projects / wxWidgets.git / blame
| Commit | Line | Data |
|---|---|---|
| 4a99d597 VS |
1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: wx/gtk/private/event.h | |
| 3 | // Purpose: Helper functions for working with GDK and wx events | |
| 4 | // Author: Vaclav Slavik | |
| 5 | // Created: 2011-10-14 | |
| 6 | // RCS-ID: $Id$ | |
| 7 | // Copyright: (c) 2011 Vaclav Slavik | |
| 8 | // Licence: wxWindows licence | |
| 9 | /////////////////////////////////////////////////////////////////////////////// | |
| 10 | ||
| 11 | #ifndef _GTK_PRIVATE_EVENT_H_ | |
| 12 | #define _GTK_PRIVATE_EVENT_H_ | |
| 13 | ||
| cf0a0f93 VZ |
14 | #if !GTK_CHECK_VERSION(2,10,0) |
| 15 | // GTK+ can reliably detect Meta key state only since 2.10 when | |
| 16 | // GDK_META_MASK was introduced -- there wasn't any way to detect it | |
| 17 | // in older versions. wxGTK used GDK_MOD2_MASK for this purpose, but | |
| 18 | // GDK_MOD2_MASK is documented as: | |
| 19 | // | |
| 20 | // the fifth modifier key (it depends on the modifier mapping of the X | |
| 21 | // server which key is interpreted as this modifier) | |
| 22 | // | |
| 23 | // In other words, it isn't guaranteed to map to Meta. This is a real | |
| 24 | // problem: it is common to map NumLock to it (in fact, it's an exception | |
| 25 | // if the X server _doesn't_ use it for NumLock). So the old code caused | |
| 26 | // wxKeyEvent::MetaDown() to always return true as long as NumLock was on | |
| 27 | // on many systems, which broke all applications using | |
| 28 | // wxKeyEvent::GetModifiers() to check modifiers state (see e.g. here: | |
| 29 | // http://tinyurl.com/56lsk2). | |
| 30 | // | |
| 31 | // Because of this, it's better to not detect Meta key state at all than | |
| 32 | // to detect it incorrectly. Hence the following #define, which causes | |
| 33 | // m_metaDown to be always set to false. | |
| 34 | #define GDK_META_MASK 0 | |
| 35 | #endif | |
| 36 | ||
| 4a99d597 VS |
37 | namespace wxGTKImpl |
| 38 | { | |
| 39 | ||
| 40 | // init wxMouseEvent with the info from GdkEventXXX struct | |
| 41 | template<typename T> void InitMouseEvent(wxWindowGTK *win, | |
| 42 | wxMouseEvent& event, | |
| 43 | T *gdk_event) | |
| 44 | { | |
| 45 | event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK) != 0; | |
| 46 | event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK) != 0; | |
| 47 | event.m_altDown = (gdk_event->state & GDK_MOD1_MASK) != 0; | |
| 48 | event.m_metaDown = (gdk_event->state & GDK_META_MASK) != 0; | |
| 49 | event.m_leftDown = (gdk_event->state & GDK_BUTTON1_MASK) != 0; | |
| 50 | event.m_middleDown = (gdk_event->state & GDK_BUTTON2_MASK) != 0; | |
| 51 | event.m_rightDown = (gdk_event->state & GDK_BUTTON3_MASK) != 0; | |
| 52 | ||
| 53 | // In gdk/win32 VK_XBUTTON1 is translated to GDK_BUTTON4_MASK | |
| 54 | // and VK_XBUTTON2 to GDK_BUTTON5_MASK. In x11/gdk buttons 4/5 | |
| 55 | // are wheel rotation and buttons 8/9 don't change the state. | |
| 56 | event.m_aux1Down = (gdk_event->state & GDK_BUTTON4_MASK) != 0; | |
| 57 | event.m_aux2Down = (gdk_event->state & GDK_BUTTON5_MASK) != 0; | |
| 58 | ||
| 59 | wxPoint pt = win->GetClientAreaOrigin(); | |
| 60 | event.m_x = (wxCoord)gdk_event->x - pt.x; | |
| 61 | event.m_y = (wxCoord)gdk_event->y - pt.y; | |
| 62 | ||
| 63 | if ((win->m_wxwindow) && (win->GetLayoutDirection() == wxLayout_RightToLeft)) | |
| 64 | { | |
| 65 | // origin in the upper right corner | |
| 66 | GtkAllocation a; | |
| 67 | gtk_widget_get_allocation(win->m_wxwindow, &a); | |
| 68 | int window_width = a.width; | |
| 69 | event.m_x = window_width - event.m_x; | |
| 70 | } | |
| 71 | ||
| 72 | event.SetEventObject( win ); | |
| 73 | event.SetId( win->GetId() ); | |
| 74 | event.SetTimestamp( gdk_event->time ); | |
| 75 | } | |
| 76 | ||
| 77 | } // namespace wxGTKImpl | |
| 78 | ||
| 79 | #endif // _GTK_PRIVATE_EVENT_H_ | |
| 80 |