02f1ee3987
This allows to customize the string shown when there is no valid date under MSW (only, for now) and can be notably used to suppress the unused date completely, which can be useful to lighten up the display when there are many controls. Add UI elements to the widgets sample allowing to test the new function.
369 lines
11 KiB
C++
369 lines
11 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Program: wxWidgets Widgets Sample
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// Name: datepick.cpp
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// Purpose: Part of the widgets sample showing date picker
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// Author: Dimitri Schoolwerth, Vadim Zeitlin
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// Created: 27 Sep 2003
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// Copyright: (c) 2003 wxWindows team
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// ============================================================================
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// declarations
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// ============================================================================
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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// for compilers that support precompilation, includes "wx/wx.h".
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#include "wx/wxprec.h"
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#if wxUSE_DATEPICKCTRL
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// for all others, include the necessary headers
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#ifndef WX_PRECOMP
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#include "wx/app.h"
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#include "wx/log.h"
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#include "wx/bitmap.h"
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#include "wx/button.h"
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#include "wx/checkbox.h"
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#include "wx/radiobox.h"
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#include "wx/statbox.h"
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#include "wx/textctrl.h"
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#include "wx/sizer.h"
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#endif
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#include "wx/datectrl.h"
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#include "wx/dateevt.h"
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#include "widgets.h"
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#include "icons/datepick.xpm"
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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// control ids
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enum
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{
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DatePickerPage_Reset = wxID_HIGHEST,
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DatePickerPage_Set,
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DatePickerPage_SetRange,
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DatePickerPage_SetNullText,
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DatePickerPage_Picker
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};
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// ----------------------------------------------------------------------------
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// CheckBoxWidgetsPage
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// ----------------------------------------------------------------------------
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class DatePickerWidgetsPage : public WidgetsPage
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{
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public:
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DatePickerWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist);
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virtual wxWindow *GetWidget() const wxOVERRIDE { return m_datePicker; }
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virtual void RecreateWidget() wxOVERRIDE { CreateDatePicker(); }
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// lazy creation of the content
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virtual void CreateContent() wxOVERRIDE;
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protected:
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// event handlers
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void OnDateChanged(wxDateEvent& event);
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void OnButtonSet(wxCommandEvent& event);
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void OnButtonSetRange(wxCommandEvent& event);
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void OnButtonSetNullText(wxCommandEvent& event);
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void OnButtonReset(wxCommandEvent& event);
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// reset the date picker parameters
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void Reset();
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// (re)create the date picker
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void CreateDatePicker();
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// the controls
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// ------------
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// the checkbox itself and the sizer it is in
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wxDatePickerCtrl *m_datePicker;
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wxSizer *m_sizerDatePicker;
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wxTextCtrl *m_textCur;
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wxTextCtrl *m_textMin;
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wxTextCtrl *m_textMax;
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wxTextCtrl *m_textNull;
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wxRadioBox* m_radioKind;
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wxCheckBox* m_chkStyleCentury;
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wxCheckBox* m_chkStyleAllowNone;
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// the text entries for command parameters
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wxTextCtrl *m_textLabel;
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private:
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wxDECLARE_EVENT_TABLE();
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DECLARE_WIDGETS_PAGE(DatePickerWidgetsPage)
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};
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// ----------------------------------------------------------------------------
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// event tables
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// ----------------------------------------------------------------------------
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wxBEGIN_EVENT_TABLE(DatePickerWidgetsPage, WidgetsPage)
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EVT_BUTTON(DatePickerPage_Reset, DatePickerWidgetsPage::OnButtonReset)
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EVT_BUTTON(DatePickerPage_Set, DatePickerWidgetsPage::OnButtonSet)
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EVT_BUTTON(DatePickerPage_SetRange, DatePickerWidgetsPage::OnButtonSetRange)
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EVT_BUTTON(DatePickerPage_SetNullText, DatePickerWidgetsPage::OnButtonSetNullText)
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EVT_DATE_CHANGED(wxID_ANY, DatePickerWidgetsPage::OnDateChanged)
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wxEND_EVENT_TABLE()
