///////////////////////////////////////////////////////////////////////////// // Program: wxWidgets Widgets Sample // Name: slider.cpp // Purpose: Part of the widgets sample showing wxSlider // Author: Vadim Zeitlin // Created: 16.04.01 // Copyright: (c) 2001 Vadim Zeitlin // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// // ============================================================================ // declarations // ============================================================================ // ---------------------------------------------------------------------------- // headers // ---------------------------------------------------------------------------- // for compilers that support precompilation, includes "wx/wx.h". #include "wx/wxprec.h" #ifdef __BORLANDC__ #pragma hdrstop #endif #if wxUSE_SLIDER // for all others, include the necessary headers #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/slider.h" #include "wx/statbox.h" #include "wx/textctrl.h" #endif #if wxUSE_TOOLTIPS #include "wx/tooltip.h" #endif #include "wx/sizer.h" #include "widgets.h" #include "icons/slider.xpm" // ---------------------------------------------------------------------------- // constants // ---------------------------------------------------------------------------- // control ids enum { SliderPage_Reset = wxID_HIGHEST, SliderPage_Clear, SliderPage_SetValue, SliderPage_SetMinAndMax, SliderPage_SetLineSize, SliderPage_SetPageSize, SliderPage_SetTickFreq, SliderPage_SetThumbLen, SliderPage_CurValueText, SliderPage_ValueText, SliderPage_MinText, SliderPage_MaxText, SliderPage_LineSizeText, SliderPage_PageSizeText, SliderPage_TickFreqText, SliderPage_ThumbLenText, SliderPage_RadioSides, SliderPage_BothSides, SliderPage_Slider }; // sides radiobox values enum { SliderTicks_None, SliderTicks_Top, SliderTicks_Bottom, SliderTicks_Left, SliderTicks_Right }; // ---------------------------------------------------------------------------- // SliderWidgetsPage // ---------------------------------------------------------------------------- class SliderWidgetsPage : public WidgetsPage { public: SliderWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist); virtual ~SliderWidgetsPage(){}; virtual wxWindow *GetWidget() const wxOVERRIDE { return m_slider; } virtual void RecreateWidget() wxOVERRIDE { CreateSlider(); } // lazy creation of the content virtual void CreateContent() wxOVERRIDE; protected: // event handlers void OnButtonReset(wxCommandEvent& event); void OnButtonClear(wxCommandEvent& event); void OnButtonSetValue(wxCommandEvent& event); void OnButtonSetMinAndMax(wxCommandEvent& event); void OnButtonSetLineSize(wxCommandEvent& event); void OnButtonSetPageSize(wxCommandEvent& event); void OnButtonSetTickFreq(wxCommandEvent& event); void OnButtonSetThumbLen(wxCommandEvent& event); void OnCheckOrRadioBox(wxCommandEvent& event); void OnSlider(wxScrollEvent& event); void OnUpdateUIValueButton(wxUpdateUIEvent& event); void OnUpdateUIMinMaxButton(wxUpdateUIEvent& event); void OnUpdateUILineSize(wxUpdateUIEvent& event); void OnUpdateUIPageSize(wxUpdateUIEvent& event); void OnUpdateUITickFreq(wxUpdateUIEvent& event); void OnUpdateUIThumbLen(wxUpdateUIEvent& event); void OnUpdateUIRadioSides(wxUpdateUIEvent& event); void OnUpdateUIBothSides(wxUpdateUIEvent& event); void OnUpdateUIResetButton(wxUpdateUIEvent& event); void OnUpdateUICurValueText(wxUpdateUIEvent& event); // reset the slider parameters void Reset(); // (re)create the slider void CreateSlider(); // set the line size from the