// "scroll_event" (mouse wheel event)
//-----------------------------------------------------------------------------
-static gboolean
-window_scroll_event_hscrollbar(GtkWidget*, GdkEventScroll* gdk_event, wxWindow* win)
+static void AdjustRangeValue(GtkRange* range, double step)
{
- if (gdk_event->direction != GDK_SCROLL_LEFT &&
- gdk_event->direction != GDK_SCROLL_RIGHT)
- {
- return false;
- }
-
- GtkRange *range = win->m_scrollBar[wxWindow::ScrollDir_Horz];
-
if (range && gtk_widget_get_visible(GTK_WIDGET(range)))
{
GtkAdjustment* adj = gtk_range_get_adjustment(range);
- double delta = gtk_adjustment_get_step_increment(adj) * 3;
- if (gdk_event->direction == GDK_SCROLL_LEFT)
- delta = -delta;
-
- gtk_range_set_value(range, gtk_adjustment_get_value(adj) + delta);
-
- return TRUE;
+ double value = gtk_adjustment_get_value(adj);
+ value += step * gtk_adjustment_get_step_increment(adj);
+ gtk_range_set_value(range, value);
}
-
- return FALSE;
}
static gboolean
-window_scroll_event(GtkWidget*, GdkEventScroll* gdk_event, wxWindow* win)
+scroll_event(GtkWidget* widget, GdkEventScroll* gdk_event, wxWindow* win)
{
wxMouseEvent event(wxEVT_MOUSEWHEEL);
InitMouseEvent(win, event, gdk_event);
- // FIXME: Get these values from GTK or GDK
+ event.m_wheelDelta = 120;
event.m_linesPerAction = 3;
event.m_columnsPerAction = 3;
- event.m_wheelDelta = 120;
- // Determine the scroll direction.
- switch (gdk_event->direction)
+ GtkRange* range_h = win->m_scrollBar[wxWindow::ScrollDir_Horz];
+ GtkRange* range_v = win->m_scrollBar[wxWindow::ScrollDir_Vert];
+ const bool is_range_h = (void*)widget == range_h;
+ const bool is_range_v = (void*)widget == range_v;
+ GdkScrollDirection direction = gdk_event->direction;
+ switch (direction)
{
case GDK_SCROLL_UP:
- case GDK_SCROLL_RIGHT:
- event.m_wheelRotation = 120;
+ if (is_range_h)
+ direction = GDK_SCROLL_LEFT;
break;
-
case GDK_SCROLL_DOWN:
- case GDK_SCROLL_LEFT:
- event.m_wheelRotation = -120;
+ if (is_range_h)
+ direction = GDK_SCROLL_RIGHT;
break;
-#if GTK_CHECK_VERSION(3,4,0)
- case GDK_SCROLL_SMOOTH:
- // TODO
-#endif
- default:
- return false; // Unknown/unhandled direction
- }
-
- // And the scroll axis.
