]> git.saurik.com Git - wxWidgets.git/blobdiff - samples/widgets/slider.cpp
Fix unintialized pointer in wxCommandProcessor when
[wxWidgets.git] / samples / widgets / slider.cpp
index d6a19916ccb8eb1f48ac4e7acc572da6170f70ea..b0f1fa8d3ebd66e9d248131def92cbe9a489d443 100644 (file)
@@ -28,6 +28,7 @@
 #ifndef WX_PRECOMP
     #include "wx/log.h"
 
+    #include "wx/bitmap.h"
     #include "wx/button.h"
     #include "wx/checkbox.h"
     #include "wx/radiobox.h"
     #include "wx/textctrl.h"
 #endif
 
+#if wxUSE_TOOLTIPS
+    #include "wx/tooltip.h"
+#endif
+
 #include "wx/sizer.h"
 
 #include "widgets.h"
+#if wxUSE_SLIDER
 #include "icons/slider.xpm"
 
 // ----------------------------------------------------------------------------
@@ -53,15 +59,27 @@ enum
     SliderPage_SetValue,
     SliderPage_SetMinAndMax,
     SliderPage_SetTickFreq,
+    SliderPage_SetThumbLen,
     SliderPage_CurValueText,
     SliderPage_ValueText,
     SliderPage_MinText,
     SliderPage_MaxText,
     SliderPage_TickFreqText,
-    SliderPage_OtherSide,
+    SliderPage_ThumbLenText,
+    SliderPage_RadioSides,
+    SliderPage_BothSides,
     SliderPage_Slider
 };
 
+// sides radiobox values
+enum
+{
+    StaticSides_Top,
+    StaticSides_Bottom,
+    StaticSides_Left,
+    StaticSides_Right
+};
+
 // ----------------------------------------------------------------------------
 // SliderWidgetsPage
 // ----------------------------------------------------------------------------
@@ -79,15 +97,18 @@ protected:
     void OnButtonSetValue(wxCommandEvent& event);
     void OnButtonSetMinAndMax(wxCommandEvent& event);
     void OnButtonSetTickFreq(wxCommandEvent& event);
+    void OnButtonSetThumbLen(wxCommandEvent& event);
 
     void OnCheckOrRadioBox(wxCommandEvent& event);
 
     void OnSlider(wxScrollEvent& event);
 
-    void OnUpdateUIOtherSide(wxUpdateUIEvent& event);
     void OnUpdateUIValueButton(wxUpdateUIEvent& event);
     void OnUpdateUIMinMaxButton(wxUpdateUIEvent& event);
     void OnUpdateUITickFreq(wxUpdateUIEvent& event);
+    void OnUpdateUIThumbLen(wxUpdateUIEvent& event);
+    void OnUpdateUIRadioSides(wxUpdateUIEvent& event);
+    void OnUpdateUIBothSides(wxUpdateUIEvent& event);
 
     void OnUpdateUIResetButton(wxUpdateUIEvent& event);
 
@@ -102,6 +123,9 @@ protected:
     // set the tick frequency from the text field value
     void DoSetTickFreq();
 
+    // set the thumb len from the text field value
+    void DoSetThumbLen();
+
     // is this slider value in range?
     bool IsValidValue(int val) const
         { return (val >= m_min) && (val <= m_max); }
@@ -114,9 +138,11 @@ protected:
 
     // the check/radio boxes for styles
     wxCheckBox *m_chkLabels,
-               *m_chkOtherSide,
                *m_chkVert,
-               *m_chkTicks;
+               *m_chkTicks,
+               *m_chkBothSides;
+
+    wxRadioBox *m_radioSides;
 
