a8b4753d1d
This ensures that the expected events are given even after the widget is recreated due to a change of some controls on its page (and not because it's recreated by one of the menu commands in the parent frame). We also don't need to connect to these events from WidgetsFrame any longer (and, in fact, doing it would be wrong as we'd connect twice), which simplifies its code.
340 lines
10 KiB
C++
340 lines
10 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Program: wxWidgets Widgets Sample
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// Name: filepicker.cpp
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// Purpose: Part of the widgets sample showing wx*PickerCtrl
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// Author: Francesco Montorsi
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// Created: 20/6/2006
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// Copyright: (c) 2006 Francesco Montorsi
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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_FILEPICKERCTRL
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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/radiobox.h"
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#include "wx/statbox.h"
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#include "wx/textctrl.h"
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#endif
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#include "wx/artprov.h"
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#include "wx/sizer.h"
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#include "wx/stattext.h"
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#include "wx/checkbox.h"
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#include "wx/imaglist.h"
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#include "wx/filepicker.h"
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#include "widgets.h"
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#include "icons/filepicker.xpm"
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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enum
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{
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FilePickerMode_Open = 0,
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FilePickerMode_Save
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};
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// control ids
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enum
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{
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PickerPage_Reset = wxID_HIGHEST,
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PickerPage_File,
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PickerPage_SetDir,
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PickerPage_CurrentPath
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};
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// ----------------------------------------------------------------------------
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// FilePickerWidgetsPage
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// ----------------------------------------------------------------------------
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class FilePickerWidgetsPage : public WidgetsPage
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{
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public:
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FilePickerWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist);
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virtual wxWindow *GetWidget() const override { return m_filePicker; }
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virtual void RecreateWidget() override { RecreatePicker(); }
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// lazy creation of the content
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virtual void CreateContent() override;
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protected:
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// called only once at first construction
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void CreatePicker();
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// called to recreate an existing control
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void RecreatePicker();
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// restore the checkboxes state to the initial values
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void Reset();
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// update filepicker radiobox
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void UpdateFilePickerMode();
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// the pickers and the relative event handlers
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void OnFileChange(wxFileDirPickerEvent &ev);
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void OnCheckBox(wxCommandEvent &ev);
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void OnButtonReset(wxCommandEvent &ev);
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void OnButtonSetDir(wxCommandEvent &ev);
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void OnUpdatePath(wxUpdateUIEvent &ev);
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// the picker
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wxFilePickerCtrl *m_filePicker;
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// other controls
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// --------------
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wxCheckBox *m_chkFileTextCtrl,
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*m_chkFileOverwritePrompt,
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*m_chkFileMustExist,
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*m_chkFileChangeDir,
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*m_chkSmall;
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wxRadioBox *m_radioFilePickerMode;
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wxStaticText *m_labelPath;
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wxTextCtrl *m_textInitialDir;
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wxBoxSizer *m_sizer;
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private:
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wxDECLARE_EVENT_TABLE();
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DECLARE_WIDGETS_PAGE(FilePickerWidgetsPage)
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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(FilePickerWidgetsPage, WidgetsPage)
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EVT_BUTTON(PickerPage_Reset, FilePickerWidgetsPage::OnButtonReset)
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EVT_BUTTON(PickerPage_SetDir, FilePickerWidgetsPage::OnButtonSetDir)
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EVT_FILEPICKER_CHANGED(PickerPage_File, FilePickerWidgetsPage::OnFileChange)
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EVT_CHECKBOX(wxID_ANY, FilePickerWidgetsPage::OnCheckBox)
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EVT_RADIOBOX(wxID_ANY, FilePickerWidgetsPage::OnCheckBox)
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EVT_UPDATE_UI(PickerPage_CurrentPath, FilePickerWidgetsPage::OnUpdatePath)
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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(__WXGTK__)
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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(FilePickerWidgetsPage, "FilePicker",
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PICKER_CTRLS | FAMILY_CTRLS);
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FilePickerWidgetsPage::FilePickerWidgetsPage(WidgetsBookCtrl *book,
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wxImageList *imaglist)
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: WidgetsPage(book, imaglist, filepicker_xpm)
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{
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}
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void FilePickerWidgetsPage::CreateContent()
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{
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// left pane
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wxSizer *leftSizer = new wxBoxSizer(wxVERTICAL);
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static const wxString mode[] = { "open", "save" };
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m_radioFilePickerMode = new wxRadioBox(this, wxID_ANY, "wxFilePicker mode",
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wxDefaultPosition, wxDefaultSize,
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WXSIZEOF(mode), mode);
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leftSizer->Add(m_radioFilePickerMode, 0, wxALL|wxGROW, 5);
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wxStaticBoxSizer *styleSizer = new wxStaticBoxSizer(wxVERTICAL, this, "&FilePicker style");
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wxStaticBox* const styleSizerBox = styleSizer->GetStaticBox();
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m_chkFileTextCtrl = CreateCheckBoxAndAddToSizer(styleSizer, "With textctrl", wxID_ANY, styleSizerBox);
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m_chkFileOverwritePrompt = CreateCheckBoxAndAddToSizer(styleSizer, "Overwrite prompt", wxID_ANY, styleSizerBox);
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m_chkFileMustExist = CreateCheckBoxAndAddToSizer(styleSizer, "File must exist", wxID_ANY, styleSizerBox);
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m_chkFileChangeDir = CreateCheckBoxAndAddToSizer(styleSizer, "Change working dir", wxID_ANY, styleSizerBox);
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m_chkSmall = CreateCheckBoxAndAddToSizer(styleSizer, "&Small version", wxID_ANY, styleSizerBox);
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leftSizer->Add(styleSizer, 0, wxALL|wxGROW, 5);
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leftSizer->Add(CreateSizerWithTextAndButton
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(
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PickerPage_SetDir,
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"&Initial directory",
