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Demonstrate wxSlider::SetSelection() in widgets sample

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This commit is contained in:
Maarten Bent
2019-01-31 20:36:25 +01:00
parent 53af5cb251
commit 4aeb941c4c
1 changed files with 102 additions and 2 deletions
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104
samples/widgets/slider.cpp
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@@ -59,6 +59,7 @@ enum
SliderPage_Clear,
SliderPage_SetValue,
SliderPage_SetMinAndMax,
SliderPage_SetRange,
SliderPage_SetLineSize,
SliderPage_SetPageSize,
SliderPage_SetTickFreq,
@@ -67,12 +68,15 @@ enum
SliderPage_ValueText,
SliderPage_MinText,
SliderPage_MaxText,
SliderPage_RangeMinText,
SliderPage_RangeMaxText,
SliderPage_LineSizeText,
SliderPage_PageSizeText,
SliderPage_TickFreqText,
SliderPage_ThumbLenText,
SliderPage_RadioSides,
SliderPage_BothSides,
SliderPage_SelectRange,
SliderPage_Slider
};
@@ -107,6 +111,7 @@ protected:
void OnButtonClear(wxCommandEvent& event);
void OnButtonSetValue(wxCommandEvent& event);
void OnButtonSetMinAndMax(wxCommandEvent& event);
void OnButtonSetRange(wxCommandEvent& event);
void OnButtonSetLineSize(wxCommandEvent& event);
void OnButtonSetPageSize(wxCommandEvent& event);
void OnButtonSetTickFreq(wxCommandEvent& event);
@@ -118,12 +123,14 @@ protected:
void OnUpdateUIValueButton(wxUpdateUIEvent& event);
void OnUpdateUIMinMaxButton(wxUpdateUIEvent& event);
void OnUpdateUIRangeButton(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 OnUpdateUISelectRange(wxUpdateUIEvent& event);
void OnUpdateUIResetButton(wxUpdateUIEvent& event);
@@ -147,6 +154,9 @@ protected:
// set the thumb len from the text field value
void DoSetThumbLen();
// set the selection range from the text field values
void DoSetSelectionRange();
// is this slider value in range?
bool IsValidValue(int val) const
{ return (val >= m_min) && (val <= m_max); }
@@ -154,6 +164,9 @@ protected:
// the slider range
int m_min, m_max;
// the slider selection range
int m_rangeMin, m_rangeMax;
// the controls
// ------------
@@ -162,7 +175,8 @@ protected:
*m_chkValueLabel,
*m_chkInverse,
*m_chkTicks,
*m_chkBothSides;
*m_chkBothSides,
*m_chkSelectRange;
wxRadioBox *m_radioSides;
@@ -174,6 +188,8 @@ protected:
wxTextCtrl *m_textValue,
*m_textMin,
*m_textMax,
*m_textRangeMin,
*m_textRangeMax,
*m_textLineSize,
*m_textPageSize,
*m_textTickFreq,
@@ -192,6 +208,7 @@ 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_SetRange, SliderWidgetsPage::OnButtonSetRange)
EVT_BUTTON(SliderPage_SetLineSize, SliderWidgetsPage::OnButtonSetLineSize)
EVT_BUTTON(SliderPage_SetPageSize, SliderWidgetsPage::OnButtonSetPageSize)
EVT_BUTTON(SliderPage_SetTickFreq, SliderWidgetsPage::OnButtonSetTickFreq)
@@ -199,12 +216,14 @@ wxBEGIN_EVENT_TABLE(SliderWidgetsPage, WidgetsPage)
EVT_UPDATE_UI(SliderPage_SetValue, SliderWidgetsPage::OnUpdateUIValueButton)
EVT_UPDATE_UI(SliderPage_SetMinAndMax, SliderWidgetsPage::OnUpdateUIMinMaxButton)
EVT_UPDATE_UI(SliderPage_SetRange, SliderWidgetsPage::OnUpdateUIRangeButton)
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_SelectRange, SliderWidgetsPage::OnUpdateUISelectRange)
EVT_UPDATE_UI(SliderPage_Reset, SliderWidgetsPage::OnUpdateUIResetButton)
@@ -235,12 +254,15 @@ SliderWidgetsPage::SliderWidgetsPage(WidgetsBookCtrl *book,
// init everything
m_min = 0;
m_max = 100;
m_rangeMin = 20;
m_rangeMax = 80;
m_chkInverse =
m_chkTicks =
m_chkMinMaxLabels =
m_chkValueLabel =
m_chkBothSides = (wxCheckBox *)NULL;
m_chkBothSides =
m_chkSelectRange =(wxCheckBox *)NULL;
m_radioSides = (wxRadioBox *)NULL;
@@ -275,8 +297,11 @@ void SliderWidgetsPage::CreateContent()
sizerLeft->Add(m_radioSides, wxSizerFlags().Expand().Border());
m_chkBothSides = CreateCheckBoxAndAddToSizer
(sizerLeft, "&Both sides", SliderPage_BothSides);
m_chkSelectRange = CreateCheckBoxAndAddToSizer
