]> git.saurik.com Git - wxWidgets.git/blobdiff - src/gtk/scrolbar.cpp
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[wxWidgets.git] / src / gtk / scrolbar.cpp
index 4aa408af1f440c51ac5a7e496176669d8600dc2a..3a44d755f05e2c5f8cf49d593dd0358904e4b5c2 100644 (file)
@@ -7,11 +7,6 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "scrolbar.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -20,9 +15,7 @@
 #include "wx/scrolbar.h"
 
 #include "wx/utils.h"
-
-#include <math.h>
-
+#include "wx/math.h"
 #include "wx/gtk/private.h"
 
 //-----------------------------------------------------------------------------
@@ -37,7 +30,7 @@ extern bool g_isIdle;
 //-----------------------------------------------------------------------------
 
 extern bool   g_blockEventsOnDrag;
-extern bool   g_blockEventsOnScroll;
+static wxEventType g_currentUpDownEvent = wxEVT_NULL;
 
 static const float sensitivity = 0.02;
 
@@ -47,8 +40,8 @@ static const float sensitivity = 0.02;
 
 // FIXME: is GtkScrollType really passed to us as 2nd argument?
 
+extern "C" {
 static void gtk_scrollbar_callback( GtkAdjustment *adjust,
-                                    SCROLLBAR_CBACK_ARG
                                     wxScrollBar *win )
 {
     if (g_isIdle) wxapp_install_idle_handler();
@@ -61,13 +54,22 @@ static void gtk_scrollbar_callback( GtkAdjustment *adjust,
 
     win->m_oldPos = adjust->value;
 
-    wxEventType command = GtkScrollTypeToWx(GET_SCROLL_TYPE(win->m_widget));
+    wxEventType command = GtkScrollTypeToWx(GTK_SCROLL_JUMP);
 
     double dvalue = adjust->value;
     int value = (int)(dvalue < 0 ? dvalue - 0.5 : dvalue + 0.5);
 
     int orient = win->HasFlag(wxSB_VERTICAL) ? wxVERTICAL : wxHORIZONTAL;
 
+    // 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 );
@@ -78,31 +80,52 @@ static void gtk_scrollbar_callback( GtkAdjustment *adjust,
     win->ProcessEvent( cevent );
 */
 }
+}
 
 //-----------------------------------------------------------------------------
 // "button_press_event" from slider
 //-----------------------------------------------------------------------------
-
+extern "C" {
 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
-
-    // FIXME: there is no slider field any more, what was meant here?
-#ifndef __WXGTK20__
-    win->m_isScrolling = (gdk_event->window == widget->slider);
-#endif
+    // 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;
+      }
 
     return FALSE;
 }
+}
 
 //-----------------------------------------------------------------------------
 // "button_release_event" from slider
 //-----------------------------------------------------------------------------
 
+extern "C" {
 static gint
 gtk_scrollbar_button_release_callback( GtkRange *WXUNUSED(widget),
                                        GdkEventButton *WXUNUSED(gdk_event),
@@ -111,8 +134,6 @@ gtk_scrollbar_button_release_callback( GtkRange *WXUNUSED(widget),
     if (g_isIdle)
         wxapp_install_idle_handler();
 
-//  g_blockEventsOnScroll = FALSE;
-
     if (win->m_isScrolling)
     {
         wxEventType command = wxEVT_SCROLL_THUMBRELEASE;
@@ -124,10 +145,14 @@ gtk_scrollbar_button_release_callback( GtkRange *WXUNUSED(widget),
         win->GetEventHandler()->ProcessEvent( event );
     }
 
