/*
I have been asked several times about writing some documentation about
- the GTK port of wxWindows, especially its internal structures. Obviously,
+ the GTK port of wxWidgets, especially its internal structures. Obviously,
you cannot understand wxGTK without knowing a little about the GTK, but
some more information about what the wxWindow, which is the base class
for all other window classes, does seems required as well.
6) Display a border (sunken, raised, simple or none).
- Normally one might expect, that one wxWindows window would always correspond
+ Normally one might expect, that one wxWidgets window would always correspond
to one GTK widget. Under GTK, there is no such allround widget that has all
the functionality. Moreover, the GTK defines a client area as a different
widget from the actual widget you are handling. Last but not least some
special classes (e.g. wxFrame) handle different categories of widgets and
still have the possibility to draw something in the client area.
It was therefore required to write a special purpose GTK widget, that would
- represent a client area in the sense of wxWindows capable to do the jobs
+ represent a client area in the sense of wxWidgets capable to do the jobs
2), 3) and 4). I have written this class and it resides in win_gtk.c of
this directory.
one is (in the GTK sense) a child of the GtkScrolledWindow.
If the m_wxwindow field is set, then all input to this widget is inter-
- cepted and sent to the wxWindows class. If not, all input to the widget
+ cepted and sent to the wxWidgets class. If not, all input to the widget
that gets pointed to by m_widget gets intercepted and sent to the class.
II)
- The design of scrolling in wxWindows is markedly different from that offered
+ The design of scrolling in wxWidgets is markedly different from that offered
by the GTK itself and therefore we cannot simply take it as it is. In GTK,
clicking on a scrollbar belonging to scrolled window will inevitably move
- the window. In wxWindows, the scrollbar will only emit an event, send this
+ the window. In wxWidgets, the scrollbar will only emit an event, send this
to (normally) a wxScrolledWindow and that class will call ScrollWindow()
which actually moves the window and its subchildren. Note that GtkPizza
- memorizes how much it has been scrolled but that wxWindows forgets this
+ memorizes how much it has been scrolled but that wxWidgets forgets this
so that the two coordinates systems have to be kept in synch. This is done
in various places using the pizza->xoffset and pizza->yoffset values.
// mouse event processing helpers
// ----------------------------------------------------------------------------
-// init wxMouseEvent with the info from gdk_event
-//
-// NB: this has to be a macro as gdk_event type is different for different
-// events we're used with
-#define InitMouseEvent(/* wxWindowGTK * */ win, \
- /* wxMouseEvent& */ event, \
- /* GdkEventXXX * */ gdk_event) \
-{ \
- event.SetTimestamp( gdk_event->time ); \
- event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK); \
- event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK); \
- event.m_altDown = (gdk_event->state & GDK_MOD1_MASK); \
- event.m_metaDown = (gdk_event->state & GDK_MOD2_MASK); \
