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Fixed problems when the notebook is empty

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This commit is contained in:
Joel Holdsworth 2008-12-06 20:05:14 +00:00
parent b27545e105
commit 0799a4d297
1 changed files with 18 additions and 12 deletions
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30
src/gui/panels/timeline-panel.cpp
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@ -271,12 +271,14 @@ void
TimelinePanel::update_zoom_buttons()
{
TimelineWidget *const widget = get_current_page();
ASSERT(widget != NULL);
zoomIn.set_sensitive(widget->get_view_window().get_time_scale()
!= 1);
zoomOut.set_sensitive(widget->get_view_window().get_time_scale()
!= TimelineWidget::MaxScale);
if(widget != NULL)
{
zoomIn.set_sensitive(widget->get_view_window().get_time_scale()
!= 1);
zoomOut.set_sensitive(widget->get_view_window().get_time_scale()
!= TimelineWidget::MaxScale);
}
}
void
@ -302,12 +304,13 @@ TimelinePanel::set_tool(timeline::ToolType tool)
{
if(updatingToolbar) return;
TimelineWidget *const widget = get_current_page();
ASSERT(widget != NULL);
currentTool = tool;
widget->set_tool(tool);
update_tool_buttons();
TimelineWidget *const widget = get_current_page();
if(widget != NULL)
{
currentTool = tool;
widget->set_tool(tool);
update_tool_buttons();
}
}
void
@ -319,7 +322,10 @@ TimelinePanel::show_time(gavl_time_t time)
TimelineWidget*
TimelinePanel::get_current_page()
{
Widget* const widget = (*notebook.get_current()).get_child();
Notebook::PageList::iterator page_iterator = notebook.get_current();
if(!page_iterator) return NULL;
Widget* const widget = (*page_iterator).get_child();
REQUIRE(widget != NULL);
return (TimelineWidget*)widget;
}