wxWidgets/samples/widgets/toggle.cpp
Vadim Zeitlin 0acb119ccb Remove unnecessary empty dtors from the widgets sample
No real changes, just remove completely unnecessary lines and trailing
semicolons after them.
2018-03-17 17:24:07 +01:00

541 lines
16 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Program: wxWidgets Widgets Sample
// Name: toggle.cpp
// Purpose: Part of the widgets sample showing toggle control
// Author: Dimitri Schoolwerth, Vadim Zeitlin
// Created: 27 Sep 2003
// Copyright: (c) 2006 Wlodzmierz Skiba
// 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_TOGGLEBTN
#include "wx/tglbtn.h"
#include "widgets.h"
// for all others, include the necessary headers
#ifndef WX_PRECOMP
#include "wx/button.h"
#include "wx/checkbox.h"
#include "wx/radiobox.h"
#include "wx/statbox.h"
#include "wx/textctrl.h"
#endif
#include "wx/artprov.h"
#include "wx/sizer.h"
#include "wx/dcmemory.h"
#include "icons/toggle.xpm"
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
// control ids
enum
{
TogglePage_Reset = wxID_HIGHEST,
TogglePage_ChangeLabel,
TogglePage_Picker
};
// radio boxes
enum
{
ToggleImagePos_Left,
ToggleImagePos_Right,
ToggleImagePos_Top,
ToggleImagePos_Bottom
};
enum
{
ToggleHAlign_Left,
ToggleHAlign_Centre,
ToggleHAlign_Right
};
enum
{
ToggleVAlign_Top,
ToggleVAlign_Centre,
ToggleVAlign_Bottom
};
// ----------------------------------------------------------------------------
// CheckBoxWidgetsPage
// ----------------------------------------------------------------------------
class ToggleWidgetsPage : public WidgetsPage
{
public:
ToggleWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist);
virtual wxWindow *GetWidget() const wxOVERRIDE { return m_toggle; }
virtual void RecreateWidget() wxOVERRIDE { CreateToggle(); }
// lazy creation of the content
virtual void CreateContent() wxOVERRIDE;
protected:
// event handlers
void OnCheckOrRadioBox(wxCommandEvent& event);
// event handlers
void OnButtonReset(wxCommandEvent& event);
void OnButtonChangeLabel(wxCommandEvent& event);
// reset the toggle parameters
void Reset();
// (re)create the toggle
void CreateToggle();
// helper function: create a bitmap for wxBitmapToggleButton
wxBitmap CreateBitmap(const wxString& label);
// the controls
// ------------
#if wxUSE_MARKUP
wxCheckBox *m_chkUseMarkup;
#endif // wxUSE_MARKUP
#ifdef wxHAS_BITMAPTOGGLEBUTTON
// the check/radio boxes for styles
wxCheckBox *m_chkBitmapOnly,
*m_chkTextAndBitmap,
*m_chkFit,
*m_chkUseBitmapClass;
// more checkboxes for wxBitmapToggleButton only
wxCheckBox *m_chkUsePressed,
*m_chkUseFocused,
*m_chkUseCurrent,
*m_chkUseDisabled;
// and an image position choice used if m_chkTextAndBitmap is on
wxRadioBox *m_radioImagePos;
wxRadioBox *m_radioHAlign,
*m_radioVAlign;
#endif // wxHAS_BITMAPTOGGLEBUTTON
// the checkbox itself and the sizer it is in
#ifdef wxHAS_ANY_BUTTON
wxToggleButton *m_toggle;
#else
wxToggleButtonBase *m_toggle;
#endif // wxHAS_ANY_BUTTON
wxSizer *m_sizerToggle;
// the text entries for command parameters
wxTextCtrl *m_textLabel;
private:
wxDECLARE_EVENT_TABLE();
DECLARE_WIDGETS_PAGE(ToggleWidgetsPage)
};
// ----------------------------------------------------------------------------