- event.m_leftDown = (gdk_event->state & GDK_BUTTON1_MASK); \
- event.m_middleDown = (gdk_event->state & GDK_BUTTON2_MASK); \
- event.m_rightDown = (gdk_event->state & GDK_BUTTON3_MASK); \
- if (event.GetEventType()==wxEVT_MOUSEWHEEL) \
- { \
- if (((GdkEventButton*)gdk_event)->button == 4) \
- event.m_wheelRotation = 120; \
- else if (((GdkEventButton*)gdk_event)->button == 5) \
- event.m_wheelRotation = -120; \
- } \
- \
- wxPoint pt = win->GetClientAreaOrigin(); \
- event.m_x = (wxCoord)gdk_event->x - pt.x; \
- event.m_y = (wxCoord)gdk_event->y - pt.y; \
- \
- event.SetEventObject( win ); \
- event.SetId( win->GetId() ); \
- event.SetTimestamp( gdk_event->time ); \
-} \
+// init wxMouseEvent with the info from GdkEventXXX struct
+template<typename T> void InitMouseEvent(wxWindowGTK *win,
+ wxMouseEvent& event,
+ T *gdk_event)
+{
+ event.SetTimestamp( gdk_event->time );
+ event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK);
+ event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK);
+ event.m_altDown = (gdk_event->state & GDK_MOD1_MASK);
+ event.m_metaDown = (gdk_event->state & GDK_MOD2_MASK);
+ event.m_leftDown = (gdk_event->state & GDK_BUTTON1_MASK);
+ event.m_middleDown = (gdk_event->state & GDK_BUTTON2_MASK);
+ event.m_rightDown = (gdk_event->state & GDK_BUTTON3_MASK);
+ if (event.GetEventType() == wxEVT_MOUSEWHEEL)
+ {
+ event.m_linesPerAction = 3;
+ if (((GdkEventButton*)gdk_event)->button == 4)
+ event.m_wheelRotation = 120;
+ else if (((GdkEventButton*)gdk_event)->button == 5)
+ event.m_wheelRotation = -120;
+ }
+
+ wxPoint pt = win->GetClientAreaOrigin();
+ event.m_x = (wxCoord)gdk_event->x - pt.x;
+ event.m_y = (wxCoord)gdk_event->y - pt.y;
+
+ event.SetEventObject( win );
+ event.SetId( win->GetId() );
+ event.SetTimestamp( gdk_event->time );
+}
static void AdjustEventButtonState(wxMouseEvent& event)
{
wxEventType event_type = wxEVT_NULL;
+ // GdkDisplay is a GTK+ 2.1.0 thing
+#if defined(__WXGTK20__) && GTK_CHECK_VERSION(2, 1, 0)
+ if ( gdk_event->type == GDK_2BUTTON_PRESS &&
+ gdk_event->button >= 1 && gdk_event->button <= 3 )
+ {
+ // Reset GDK internal timestamp variables in order to disable GDK
+ // triple click events. GDK will then next time believe no button has
+ // been clicked just before, and send a normal button click event.
+ GdkDisplay* display = gtk_widget_get_display (widget);
+ display->button_click_time[1] = 0;
+ display->button_click_time[0] = 0;
+ }
+#endif // GTK 2+
+
if (gdk_event->button == 1)
{
+ // note that GDK generates triple click events which are not supported
+ // by wxWidgets but still have to be passed to the app as otherwise
+ // clicks would simply go missing
switch (gdk_event->type)
{
- case GDK_BUTTON_PRESS: event_type = wxEVT_LEFT_DOWN; break;
- case GDK_2BUTTON_PRESS: event_type = wxEVT_LEFT_DCLICK; break;
- case GDK_3BUTTON_PRESS: return FALSE;
- default: break;
+ // we shouldn't get triple clicks at all for GTK2 because we
+ // suppress them artificially using the code above but we still
+ // should map them to something for GTK1 and not just ignore them
+ // as this would lose clicks
+ case GDK_3BUTTON_PRESS: // we could also map this to DCLICK...
+ case GDK_BUTTON_PRESS:
+ event_type = wxEVT_LEFT_DOWN;
+ break;
+
