156 lines
6.0 KiB
C++
156 lines
6.0 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/msw/control.h
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// Purpose: wxControl class
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// Author: Julian Smart
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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_CONTROL_H_
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#define _WX_CONTROL_H_
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#include "wx/dynarray.h"
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// General item class
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class WXDLLIMPEXP_CORE wxControl : public wxControlBase
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{
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public:
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wxControl() = default;
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wxControl(wxWindow *parent, wxWindowID id,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize, long style = 0,
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const wxValidator& validator = wxDefaultValidator,
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const wxString& name = wxASCII_STR(wxControlNameStr))
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{
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Create(parent, id, pos, size, style, validator, name);
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}
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bool Create(wxWindow *parent, wxWindowID id,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize, long style = 0,
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const wxValidator& validator = wxDefaultValidator,
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const wxString& name = wxASCII_STR(wxControlNameStr));
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// Simulates an event
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virtual void Command(wxCommandEvent& event) override { ProcessCommand(event); }
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// implementation from now on
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// --------------------------
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virtual wxVisualAttributes GetDefaultAttributes() const override
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{
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return GetClassDefaultAttributes(GetWindowVariant());
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}
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static wxVisualAttributes
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GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
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// Calls the callback and appropriate event handlers
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bool ProcessCommand(wxCommandEvent& event);
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// MSW-specific
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virtual bool MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) override;
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// For ownerdraw items
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virtual bool MSWOnDraw(WXDRAWITEMSTRUCT *WXUNUSED(item)) { return false; }
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virtual bool MSWOnMeasure(WXMEASUREITEMSTRUCT *WXUNUSED(item)) { return false; }
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const wxArrayLong& GetSubcontrols() const { return m_subControls; }
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// default handling of WM_CTLCOLORxxx: this is public so that wxWindow
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// could call it
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virtual WXHBRUSH MSWControlColor(WXHDC pDC, WXHWND hWnd);
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// default style for the control include WS_TABSTOP if it AcceptsFocus()
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virtual WXDWORD MSWGetStyle(long style, WXDWORD *exstyle) const override;
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protected:
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// Hook for common controls for which we don't want to set the default font
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// as if we do set it, the controls don't update their font size
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// automatically in response to WM_SETTINGCHANGE if it's changed in the
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// display properties in the control panel, so avoid doing this for them.
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virtual bool MSWShouldSetDefaultFont() const { return true; }
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// choose the default border for this window
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virtual wxBorder GetDefaultBorder() const override;
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// return default best size (doesn't really make any sense, override this)
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virtual wxSize DoGetBestSize() const override;
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// create the control of the given Windows class: this is typically called
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// from Create() method of the derived class passing its label, pos and
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// size parameter (style parameter is not needed because m_windowStyle is
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// supposed to had been already set and so is used instead when this
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// function is called)
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//
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// Note that this calls MSWGetStyle() to determine the Windows styles to
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// use, so it must be implemented correctly in the derived class.
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bool MSWCreateControl(const wxChar *classname,
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const wxString& label,
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const wxPoint& pos,
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const wxSize& size);
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// Prefer the overload above, this one should only be used if the styles
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// can't be completely determined from the window style.
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bool MSWCreateControl(const wxChar *classname,
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WXDWORD style,
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const wxPoint& pos,
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const wxSize& size,
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const wxString& label,
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WXDWORD exstyle);
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// call this from the derived class MSWControlColor() if you want to show
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// the control greyed out (and opaque)
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WXHBRUSH MSWControlColorDisabled(WXHDC pDC);
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// common part of the 3 functions above: pass wxNullColour to use the
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// appropriate background colour (meaning ours or our parents) or a fixed
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// one
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virtual WXHBRUSH DoMSWControlColor(WXHDC pDC, wxColour colBg, WXHWND hWnd);
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// Look in our GetSubcontrols() for the windows with the given ID.
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virtual wxWindow *MSWFindItem(long id, WXHWND hWnd) const override;
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// Struct used for MSWGetDarkModeSupport() below.
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struct MSWDarkModeSupport
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{
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// The name of the theme to use (also called "app name").
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const wchar_t* themeName = nullptr;
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// The theme IDs to use. If neither this field nor the theme name is
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// set, no theme is applied to the window.
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const wchar_t* themeId = nullptr;
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// For some controls we need to set the foreground explicitly, even if
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// they have some support for the dark theme.
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bool setForeground = false;
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};
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// Called after creating the control to enable dark mode support if needed.
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//
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// If this function returns true, wxControl allows using dark mode for the
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// window and set its theme to the one specified by MSWDarkModeSupport
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// fields.
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virtual bool MSWGetDarkModeSupport(MSWDarkModeSupport& support) const;
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// Return the message that can be used to retrieve the tooltip window used
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// by a native control. If this message is non-zero and sending it returns
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// a valid HWND, the dark theme is also applied to it, if appropriate.
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virtual int MSWGetToolTipMessage() const { return 0; }
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// for controls like radiobuttons which are really composite this array
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// holds the ids (not HWNDs!) of the sub controls
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wxArrayLong m_subControls;
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private:
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wxDECLARE_DYNAMIC_CLASS_NO_COPY(wxControl);
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};
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#endif // _WX_CONTROL_H_
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