/////////////////////////////////////////////////////////////////////////////
-// Name: scrolbar.cpp
+// Name: src/gtk/scrolbar.cpp
// Purpose:
// Author: Robert Roebling
// Id: $Id$
// Copyright: (c) 1998 Robert Roebling
-// Licence: wxWindows licence
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "scrolbar.h"
#endif
-#include "wx/scrolbar.h"
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
#if wxUSE_SCROLLBAR
-#include "wx/utils.h"
-
-#include <math.h>
+#include "wx/scrolbar.h"
-#include <gdk/gdk.h>
-#include <gtk/gtk.h>
+#include "wx/utils.h"
+#include "wx/math.h"
+#include "wx/gtk/private.h"
//-----------------------------------------------------------------------------
// idle system
extern bool g_blockEventsOnDrag;
extern bool g_blockEventsOnScroll;
+static wxEventType g_currentUpDownEvent = wxEVT_NULL;
static const float sensitivity = 0.02;
// "value_changed"
//-----------------------------------------------------------------------------
-static void gtk_scrollbar_callback( GtkAdjustment *adjust, wxScrollBar *win )
-{
+// FIXME: is GtkScrollType really passed to us as 2nd argument?
+
+static void gtk_scrollbar_callback( GtkAdjustment *adjust,
+ SCROLLBAR_CBACK_ARG
+ wxScrollBar *win )
+{
if (g_isIdle) wxapp_install_idle_handler();
if (!win->m_hasVMT) return;
if (g_blockEventsOnDrag) return;
-
+
float diff = adjust->value - win->m_oldPos;
if (fabs(diff) < sensitivity) return;
-
+
win->m_oldPos = adjust->value;
- GtkRange *range = GTK_RANGE( win->m_widget );
+ wxEventType command = GtkScrollTypeToWx(GET_SCROLL_TYPE(win->m_widget));
- wxEventType command = wxEVT_SCROLL_THUMBTRACK;
- if (range->scroll_type == GTK_SCROLL_STEP_BACKWARD) command = wxEVT_SCROLL_LINEUP;
- else if (range->scroll_type == GTK_SCROLL_STEP_FORWARD) command = wxEVT_SCROLL_LINEDOWN;
- else if (range->scroll_type == GTK_SCROLL_PAGE_BACKWARD) command = wxEVT_SCROLL_PAGEUP;
- else if (range->scroll_type == GTK_SCROLL_PAGE_FORWARD) command = wxEVT_SCROLL_PAGEDOWN;
-
double dvalue = adjust->value;
- int value = (int)(dvalue >= 0 ? dvalue - 0.5 : dvalue + 0.5);
-
+ int value = (int)(dvalue < 0 ? dvalue - 0.5 : dvalue + 0.5);
+
int orient = win->HasFlag(wxSB_VERTICAL) ? wxVERTICAL : wxHORIZONTAL;
-
- wxScrollEvent event( command, win->GetId(), value, orient );
+
+ // throw a LINEUP / LINEDOWN event if necessary
+ if (g_currentUpDownEvent != wxEVT_NULL)
+ {
+ wxScrollEvent event( g_currentUpDownEvent, win->GetId(), value, orient );
+ event.SetEventObject( win );
+ win->GetEventHandler()->ProcessEvent( event );
+ }
+
+ // throw other event (wxEVT_SCROLL_THUMBTRACK)
+ wxScrollEvent event( command, win->GetId(), value, orient );
event.SetEventObject( win );
win->GetEventHandler()->ProcessEvent( event );
-
+
/*
wxCommandEvent cevent( wxEVT_COMMAND_SCROLLBAR_UPDATED, win->GetId() );
cevent.SetEventObject( win );
//-----------------------------------------------------------------------------
// "button_press_event" from slider
//-----------------------------------------------------------------------------
-
-static gint gtk_scrollbar_button_press_callback( GtkRange *widget,
- GdkEventButton *gdk_event,
+static gint gtk_scrollbar_button_press_callback( GtkRange *widget,
+ GdkEventButton *gdk_event,
wxScrollBar *win )
{
if (g_isIdle) wxapp_install_idle_handler();
-// g_blockEventsOnScroll = TRUE; doesn't work in DialogEd
-
+ // check if a LINEUP/LINEDOWN event must be thrown
+ // I suppose here the size of scrollbar top/bottom buttons is 16px height
+ if (gdk_event->type == GDK_BUTTON_PRESS && gdk_event->button == 1)
+ {
+ int scroll_height, mouse_pos;
+
+ // get the mouse position when the click is done
+ if (win->HasFlag(wxSB_VERTICAL))
+ {
+ scroll_height = GTK_WIDGET(widget)->allocation.height - 16;
+ mouse_pos = (int)gdk_event->y;
+ }
+ else
+ {
+ scroll_height = GTK_WIDGET(widget)->allocation.width - 16;
+ mouse_pos = (int)gdk_event->x;
+ }
+
+ // compare mouse position to scrollbar height
+ if (mouse_pos > scroll_height)
+ g_currentUpDownEvent = wxEVT_SCROLL_LINEDOWN;
+ else if (mouse_pos < 16)
+ g_currentUpDownEvent = wxEVT_SCROLL_LINEUP;
+ }
+
+#ifndef __WXGTK20__
+ // There is no slider field any more
win->m_isScrolling = (gdk_event->window == widget->slider);
-
+#endif
+
return FALSE;
}
// "button_release_event" from slider