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// ============================================================================
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// implementation
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// ============================================================================
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#if defined(__WXMSW__)
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#define FAMILY_CTRLS NATIVE_CTRLS
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#else
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#define FAMILY_CTRLS GENERIC_CTRLS
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#endif
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IMPLEMENT_WIDGETS_PAGE(DatePickerWidgetsPage, "DatePicker",
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FAMILY_CTRLS | PICKER_CTRLS
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);
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DatePickerWidgetsPage::DatePickerWidgetsPage(WidgetsBookCtrl *book,
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wxImageList *imaglist)
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:WidgetsPage(book, imaglist, datepick_xpm)
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{
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}
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void DatePickerWidgetsPage::CreateContent()
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{
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wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
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// left pane: style
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wxSizer* const sizerLeft = new wxBoxSizer(wxVERTICAL);
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static const wxString kinds[] = { "&Default", "&Spin", "Drop do&wn" };
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m_radioKind = new wxRadioBox(this, wxID_ANY, "&Kind",
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wxDefaultPosition, wxDefaultSize,
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WXSIZEOF(kinds), kinds,
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1, wxRA_SPECIFY_COLS);
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sizerLeft->Add(m_radioKind, wxSizerFlags().Expand().Border());
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wxSizer* const sizerStyle = new wxStaticBoxSizer(wxVERTICAL, this, "&Style");
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m_chkStyleCentury = CreateCheckBoxAndAddToSizer(sizerStyle, "Show ¢ury");
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m_chkStyleAllowNone = CreateCheckBoxAndAddToSizer(sizerStyle, "Allow &no value");
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sizerLeft->Add(sizerStyle, wxSizerFlags().Expand().Border());
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sizerLeft->Add(new wxButton(this, DatePickerPage_Reset, "&Recreate"),
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wxSizerFlags().Centre().Border());
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// middle pane: operations
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wxSizer* const sizerMiddle = new wxBoxSizer(wxVERTICAL);
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sizerMiddle->Add(CreateSizerWithTextAndButton
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(
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DatePickerPage_Set,
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"&Set date",
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wxID_ANY,
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&m_textCur
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),
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wxSizerFlags().Expand().Border());
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m_textCur->SetMinSize(wxSize(GetTextExtent(" 9999-99-99 ").x, -1));
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sizerMiddle->AddSpacer(10);
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sizerMiddle->Add(CreateSizerWithTextAndLabel
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(
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"&Min date",
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wxID_ANY,
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&m_textMin
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),
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wxSizerFlags().Expand().Border());
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sizerMiddle->Add(CreateSizerWithTextAndLabel
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(
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"Ma&x date",
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wxID_ANY,
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&m_textMax
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),
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wxSizerFlags().Expand().Border());
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sizerMiddle->Add(new wxButton(this, DatePickerPage_SetRange, "Set &range"),
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wxSizerFlags().Centre().Border());
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sizerMiddle->AddSpacer(10);
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sizerMiddle->Add(CreateSizerWithTextAndLabel
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(
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"&Null text",
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wxID_ANY,
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&m_textNull
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),
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wxSizerFlags().Expand().Border());
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sizerMiddle->Add(new wxButton(this, DatePickerPage_SetNullText,
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"Set &null text"),
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wxSizerFlags().Centre().Border());
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// right pane: control itself
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wxSizer *sizerRight = new wxBoxSizer(wxHORIZONTAL);
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m_datePicker = new wxDatePickerCtrl(this, DatePickerPage_Picker);
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sizerRight->Add(0, 0, 1, wxCENTRE);
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sizerRight->Add(m_datePicker, 1, wxCENTRE);
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sizerRight->Add(0, 0, 1, wxCENTRE);
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m_sizerDatePicker = sizerRight; // save it to modify it later
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// the 3 panes panes compose the window
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sizerTop->Add(sizerLeft, 0, (wxALL & ~wxLEFT), 10);
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sizerTop->Add(sizerMiddle, 0, (wxTOP | wxBOTTOM), 10);
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sizerTop->Add(sizerRight, 1, wxGROW | (wxALL & ~wxRIGHT), 10);
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// final initializations
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m_chkStyleCentury->SetValue(true);
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Reset();
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SetSizer(sizerTop);
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}
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void DatePickerWidgetsPage::Reset()
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{
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const wxDateTime today = wxDateTime::Today();
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m_datePicker->SetValue(today);
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m_textCur->SetValue(today.FormatISODate());
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}
