// Name: scrolbar.cpp
// Purpose:
// Author: Robert Roebling
-// Created: 01/02/97
-// Id:
-// Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
+// Id: $Id$
+// Copyright: (c) 1998 Robert Roebling
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#include "wx/scrolbar.h"
#include "wx/utils.h"
+#include <math.h>
//-----------------------------------------------------------------------------
// data
extern bool g_blockEventsOnDrag;
//-----------------------------------------------------------------------------
-// wxScrollBar
+// "value_changed"
//-----------------------------------------------------------------------------
static void gtk_scrollbar_callback( GtkWidget *WXUNUSED(widget), wxScrollBar *win )
int value = (int)(win->m_adjust->value+0.5);
int orient = wxHORIZONTAL;
- if (win->GetWindowStyleFlag() & wxSB_VERTICAL == wxSB_VERTICAL) orient = wxHORIZONTAL;
+ if (win->GetWindowStyleFlag() & wxSB_VERTICAL == wxSB_VERTICAL) orient = wxVERTICAL;
wxScrollEvent event( command, win->GetId(), value, orient );
event.SetEventObject( win );
*/
}
+//-----------------------------------------------------------------------------
+// "button_press_event" from slider
+//-----------------------------------------------------------------------------
+
+static gint gtk_scrollbar_button_press_callback( GtkRange *widget, GdkEventButton *gdk_event, wxScrollBar *win )
+{
+ if (gdk_event->window != widget->slider) return FALSE;
+
+ win->m_isScrolling = TRUE;
+
+ return FALSE;
+}
+
+//-----------------------------------------------------------------------------
+// "button_release_event" from slider
+//-----------------------------------------------------------------------------
+
+static gint gtk_scrollbar_button_release_callback( GtkRange *widget, GdkEventButton *gdk_event, wxScrollBar *win )
+{
+ if (gdk_event->window != widget->slider) return FALSE;
+
+ gtk_signal_emit_by_name( GTK_OBJECT(win->m_adjust), "value_changed" );
+
+ win->m_isScrolling = FALSE;
+
+ return FALSE;
+}
+
+//-----------------------------------------------------------------------------
+// wxScrollBar
+//-----------------------------------------------------------------------------
+
IMPLEMENT_DYNAMIC_CLASS(wxScrollBar,wxControl)
wxScrollBar::~wxScrollBar(void)
m_oldPos = 0.0;
if (style & wxSB_VERTICAL == wxSB_VERTICAL)
- m_widget = gtk_hscrollbar_new( NULL );
+ m_widget = gtk_hscrollbar_new( (GtkAdjustment *) NULL );
else
- m_widget = gtk_vscrollbar_new( NULL );
+ m_widget = gtk_vscrollbar_new( (GtkAdjustment *) NULL );
m_adjust = gtk_range_get_adjustment( GTK_RANGE(m_widget) );
gtk_signal_connect (GTK_OBJECT (m_adjust), "value_changed",
(GtkSignalFunc) gtk_scrollbar_callback, (gpointer) this );
+ gtk_signal_connect( GTK_OBJECT(m_widget), "button_press_event",
+ (GtkSignalFunc)gtk_scrollbar_button_press_callback, (gpointer) this );
+
+ gtk_signal_connect( GTK_OBJECT(m_widget), "button_release_event",
+ (GtkSignalFunc)gtk_scrollbar_button_release_callback, (gpointer) this );
+
+ m_parent->AddChild( this );
+
+ (m_parent->m_insertCallback)( m_parent, this );
+
PostCreation();
+ SetBackgroundColour( parent->GetBackgroundColour() );
+
Show( TRUE );
return TRUE;
m_oldPos = fpos;
if (fabs(fpos-m_adjust->value) < 0.2) return;
m_adjust->value = fpos;
-
- gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "value_changed" );
+
+ if (!m_isScrolling)
+ gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "value_changed" );
}
void wxScrollBar::SetScrollbar( int position, int thumbSize, int range, int pageSize,
bool WXUNUSED(refresh) )
{
float fpos = (float)position;
- m_oldPos = fpos;
float frange = (float)range;
float fthumb = (float)thumbSize;
float fpage = (float)pageSize;
- if ((fabs(fpos-m_adjust->value) < 0.2) &&
- (fabs(frange-m_adjust->upper) < 0.2) &&
+ if ((fabs(frange-m_adjust->upper) < 0.2) &&
(fabs(fthumb-m_adjust->page_size) < 0.2) &&
(fabs(fpage-m_adjust->page_increment) < 0.2))
- return;
-
+ {
+ SetPosition( position );
+ return;
+ }
+
+ m_oldPos = fpos;
+
m_adjust->lower = 0.0;
m_adjust->upper = frange;
m_adjust->value = fpos;
m_adjust->step_increment = 1.0;
- m_adjust->page_increment = (float)(wxMax(fpage-2,0));
+ m_adjust->page_increment = (float)(wxMax(fpage,0));
m_adjust->page_size = fthumb;
gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" );
SetScrollbar( pos, thumb, viewLength, page );
}
+bool wxScrollBar::IsOwnGtkWindow( GdkWindow *window )
+{
+ GtkRange *range = GTK_RANGE(m_widget);
+ return ( (window == GTK_WIDGET(range)->window) ||
+ (window == range->trough) ||
+ (window == range->slider) ||
+ (window == range->step_forw) ||
+ (window == range->step_back) );
+}
+
+void wxScrollBar::ApplyWidgetStyle()
+{
+ SetWidgetStyle();
+ gtk_widget_set_style( m_widget, m_widgetStyle );
+}
+