// event tables
// ----------------------------------------------------------------------------
wxBEGIN_EVENT_TABLE(ToggleWidgetsPage, WidgetsPage)
EVT_BUTTON(TogglePage_Reset, ToggleWidgetsPage::OnButtonReset)
EVT_BUTTON(TogglePage_ChangeLabel, ToggleWidgetsPage::OnButtonChangeLabel)
EVT_CHECKBOX(wxID_ANY, ToggleWidgetsPage::OnCheckOrRadioBox)
EVT_RADIOBOX(wxID_ANY, ToggleWidgetsPage::OnCheckOrRadioBox)
wxEND_EVENT_TABLE()
// ============================================================================
// implementation
// ============================================================================
#if defined(__WXUNIVERSAL__)
#define FAMILY_CTRLS UNIVERSAL_CTRLS
#else
#define FAMILY_CTRLS NATIVE_CTRLS
#endif
IMPLEMENT_WIDGETS_PAGE(ToggleWidgetsPage, wxT("ToggleButton"),
FAMILY_CTRLS
);
ToggleWidgetsPage::ToggleWidgetsPage(WidgetsBookCtrl *book,
wxImageList *imaglist)
:WidgetsPage(book, imaglist, toggle_xpm)
{
#if wxUSE_MARKUP
m_chkUseMarkup = (wxCheckBox *)NULL;
#endif // wxUSE_MARKUP
#ifdef wxHAS_BITMAPTOGGLEBUTTON
// init everything
m_chkBitmapOnly =
m_chkTextAndBitmap =
m_chkFit =
m_chkUseBitmapClass =
m_chkUsePressed =
m_chkUseFocused =
m_chkUseCurrent =
m_chkUseDisabled = (wxCheckBox *)NULL;
m_radioImagePos =
m_radioHAlign =
m_radioVAlign = (wxRadioBox *)NULL;
#endif // wxHAS_BITMAPTOGGLEBUTTON
m_textLabel = (wxTextCtrl *)NULL;
m_toggle = (wxToggleButton *)NULL;
m_sizerToggle = (wxSizer *)NULL;
}
void ToggleWidgetsPage::CreateContent()
{
wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
// left pane
wxStaticBox *box = new wxStaticBox(this, wxID_ANY, wxT("Styles"));
wxSizer *sizerLeft = new wxStaticBoxSizer(box, wxVERTICAL);
#ifdef wxHAS_BITMAPTOGGLEBUTTON
m_chkBitmapOnly = CreateCheckBoxAndAddToSizer(sizerLeft, "&Bitmap only");
m_chkTextAndBitmap = CreateCheckBoxAndAddToSizer(sizerLeft, "Text &and bitmap");
m_chkFit = CreateCheckBoxAndAddToSizer(sizerLeft, wxT("&Fit exactly"));
#endif // wxHAS_BITMAPTOGGLEBUTTON
#if wxUSE_MARKUP
m_chkUseMarkup = CreateCheckBoxAndAddToSizer(sizerLeft, "Interpret &markup");
#endif // wxUSE_MARKUP
#ifdef wxHAS_BITMAPTOGGLEBUTTON
m_chkUseBitmapClass = CreateCheckBoxAndAddToSizer(sizerLeft,
"Use wxBitmapToggleButton");
m_chkUseBitmapClass->SetValue(true);
sizerLeft->AddSpacer(5);
wxSizer *sizerUseLabels =
new wxStaticBoxSizer(wxVERTICAL, this,
"&Use the following bitmaps in addition to the normal one?");
m_chkUsePressed = CreateCheckBoxAndAddToSizer(sizerUseLabels,
"&Pressed (small help icon)");
m_chkUseFocused = CreateCheckBoxAndAddToSizer(sizerUseLabels,
"&Focused (small error icon)");
m_chkUseCurrent = CreateCheckBoxAndAddToSizer(sizerUseLabels,
"&Current (small warning icon)");
m_chkUseDisabled = CreateCheckBoxAndAddToSizer(sizerUseLabels,
"&Disabled (broken image icon)");
sizerLeft->Add(sizerUseLabels, wxSizerFlags().Expand().Border());
sizerLeft->AddSpacer(10);
static const wxString dirs[] =
{
"left", "right", "top", "bottom",
};
m_radioImagePos = new wxRadioBox(this, wxID_ANY, "Image &position",
wxDefaultPosition, wxDefaultSize,
WXSIZEOF(dirs), dirs);
sizerLeft->Add(m_radioImagePos, 0, wxGROW | wxALL, 5);
sizerLeft->AddSpacer(15);
// should be in sync with enums Toggle[HV]Align!