- switch (gdk_event->direction)
- {
- case GDK_SCROLL_UP:
- case GDK_SCROLL_DOWN:
- event.m_wheelAxis = wxMOUSE_WHEEL_VERTICAL;
- break;
-
case GDK_SCROLL_LEFT:
+ if (is_range_v)
+ direction = GDK_SCROLL_UP;
+ break;
case GDK_SCROLL_RIGHT:
- event.m_wheelAxis = wxMOUSE_WHEEL_HORIZONTAL;
+ if (is_range_v)
+ direction = GDK_SCROLL_DOWN;
+ break;
+ default:
break;
#if GTK_CHECK_VERSION(3,4,0)
case GDK_SCROLL_SMOOTH:
- // TODO
- break;
-#endif
+ double delta_x = gdk_event->delta_x;
+ double delta_y = gdk_event->delta_y;
+ if (delta_x == 0)
+ {
+ if (is_range_h)
+ {
+ delta_x = delta_y;
+ delta_y = 0;
+ }
+ }
+ else if (delta_y == 0)
+ {
+ if (is_range_v)
+ {
+ delta_y = delta_x;
+ delta_x = 0;
+ }
+ }
+ if (delta_x)
+ {
+ event.m_wheelAxis = wxMOUSE_WHEEL_HORIZONTAL;
+ event.m_wheelRotation = int(event.m_wheelDelta * delta_x);
+ if (!win->GTKProcessEvent(event))
+ AdjustRangeValue(range_h, event.m_columnsPerAction * delta_x);
+ }
+ if (delta_y)
+ {
+ event.m_wheelAxis = wxMOUSE_WHEEL_VERTICAL;
+ event.m_wheelRotation = int(event.m_wheelDelta * -delta_y);
+ if (!win->GTKProcessEvent(event))
+ AdjustRangeValue(range_v, event.m_linesPerAction * delta_y);
+ }
+ return true;
+#endif // GTK_CHECK_VERSION(3,4,0)
}
-
- if (win->GTKProcessEvent(event))
- return TRUE;
-
GtkRange *range;
- switch (gdk_event->direction)
+ double step;
+ switch (direction)
{
case GDK_SCROLL_UP:
case GDK_SCROLL_DOWN:
- range = win->m_scrollBar[wxWindow::ScrollDir_Vert];
+ range = range_v;
+ event.m_wheelAxis = wxMOUSE_WHEEL_VERTICAL;
+ step = event.m_linesPerAction;
break;
-
case GDK_SCROLL_LEFT:
case GDK_SCROLL_RIGHT:
- range = win->m_scrollBar[wxWindow::ScrollDir_Horz];
+ range = range_h;
+ event.m_wheelAxis = wxMOUSE_WHEEL_HORIZONTAL;
+ step = event.m_columnsPerAction;
break;
-
default:
return false;
}
- if (range && gtk_widget_get_visible(GTK_WIDGET(range)))
- {
- GtkAdjustment* adj = gtk_range_get_adjustment(range);
- double delta = gtk_adjustment_get_step_increment(adj) * 3;
- if (gdk_event->direction == GDK_SCROLL_UP ||
- gdk_event->direction == GDK_SCROLL_LEFT)
- delta = -delta;
+ event.m_wheelRotation = event.m_wheelDelta;
+ if (direction == GDK_SCROLL_DOWN || direction == GDK_SCROLL_LEFT)
+ event.m_wheelRotation = -event.m_wheelRotation;
- gtk_range_set_value(range, gtk_adjustment_get_value(adj) + delta);
-
- return TRUE;
+ if (!win->GTKProcessEvent(event))
+ {
+ if (direction == GDK_SCROLL_UP || direction == GDK_SCROLL_LEFT)
+ step = -step;
+ AdjustRangeValue(range, step);
}
- return FALSE;
+ return true;
}
//-----------------------------------------------------------------------------
g_signal_connect (widget, "motion_notify_event",
G_CALLBACK (gtk_window_motion_notify_callback), this);
- g_signal_connect (widget, "scroll_event",
- G_CALLBACK (window_scroll_event), this);
- if (m_scrollBar[ScrollDir_Horz])
- g_signal_connect (m_scrollBar[ScrollDir_Horz], "scroll_event",
- G_CALLBACK (window_scroll_event_hscrollbar), this);
- if (m_scrollBar[ScrollDir_Vert])
- g_signal_connect (m_scrollBar[ScrollDir_Vert], "scroll_event",
- G_CALLBACK (window_scroll_event), this);
+ g_signal_connect(widget, "scroll_event", G_CALLBACK(scroll_event), this);
+ GtkRange* range = m_scrollBar[ScrollDir_Horz];
+ if (range)
+ g_signal_connect(range, "scroll_event", G_CALLBACK(scroll_event), this);
+ range = m_scrollBar[ScrollDir_Vert];
+ if (range)
+ g_signal_connect(range, "scroll_event", G_CALLBACK(scroll_event), this);
g_signal_connect (widget, "popup_menu",
G_CALLBACK (wxgtk_window_popup_menu_callback), this);
projects / wxWidgets.git / blobdiff