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Override mouse wheel scrolling steps from GTK and make the default 3 steps, also catch mouse wheel when over scrollbars

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@57900 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robert Roebling
2009-01-08 10:46:18 +00:00
parent f96a610d31
commit 7f25155930
1 changed files with 64 additions and 4 deletions
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62
src/gtk/window.cpp
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@@ -1547,6 +1547,38 @@ gtk_window_motion_notify_callback( GtkWidget * WXUNUSED(widget),
// "scroll_event" (mouse wheel event)
//-----------------------------------------------------------------------------
static gboolean
window_scroll_event_hscrollbar(GtkWidget*, GdkEventScroll* gdk_event, wxWindow* win)
{
if (gdk_event->direction != GDK_SCROLL_LEFT &&
gdk_event->direction != GDK_SCROLL_RIGHT)
{
return false;
}
wxMouseEvent event(wxEVT_MOUSEWHEEL);
InitMouseEvent(win, event, gdk_event);
GtkRange *range = win->m_scrollBar[wxWindow::ScrollDir_Horz];
if (!range) return FALSE;
if (range && GTK_WIDGET_VISIBLE (range))
{
GtkAdjustment *adj = range->adjustment;
gdouble delta = adj->step_increment * 3;
if (gdk_event->direction == GDK_SCROLL_LEFT)
delta = -delta;
gdouble new_value = CLAMP (adj->value + delta, adj->lower, adj->upper - adj->page_size);
gtk_adjustment_set_value (adj, new_value);
return TRUE;
}
return FALSE;
}
static gboolean
window_scroll_event(GtkWidget*, GdkEventScroll* gdk_event, wxWindow* win)
{
@@ -1567,7 +1599,27 @@ window_scroll_event(GtkWidget*, GdkEventScroll* gdk_event, wxWindow* win)
else
event.m_wheelRotation = -120;
return win->GTKProcessEvent(event);
if (win->GTKProcessEvent(event))
return TRUE;
GtkRange *range = win->m_scrollBar[wxWindow::ScrollDir_Vert];
if (!range) return FALSE;
if (range && GTK_WIDGET_VISIBLE (range))
{
GtkAdjustment *adj = range->adjustment;
gdouble delta = adj->step_increment * 3;
if (gdk_event->direction == GDK_SCROLL_UP)
delta = -delta;
gdouble new_value = CLAMP (adj->value + delta, adj->lower, adj->upper - adj->page_size);
gtk_adjustment_set_value (adj, new_value);
return TRUE;
}
return FALSE;
}
//-----------------------------------------------------------------------------
@@ -2356,8 +2408,16 @@ void wxWindowGTK::ConnectWidget( GtkWidget *widget )
G_CALLBACK (gtk_window_button_release_callback), this);
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, "popup_menu",
G_CALLBACK (wxgtk_window_popup_menu_callback), this);
g_signal_connect (widget, "enter_notify_event",