wxWidgets/include/wx/msw/tooltip.h
Rebel_X 35f35ea407 Clean up wxMSW tooltip window on library shutdown
Not doing this prevented the tooltips from working correctly if the library
was shut down and reinitialized again, so add a module ensuring this is done.

Closes #17360.
2016-02-13 12:55:17 +01:00

122 lines
4.3 KiB
C++

///////////////////////////////////////////////////////////////////////////////
// Name: wx/msw/tooltip.h
// Purpose: wxToolTip class - tooltip control
// Author: Vadim Zeitlin
// Modified by:
// Created: 31.01.99
// Copyright: (c) 1999 Robert Roebling, Vadim Zeitlin
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_MSW_TOOLTIP_H_
#define _WX_MSW_TOOLTIP_H_
#include "wx/object.h"
#include "wx/gdicmn.h"
class WXDLLIMPEXP_FWD_CORE wxWindow;
class wxToolTipOtherWindows;
class WXDLLIMPEXP_CORE wxToolTip : public wxObject
{
public:
// ctor & dtor
wxToolTip(const wxString &tip);
virtual ~wxToolTip();
// ctor used by wxStatusBar to associate a tooltip to a portion of
// the status bar window:
wxToolTip(wxWindow* win, unsigned int id,
const wxString &tip, const wxRect& rc);
// accessors
// tip text
void SetTip(const wxString& tip);
const wxString& GetTip() const { return m_text; }
// the window we're associated with
void SetWindow(wxWindow *win);
wxWindow *GetWindow() const { return m_window; }
// controlling tooltip behaviour: globally change tooltip parameters
// enable or disable the tooltips globally
static void Enable(bool flag);
// set the delay after which the tooltip appears
static void SetDelay(long milliseconds);
// set the delay after which the tooltip disappears or how long the
// tooltip remains visible
static void SetAutoPop(long milliseconds);
// set the delay between subsequent tooltips to appear
static void SetReshow(long milliseconds);
// set maximum width for the new tooltips: -1 disables wrapping
// entirely, 0 restores the default behaviour
static void SetMaxWidth(int width);
// implementation only from now on
// -------------------------------
// should be called in response to WM_MOUSEMOVE
static void RelayEvent(WXMSG *msg);
// add a window to the tooltip control
void AddOtherWindow(WXHWND hwnd);
// remove any tooltip from the window
static void Remove(WXHWND hwnd, unsigned int id, const wxRect& rc);
// Set the rectangle we're associated with. This rectangle is only used for
// the main window, not any sub-windows added with Add() so in general it
// makes sense to use it for tooltips associated with a single window only.
void SetRect(const wxRect& rc);
// Called when TLW shown state is changed and hides the tooltip itself if
// the window it's associated with is hidden.
static void UpdateVisibility();
private:
// This module calls our DeleteToolTipCtrl().
friend class wxToolTipModule;
// Adds a window other than our main m_window to this tooltip.
void DoAddHWND(WXHWND hWnd);
// Perform the specified operation for the given window only.
void DoSetTip(WXHWND hWnd);
void DoRemove(WXHWND hWnd);
// Call the given function for all windows we're associated with.
void DoForAllWindows(void (wxToolTip::*func)(WXHWND));
// the one and only one tooltip control we use - never access it directly
// but use GetToolTipCtrl() which will create it when needed
static WXHWND ms_hwndTT;
// create the tooltip ctrl if it doesn't exist yet and return its HWND
static WXHWND GetToolTipCtrl();
// to be used in wxModule for deleting tooltip ctrl window when exiting mainloop
static void DeleteToolTipCtrl();
// new tooltip maximum width, defaults to min(display width, 400)
static int ms_maxWidth;
// remove this tooltip from the tooltip control
void Remove();
// adjust tooltip max width based on current tooltip text
bool AdjustMaxWidth();
wxString m_text; // tooltip text
wxWindow* m_window; // main window we're associated with
wxToolTipOtherWindows *m_others; // other windows associated with it or NULL
wxRect m_rect; // the rect of the window for which this tooltip is shown
// (or a rect with width/height == 0 to show it for the entire window)
unsigned int m_id; // the id of this tooltip (ignored when m_rect width/height is 0)
wxDECLARE_ABSTRACT_CLASS(wxToolTip);
wxDECLARE_NO_COPY_CLASS(wxToolTip);
};
#endif // _WX_MSW_TOOLTIP_H_