     // the slider itself and the sizer it is in
     wxSlider *m_slider;
@@ -126,7 +152,8 @@ protected:
     wxTextCtrl *m_textValue,
                *m_textMin,
                *m_textMax,
-               *m_textTickFreq;
+               *m_textTickFreq,
+               *m_textThumbLen;
 
 private:
     DECLARE_EVENT_TABLE()
@@ -142,13 +169,15 @@ BEGIN_EVENT_TABLE(SliderWidgetsPage, WidgetsPage)
     EVT_BUTTON(SliderPage_SetValue, SliderWidgetsPage::OnButtonSetValue)
     EVT_BUTTON(SliderPage_SetMinAndMax, SliderWidgetsPage::OnButtonSetMinAndMax)
     EVT_BUTTON(SliderPage_SetTickFreq, SliderWidgetsPage::OnButtonSetTickFreq)
-
-    EVT_UPDATE_UI(SliderPage_OtherSide, SliderWidgetsPage::OnUpdateUIOtherSide)
+    EVT_BUTTON(SliderPage_SetThumbLen, SliderWidgetsPage::OnButtonSetThumbLen)
 
     EVT_UPDATE_UI(SliderPage_SetValue, SliderWidgetsPage::OnUpdateUIValueButton)
     EVT_UPDATE_UI(SliderPage_SetMinAndMax, SliderWidgetsPage::OnUpdateUIMinMaxButton)
     EVT_UPDATE_UI(SliderPage_SetTickFreq, SliderWidgetsPage::OnUpdateUITickFreq)
+    EVT_UPDATE_UI(SliderPage_SetThumbLen, SliderWidgetsPage::OnUpdateUIThumbLen)
     EVT_UPDATE_UI(SliderPage_TickFreqText, SliderWidgetsPage::OnUpdateUITickFreq)
+    EVT_UPDATE_UI(SliderPage_RadioSides, SliderWidgetsPage::OnUpdateUIRadioSides)
+    EVT_UPDATE_UI(SliderPage_BothSides, SliderWidgetsPage::OnUpdateUIBothSides)
 
     EVT_UPDATE_UI(SliderPage_Reset, SliderWidgetsPage::OnUpdateUIResetButton)
 
@@ -179,7 +208,9 @@ SliderWidgetsPage::SliderWidgetsPage(wxNotebook *notebook,
     m_chkVert =
     m_chkTicks =
     m_chkLabels =
-    m_chkOtherSide = (wxCheckBox *)NULL;
+    m_chkBothSides = (wxCheckBox *)NULL;
+
+    m_radioSides = (wxRadioBox *)NULL;
 
     m_slider = (wxSlider *)NULL;
     m_sizerSlider = (wxSizer *)NULL;
@@ -193,12 +224,23 @@ SliderWidgetsPage::SliderWidgetsPage(wxNotebook *notebook,
     m_chkVert = CreateCheckBoxAndAddToSizer(sizerLeft, _T("&Vertical"));
     m_chkTicks = CreateCheckBoxAndAddToSizer(sizerLeft, _T("Show &ticks"));
     m_chkLabels = CreateCheckBoxAndAddToSizer(sizerLeft, _T("Show &labels"));
-    m_chkOtherSide = CreateCheckBoxAndAddToSizer
-                     (
-                        sizerLeft,
-                        _T("On &other side"),
-                        SliderPage_OtherSide
-                     );
+    static const wxString sides[] =
+    {
+        _T("top"),
+        _T("bottom"),
+        _T("left"),
+        _T("right"),
+    };
+    m_radioSides = new wxRadioBox(this, SliderPage_RadioSides, _T("&Ticks/Labels"),
+                                 wxDefaultPosition, wxDefaultSize,
+                                 WXSIZEOF(sides), sides,
+                                 1, wxRA_SPECIFY_COLS);
+    sizerLeft->Add(m_radioSides, 0, wxGROW | wxALL, 5);
+    m_chkBothSides = CreateCheckBoxAndAddToSizer
+                     (sizerLeft, _T("&Both sides"), SliderPage_BothSides);
+#if wxUSE_TOOLTIPS
+    m_chkBothSides->SetToolTip( _T("\"Both sides\" is only supported \nin Win95 and Universal") );
+#endif // wxUSE_TOOLTIPS
 
     sizerLeft->Add(5, 5, 0, wxGROW | wxALL, 5); // spacer
 
@@ -231,8 +273,8 @@ SliderWidgetsPage::SliderWidgetsPage(wxNotebook *notebook,
     m_textMax = new wxTextCtrl(this, SliderPage_MaxText, _T(""));
     sizerRow->Add(m_textMax, 1, wxLEFT | wxALIGN_CENTRE_VERTICAL, 5);
 