+ case GDK_2BUTTON_PRESS:
+ event_type = wxEVT_LEFT_DCLICK;
+ break;
+
+ default:
+ // just to silence gcc warnings
+ ;
}
}
else if (gdk_event->button == 2)
{
switch (gdk_event->type)
{
- case GDK_BUTTON_PRESS: event_type = wxEVT_MIDDLE_DOWN; break;
- case GDK_2BUTTON_PRESS: event_type = wxEVT_MIDDLE_DCLICK; break;
- default: break;
+ case GDK_3BUTTON_PRESS:
+ case GDK_BUTTON_PRESS:
+ event_type = wxEVT_MIDDLE_DOWN;
+ break;
+
+ case GDK_2BUTTON_PRESS:
+ event_type = wxEVT_MIDDLE_DCLICK;
+ break;
+
+ default:
+ ;
}
}
else if (gdk_event->button == 3)
{
switch (gdk_event->type)
{
- case GDK_BUTTON_PRESS: event_type = wxEVT_RIGHT_DOWN; break;
- case GDK_2BUTTON_PRESS: event_type = wxEVT_RIGHT_DCLICK; break;
- default: break;
- }
- }
- else if (gdk_event->button == 4)
- {
- switch (gdk_event->type)
- {
- case GDK_BUTTON_PRESS: event_type = wxEVT_MOUSEWHEEL; break;
- default: break;
+ case GDK_3BUTTON_PRESS:
+ case GDK_BUTTON_PRESS:
+ event_type = wxEVT_RIGHT_DOWN;
+ break;
+
+ case GDK_2BUTTON_PRESS:
+ event_type = wxEVT_RIGHT_DCLICK;
+ break;
+
+ default:
+ ;
}
}
- else if (gdk_event->button == 5)
+ else if (gdk_event->button == 4 || gdk_event->button == 5)
{
- switch (gdk_event->type)
+ if (gdk_event->type == GDK_BUTTON_PRESS )
{
- case GDK_BUTTON_PRESS: event_type = wxEVT_MOUSEWHEEL; break;
- default: break;
+ event_type = wxEVT_MOUSEWHEEL;
}
}
event.m_leftDown = (gdk_event->state & GDK_BUTTON1_MASK);
event.m_middleDown = (gdk_event->state & GDK_BUTTON2_MASK);
event.m_rightDown = (gdk_event->state & GDK_BUTTON3_MASK);
+ event.m_linesPerAction = 3;
if (gdk_event->direction == GDK_SCROLL_UP)
event.m_wheelRotation = 120;
else
gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "changed" );
// these handlers block mouse events to any window during scrolling such as
- // motion events and prevent GTK and wxWindows from fighting over where the
+ // motion events and prevent GTK and wxWidgets from fighting over where the
// slider should be
gtk_signal_connect( GTK_OBJECT(scrolledWindow->vscrollbar), "button_press_event",
PostCreation();
- Show( TRUE );
-
return TRUE;
}
{
wxCHECK_MSG( !m_needParent || parent, FALSE, wxT("Need complete parent.") );
- // This turns -1 into 30 so that a minimal window is
- // visible even although -1,-1 has been given as the
- // size of the window. the same trick is used in other
- // ports and should make debugging easier.
+ // Use either the given size, or the default if -1 is given.
+ // See wxWindowBase for these functions.
m_width = WidthDefault(size.x) ;
m_height = HeightDefault(size.y);
m_x = (int)pos.x;
m_y = (int)pos.y;
- // some reasonable defaults
- if (!parent)
- {
- if (m_x == -1)
- {
- m_x = (gdk_screen_width () - m_width) / 2;
- if (m_x < 10) m_x = 10;
- }
- if (m_y == -1)
- {
- m_y = (gdk_screen_height () - m_height) / 2;
- if (m_y < 10) m_y = 10;
- }
- }
-
return TRUE;
}
{
if (!m_noExpose)
{
- // these get reported to wxWindows -> wxPaintEvent
+ // these get reported to wxWidgets -> wxPaintEvent
gtk_pizza_set_external( GTK_PIZZA(m_wxwindow), TRUE );
}
m_hasVMT = TRUE;
+
+ // unless the window was created initially hidden (i.e. Hide() had been
+ // called before Create()), we should show it at GTK+ level as well
+ if ( IsShown() )
+ gtk_widget_show( m_widget );
