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wxWidgets/samples/widgets/gauge.cpp
Vadim Zeitlin 5662e86b61 Improve widgets sample UI consistency. 
Ensure that the various attributes (colours, font, border, ...) are preserved
when a widget is recreated or the current page is changed. This is more
convenient and also avoids discrepancies between the state of the menu items
and the actual state of the widget.

Closes #16576.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@78332 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2015-01-02 14:26:53 +00:00

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/////////////////////////////////////////////////////////////////////////////
// Program: wxWidgets Widgets Sample
// Name: gauge.cpp
// Purpose: Part of the widgets sample showing wxGauge
// Author: Vadim Zeitlin
// Created: 27.03.01
// 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
// for all others, include the necessary headers
#ifndef WX_PRECOMP
#include "wx/log.h"
#include "wx/timer.h"
#include "wx/bitmap.h"
#include "wx/button.h"
#include "wx/checkbox.h"
#include "wx/combobox.h"
#include "wx/gauge.h"
#include "wx/radiobox.h"
#include "wx/statbox.h"
#include "wx/textctrl.h"
#endif
#include "wx/sizer.h"
#include "widgets.h"
#if wxUSE_GAUGE
#include "icons/gauge.xpm"
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
// control ids
enum
{
GaugePage_Reset = wxID_HIGHEST,
GaugePage_Progress,
GaugePage_IndeterminateProgress,
GaugePage_Clear,
GaugePage_SetValue,
GaugePage_SetRange,
GaugePage_CurValueText,
GaugePage_ValueText,
GaugePage_RangeText,
GaugePage_Timer,
GaugePage_IndeterminateTimer,
GaugePage_Gauge
};
// ----------------------------------------------------------------------------
// GaugeWidgetsPage
// ----------------------------------------------------------------------------
class GaugeWidgetsPage : public WidgetsPage
{
public:
GaugeWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist);
virtual ~GaugeWidgetsPage();
virtual wxControl *GetWidget() const wxOVERRIDE { return m_gauge; }
virtual void RecreateWidget() wxOVERRIDE { CreateGauge(); }
// lazy creation of the content
virtual void CreateContent() wxOVERRIDE;
protected:
// event handlers
void OnButtonReset(wxCommandEvent& event);
void OnButtonProgress(wxCommandEvent& event);
void OnButtonIndeterminateProgress(wxCommandEvent& event);
void OnButtonClear(wxCommandEvent& event);
void OnButtonSetValue(wxCommandEvent& event);
void OnButtonSetRange(wxCommandEvent& event);
void OnCheckOrRadioBox(wxCommandEvent& event);
void OnUpdateUIValueButton(wxUpdateUIEvent& event);
void OnUpdateUIRangeButton(wxUpdateUIEvent& event);
void OnUpdateUIResetButton(wxUpdateUIEvent& event);
void OnUpdateUICurValueText(wxUpdateUIEvent& event);
void OnProgressTimer(wxTimerEvent& event);
void OnIndeterminateProgressTimer(wxTimerEvent& event);
// reset the gauge parameters
void Reset();
// (re)create the gauge
void CreateGauge();
// start progress timer
void StartTimer(wxButton*);
// stop the progress timer
void StopTimer(wxButton*);
// the gauge range
unsigned long m_range;
// the controls
// ------------
// the checkboxes for styles
wxCheckBox *m_chkVert,
*m_chkSmooth,
*m_chkProgress;
// the gauge itself and the sizer it is in
wxGauge *m_gauge;
wxSizer *m_sizerGauge;
// the text entries for set value/range
wxTextCtrl *m_textValue,
*m_textRange;
// the timer for simulating gauge progress
wxTimer *m_timer;
private:
wxDECLARE_EVENT_TABLE();
DECLARE_WIDGETS_PAGE(GaugeWidgetsPage)
};
// ----------------------------------------------------------------------------
// event tables
// ----------------------------------------------------------------------------
wxBEGIN_EVENT_TABLE(GaugeWidgetsPage, WidgetsPage)
EVT_BUTTON(GaugePage_Reset, GaugeWidgetsPage::OnButtonReset)
EVT_BUTTON(GaugePage_Progress, GaugeWidgetsPage::OnButtonProgress)
EVT_BUTTON(GaugePage_IndeterminateProgress, GaugeWidgetsPage::OnButtonIndeterminateProgress)
EVT_BUTTON(GaugePage_Clear, GaugeWidgetsPage::OnButtonClear)