text field value void DoSetLineSize(); // set the page size from the text field value void DoSetPageSize(); // 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); } // the slider range int m_min, m_max; // the controls // ------------ // the check/radio boxes for styles wxCheckBox *m_chkMinMaxLabels, *m_chkValueLabel, *m_chkInverse, *m_chkTicks, *m_chkBothSides; wxRadioBox *m_radioSides; // the slider itself and the sizer it is in wxSlider *m_slider; wxSizer *m_sizerSlider; // the text entries for set value/range wxTextCtrl *m_textValue, *m_textMin, *m_textMax, *m_textLineSize, *m_textPageSize, *m_textTickFreq, *m_textThumbLen; private: wxDECLARE_EVENT_TABLE(); DECLARE_WIDGETS_PAGE(SliderWidgetsPage) }; // ---------------------------------------------------------------------------- // event tables // ---------------------------------------------------------------------------- wxBEGIN_EVENT_TABLE(SliderWidgetsPage, WidgetsPage) EVT_BUTTON(SliderPage_Reset, SliderWidgetsPage::OnButtonReset) EVT_BUTTON(SliderPage_SetValue, SliderWidgetsPage::OnButtonSetValue) EVT_BUTTON(SliderPage_SetMinAndMax, SliderWidgetsPage::OnButtonSetMinAndMax) EVT_BUTTON(SliderPage_SetLineSize, SliderWidgetsPage::OnButtonSetLineSize) EVT_BUTTON(SliderPage_SetPageSize, SliderWidgetsPage::OnButtonSetPageSize) EVT_BUTTON(SliderPage_SetTickFreq, SliderWidgetsPage::OnButtonSetTickFreq) EVT_BUTTON(SliderPage_SetThumbLen, SliderWidgetsPage::OnButtonSetThumbLen) EVT_UPDATE_UI(SliderPage_SetValue, SliderWidgetsPage::OnUpdateUIValueButton) EVT_UPDATE_UI(SliderPage_SetMinAndMax, SliderWidgetsPage::OnUpdateUIMinMaxButton) EVT_UPDATE_UI(SliderPage_SetLineSize, SliderWidgetsPage::OnUpdateUILineSize) EVT_UPDATE_UI(SliderPage_SetPageSize, SliderWidgetsPage::OnUpdateUIPageSize) EVT_UPDATE_UI(SliderPage_SetTickFreq, SliderWidgetsPage::OnUpdateUITickFreq) EVT_UPDATE_UI(SliderPage_SetThumbLen, SliderWidgetsPage::OnUpdateUIThumbLen) EVT_UPDATE_UI(SliderPage_RadioSides, SliderWidgetsPage::OnUpdateUIRadioSides) EVT_UPDATE_UI(SliderPage_BothSides, SliderWidgetsPage::OnUpdateUIBothSides) EVT_UPDATE_UI(SliderPage_Reset, SliderWidgetsPage::OnUpdateUIResetButton) EVT_UPDATE_UI(SliderPage_CurValueText, SliderWidgetsPage::OnUpdateUICurValueText) EVT_COMMAND_SCROLL(SliderPage_Slider, SliderWidgetsPage::OnSlider) EVT_CHECKBOX(wxID_ANY, SliderWidgetsPage::OnCheckOrRadioBox) EVT_RADIOBOX(wxID_ANY, SliderWidgetsPage::OnCheckOrRadioBox) wxEND_EVENT_TABLE() // ============================================================================ // implementation // ============================================================================ #if defined(__WXUNIVERSAL__) #define FAMILY_CTRLS UNIVERSAL_CTRLS #else #define FAMILY_CTRLS NATIVE_CTRLS #endif IMPLEMENT_WIDGETS_PAGE(SliderWidgetsPage, wxT("Slider"), FAMILY_CTRLS ); SliderWidgetsPage::SliderWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist) : WidgetsPage(book, imaglist, slider_xpm) { // init everything m_min = 0; m_max = 100; m_chkInverse = m_chkTicks = m_chkMinMaxLabels = m_chkValueLabel = m_chkBothSides = (wxCheckBox *)NULL; m_radioSides = (wxRadioBox *)NULL; m_slider = (wxSlider *)NULL; m_sizerSlider = (wxSizer *)NULL; } void SliderWidgetsPage::CreateContent() { wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL); // left pane wxStaticBox *box = new wxStaticBox(this, wxID_ANY, wxT("&Set style")); wxSizer *sizerLeft = new wxStaticBoxSizer(box, wxVERTICAL); m_chkInverse = CreateCheckBoxAndAddToSizer(sizerLeft, wxT("&Inverse")); m_chkTicks = CreateCheckBoxAndAddToSizer(sizerLeft, wxT("Show &ticks")); m_chkMinMaxLabels = CreateCheckBoxAndAddToSizer(sizerLeft, wxT("Show min/max &labels")); m_chkValueLabel = CreateCheckBoxAndAddToSizer(sizerLeft, wxT("Show &value label")); static const wxString sides[] = { wxT("default"), wxT("top"), wxT("bottom"), wxT("left"), wxT("right"), }; m_radioSides = new wxRadioBox(this, SliderPage_RadioSides, wxT("&Label position"), wxDefaultPosition, wxDefaultSize, WXSIZEOF(sides), sides, 1, wxRA_SPECIFY_COLS); sizerLeft->Add(m_radioSides, 0, wxGROW | wxALL, 5); m_chkBothSides = CreateCheckBoxAndAddToSizer (sizerLeft, wxT("&Both sides"), SliderPage_BothSides); #if wxUSE_TOOLTIPS m_chkBothSides->SetToolTip( wxT("\"Both sides\" is only supported \nin Universal") ); #endif // wxUSE_TOOLTIPS sizerLeft->Add(5, 5, 0, wxGROW | wxALL, 5); // spacer wxButton *btn = new wxButton(this, SliderPage_Reset, wxT("&Reset")); sizerLeft->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 15); // middle pane wxStaticBox *box2 = new wxStaticBox(this, wxID_ANY, wxT("&Change slider value")); wxSizer *sizerMiddle = new wxStaticBoxSizer(box2, wxVERTICAL); wxTextCtrl *text; wxSizer *sizerRow = CreateSizerWithTextAndLabel(wxT("Current value"), SliderPage_CurValueText, &text); text->SetEditable(false); sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5); sizerRow = CreateSizerWithTextAndButton(SliderPage_SetValue, wxT("Set &value"), SliderPage_ValueText, &m_textValue); sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5); sizerRow = CreateSizerWithTextAndButton(SliderPage_SetMinAndMax, wxT("&Min and max"), SliderPage_MinText, &m_textMin); m_textMax = new wxTextCtrl(this, SliderPage_MaxText, wxEmptyString); sizerRow->Add(m_textMax, 1, wxLEFT | wxALIGN_CENTRE_VERTICAL, 5); m_textMin->SetValue( wxString::Format(wxT("%d"), m_min) ); m_textMax->SetValue( wxString::Format(wxT("%d"), m_max) ); sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5); sizerRow = CreateSizerWithTextAndButton(SliderPage_SetLineSize, wxT("Li&ne size"), SliderPage_LineSizeText, &m_textLineSize); sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5); sizerRow = CreateSizerWithTextAndButton(SliderPage_SetPageSize, wxT("P&age size"), SliderPage_PageSizeText, &m_textPageSize); sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5); sizerRow = CreateSizerWithTextAndButton(SliderPage_SetTickFreq, wxT("Tick &frequency"), SliderPage_TickFreqText, &m_textTickFreq); m_textTickFreq->SetValue(wxT("10")); sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5); sizerRow = CreateSizerWithTextAndButton(SliderPage_SetThumbLen, wxT("Thumb &length"), SliderPage_ThumbLenText, &m_textThumbLen); sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5); // right pane wxSizer *sizerRight = new wxBoxSizer(wxHORIZONTAL); sizerRight->SetMinSize(150, 40); m_sizerSlider = sizerRight; // save it to modify it later Reset(); CreateSlider(); m_textLineSize->SetValue(wxString::Format(wxT("%d"), m_slider->GetLineSize())); m_textPageSize->SetValue(wxString::Format(wxT("%d"), m_slider->GetPageSize())); // the 3 panes panes compose the window sizerTop->Add(sizerLeft, 0, wxGROW | (wxALL & ~wxLEFT), 10); sizerTop->Add(sizerMiddle, 0, wxGROW | wxALL, 10); sizerTop->Add(sizerRight, 1, wxGROW | (wxALL & ~wxRIGHT), 10); // final initializations SetSizer(sizerTop); } // ---------------------------------------------------------------------------- // operations // ---------------------------------------------------------------------------- void