static const wxString halign[] =
{
wxT("left"),
wxT("centre"),
wxT("right"),
};
static const wxString valign[] =
{
wxT("top"),
wxT("centre"),
wxT("bottom"),
};
m_radioHAlign = new wxRadioBox(this, wxID_ANY, wxT("&Horz alignment"),
wxDefaultPosition, wxDefaultSize,
WXSIZEOF(halign), halign);
m_radioVAlign = new wxRadioBox(this, wxID_ANY, wxT("&Vert alignment"),
wxDefaultPosition, wxDefaultSize,
WXSIZEOF(valign), valign);
sizerLeft->Add(m_radioHAlign, 0, wxGROW | wxALL, 5);
sizerLeft->Add(m_radioVAlign, 0, wxGROW | wxALL, 5);
#endif // wxHAS_BITMAPTOGGLEBUTTON
sizerLeft->Add(5, 5, 0, wxGROW | wxALL, 5); // spacer
wxButton *btn = new wxButton(this, TogglePage_Reset, wxT("&Reset"));
sizerLeft->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 15);
// middle pane
wxStaticBox *box2 = new wxStaticBox(this, wxID_ANY, wxT("&Operations"));
wxSizer *sizerMiddle = new wxStaticBoxSizer(box2, wxVERTICAL);
wxSizer *sizerRow = CreateSizerWithTextAndButton(TogglePage_ChangeLabel,
wxT("Change label"),
wxID_ANY,
&m_textLabel);
m_textLabel->SetValue(wxT("&Toggle me!"));
sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
// right pane
m_sizerToggle = new wxBoxSizer(wxHORIZONTAL);
m_sizerToggle->SetMinSize(150, 0);
// the 3 panes panes compose the window
sizerTop->Add(sizerLeft, 0, (wxALL & ~wxLEFT), 10);
sizerTop->Add(sizerMiddle, 1, wxGROW | wxALL, 10);
sizerTop->Add(m_sizerToggle, 1, wxGROW | (wxALL & ~wxRIGHT), 10);
// do create the main control
Reset();
CreateToggle();
SetSizer(sizerTop);
}
void ToggleWidgetsPage::Reset()
{
#ifdef wxHAS_BITMAPTOGGLEBUTTON
m_chkBitmapOnly->SetValue(false);
m_chkFit->SetValue(true);
m_chkTextAndBitmap->SetValue(false);
#if wxUSE_MARKUP
m_chkUseMarkup->SetValue(false);
#endif // wxUSE_MARKUP
m_chkUseBitmapClass->SetValue(true);
m_chkUsePressed->SetValue(true);
m_chkUseFocused->SetValue(true);
m_chkUseCurrent->SetValue(true);
m_chkUseDisabled->SetValue(true);
m_radioImagePos->SetSelection(ToggleImagePos_Left);
m_radioHAlign->SetSelection(ToggleHAlign_Centre);
m_radioVAlign->SetSelection(ToggleVAlign_Centre);
#endif // wxHAS_BITMAPTOGGLEBUTTON
if ( m_toggle )
{
m_toggle->SetValue(false);
}
}
void ToggleWidgetsPage::CreateToggle()
{
wxString label;
bool value = false;
if ( m_toggle )
{
label = m_toggle->GetLabel();
value = m_toggle->GetValue();
size_t count = m_sizerToggle->GetChildren().GetCount();
for ( size_t n = 0; n < count; n++ )
{
m_sizerToggle->Remove(0);
}
delete m_toggle;
}
if ( label.empty() )
{
// creating for the first time or recreating a toggle button after bitmap
// button
label = m_textLabel->GetValue();
}
int flags = GetAttrs().m_defaultFlags;
#ifdef wxHAS_BITMAPTOGGLEBUTTON
switch ( m_radioHAlign->GetSelection() )
{
case ToggleHAlign_Left:
flags |= wxBU_LEFT;
break;
default:
wxFAIL_MSG(wxT("unexpected radiobox selection"));
// fall through
case ToggleHAlign_Centre:
break;
case ToggleHAlign_Right:
flags |= wxBU_RIGHT;
break;
}
switch ( m_radioVAlign->GetSelection() )
{
case ToggleVAlign_Top:
flags |= wxBU_TOP;
break;
default:
wxFAIL_MSG(wxT("unexpected radiobox selection"));
// fall through
case ToggleVAlign_Centre:
// centre vertical alignment is the default (no style)
break;
case ToggleVAlign_Bottom:
flags |= wxBU_BOTTOM;
break;
}
#endif // wxHAS_BITMAPTOGGLEBUTTON
#ifdef wxHAS_BITMAPTOGGLEBUTTON
bool showsBitmap = false;
if ( m_chkBitmapOnly->GetValue() )
{
showsBitmap = true;
wxToggleButton *btgl;
if ( m_chkUseBitmapClass->GetValue() )
{
