static void scroll_v_action( GtkWidget *w,
gpointer data)
{
FlowWidgetGtk *floww = (FlowWidgetGtk *)data;
if ( floww->scroll_v_ignore) {
floww->scroll_v_ignore = 0;
return;
}
FlowCtx *ctx = (FlowCtx *) floww->flow_ctx;
gdouble value;
value = gtk_range_get_value( GTK_RANGE(floww->scroll_v));
if ( value == 0 && fabs( floww->scroll_v_value) > 2) {
// Probably a resize that seems to set value to zero, set old value
ctx->change_scrollbar();
return;
}
floww->scroll_v_value = value;
flow_scroll_vertical( ctx, int(value), 0);
}
static void scroll_v_action( Widget w,
XtPointer client_data,
XtPointer call_data)
{
XmScrollBarCallbackStruct *cbs = (XmScrollBarCallbackStruct *) call_data;
FlowCtx *ctx = (FlowCtx *) ((FlowWidget) client_data)->flow.flow_ctx;
Arg arg[20];
int i;
int maximum, slider, value, bottom;
// Calculate if position is bottom
i = 0;
XtSetArg( arg[i], XmNmaximum, &maximum);i++;
XtSetArg( arg[i], XmNsliderSize, &slider);i++;
XtSetArg( arg[i], XmNvalue, &value);i++;
XtGetValues( w, arg, i);
if ( slider + value == maximum)
bottom = 1;
else
bottom = 0;
switch( cbs->reason)
{
case XmCR_DRAG:
case XmCR_VALUE_CHANGED:
case XmCR_INCREMENT:
case XmCR_DECREMENT:
case XmCR_PAGE_INCREMENT:
case XmCR_PAGE_DECREMENT:
case XmCR_TO_TOP:
case XmCR_TO_BOTTOM:
flow_scroll_vertical( ctx, cbs->value, bottom);
break;
}
}