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void DatePickerWidgetsPage::CreateDatePicker()
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{
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const wxDateTime value = m_datePicker->GetValue();
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size_t count = m_sizerDatePicker->GetChildren().GetCount();
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for ( size_t n = 0; n < count; n++ )
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{
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m_sizerDatePicker->Remove(0);
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}
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delete m_datePicker;
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long style = GetAttrs().m_defaultFlags;
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switch ( m_radioKind->GetSelection() )
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{
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case 0:
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style = wxDP_DEFAULT;
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break;
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case 1:
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style = wxDP_SPIN;
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break;
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case 2:
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style = wxDP_DROPDOWN;
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break;
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}
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if ( m_chkStyleCentury->GetValue() )
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style |= wxDP_SHOWCENTURY;
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if ( m_chkStyleAllowNone->GetValue() )
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style |= wxDP_ALLOWNONE;
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m_datePicker = new wxDatePickerCtrl(this, DatePickerPage_Picker, value,
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wxDefaultPosition, wxDefaultSize,
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style);
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m_sizerDatePicker->Add(0, 0, 1, wxCENTRE);
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m_sizerDatePicker->Add(m_datePicker, 1, wxCENTRE);
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m_sizerDatePicker->Add(0, 0, 1, wxCENTRE);
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m_sizerDatePicker->Layout();
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}
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// ----------------------------------------------------------------------------
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// event handlers
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// ----------------------------------------------------------------------------
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void DatePickerWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
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{
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Reset();
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CreateDatePicker();
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}
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static bool GetDateFromTextControl(wxDateTime& dt, const wxTextCtrl* text)
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{
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const wxString& value = text->GetValue();
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if ( !value.empty() )
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{
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wxString::const_iterator end;
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if ( !dt.ParseDate(value, &end) || end != value.end() )
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{
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wxLogError("Invalid date \"%s\"");
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return false;
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}
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}
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return true;
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}
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void DatePickerWidgetsPage::OnButtonSet(wxCommandEvent& WXUNUSED(event))
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{
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wxDateTime dt;
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if ( GetDateFromTextControl(dt, m_textCur) )
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m_datePicker->SetValue(dt);
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}
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void DatePickerWidgetsPage::OnButtonSetRange(wxCommandEvent& WXUNUSED(event))
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{
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wxDateTime dt1, dt2;
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if ( !GetDateFromTextControl(dt1, m_textMin) ||
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!GetDateFromTextControl(dt2, m_textMax) )
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return;
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m_datePicker->SetRange(dt1, dt2);
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if ( !m_datePicker->GetRange(&dt1, &dt2) )
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{
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wxLogMessage("No range set");
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}
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else
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{
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m_textMin->SetValue(dt1.IsValid() ? dt1.FormatISODate() : wxString());
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m_textMax->SetValue(dt2.IsValid() ? dt2.FormatISODate() : wxString());
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wxLogMessage("Date picker range updated");
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}
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}
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void DatePickerWidgetsPage::OnButtonSetNullText(wxCommandEvent& WXUNUSED(event))
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{
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m_datePicker->SetNullText(m_textNull->GetValue());
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}
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// Helper function which has to be used here because the controls with
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// wxDP_ALLOWNONE style can have invalid date, both in the control itself and
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// in the event it generates.
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static wxString FormatPossiblyInvalidDate(const wxDateTime& dt)
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{
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return dt.IsValid() ? dt.FormatISOCombined() : wxString("[none]");
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}
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void DatePickerWidgetsPage::OnDateChanged(wxDateEvent& event)
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{
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wxLogMessage("Date changed, now is %s (control value is %s).",
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FormatPossiblyInvalidDate(event.GetDate()),
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FormatPossiblyInvalidDate(m_datePicker->GetValue()));
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}
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#endif // wxUSE_DATEPICKCTRL
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