// 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>
//-----------------------------------------------------------------------------
-// wxScrollBar
+// data
+//-----------------------------------------------------------------------------
+
+extern bool g_blockEventsOnDrag;
+extern bool g_blockEventsOnScroll;
+
+//-----------------------------------------------------------------------------
+// "value_changed"
//-----------------------------------------------------------------------------
-void gtk_scrollbar_callback( GtkWidget *WXUNUSED(widget), wxScrollBar *win )
+static void gtk_scrollbar_callback( GtkWidget *WXUNUSED(widget), wxScrollBar *win )
{
-/*
- printf( "OnScroll from " );
- if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
- printf( win->GetClassInfo()->GetClassName() );
- printf( ".\n" );
-*/
-
if (!win->HasVMT()) return;
+ if (g_blockEventsOnDrag) return;
float diff = win->m_adjust->value - win->m_oldPos;
if (fabs(diff) < 0.2) return;
float line_step = win->m_adjust->step_increment;
float page_step = win->m_adjust->page_increment;
- if (fabs(diff-line_step) < 0.2) command = wxEVT_SCROLL_LINEDOWN;
- else if (fabs(diff+line_step) < 0.2) command = wxEVT_SCROLL_LINEUP;
- else if (fabs(diff-page_step) < 0.2) command = wxEVT_SCROLL_PAGEDOWN;
- else if (fabs(diff+page_step) < 0.2) command = wxEVT_SCROLL_PAGEUP;
- else command = wxEVT_SCROLL_THUMBTRACK;
+ if (win->m_isScrolling)
+ {
+ command = wxEVT_SCROLL_THUMBTRACK;
+ }
+ else
+ {
+ if (fabs(win->m_adjust->value-win->m_adjust->lower) < 0.2) command = wxEVT_SCROLL_BOTTOM;
+ else if (fabs(win->m_adjust->value-win->m_adjust->upper) < 0.2) command = wxEVT_SCROLL_TOP;
+ else if (fabs(diff-line_step) < 0.2) command = wxEVT_SCROLL_LINEDOWN;
+ else if (fabs(diff+line_step) < 0.2) command = wxEVT_SCROLL_LINEUP;
+ else if (fabs(diff-page_step) < 0.2) command = wxEVT_SCROLL_PAGEDOWN;
+ else if (fabs(diff+page_step) < 0.2) command = wxEVT_SCROLL_PAGEUP;
+ else command = wxEVT_SCROLL_THUMBTRACK;
+ }
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 );
cevent.SetEventObject( win );
win->ProcessEvent( cevent );
*/
-};
+}
-IMPLEMENT_DYNAMIC_CLASS(wxScrollBar,wxControl)
+//-----------------------------------------------------------------------------
+// "button_press_event" from slider
+//-----------------------------------------------------------------------------
-wxScrollBar::wxScrollBar(wxWindow *parent, wxWindowID id,
- const wxPoint& pos, const wxSize& size,
- long style, const wxString& name )
+static gint gtk_scrollbar_button_press_callback( GtkRange *WXUNUSED(widget),
+ GdkEventButton *WXUNUSED(gdk_event),
+ wxScrollBar *win )
{
- Create( parent, id, pos, size, style, name );
-};
+ win->m_isScrolling = TRUE;
+ g_blockEventsOnScroll = TRUE;
+
+ return FALSE;
+}
+
+//-----------------------------------------------------------------------------
+// "button_release_event" from slider
+//-----------------------------------------------------------------------------
+
+static gint gtk_scrollbar_button_release_callback( GtkRange *WXUNUSED(widget),
+ GdkEventButton *WXUNUSED(gdk_event),
+ wxScrollBar *win )
+{
+ win->m_isScrolling = FALSE;
+ g_blockEventsOnScroll = FALSE;
+
+ gtk_signal_emit_by_name( GTK_OBJECT(win->m_adjust), "value_changed" );
+
+ return FALSE;
+}
+
+//-----------------------------------------------------------------------------
+// wxScrollBar
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(wxScrollBar,wxControl)
wxScrollBar::~wxScrollBar(void)
{
-};
+}
bool wxScrollBar::Create(wxWindow *parent, wxWindowID id,
const wxPoint& pos, const wxSize& size,
- long style, const wxString& name )
+ long style, const wxValidator& validator, const wxString& name )
{
m_needParent = TRUE;
PreCreation( parent, id, pos, size, style, name );
+ SetValidator( validator );
+
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;
-};
+}
-int wxScrollBar::GetPosition(void) const
+int wxScrollBar::GetThumbPosition(void) const
{
return (int)(m_adjust->value+0.5);
-};
+}
int wxScrollBar::GetThumbSize() const
{
return (int)(m_adjust->page_size+0.5);
-};
+}
int wxScrollBar::GetPageSize() const
{
return (int)(m_adjust->page_increment+0.5);
-};
+}
int wxScrollBar::GetRange() const
{
return (int)(m_adjust->upper+0.5);
-};
+}
-void wxScrollBar::SetPosition( int viewStart )
+void wxScrollBar::SetThumbPosition( int viewStart )
{
+ if (m_isScrolling) return;
+
float fpos = (float)viewStart;
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" );
-};
+}
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;
-
+ {
+ SetThumbPosition( 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" );
-};
+}
// Backward compatibility
int wxScrollBar::GetValue(void) const
{
- return GetPosition();
-};
+ return GetThumbPosition();
+}
void wxScrollBar::SetValue( int viewStart )
{
- SetPosition( viewStart );
-};
+ SetThumbPosition( viewStart );
+}
void wxScrollBar::GetValues( int *viewStart, int *viewLength, int *objectLength, int *pageLength ) const
{
*viewLength = range;
*objectLength = thumb;
*pageLength = page;
-};
+}
int wxScrollBar::GetViewLength() const
{
return (int)(m_adjust->upper+0.5);
-};
+}
int wxScrollBar::GetObjectLength() const
{
return (int)(m_adjust->page_size+0.5);
-};
+}
void wxScrollBar::SetPageSize( int pageLength )
{
int thumb = (int)(m_adjust->page_size+0.5);
int range = (int)(m_adjust->upper+0.5);
SetScrollbar( pos, thumb, range, pageLength );
-};
+}
void wxScrollBar::SetObjectLength( int objectLength )
{
int page = (int)(m_adjust->page_increment+0.5);
int range = (int)(m_adjust->upper+0.5);
SetScrollbar( pos, objectLength, range, page );
-};
+}
void wxScrollBar::SetViewLength( int viewLength )
{
int thumb = (int)(m_adjust->page_size+0.5);
int page = (int)(m_adjust->page_increment+0.5);
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 );
+}
projects / wxWidgets.git / blobdiff