EVT_BUTTON(GaugePage_SetValue, GaugeWidgetsPage::OnButtonSetValue)
EVT_BUTTON(GaugePage_SetRange, GaugeWidgetsPage::OnButtonSetRange)
EVT_UPDATE_UI(GaugePage_SetValue, GaugeWidgetsPage::OnUpdateUIValueButton)
EVT_UPDATE_UI(GaugePage_SetRange, GaugeWidgetsPage::OnUpdateUIRangeButton)
EVT_UPDATE_UI(GaugePage_Reset, GaugeWidgetsPage::OnUpdateUIResetButton)
EVT_UPDATE_UI(GaugePage_CurValueText, GaugeWidgetsPage::OnUpdateUICurValueText)
EVT_CHECKBOX(wxID_ANY, GaugeWidgetsPage::OnCheckOrRadioBox)
EVT_RADIOBOX(wxID_ANY, GaugeWidgetsPage::OnCheckOrRadioBox)
EVT_TIMER(GaugePage_Timer, GaugeWidgetsPage::OnProgressTimer)
EVT_TIMER(GaugePage_IndeterminateTimer, GaugeWidgetsPage::OnIndeterminateProgressTimer)
wxEND_EVENT_TABLE()
// ============================================================================
// implementation
// ============================================================================
#if defined(__WXUNIVERSAL__)
#define FAMILY_CTRLS UNIVERSAL_CTRLS
#else
#define FAMILY_CTRLS NATIVE_CTRLS
#endif
IMPLEMENT_WIDGETS_PAGE(GaugeWidgetsPage, wxT("Gauge"), FAMILY_CTRLS );
GaugeWidgetsPage::GaugeWidgetsPage(WidgetsBookCtrl *book,
wxImageList *imaglist)
:WidgetsPage(book, imaglist, gauge_xpm)
{
// init everything
m_range = 100;
m_timer = (wxTimer *)NULL;
m_chkVert =
m_chkSmooth =
m_chkProgress = (wxCheckBox *)NULL;
m_gauge = (wxGauge *)NULL;
m_sizerGauge = (wxSizer *)NULL;
}
void GaugeWidgetsPage::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_chkVert = CreateCheckBoxAndAddToSizer(sizerLeft, wxT("&Vertical"));
m_chkSmooth = CreateCheckBoxAndAddToSizer(sizerLeft, wxT("&Smooth"));
m_chkProgress = CreateCheckBoxAndAddToSizer(sizerLeft, wxT("&Progress"));
sizerLeft->Add(5, 5, 0, wxGROW | wxALL, 5); // spacer
wxButton *btn = new wxButton(this, GaugePage_Reset, wxT("&Reset"));
sizerLeft->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 15);
// middle pane
wxStaticBox *box2 = new wxStaticBox(this, wxID_ANY, wxT("&Change gauge value"));
wxSizer *sizerMiddle = new wxStaticBoxSizer(box2, wxVERTICAL);
wxTextCtrl *text;
wxSizer *sizerRow = CreateSizerWithTextAndLabel(wxT("Current value"),
GaugePage_CurValueText,
&text);
text->SetEditable(false);
sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
sizerRow = CreateSizerWithTextAndButton(GaugePage_SetValue,
wxT("Set &value"),
GaugePage_ValueText,
&m_textValue);
sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
sizerRow = CreateSizerWithTextAndButton(GaugePage_SetRange,
wxT("Set &range"),
GaugePage_RangeText,
&m_textRange);
m_textRange->SetValue( wxString::Format(wxT("%lu"), m_range) );
sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
btn = new wxButton(this, GaugePage_Progress, wxT("Simulate &progress"));
sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
btn = new wxButton(this, GaugePage_IndeterminateProgress,
wxT("Simulate &indeterminate job"));
sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
btn = new wxButton(this, GaugePage_Clear, wxT("&Clear"));
sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
// right pane
wxSizer *sizerRight = new wxBoxSizer(wxHORIZONTAL);
m_gauge = new wxGauge(this, GaugePage_Gauge, m_range);
sizerRight->Add(m_gauge, 1, wxCENTRE | wxALL, 5);
sizerRight->SetMinSize(150, 0);
m_sizerGauge = sizerRight; // save it to modify it later
// the 3 panes panes compose the window
sizerTop->Add(sizerLeft, 0, wxGROW | (wxALL & ~wxLEFT), 10);
sizerTop->Add(sizerMiddle, 1, wxGROW | wxALL, 10);
sizerTop->Add(sizerRight, 1, wxGROW | (wxALL & ~wxRIGHT), 10);
// final initializations
Reset();
SetSizer(sizerTop);
}
GaugeWidgetsPage::~GaugeWidgetsPage()
{
delete m_timer;
}
// ----------------------------------------------------------------------------
// operations
// ----------------------------------------------------------------------------
void GaugeWidgetsPage::Reset()
{
m_chkVert->SetValue(false);
m_chkSmooth->SetValue(false);
m_chkProgress->SetValue(false);
}
void GaugeWidgetsPage::CreateGauge()
{
int flags = GetAttrs().m_defaultFlags;