(sizerLeft, "&Selection range", SliderPage_SelectRange);
#if wxUSE_TOOLTIPS
m_chkBothSides->SetToolTip("\"Both sides\" is only supported \nin Universal");
m_chkSelectRange->SetToolTip("\"Select range\" is only supported \nin wxMSW");
#endif // wxUSE_TOOLTIPS
sizerLeft->AddSpacer(5);
@@ -315,6 +340,19 @@ void SliderWidgetsPage::CreateContent()
sizerMiddle->Add(sizerRow, wxSizerFlags().Expand().Border());
sizerRow = CreateSizerWithTextAndButton(SliderPage_SetRange,
"&Selection",
SliderPage_RangeMinText,
&m_textRangeMin);
m_textRangeMax = new wxTextCtrl(this, SliderPage_RangeMaxText, wxEmptyString);
sizerRow->Add(m_textRangeMax, wxSizerFlags(1).CentreVertical().Border(wxLEFT));
m_textRangeMin->SetValue( wxString::Format("%d", m_rangeMin) );
m_textRangeMax->SetValue( wxString::Format("%d", m_rangeMax) );
sizerMiddle->Add(sizerRow, wxSizerFlags().Expand().Border());
sizerRow = CreateSizerWithTextAndButton(SliderPage_SetLineSize,
"Li&ne size",
SliderPage_LineSizeText,
@@ -375,6 +413,7 @@ void SliderWidgetsPage::Reset()
m_chkValueLabel->SetValue(true);
m_chkMinMaxLabels->SetValue(true);
m_chkBothSides->SetValue(false);
m_chkSelectRange->SetValue(false);
m_radioSides->SetSelection(SliderTicks_None);
}
@@ -437,6 +476,11 @@ void SliderWidgetsPage::CreateSlider()
flags |= wxSL_BOTH;
}
if ( m_chkSelectRange->GetValue() )
{
flags |= wxSL_SELRANGE;
}
int val = m_min;
if ( m_slider )
{
@@ -483,6 +527,11 @@ void SliderWidgetsPage::CreateSlider()
DoSetTickFreq();
}
if ( m_chkSelectRange->GetValue() )
{
DoSetSelectionRange();
}
Layout();
}
@@ -556,6 +605,31 @@ void SliderWidgetsPage::DoSetThumbLen()
Layout();
}
void SliderWidgetsPage::DoSetSelectionRange()
{
long minNew,
maxNew = 0; // init to suppress compiler warning
if ( !m_textRangeMin->GetValue().ToLong(&minNew) ||
!m_textRangeMax->GetValue().ToLong(&maxNew) ||
minNew >= maxNew || minNew < m_min || maxNew > m_max )
{
wxLogWarning("Invalid selection range for the slider.");
return;
}
m_rangeMin = minNew;
m_rangeMax = maxNew;
m_slider->SetSelection(m_rangeMin, m_rangeMax);
if ( m_slider->GetSelStart() != m_rangeMin ||
m_slider->GetSelEnd() != m_rangeMax )
{
wxLogWarning("Invalid selection range in slider.");
}
}
// ----------------------------------------------------------------------------
// event handlers
// ----------------------------------------------------------------------------
@@ -612,6 +686,11 @@ void SliderWidgetsPage::OnButtonSetMinAndMax(wxCommandEvent& WXUNUSED(event))
}
}
void SliderWidgetsPage::OnButtonSetRange(wxCommandEvent& WXUNUSED(event))
{
DoSetSelectionRange();
}
void SliderWidgetsPage::OnButtonSetValue(wxCommandEvent& WXUNUSED(event))
{
long val;
@@ -667,6 +746,17 @@ void SliderWidgetsPage::OnUpdateUIMinMaxButton(wxUpdateUIEvent& event)
mn < mx);
}
void SliderWidgetsPage::OnUpdateUIRangeButton(wxUpdateUIEvent& event)
{
long mn, mx;
event.Enable( m_chkSelectRange->GetValue() &&
m_textRangeMin->GetValue().ToLong(&mn) &&
m_textRangeMax->GetValue().ToLong(&mx) &&
mn < mx &&
mn >= m_min && mx <= m_max );
}
void SliderWidgetsPage::OnUpdateUIResetButton(wxUpdateUIEvent& event)
{
event.Enable( m_chkInverse->GetValue() ||
@@ -674,6 +764,7 @@ void SliderWidgetsPage::OnUpdateUIResetButton(wxUpdateUIEvent& event)
!m_chkValueLabel->GetValue() ||
!m_chkMinMaxLabels->GetValue() ||
m_chkBothSides->GetValue() ||
m_chkSelectRange->GetValue() ||
m_radioSides->GetSelection() != SliderTicks_None );
}
@@ -701,6 +792,15 @@ void SliderWidgetsPage::OnUpdateUIBothSides(wxUpdateUIEvent& event)
#endif // defined(__WXMSW__) || defined(__WXUNIVERSAL__)
}
void SliderWidgetsPage::OnUpdateUISelectRange(wxUpdateUIEvent& event)
{
#if defined(__WXMSW__)
event.Enable( true );
#else
event.Enable( false );
#endif // defined(__WXMSW__)
}
void SliderWidgetsPage::OnSlider(wxScrollEvent& event)
{
wxASSERT_MSG( event.GetInt() == m_slider->GetValue(),