+/////////////////////////////////////////////////////////////////////////////
+// Name: spinbutt.cpp
+// Purpose: wxSpinCtrl
+// Author: Robert
+// Modified by:
+// RCS-ID: $Id$
+// Copyright: (c) Robert Roebling
+// Licence: wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifdef __GNUG__
+#pragma implementation "spinctrl.h"
+#endif
+
+#include "wx/spinctrl.h"
+
+#ifdef wxUSE_SPINBTN
+
+#include "wx/utils.h"
+#include "wx/spinbutt.h"
+#include <math.h>
+
+#include "gdk/gdk.h"
+#include "gtk/gtk.h"
+
+//-----------------------------------------------------------------------------
+// idle system
+//-----------------------------------------------------------------------------
+
+extern void wxapp_install_idle_handler();
+extern bool g_isIdle;
+
+//-----------------------------------------------------------------------------
+// data
+//-----------------------------------------------------------------------------
+
+extern bool g_blockEventsOnDrag;
+
+static const float sensitivity = 0.02;
+
+//-----------------------------------------------------------------------------
+// "value_changed"
+//-----------------------------------------------------------------------------
+
+static void gtk_spinctrl_callback( GtkWidget *WXUNUSED(widget), wxSpinCtrl *win )
+{
+ if (g_isIdle) wxapp_install_idle_handler();
+
+ if (!win->m_hasVMT) return;
+ if (g_blockEventsOnDrag) return;
+
+ float diff = win->m_adjust->value - win->m_oldPos;
+ if (fabs(diff) < sensitivity) return;
+ win->m_oldPos = win->m_adjust->value;
+
+ wxEventType command = wxEVT_NULL;
+
+ float line_step = win->m_adjust->step_increment;
+
+ if (fabs(diff-line_step) < sensitivity) command = wxEVT_SCROLL_LINEDOWN;
+ else if (fabs(diff+line_step) < sensitivity) command = wxEVT_SCROLL_LINEUP;
+ else command = wxEVT_SCROLL_THUMBTRACK;
+
+ int value = (int)ceil(win->m_adjust->value);
+
+ wxSpinEvent event( command, win->GetId());
+ event.SetPosition( value );
+ event.SetEventObject( win );
+ win->GetEventHandler()->ProcessEvent( event );
+
+ /* always send a thumbtrack event */
+ if (command != wxEVT_SCROLL_THUMBTRACK)
+ {
+ command = wxEVT_SCROLL_THUMBTRACK;
+ wxSpinEvent event2( command, win->GetId());
+ event2.SetPosition( value );
+ event2.SetEventObject( win );
+ win->GetEventHandler()->ProcessEvent( event2 );
+ }
+}
+
+//-----------------------------------------------------------------------------
+// wxSpinCtrl
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(wxSpinCtrl,wxControl)
+
+bool wxSpinCtrl::Create(wxWindow *parent, wxWindowID id,
+ const wxPoint& pos, const wxSize& size,
+ long style,
+ int min, int max, int initial,
+ const wxString& name)
+{
+ m_needParent = TRUE;
+
+ wxSize new_size = size;
+ if (new_size.y == -1)
+ new_size.y = 26;
+
+ if (!PreCreation( parent, pos, new_size ) ||
+ !CreateBase( parent, id, pos, new_size, style, wxDefaultValidator, name ))
+ {
+ wxFAIL_MSG( wxT("wxSpinCtrl creation failed") );
+ return FALSE;
+ }
+
+ m_oldPos = initial;
+
+ m_adjust = (GtkAdjustment*) gtk_adjustment_new( initial, min, max, 1.0, 5.0, 0.0);
+
+ m_widget = gtk_spin_button_new( m_adjust, 1, 0 );
+
+ gtk_spin_button_set_wrap( GTK_SPIN_BUTTON(m_widget), (m_windowStyle & wxSP_WRAP) );
+
+ gtk_signal_connect( GTK_OBJECT (m_adjust),
+ "value_changed",
+ (GtkSignalFunc) gtk_spinctrl_callback,
+ (gpointer) this );
+
+ m_parent->DoAddChild( this );
+
+ PostCreation();
+
+ SetBackgroundColour( parent->GetBackgroundColour() );
+
+ Show( TRUE );
+
+ return TRUE;
+}
+
+int wxSpinCtrl::GetMin() const
+{
+ wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") );
+
+ return (int)ceil(m_adjust->lower);
+}
+
+int wxSpinCtrl::GetMax() const
+{
+ wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") );
+
+ return (int)ceil(m_adjust->upper);
+}
+
+int wxSpinCtrl::GetValue() const
+{
+ wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") );
+
+ return (int)ceil(m_adjust->value);
+}
+
+void wxSpinCtrl::SetValue( int value )
+{
+ wxCHECK_RET( (m_widget != NULL), wxT("invalid spin button") );
+
+ float fpos = (float)value;
+ m_oldPos = fpos;
+ if (fabs(fpos-m_adjust->value) < sensitivity) return;
+
+ m_adjust->value = fpos;
+
+ gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "value_changed" );
+}
+
+void wxSpinCtrl::SetRange(int minVal, int maxVal)
+{
+ wxCHECK_RET( (m_widget != NULL), wxT("invalid spin button") );
+
+ float fmin = (float)minVal;
+ float fmax = (float)maxVal;
+
+ if ((fabs(fmin-m_adjust->lower) < sensitivity) &&
+ (fabs(fmax-m_adjust->upper) < sensitivity))
+ {
+ return;
+ }
+
+ m_adjust->lower = fmin;
+ m_adjust->upper = fmax;
+
+ gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" );
+
+ // these two calls are required due to some bug in GTK
+ Refresh();
+ SetFocus();
+}
+
+bool wxSpinCtrl::IsOwnGtkWindow( GdkWindow *window )
+{
+ return GTK_SPIN_BUTTON(m_widget)->panel == window;
+}
+
+void wxSpinCtrl::ApplyWidgetStyle()
+{
+ SetWidgetStyle();
+ gtk_widget_set_style( m_widget, m_widgetStyle );
+}
+
+#endif
projects / wxWidgets.git / commitdiff
