virtual bool CanApplyThemeBorder() const wxOVERRIDE;
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// callbacks
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void OnDropFiles(wxDropFilesEvent& event);
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void OnChar(wxKeyEvent& event); // Process 'enter' if required
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void OnCut(wxCommandEvent& event);
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void OnCopy(wxCommandEvent& event);
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void OnPaste(wxCommandEvent& event);
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void OnUndo(wxCommandEvent& event);
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void OnRedo(wxCommandEvent& event);
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void OnDelete(wxCommandEvent& event);
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void OnSelectAll(wxCommandEvent& event);
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void OnUpdateCut(wxUpdateUIEvent& event);
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void OnUpdateCopy(wxUpdateUIEvent& event);
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void OnUpdatePaste(wxUpdateUIEvent& event);
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void OnUpdateUndo(wxUpdateUIEvent& event);
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void OnUpdateRedo(wxUpdateUIEvent& event);
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void OnUpdateDelete(wxUpdateUIEvent& event);
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void OnUpdateSelectAll(wxUpdateUIEvent& event);
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// Show a context menu for Rich Edit controls (the standard
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// EDIT control has one already)
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void OnContextMenu(wxContextMenuEvent& event);
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#if wxUSE_RICHEDIT
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// Create context menu for RICHEDIT controls. This may be called once during
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// the control's lifetime or every time the menu is shown, depending on
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// implementation.
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virtual wxMenu *MSWCreateContextMenu();
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#endif // wxUSE_RICHEDIT
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// be sure the caret remains invisible if the user
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// called HideNativeCaret() before
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void OnSetFocus(wxFocusEvent& event);
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// intercept WM_GETDLGCODE
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virtual bool MSWHandleMessage(WXLRESULT *result,
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WXUINT message,
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WXWPARAM wParam,
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WXLPARAM lParam) wxOVERRIDE;
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virtual bool MSWShouldPreProcessMessage(WXMSG* pMsg) wxOVERRIDE;
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virtual WXDWORD MSWGetStyle(long style, WXDWORD *exstyle) const wxOVERRIDE;
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protected:
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// common part of all ctors
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void Init();
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// creates the control of appropriate class (plain or rich edit) with the
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// styles corresponding to m_windowStyle
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//
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// this is used by ctor/Create() and when we need to recreate the control
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// later
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bool MSWCreateText(const wxString& value,
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const wxPoint& pos,
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const wxSize& size);
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virtual void DoSetValue(const wxString &value, int flags = 0) wxOVERRIDE;
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virtual wxPoint DoPositionToCoords(long pos) const wxOVERRIDE;
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// return true if this control has a user-set limit on amount of text (i.e.
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// the limit is due to a previous call to SetMaxLength() and not built in)
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bool HasSpaceLimit(unsigned int *len) const;
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#if wxUSE_RICHEDIT && !wxUSE_UNICODE
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// replace the selection or the entire control contents with the given text
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// in the specified encoding
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bool StreamIn(const wxString& value, wxFontEncoding encoding, bool selOnly);
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// get the contents of the control out as text in the given encoding
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wxString StreamOut(wxFontEncoding encoding, bool selOnly = false) const;
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#endif // wxUSE_RICHEDIT
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// replace the contents of the selection or of the entire control with the
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// given text
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void DoWriteText(const wxString& text,
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int flags = SetValue_SendEvent | SetValue_SelectionOnly);
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// set the selection (possibly without scrolling the caret into view)
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void DoSetSelection(long from, long to, int flags) wxOVERRIDE;
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// get the length of the line containing the character at the given
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// position
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long GetLengthOfLineContainingPos(long pos) const;
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// send TEXT_UPDATED event, return true if it was handled, false otherwise
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bool SendUpdateEvent();
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virtual wxSize DoGetBestSize() const wxOVERRIDE;
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virtual wxSize DoGetSizeFromTextSize(int xlen, int ylen = -1) const wxOVERRIDE;
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#if wxUSE_RICHEDIT
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virtual void MSWUpdateFontOnDPIChange(const wxSize& newDPI) wxOVERRIDE;
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// Apply the character-related parts of wxTextAttr to the given selection
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// or the entire control if start == end == -1.
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//
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// This function is private and should only be called for rich edit
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// controls and with (from, to) already in correct order, i.e. from <= to.
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bool MSWSetCharFormat(const wxTextAttr& attr, long from = -1, long to = -1);
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// Same as above for paragraph-related parts of wxTextAttr. Note that this
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// can only be applied to the selection as RichEdit doesn't support setting
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// the paragraph styles globally.
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bool MSWSetParaFormat(const wxTextAttr& attr, long from, long to);
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// Send wxEVT_CONTEXT_MENU event from here if the control doesn't do it on
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// its own.
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void OnRightUp(wxMouseEvent& event);
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// we're using RICHEDIT (and not simple EDIT) control if this field is not
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// 0, it also gives the version of the RICHEDIT control being used
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// (although not directly: 1 is for 1.0, 2 is for either 2.0 or 3.0 as we
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// can't nor really need to distinguish between them and 4 is for 4.1)
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int m_verRichEdit;
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#endif // wxUSE_RICHEDIT
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// number of EN_UPDATE events sent by Windows when we change the controls
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// text ourselves: we want this to be exactly 1
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int m_updatesCount;
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private:
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virtual void EnableTextChangedEvents(bool enable) wxOVERRIDE
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{
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m_updatesCount = enable ? -1 : -2;
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}
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// implement wxTextEntry pure virtual: it implements all the operations for
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// the simple EDIT controls
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virtual WXHWND GetEditHWND() const wxOVERRIDE { return m_hWnd; }
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#if wxUSE_OLE
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virtual void MSWProcessSpecialKey(wxKeyEvent& event) wxOVERRIDE;
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#endif // wxUSE_OLE
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void OnKeyDown(wxKeyEvent& event);
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// Used by EN_MAXTEXT handler to increase the size limit (will do nothing
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// if the current limit is big enough). Should never be called directly.
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//
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// Returns true if we increased the limit to allow entering more text,
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// false if we hit the limit set by SetMaxLength() and so didn't change it.
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bool AdjustSpaceLimit();
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wxMenu* m_privateContextMenu;
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bool m_isNativeCaretShown;
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#if wxUSE_INKEDIT && wxUSE_RICHEDIT
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int m_isInkEdit;
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#endif
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wxDECLARE_EVENT_TABLE();
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wxDECLARE_DYNAMIC_CLASS_NO_COPY(wxTextCtrl);
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};
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#endif // _WX_TEXTCTRL_H_
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