}
void wxWindowGTK::ConnectWidget( GtkWidget *widget )
m_x = x + pizza->xoffset;
m_y = y + pizza->yoffset;
}
- if (width != -1) m_width = width;
- if (height != -1) m_height = height;
- if ((sizeFlags & wxSIZE_AUTO_WIDTH) == wxSIZE_AUTO_WIDTH)
+ // calculate the best size if we should auto size the window
+ if ( ((sizeFlags & wxSIZE_AUTO_WIDTH) && width == -1) ||
+ ((sizeFlags & wxSIZE_AUTO_HEIGHT) && height == -1) )
{
- if (width == -1) m_width = 80;
+ const wxSize sizeBest = GetBestSize();
+ if ( (sizeFlags & wxSIZE_AUTO_WIDTH) && width == -1 )
+ width = sizeBest.x;
+ if ( (sizeFlags & wxSIZE_AUTO_HEIGHT) && height == -1 )
+ height = sizeBest.y;
}
- if ((sizeFlags & wxSIZE_AUTO_HEIGHT) == wxSIZE_AUTO_HEIGHT)
- {
- if (height == -1) m_height = 26;
- }
+ if (width != -1)
+ m_width = width;
+ if (height != -1)
+ m_height = height;
int minWidth = GetMinWidth(),
minHeight = GetMinHeight(),
{
wxCHECK_MSG( (m_widget != NULL), 12, wxT("invalid window") );
- wxCHECK_MSG( m_font.Ok(), 12, wxT("invalid font") );
+ wxFont font = GetFont();
+ wxCHECK_MSG( font.Ok(), 12, wxT("invalid font") );
#ifdef __WXGTK20__
PangoContext *context = NULL;
if (!context)
return 0;
- PangoFontDescription *desc = m_font.GetNativeFontInfo()->description;
+ PangoFontDescription *desc = font.GetNativeFontInfo()->description;
PangoLayout *layout = pango_layout_new(context);
pango_layout_set_font_description(layout, desc);
pango_layout_set_text(layout, "H", 1);
return (int) (rect.height / PANGO_SCALE);
#else
- GdkFont *font = m_font.GetInternalFont( 1.0 );
+ GdkFont *gfont = font.GetInternalFont( 1.0 );
- return font->ascent + font->descent;
+ return gfont->ascent + gfont->descent;
#endif
}
{
wxCHECK_MSG( (m_widget != NULL), 8, wxT("invalid window") );
- wxCHECK_MSG( m_font.Ok(), 8, wxT("invalid font") );
+ wxFont font = GetFont();
+ wxCHECK_MSG( font.Ok(), 8, wxT("invalid font") );
#ifdef __WXGTK20__
PangoContext *context = NULL;
if (!context)
return 0;
- PangoFontDescription *desc = m_font.GetNativeFontInfo()->description;
+ PangoFontDescription *desc = font.GetNativeFontInfo()->description;
PangoLayout *layout = pango_layout_new(context);
pango_layout_set_font_description(layout, desc);
pango_layout_set_text(layout, "g", 1);
return (int) (rect.width / PANGO_SCALE);
#else
- GdkFont *font = m_font.GetInternalFont( 1.0 );
+ GdkFont *gfont = font.GetInternalFont( 1.0 );
- return gdk_string_width( font, "g" );
+ return gdk_string_width( gfont, "g" );
#endif
}
int *externalLeading,
const wxFont *theFont ) const
{
- wxFont fontToUse = m_font;
- if (theFont) fontToUse = *theFont;
+ wxFont fontToUse = theFont ? *theFont : GetFont();
wxCHECK_RET( fontToUse.Ok(), wxT("invalid font") );
g_eraseGC = gdk_gc_new( pizza->bin_window );
gdk_gc_set_fill( g_eraseGC, GDK_SOLID );
}
- gdk_gc_set_foreground( g_eraseGC, m_backgroundColour.GetColor() );
+ gdk_gc_set_foreground( g_eraseGC, GetBackgroundColour().GetColor() );
wxRegionIterator upd( m_clearRegion );
while (upd)
#ifndef __WXUNIVERSAL__
#ifndef __WXGTK20__
// The following code will result in all window-less widgets
- // being redrawn because the wxWindows class is allowed to
+ // being redrawn because the wxWidgets class is allowed to
// paint over the window-less widgets.