-    win->m_isScrolling = FALSE;
+    win->m_isScrolling = false;
+
+    // reset the LINEUP/LINEDOWN flag when the mouse button is released
+    g_currentUpDownEvent = wxEVT_NULL;
 
     return FALSE;
 }
+}
 
 //-----------------------------------------------------------------------------
 // wxScrollBar
@@ -143,14 +168,14 @@ bool wxScrollBar::Create(wxWindow *parent, wxWindowID id,
            const wxPoint& pos, const wxSize& size,
            long style, const wxValidator& validator, const wxString& name )
 {
-    m_needParent = TRUE;
-    m_acceptsFocus = TRUE;
+    m_needParent = true;
+    m_acceptsFocus = true;
 
     if (!PreCreation( parent, pos, size ) ||
         !CreateBase( parent, id, pos, size, style, validator, name ))
     {
         wxFAIL_MSG( wxT("wxScrollBar creation failed") );
-        return FALSE;
+        return false;
     }
 
     m_oldPos = 0.0;
@@ -161,27 +186,25 @@ bool wxScrollBar::Create(wxWindow *parent, wxWindowID id,
         m_widget = gtk_hscrollbar_new( (GtkAdjustment *) NULL );
 
     m_adjust = gtk_range_get_adjustment( GTK_RANGE(m_widget) );
+    if ( style & wxSB_VERTICAL )
+    {
+        SetVScrollAdjustment(m_adjust);
+    }
 
-    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 );
+    g_signal_connect (m_adjust, "value_changed",
+                      G_CALLBACK (gtk_scrollbar_callback), this);
+    g_signal_connect (m_widget, "button_press_event",
+                      G_CALLBACK (gtk_scrollbar_button_press_callback),
+                      this);
+    g_signal_connect (m_widget, "button_release_event",
+                      G_CALLBACK (gtk_scrollbar_button_release_callback),
+                      this);
 
     m_parent->DoAddChild( this );
 
     PostCreation(size);
 
-    return TRUE;
+    return true;
 }
 
 int wxScrollBar::GetThumbPosition() const
@@ -214,16 +237,14 @@ void wxScrollBar::SetThumbPosition( int viewStart )
     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,
-                        (gpointer) this );
+    g_signal_handlers_disconnect_by_func (m_adjust,
+                                          (gpointer) gtk_scrollbar_callback,
+                                          this);
 
-    gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "value_changed" );
+    g_signal_emit_by_name (m_adjust, "value_changed");
 
-    gtk_signal_connect( GTK_OBJECT(m_adjust),
-                        "value_changed",
-                        (GtkSignalFunc) gtk_scrollbar_callback,
-                        (gpointer) this );
+    g_signal_connect (m_adjust, "value_changed",
+                      G_CALLBACK (gtk_scrollbar_callback), this);
 }
 
 void wxScrollBar::SetScrollbar( int position, int thumbSize, int range, int pageSize,
@@ -251,7 +272,7 @@ void wxScrollBar::SetScrollbar( int position, int thumbSize, int range, int page
     m_adjust->page_increment = (float)(wxMax(fpage,0));
     m_adjust->page_size = fthumb;
 
-    gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" );
+    g_signal_emit_by_name (m_adjust, "changed");
 }
 
 /* Backward compatibility */
@@ -315,25 +336,19 @@ void wxScrollBar::SetViewLength( int viewLength )
 bool wxScrollBar::IsOwnGtkWindow( GdkWindow *window )
 {
     GtkRange *range = GTK_RANGE(m_widget);
-    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
-           );
+    return ( (window == GTK_WIDGET(range)->window) );
 }
 
-void wxScrollBar::ApplyWidgetStyle()
+wxSize wxScrollBar::DoGetBestSize() const
 {
-    SetWidgetStyle();
-    gtk_widget_set_style( m_widget, m_widgetStyle );
+    return wxControl::DoGetBestSize();
 }
 
-wxSize wxScrollBar::DoGetBestSize() const
+// static
+wxVisualAttributes
+wxScrollBar::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 {
-    return wxControl::DoGetBestSize();
+    return GetDefaultAttributesFromGTKWidget(gtk_vscrollbar_new);
 }
 
 #endif