-    m_textMin->SetValue(wxString::Format(_T("%lu"), m_min));
-    m_textMax->SetValue(wxString::Format(_T("%lu"), m_max));
+    m_textMin->SetValue( wxString::Format(_T("%d"), m_min) );
+    m_textMax->SetValue( wxString::Format(_T("%d"), m_max) );
 
     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 
@@ -245,9 +287,16 @@ SliderWidgetsPage::SliderWidgetsPage(wxNotebook *notebook,
 
     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 
+    sizerRow = CreateSizerWithTextAndButton(SliderPage_SetThumbLen,
+                                            _T("Thumb &lenght"),
+                                            SliderPage_ThumbLenText,
+                                            &m_textThumbLen);
+
+    sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
+
     // right pane
     wxSizer *sizerRight = new wxBoxSizer(wxHORIZONTAL);
-    sizerRight->SetMinSize(150, 0);
+    sizerRight->SetMinSize(150, 40);
     m_sizerSlider = sizerRight; // save it to modify it later
 
     Reset();
@@ -275,10 +324,12 @@ SliderWidgetsPage::~SliderWidgetsPage()
 
 void SliderWidgetsPage::Reset()
 {
-    m_chkLabels->SetValue(TRUE);
-    m_chkTicks->SetValue(FALSE);
     m_chkVert->SetValue(FALSE);
-    m_chkOtherSide->SetValue(FALSE);
+    m_chkTicks->SetValue(TRUE);
+    m_chkLabels->SetValue(TRUE);
+    m_chkBothSides->SetValue(FALSE);
+
+    m_radioSides->SetSelection(StaticSides_Top);
 }
 
 void SliderWidgetsPage::CreateSlider()
@@ -294,11 +345,6 @@ void SliderWidgetsPage::CreateSlider()
     if ( m_chkLabels->GetValue() )
     {
         flags |= wxSL_LABELS;
-
-        if ( m_chkOtherSide->GetValue() )
-            flags |= isVert ? wxSL_RIGHT : wxSL_BOTTOM;
-        else
-            flags |= isVert ? wxSL_LEFT : wxSL_TOP;
     }
 
     if ( m_chkTicks->GetValue() )
@@ -306,6 +352,30 @@ void SliderWidgetsPage::CreateSlider()
         flags |= wxSL_AUTOTICKS;
     }
 
+    switch ( m_radioSides->GetSelection() )
+    {
+        case StaticSides_Top:
+            flags |= wxSL_TOP;
+            break;
+        case StaticSides_Left:
+            flags |= wxSL_LEFT;
+            break;
+        case StaticSides_Bottom:
+            flags |= wxSL_BOTTOM;
+            break;
+        case StaticSides_Right:
+            flags |= wxSL_RIGHT;
+            break;
+        default:
+            wxFAIL_MSG(_T("unexpected radiobox selection"));
+            // fall through
+    }
+
+    if ( m_chkBothSides->GetValue() )
+    {
+        flags |= wxSL_BOTH;
+    }
+
     int val = m_min;
     if ( m_slider )
     {
@@ -315,13 +385,13 @@ void SliderWidgetsPage::CreateSlider()
             val = valOld;
         }
 
-        m_sizerSlider->Remove(m_slider);
+        m_sizerSlider->Detach( m_slider );
 
         if ( m_sizerSlider->GetChildren().GetCount() )
         {
             // we have 2 spacers, remove them too
-            m_sizerSlider->Remove((int)0);
-            m_sizerSlider->Remove((int)0);
+            m_sizerSlider->Remove( 0 );
+            m_sizerSlider->Remove( 0 );
         }
 
         delete m_slider;
@@ -364,6 +434,19 @@ void SliderWidgetsPage::DoSetTickFreq()
     m_slider->SetTickFreq(freq, 0 /* unused */);
 }
 