//-----------------------------------------------------------------------------
-static gint gtk_scrollbar_button_release_callback( GtkRange *WXUNUSED(widget),
- GdkEventButton *WXUNUSED(gdk_event),
- wxScrollBar *win )
+static gint
+gtk_scrollbar_button_release_callback( GtkRange *WXUNUSED(widget),
+ GdkEventButton *WXUNUSED(gdk_event),
+ wxScrollBar *win )
{
- if (g_isIdle) wxapp_install_idle_handler();
-
-// g_blockEventsOnScroll = FALSE;
-
+ if (g_isIdle)
+ wxapp_install_idle_handler();
+
if (win->m_isScrolling)
{
wxEventType command = wxEVT_SCROLL_THUMBRELEASE;
int value = (int)ceil(win->m_adjust->value);
- int dir = win->HasFlag(wxSB_VERTICAL) ? wxVERTICAL : wxHORIZONTAL;
+ int orient = win->HasFlag(wxSB_VERTICAL) ? wxVERTICAL : wxHORIZONTAL;
- wxScrollEvent event( command, value, dir );
+ wxScrollEvent event( command, win->GetId(), value, orient );
event.SetEventObject( win );
win->GetEventHandler()->ProcessEvent( event );
}
-
+
win->m_isScrolling = FALSE;
-
+
+ // reset the LINEUP/LINEDOWN flag when the mouse button is released
+ g_currentUpDownEvent = wxEVT_NULL;
+
return FALSE;
}
{
m_needParent = TRUE;
m_acceptsFocus = TRUE;
-
+
if (!PreCreation( parent, pos, size ) ||
!CreateBase( parent, id, pos, size, style, validator, name ))
{
m_widget = gtk_hscrollbar_new( (GtkAdjustment *) NULL );
m_adjust = gtk_range_get_adjustment( GTK_RANGE(m_widget) );
-
- gtk_signal_connect( GTK_OBJECT(m_adjust),
+
+ gtk_signal_connect( GTK_OBJECT(m_adjust),
"value_changed",
- (GtkSignalFunc) gtk_scrollbar_callback,
+ (GtkSignalFunc) gtk_scrollbar_callback,
(gpointer) this );
-
- gtk_signal_connect( GTK_OBJECT(m_widget),
+ gtk_signal_connect( GTK_OBJECT(m_widget),
"button_press_event",
- (GtkSignalFunc)gtk_scrollbar_button_press_callback,
+ (GtkSignalFunc)gtk_scrollbar_button_press_callback,
(gpointer) this );
-
- gtk_signal_connect( GTK_OBJECT(m_widget),
+ gtk_signal_connect( GTK_OBJECT(m_widget),
"button_release_event",
- (GtkSignalFunc)gtk_scrollbar_button_release_callback,
+ (GtkSignalFunc)gtk_scrollbar_button_release_callback,
(gpointer) this );
m_parent->DoAddChild( this );
-
- PostCreation();
-
- SetBackgroundColour( parent->GetBackgroundColour() );
- Show( TRUE );
-
+ PostCreation(size);
+
return TRUE;
}
int wxScrollBar::GetThumbPosition() const
{
double val = m_adjust->value;
- return (int)(val >= 0 ? val - 0.5 : val + 0.5);
+ return (int)(val < 0 ? val - 0.5 : val + 0.5);
}
int wxScrollBar::GetThumbSize() const
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_disconnect_by_func( GTK_OBJECT(m_adjust),
- (GtkSignalFunc) gtk_scrollbar_callback,
+
+ gtk_signal_disconnect_by_func( GTK_OBJECT(m_adjust),
+ (GtkSignalFunc) gtk_scrollbar_callback,
(gpointer) this );
-
+
gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "value_changed" );
-
- gtk_signal_connect( GTK_OBJECT(m_adjust),
+
+ gtk_signal_connect( GTK_OBJECT(m_adjust),
"value_changed",
- (GtkSignalFunc) gtk_scrollbar_callback,
+ (GtkSignalFunc) gtk_scrollbar_callback,
(gpointer) this );
}
float frange = (float)range;
float fthumb = (float)thumbSize;
float fpage = (float)pageSize;
-
+
if ((fabs(frange-m_adjust->upper) < 0.2) &&
(fabs(fthumb-m_adjust->page_size) < 0.2) &&
(fabs(fpage-m_adjust->page_increment) < 0.2))
SetThumbPosition( position );
return;
}
-
+
m_oldPos = fpos;
-
+
m_adjust->lower = 0.0;
m_adjust->upper = frange;
m_adjust->value = fpos;
int thumb = (int)(m_adjust->page_size+0.5);
int page = (int)(m_adjust->page_increment+0.5);
int range = (int)(m_adjust->upper+0.5);
-
+
*viewStart = pos;
*viewLength = range;
*objectLength = thumb;
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) );
+ return ( (window == GTK_WIDGET(range)->window)
+#ifndef __WXGTK20__
+ || (window == range->trough)
+ || (window == range->slider)
+ || (window == range->step_forw)
+ || (window == range->step_back)
+#endif // GTK+ 1.x
+ );
+}
+
+wxSize wxScrollBar::DoGetBestSize() const
+{
+ return wxControl::DoGetBestSize();
}
-void wxScrollBar::ApplyWidgetStyle()
+// static
+wxVisualAttributes
+wxScrollBar::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
{
- SetWidgetStyle();
- gtk_widget_set_style( m_widget, m_widgetStyle );
+ return GetDefaultAttributesFromGTKWidget(gtk_vscrollbar_new);
}
#endif
projects / wxWidgets.git / blobdiff