57d054cf95
Apply a zoom factor based on the active DPI and the system DPI. On the first DPI change, revert the scaling factor.
322 lines
12 KiB
C++
322 lines
12 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 Paste() 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 m_richDPIscale zoom to rich control.
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void MSWSetRichZoom();
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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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// Rich text controls need temporary scaling when they are created on a
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// display with non-system DPI.
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float m_richDPIscale;
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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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// Called before pasting to ensure that the limit is at big enough to allow
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// pasting the entire text on the clipboard.
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void AdjustMaxLengthBeforePaste();
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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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