btgl = new wxBitmapToggleButton(this, TogglePage_Picker,
CreateBitmap(wxT("normal")));
}
else
{
btgl = new wxToggleButton(this, TogglePage_Picker, wxT(""));
btgl->SetBitmapLabel(CreateBitmap(wxT("normal")));
}
#ifdef wxHAS_ANY_BUTTON
if ( m_chkUsePressed->GetValue() )
btgl->SetBitmapPressed(CreateBitmap(wxT("pushed")));
if ( m_chkUseFocused->GetValue() )
btgl->SetBitmapFocus(CreateBitmap(wxT("focused")));
if ( m_chkUseCurrent->GetValue() )
btgl->SetBitmapCurrent(CreateBitmap(wxT("hover")));
if ( m_chkUseDisabled->GetValue() )
btgl->SetBitmapDisabled(CreateBitmap(wxT("disabled")));
#endif // wxHAS_ANY_BUTTON
m_toggle = btgl;
}
else // normal button
#endif // wxHAS_BITMAPTOGGLEBUTTON
{
m_toggle = new wxToggleButton(this, TogglePage_Picker, label,
wxDefaultPosition, wxDefaultSize,
flags);
}
m_toggle->SetValue(value);
#ifdef wxHAS_BITMAPTOGGLEBUTTON
#ifdef wxHAS_ANY_BUTTON
if ( !showsBitmap && m_chkTextAndBitmap->GetValue() )
{
showsBitmap = true;
static const wxDirection positions[] =
{
wxLEFT, wxRIGHT, wxTOP, wxBOTTOM
};
m_toggle->SetBitmap(wxArtProvider::GetIcon(wxART_INFORMATION, wxART_BUTTON),
positions[m_radioImagePos->GetSelection()]);
if ( m_chkUsePressed->GetValue() )
m_toggle->SetBitmapPressed(wxArtProvider::GetIcon(wxART_HELP, wxART_BUTTON));
if ( m_chkUseFocused->GetValue() )
m_toggle->SetBitmapFocus(wxArtProvider::GetIcon(wxART_ERROR, wxART_BUTTON));
if ( m_chkUseCurrent->GetValue() )
m_toggle->SetBitmapCurrent(wxArtProvider::GetIcon(wxART_WARNING, wxART_BUTTON));
if ( m_chkUseDisabled->GetValue() )
m_toggle->SetBitmapDisabled(wxArtProvider::GetIcon(wxART_MISSING_IMAGE, wxART_BUTTON));
}
#endif // wxHAS_ANY_BUTTON
m_chkUseBitmapClass->Enable(showsBitmap);
m_chkUsePressed->Enable(showsBitmap);
m_chkUseFocused->Enable(showsBitmap);
m_chkUseCurrent->Enable(showsBitmap);
m_chkUseDisabled->Enable(showsBitmap);
#endif // wxHAS_BITMAPTOGGLEBUTTON
m_sizerToggle->Add(0, 0, 1, wxCENTRE);
m_sizerToggle->Add(m_toggle, 1, wxCENTRE);
m_sizerToggle->Add(0, 0, 1, wxCENTRE);
m_sizerToggle->Layout();
}
// ----------------------------------------------------------------------------
// event handlers
// ----------------------------------------------------------------------------
void ToggleWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
{
Reset();
CreateToggle();
}
void ToggleWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& WXUNUSED(event))
{
CreateToggle();
}
void ToggleWidgetsPage::OnButtonChangeLabel(wxCommandEvent& WXUNUSED(event))
{
const wxString labelText = m_textLabel->GetValue();
#if wxUSE_MARKUP
if ( m_chkUseMarkup->GetValue() )
m_toggle->SetLabelMarkup(labelText);
else
#endif // wxUSE_MARKUP
m_toggle->SetLabel(labelText);
}
#ifdef wxHAS_BITMAPTOGGLEBUTTON
// ----------------------------------------------------------------------------
// bitmap toggle button stuff
// ----------------------------------------------------------------------------
wxBitmap ToggleWidgetsPage::CreateBitmap(const wxString& label)
{
wxBitmap bmp(180, 70); // shouldn't hardcode but it's simpler like this
wxMemoryDC dc;
dc.SelectObject(bmp);
dc.SetBackground(*wxCYAN_BRUSH);
dc.Clear();
dc.SetTextForeground(*wxBLACK);
dc.DrawLabel(wxStripMenuCodes(m_textLabel->GetValue()) + wxT("\n")
wxT("(") + label + wxT(" state)"),
wxArtProvider::GetBitmap(wxART_INFORMATION),
wxRect(10, 10, bmp.GetWidth() - 20, bmp.GetHeight() - 20),
wxALIGN_CENTRE);
return bmp;
}
#endif // wxHAS_BITMAPTOGGLEBUTTON
#endif // wxUSE_TOGGLEBTN