SliderWidgetsPage::Reset() { m_chkInverse->SetValue(false); m_chkTicks->SetValue(true); m_chkValueLabel->SetValue(true); m_chkMinMaxLabels->SetValue(true); m_chkBothSides->SetValue(false); m_radioSides->SetSelection(SliderTicks_None); } void SliderWidgetsPage::CreateSlider() { int flags = GetAttrs().m_defaultFlags; if ( m_chkInverse->GetValue() ) { flags |= wxSL_INVERSE; } if ( m_chkMinMaxLabels->GetValue() ) { flags |= wxSL_MIN_MAX_LABELS; } if ( m_chkValueLabel->GetValue() ) { flags |= wxSL_VALUE_LABEL; } if ( m_chkTicks->GetValue() ) { flags |= wxSL_AUTOTICKS; } // notice that the style names refer to the _ticks_ positions while we want // to allow the user to select the label(s) positions and the labels are on // the opposite side from the ticks, hence the apparent reversal below switch ( m_radioSides->GetSelection() ) { case SliderTicks_None: break; case SliderTicks_Top: flags |= wxSL_BOTTOM; break; case SliderTicks_Left: flags |= wxSL_RIGHT | wxSL_VERTICAL; break; case SliderTicks_Bottom: flags |= wxSL_TOP; break; case SliderTicks_Right: flags |= wxSL_LEFT | wxSL_VERTICAL; break; default: wxFAIL_MSG(wxT("unexpected radiobox selection")); // fall through } if ( m_chkBothSides->GetValue() ) { flags |= wxSL_BOTH; } int val = m_min; if ( m_slider ) { int valOld = m_slider->GetValue(); if ( !IsValidValue(valOld) ) { val = valOld; } m_sizerSlider->Detach( m_slider ); if ( m_sizerSlider->GetChildren().GetCount() ) { // we have 2 spacers, remove them too m_sizerSlider->Remove( 0 ); m_sizerSlider->Remove( 0 ); } delete m_slider; } m_slider = new wxSlider(this, SliderPage_Slider, val, m_min, m_max, wxDefaultPosition, wxDefaultSize, flags); if ( m_slider->HasFlag(wxSL_VERTICAL) ) { m_sizerSlider->Add(0, 0, 1); m_sizerSlider->Add(m_slider, 0, wxGROW | wxALL, 5); m_sizerSlider->Add(0, 0, 1); } else { m_sizerSlider->Add(m_slider, 1, wxCENTRE | wxALL, 5); } if ( m_chkTicks->GetValue() ) { DoSetTickFreq(); } m_sizerSlider->Layout(); } void SliderWidgetsPage::DoSetLineSize() { long lineSize; if ( !m_textLineSize->GetValue().ToLong(&lineSize) ) { wxLogWarning(wxT("Invalid slider line size")); return; } m_slider->SetLineSize(lineSize); if ( m_slider->GetLineSize() != lineSize ) { wxLogWarning(wxT("Invalid line size in slider.")); } } void SliderWidgetsPage::DoSetPageSize() { long pageSize; if ( !m_textPageSize->GetValue().ToLong(&pageSize) ) { wxLogWarning(wxT("Invalid slider page size")); return; } m_slider->SetPageSize(pageSize); if ( m_slider->GetPageSize() != pageSize ) { wxLogWarning(wxT("Invalid page size in slider.")); } } void SliderWidgetsPage::DoSetTickFreq() { long freq; if ( !m_textTickFreq->GetValue().ToLong(&freq) ) { wxLogWarning(wxT("Invalid slider tick frequency")); return; } m_slider->SetTickFreq(freq); } void SliderWidgetsPage::DoSetThumbLen() { long len; if ( !m_textThumbLen->GetValue().ToLong(&len) ) { wxLogWarning(wxT("Invalid slider thumb length")); return; } m_slider->SetThumbLength(len); } // ---------------------------------------------------------------------------- // event handlers // ---------------------------------------------------------------------------- void SliderWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event)) { Reset(); CreateSlider(); } void SliderWidgetsPage::OnButtonSetLineSize(wxCommandEvent& WXUNUSED(event)) { DoSetLineSize(); } void SliderWidgetsPage::OnButtonSetPageSize(wxCommandEvent& WXUNUSED(event)) { DoSetPageSize(); } void SliderWidgetsPage::OnButtonSetTickFreq(wxCommandEvent& WXUNUSED(event)) { DoSetTickFreq(); } void SliderWidgetsPage::OnButtonSetThumbLen(wxCommandEvent& WXUNUSED(event)) { DoSetThumbLen(); } void