GList *children = pizza->children;
void wxWindowGTK::ApplyToolTip( GtkTooltips *tips, const wxChar *tip )
{
- gtk_tooltips_set_tip( tips, GetConnectWidget(), wxConvCurrent->cWX2MB(tip), (gchar*) NULL );
+ wxString tmp( tip );
+ gtk_tooltips_set_tip( tips, GetConnectWidget(), wxGTK_CONV(tmp), (gchar*) NULL );
}
#endif // wxUSE_TOOLTIPS
static bool s_warningPrinted = FALSE;
if (!s_warningPrinted)
{
- printf( "wxWindows warning: Widget styles disabled due to buggy GTK theme.\n" );
+ printf( "wxWidgets warning: Widget styles disabled due to buggy GTK theme.\n" );
s_warningPrinted = TRUE;
}
m_widgetStyle = m_widget->style;
GtkStyle *style = GetWidgetStyle();
- if (m_font != wxSystemSettings::GetFont( wxSYS_DEFAULT_GUI_FONT ))
+ if ( m_hasFont )
{
#ifdef __WXGTK20__
pango_font_description_free( style->font_desc );
#endif
}
- if (m_foregroundColour.Ok())
+ if ( m_hasFgCol )
{
m_foregroundColour.CalcPixel( gtk_widget_get_colormap( m_widget ) );
if (m_foregroundColour != wxSystemSettings::GetColour(wxSYS_COLOUR_BTNTEXT))
}
}
- if (m_backgroundColour.Ok())
+ if ( m_hasBgCol && m_backgroundColour.Ok() )
{
m_backgroundColour.CalcPixel( gtk_widget_get_colormap( m_widget ) );
if (m_backgroundColour != wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE))
}
}
-// used to pass the coordinates from wxWindowGTK::DoPopupMenu() to
-// wxPopupMenuPositionCallback()
-//
-// should be safe even in the MT case as the user can hardly popup 2 menus
-// simultaneously, can he?
-static gint gs_pop_x = 0;
-static gint gs_pop_y = 0;
-
extern "C" void wxPopupMenuPositionCallback( GtkMenu *menu,
gint *x, gint *y,
#ifdef __WXGTK20__
gboolean * WXUNUSED(whatever),
#endif
- gpointer WXUNUSED(user_data) )
+ gpointer user_data )
{
// ensure that the menu appears entirely on screen
GtkRequisition req;
gtk_widget_get_child_requisition(GTK_WIDGET(menu), &req);
wxSize sizeScreen = wxGetDisplaySize();
+ wxPoint *pos = (wxPoint*)user_data;
gint xmax = sizeScreen.x - req.width,
ymax = sizeScreen.y - req.height;
- *x = gs_pop_x < xmax ? gs_pop_x : xmax;
- *y = gs_pop_y < ymax ? gs_pop_y : ymax;
+ *x = pos->x < xmax ? pos->x : xmax;
+ *y = pos->y < ymax ? pos->y : ymax;
}
bool wxWindowGTK::DoPopupMenu( wxMenu *menu, int x, int y )
{
- wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid window") );
+ wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
- wxCHECK_MSG( menu != NULL, FALSE, wxT("invalid popup-menu") );
+ wxCHECK_MSG( menu != NULL, false, wxT("invalid popup-menu") );
SetInvokingWindow( menu, this );
menu->UpdateUI();
- gs_pop_x = x;
- gs_pop_y = y;
- ClientToScreen( &gs_pop_x, &gs_pop_y );
-
- bool is_waiting = TRUE;
+ bool is_waiting = true;
gtk_signal_connect( GTK_OBJECT(menu->m_menu),
"hide",
GTK_SIGNAL_FUNC(gtk_pop_hide_callback),
(gpointer)&is_waiting );
+ wxPoint pos;
+ gpointer userdata;
+ GtkMenuPositionFunc posfunc;
+ if ( x == -1 && y == -1 )
+ {
+ // use GTK's default positioning algorithm
+ userdata = NULL;
+ posfunc = NULL;
+ }
+ else
+ {
+ pos = ClientToScreen(wxPoint(x, y));
+ userdata = &pos;
+ posfunc = wxPopupMenuPositionCallback;
+ }
+
gtk_menu_popup(
GTK_MENU(menu->m_menu),
(GtkWidget *) NULL, // parent menu shell
(GtkWidget *) NULL, // parent menu item
- wxPopupMenuPositionCallback, // function to position it
- NULL, // client data
+ posfunc, // function to position it
+ userdata, // client data
0, // button used to activate it
#ifdef __WXGTK20__
gtk_get_current_event_time()
gtk_main_iteration();
}
- return TRUE;
+ return true;
}
#endif // wxUSE_MENUS_NATIVE
projects / wxWidgets.git / blobdiff