if ( m_chkVert->GetValue() )
flags |= wxGA_VERTICAL;
else
flags |= wxGA_HORIZONTAL;
if ( m_chkSmooth->GetValue() )
flags |= wxGA_SMOOTH;
#if wxUSE_TASKBARBUTTON
if ( m_chkProgress->GetValue() )
flags |= wxGA_PROGRESS;
#endif
int val = 0;
if ( m_gauge )
{
val = m_gauge->GetValue();
m_sizerGauge->Detach( m_gauge );
delete m_gauge;
}
m_gauge = new wxGauge(this, GaugePage_Gauge, m_range,
wxDefaultPosition, wxDefaultSize,
flags);
m_gauge->SetValue(val);
if ( flags & wxGA_VERTICAL )
m_sizerGauge->Add(m_gauge, 0, wxGROW | wxALL, 5);
else
m_sizerGauge->Add(m_gauge, 1, wxCENTRE | wxALL, 5);
m_sizerGauge->Layout();
}
void GaugeWidgetsPage::StartTimer(wxButton *clicked)
{
static const int INTERVAL = 300;
wxLogMessage(wxT("Launched progress timer (interval = %d ms)"), INTERVAL);
m_timer = new wxTimer(this,
clicked->GetId() == GaugePage_Progress ? GaugePage_Timer : GaugePage_IndeterminateTimer);
m_timer->Start(INTERVAL);
clicked->SetLabel(wxT("&Stop timer"));
if (clicked->GetId() == GaugePage_Progress)
FindWindow(GaugePage_IndeterminateProgress)->Disable();
else
FindWindow(GaugePage_Progress)->Disable();
}
void GaugeWidgetsPage::StopTimer(wxButton *clicked)
{
wxCHECK_RET( m_timer, wxT("shouldn't be called") );
m_timer->Stop();
wxDELETE(m_timer);
if (clicked->GetId() == GaugePage_Progress)
{
clicked->SetLabel(wxT("Simulate &progress"));
FindWindow(GaugePage_IndeterminateProgress)->Enable();
}
else
{
clicked->SetLabel(wxT("Simulate indeterminate job"));
FindWindow(GaugePage_Progress)->Enable();
}
wxLogMessage(wxT("Progress finished."));
}
// ----------------------------------------------------------------------------
// event handlers
// ----------------------------------------------------------------------------
void GaugeWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
{
Reset();
CreateGauge();
}
void GaugeWidgetsPage::OnButtonProgress(wxCommandEvent& event)
{
wxButton *b = (wxButton *)event.GetEventObject();
if ( !m_timer )
{
StartTimer(b);
}
else // stop the running timer
{
StopTimer(b);
wxLogMessage(wxT("Stopped the timer."));
}
}
void GaugeWidgetsPage::OnButtonIndeterminateProgress(wxCommandEvent& event)
{
wxButton *b = (wxButton *)event.GetEventObject();
if ( !m_timer )
{
StartTimer(b);
}
else // stop the running timer
{
StopTimer(b);
m_gauge->SetValue(0);
wxLogMessage(wxT("Stopped the timer."));
}
}
void GaugeWidgetsPage::OnButtonClear(wxCommandEvent& WXUNUSED(event))
{
m_gauge->SetValue(0);
}
void GaugeWidgetsPage::OnButtonSetRange(wxCommandEvent& WXUNUSED(event))
{
unsigned long val;
if ( !m_textRange->GetValue().ToULong(&val) )
return;
m_range = val;
m_gauge->SetRange(val);
}
void GaugeWidgetsPage::OnButtonSetValue(wxCommandEvent& WXUNUSED(event))
{
unsigned long val;
if ( !m_textValue->GetValue().ToULong(&val) )
return;
m_gauge->SetValue(val);
}
void GaugeWidgetsPage::OnUpdateUIValueButton(wxUpdateUIEvent& event)
{
unsigned long val;
event.Enable( m_textValue->GetValue().ToULong(&val) && (val <= m_range) );
}
void GaugeWidgetsPage::OnUpdateUIRangeButton(wxUpdateUIEvent& event)
{
unsigned long val;
event.Enable( m_textRange->GetValue().ToULong(&val) );
}
void GaugeWidgetsPage::OnUpdateUIResetButton(wxUpdateUIEvent& event)
{
event.Enable( m_chkVert->GetValue() || m_chkSmooth->GetValue() ||
m_chkProgress->GetValue() );
}
void GaugeWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& WXUNUSED(event))
{
CreateGauge();
}
void GaugeWidgetsPage::OnProgressTimer(wxTimerEvent& WXUNUSED(event))
{
int val = m_gauge->GetValue();
if ( (unsigned)val < m_range )
{
m_gauge->SetValue(val + 1);
}
else // reached the end
{
wxButton *btn = (wxButton *)FindWindow(GaugePage_Progress);
wxCHECK_RET( btn, wxT("no progress button?") );
StopTimer(btn);
}
}
void GaugeWidgetsPage::OnIndeterminateProgressTimer(wxTimerEvent& WXUNUSED(event))
{
m_gauge->Pulse();
}
void GaugeWidgetsPage::OnUpdateUICurValueText(wxUpdateUIEvent& event)
{
event.SetText( wxString::Format(wxT("%d"), m_gauge->GetValue()));
}
#endif
// wxUSE_GAUGE
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