SliderWidgetsPage::OnButtonSetMinAndMax(wxCommandEvent& WXUNUSED(event)) { long minNew, maxNew = 0; // init to suppress compiler warning if ( !m_textMin->GetValue().ToLong(&minNew) || !m_textMax->GetValue().ToLong(&maxNew) || minNew >= maxNew ) { wxLogWarning(wxT("Invalid min/max values for the slider.")); return; } m_min = minNew; m_max = maxNew; m_slider->SetRange(minNew, maxNew); if ( m_slider->GetMin() != m_min || m_slider->GetMax() != m_max ) { wxLogWarning(wxT("Invalid range in slider.")); } } void SliderWidgetsPage::OnButtonSetValue(wxCommandEvent& WXUNUSED(event)) { long val; if ( !m_textValue->GetValue().ToLong(&val) || !IsValidValue(val) ) { wxLogWarning(wxT("Invalid slider value.")); return; } m_slider->SetValue(val); } void SliderWidgetsPage::OnUpdateUIValueButton(wxUpdateUIEvent& event) { long val; event.Enable( m_textValue->GetValue().ToLong(&val) && IsValidValue(val) ); } void SliderWidgetsPage::OnUpdateUILineSize(wxUpdateUIEvent& event) { long lineSize; event.Enable( m_textLineSize->GetValue().ToLong(&lineSize) && (lineSize > 0) && (lineSize <= m_max - m_min) ); } void SliderWidgetsPage::OnUpdateUIPageSize(wxUpdateUIEvent& event) { long pageSize; event.Enable( m_textPageSize->GetValue().ToLong(&pageSize) && (pageSize > 0) && (pageSize <= m_max - m_min) ); } void SliderWidgetsPage::OnUpdateUITickFreq(wxUpdateUIEvent& event) { long freq; event.Enable( m_chkTicks->GetValue() && m_textTickFreq->GetValue().ToLong(&freq) && (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; event.Enable( m_textMin->GetValue().ToLong(&mn) && m_textMax->GetValue().ToLong(&mx) && mn < mx); } void SliderWidgetsPage::OnUpdateUIResetButton(wxUpdateUIEvent& event) { event.Enable( m_chkInverse->GetValue() || !m_chkTicks->GetValue() || !m_chkValueLabel->GetValue() || !m_chkMinMaxLabels->GetValue() || m_chkBothSides->GetValue() || m_radioSides->GetSelection() != SliderTicks_None ); } void SliderWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& WXUNUSED(event)) { CreateSlider(); } void SliderWidgetsPage::OnUpdateUICurValueText(wxUpdateUIEvent& event) { event.SetText( wxString::Format(wxT("%d"), m_slider->GetValue()) ); } void SliderWidgetsPage::OnUpdateUIRadioSides(wxUpdateUIEvent& event) { event.Enable( m_chkValueLabel->GetValue() || m_chkTicks->GetValue() ); } void SliderWidgetsPage::OnUpdateUIBothSides(wxUpdateUIEvent& event) { #if defined(__WXMSW__) || defined(__WXUNIVERSAL__) event.Enable( m_chkTicks->GetValue() ); #else event.Enable( false ); #endif // defined(__WXMSW__) || defined(__WXUNIVERSAL__) } void SliderWidgetsPage::OnSlider(wxScrollEvent& event) { wxASSERT_MSG( event.GetInt() == m_slider->GetValue(), wxT("slider value should be the same") ); wxEventType eventType = event.GetEventType(); /* This array takes the EXACT order of the declarations in include/wx/event.h (section "wxScrollBar and wxSlider event identifiers") */ static const wxChar *eventNames[] = { wxT("wxEVT_SCROLL_TOP"), wxT("wxEVT_SCROLL_BOTTOM"), wxT("wxEVT_SCROLL_LINEUP"), wxT("wxEVT_SCROLL_LINEDOWN"), wxT("wxEVT_SCROLL_PAGEUP"), wxT("wxEVT_SCROLL_PAGEDOWN"), wxT("wxEVT_SCROLL_THUMBTRACK"), wxT("wxEVT_SCROLL_THUMBRELEASE"), wxT("wxEVT_SCROLL_CHANGED") }; int index = eventType - wxEVT_SCROLL_TOP; /* If this assert is triggered, there is an unknown slider event which should be added to the above eventNames array. */ 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, int value = %d)"), s_numSliderEvents++, eventNames[index], event.GetPosition(), event.GetInt()); } #endif // wxUSE_SLIDER