+void SliderWidgetsPage::DoSetThumbLen()
+{
+    long len;
+    if ( !m_textThumbLen->GetValue().ToLong(&len) )
+    {
+        wxLogWarning(_T("Invalid slider thumb lenght"));
+
+        return;
+    }
+
+    m_slider->SetThumbLength(len);
+}
+
 // ----------------------------------------------------------------------------
 // event handlers
 // ----------------------------------------------------------------------------
@@ -380,6 +463,11 @@ void SliderWidgetsPage::OnButtonSetTickFreq(wxCommandEvent& WXUNUSED(event))
     DoSetTickFreq();
 }
 
+void SliderWidgetsPage::OnButtonSetThumbLen(wxCommandEvent& WXUNUSED(event))
+{
+    DoSetThumbLen();
+}
+
 void SliderWidgetsPage::OnButtonSetMinAndMax(wxCommandEvent& WXUNUSED(event))
 {
     long minNew,
@@ -426,6 +514,12 @@ void SliderWidgetsPage::OnUpdateUITickFreq(wxUpdateUIEvent& event)
                   (freq > 0) && (freq <= m_max - m_min) );
 }
 
+void SliderWidgetsPage::OnUpdateUIThumbLen(wxUpdateUIEvent& event)
+{
+    long val;
+    event.Enable( m_textThumbLen->GetValue().ToLong(&val));
+}
+
 void SliderWidgetsPage::OnUpdateUIMinMaxButton(wxUpdateUIEvent& event)
 {
     long mn, mx;
@@ -437,9 +531,9 @@ void SliderWidgetsPage::OnUpdateUIMinMaxButton(wxUpdateUIEvent& event)
 void SliderWidgetsPage::OnUpdateUIResetButton(wxUpdateUIEvent& event)
 {
     event.Enable( m_chkVert->GetValue() ||
+                  !m_chkTicks->GetValue() ||
                   !m_chkLabels->GetValue() ||
-                  m_chkOtherSide->GetValue() ||
-                  m_chkTicks->GetValue() );
+                  m_chkBothSides->GetValue() );
 }
 
 void SliderWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& event)
@@ -449,19 +543,26 @@ void SliderWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& event)
 
 void SliderWidgetsPage::OnUpdateUICurValueText(wxUpdateUIEvent& event)
 {
-    event.SetText( wxString::Format(_T("%d"), m_slider->GetValue()));
+    event.SetText( wxString::Format(_T("%d"), m_slider->GetValue()) );
 }
 
-void SliderWidgetsPage::OnUpdateUIOtherSide(wxUpdateUIEvent& event)
+void SliderWidgetsPage::OnUpdateUIRadioSides(wxUpdateUIEvent& event)
 {
-    event.Enable( m_chkLabels->GetValue() );
+    event.Enable( m_chkLabels->GetValue() || m_chkTicks->GetValue() );
 }
 
-void SliderWidgetsPage::OnSlider(wxScrollEvent& event)
+void SliderWidgetsPage::OnUpdateUIBothSides(wxUpdateUIEvent& event)
 {
-    int value = event.GetInt();
+#if defined(__WIN95__) || defined(__WXUNIVERSAL__)
+    event.Enable( m_chkTicks->GetValue() );
+#else
+    event.Enable( FALSE );
+#endif // defined(__WIN95__) || defined(__WXUNIVERSAL__)
+}
 
-    wxASSERT_MSG( value == m_slider->GetValue(),
+void SliderWidgetsPage::OnSlider(wxScrollEvent& event)
+{
+    wxASSERT_MSG( event.GetInt() == m_slider->GetValue(),
                   wxT("slider value should be the same") );
 
     wxEventType eventType = event.GetEventType();
@@ -490,15 +591,17 @@ void SliderWidgetsPage::OnSlider(wxScrollEvent& event)
         If this assert is triggered, there is an unknown slider event which
         should be added to the above eventNames array.
     */
-    wxASSERT_MSG(index >= 0 && index < WXSIZEOF(eventNames),
+    wxASSERT_MSG(index >= 0 && (size_t)index < WXSIZEOF(eventNames),
                  wxT("Unknown slider event") );
 
 
     static int s_numSliderEvents = 0;
 
     wxLogMessage(wxT("Slider event #%d: %s (pos = %d)"),
-                 numSliderEvents++,
+                 s_numSliderEvents++,
                  eventNames[index],
                  event.GetPosition());
 }
 
+#endif
+    // wxUSE_SLIDER