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wxID_ANY,
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&m_textInitialDir
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), wxSizerFlags().Expand().Border());
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leftSizer->AddSpacer(10);
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leftSizer->Add(new wxButton(this, PickerPage_Reset, "&Reset"),
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0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 15);
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Reset(); // set checkboxes state
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// create the picker and the static text displaying its current value
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m_labelPath = new wxStaticText(this, PickerPage_CurrentPath, "");
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m_filePicker = nullptr;
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CreatePicker();
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// right pane
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m_sizer = new wxBoxSizer(wxVERTICAL);
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m_sizer->AddStretchSpacer();
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m_sizer->Add(m_filePicker, wxSizerFlags().Expand().Border());
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m_sizer->AddStretchSpacer();
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m_sizer->Add(m_labelPath, wxSizerFlags().Expand().Border());
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m_sizer->AddStretchSpacer();
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// global pane
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wxSizer *sz = new wxBoxSizer(wxHORIZONTAL);
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sz->Add(leftSizer, 0, wxGROW|wxALL, 5);
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sz->Add(m_sizer, 1, wxGROW|wxALL, 5);
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SetSizer(sz);
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}
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void FilePickerWidgetsPage::CreatePicker()
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{
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delete m_filePicker;
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long style = GetAttrs().m_defaultFlags;
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if ( m_chkFileTextCtrl->GetValue() )
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style |= wxFLP_USE_TEXTCTRL;
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if ( m_chkFileOverwritePrompt->GetValue() )
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style |= wxFLP_OVERWRITE_PROMPT;
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if ( m_chkFileMustExist->GetValue() )
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style |= wxFLP_FILE_MUST_EXIST;
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if ( m_chkFileChangeDir->GetValue() )
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style |= wxFLP_CHANGE_DIR;
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if ( m_chkSmall->GetValue() )
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style |= wxFLP_SMALL;
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if (m_radioFilePickerMode->GetSelection() == FilePickerMode_Open)
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style |= wxFLP_OPEN;
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else
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style |= wxFLP_SAVE;
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// pass an empty string as initial file
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m_filePicker = new wxFilePickerCtrl(this, PickerPage_File,
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wxEmptyString,
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"Hello!", "*",
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wxDefaultPosition, wxDefaultSize,
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style);
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NotifyWidgetRecreation(m_filePicker);
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}
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void FilePickerWidgetsPage::RecreatePicker()
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{
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m_sizer->Remove(1);
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CreatePicker();
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m_sizer->Insert(1, m_filePicker, 0, wxEXPAND|wxALL, 5);
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m_sizer->Layout();
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}
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void FilePickerWidgetsPage::Reset()
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{
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m_radioFilePickerMode->SetSelection((wxFLP_DEFAULT_STYLE & wxFLP_OPEN) ?
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FilePickerMode_Open : FilePickerMode_Save);
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m_chkFileTextCtrl->SetValue((wxFLP_DEFAULT_STYLE & wxFLP_USE_TEXTCTRL) != 0);
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m_chkFileOverwritePrompt->SetValue((wxFLP_DEFAULT_STYLE & wxFLP_OVERWRITE_PROMPT) != 0);
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m_chkFileMustExist->SetValue((wxFLP_DEFAULT_STYLE & wxFLP_FILE_MUST_EXIST) != 0);
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m_chkFileChangeDir->SetValue((wxFLP_DEFAULT_STYLE & wxFLP_CHANGE_DIR) != 0);
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m_chkSmall->SetValue((wxFLP_DEFAULT_STYLE & wxFLP_SMALL) != 0);
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UpdateFilePickerMode();
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}
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void FilePickerWidgetsPage::UpdateFilePickerMode()
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{
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switch (m_radioFilePickerMode->GetSelection())
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{
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case FilePickerMode_Open:
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m_chkFileOverwritePrompt->SetValue(false);
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m_chkFileOverwritePrompt->Disable();
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m_chkFileMustExist->Enable();
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break;
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case FilePickerMode_Save:
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m_chkFileMustExist->SetValue(false);
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m_chkFileMustExist->Disable();
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m_chkFileOverwritePrompt->Enable();
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break;
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}
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}
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// ----------------------------------------------------------------------------
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// event handlers
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// ----------------------------------------------------------------------------
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void FilePickerWidgetsPage::OnButtonSetDir(wxCommandEvent& WXUNUSED(event))
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{
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const wxString& dir = m_textInitialDir->GetValue();
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m_filePicker->SetInitialDirectory(dir);
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wxLogMessage("Initial directory set to \"%s\"", dir);
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}
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void FilePickerWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
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{
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Reset();
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RecreatePicker();
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}
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void FilePickerWidgetsPage::OnFileChange(wxFileDirPickerEvent& event)
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{
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wxLogMessage("The file changed to '%s' ! The current working directory is '%s'",
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event.GetPath(), wxGetCwd());
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}
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void FilePickerWidgetsPage::OnCheckBox(wxCommandEvent &event)
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{
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if (event.GetEventObject() == m_chkFileTextCtrl ||
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event.GetEventObject() == m_chkFileOverwritePrompt ||
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event.GetEventObject() == m_chkFileMustExist ||
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event.GetEventObject() == m_chkFileChangeDir ||
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event.GetEventObject() == m_chkSmall)
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RecreatePicker();
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if (event.GetEventObject() == m_radioFilePickerMode)
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{
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UpdateFilePickerMode();
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RecreatePicker();
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}
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}
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void FilePickerWidgetsPage::OnUpdatePath(wxUpdateUIEvent& ev)
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{
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ev.SetText( "Current path: " + m_filePicker->GetPath() );
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}
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#endif // wxUSE_FILEPICKERCTRL
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