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Add wx headers and ext

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Joey Yakimowich-Payne 2023-02-06 09:04:33 -07:00
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///////////////////////////////////////////////////////////////////////////////
// Name: wx/gtk/private/event.h
// Purpose: Helper functions for working with GDK and wx events
// Author: Vaclav Slavik
// Created: 2011-10-14
// Copyright: (c) 2011 Vaclav Slavik
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _GTK_PRIVATE_EVENT_H_
#define _GTK_PRIVATE_EVENT_H_
#if !GTK_CHECK_VERSION(2,10,0)
// GTK+ can reliably detect Meta key state only since 2.10 when
// GDK_META_MASK was introduced -- there wasn't any way to detect it
// in older versions. wxGTK used GDK_MOD2_MASK for this purpose, but
// GDK_MOD2_MASK is documented as:
//
// the fifth modifier key (it depends on the modifier mapping of the X
// server which key is interpreted as this modifier)
//
// In other words, it isn't guaranteed to map to Meta. This is a real
// problem: it is common to map NumLock to it (in fact, it's an exception
// if the X server _doesn't_ use it for NumLock). So the old code caused
// wxKeyEvent::MetaDown() to always return true as long as NumLock was
// on many systems, which broke all applications using
// wxKeyEvent::GetModifiers() to check modifiers state (see e.g. here:
// http://tinyurl.com/56lsk2).
//
// Because of this, it's better to not detect Meta key state at all than
// to detect it incorrectly. Hence the following #define, which causes
// m_metaDown to be always set to false.
#define GDK_META_MASK 0
#endif
namespace wxGTKImpl
{
// init wxMouseEvent with the info from GdkEventXXX struct
template<typename T> void InitMouseEvent(wxWindowGTK *win,
wxMouseEvent& event,
T *gdk_event)
{
event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK) != 0;
event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK) != 0;
event.m_altDown = (gdk_event->state & GDK_MOD1_MASK) != 0;
event.m_metaDown = (gdk_event->state & GDK_META_MASK) != 0;
event.m_leftDown = (gdk_event->state & GDK_BUTTON1_MASK) != 0;
event.m_middleDown = (gdk_event->state & GDK_BUTTON2_MASK) != 0;
event.m_rightDown = (gdk_event->state & GDK_BUTTON3_MASK) != 0;
// In gdk/win32 VK_XBUTTON1 is translated to GDK_BUTTON4_MASK
// and VK_XBUTTON2 to GDK_BUTTON5_MASK. In x11/gdk buttons 4/5
// are wheel rotation and buttons 8/9 don't change the state.
event.m_aux1Down = (gdk_event->state & GDK_BUTTON4_MASK) != 0;
event.m_aux2Down = (gdk_event->state & GDK_BUTTON5_MASK) != 0;
wxPoint pt = win->GetClientAreaOrigin();
event.m_x = (wxCoord)gdk_event->x - pt.x;
event.m_y = (wxCoord)gdk_event->y - pt.y;
// Some no-window widgets, notably GtkEntry on GTK3, have a GdkWindow
// covering part of their area. Event coordinates from that window are
// not relative to the widget, so do the conversion here.
if (!gtk_widget_get_has_window(win->m_widget) &&
gtk_widget_get_window(win->m_widget) == gdk_window_get_parent(gdk_event->window))
{
GtkAllocation a;
gtk_widget_get_allocation(win->m_widget, &a);
int posX, posY;
gdk_window_get_position(gdk_event->window, &posX, &posY);
event.m_x += posX - a.x;
event.m_y += posY - a.y;
}
if ((win->m_wxwindow) && (win->GetLayoutDirection() == wxLayout_RightToLeft))
{
// origin in the upper right corner
GtkAllocation a;
gtk_widget_get_allocation(win->m_wxwindow, &a);
int window_width = a.width;
event.m_x = window_width - event.m_x;
}
event.SetEventObject( win );
event.SetId( win->GetId() );
event.SetTimestamp( gdk_event->time );
}
} // namespace wxGTKImpl
#endif // _GTK_PRIVATE_EVENT_H_