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foobar2000/foo_sample/listcontrol-advanced.cpp
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323
foobar2000/foo_sample/listcontrol-advanced.cpp
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// Advanced CListControl use demo
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// Subclasses a CListControl to use all its features
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#include "stdafx.h"
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#include "resource.h"
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#include <helpers/atl-misc.h>
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#include <libPPUI/CListControlComplete.h>
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#include <libPPUI/CListControl-Cells.h>
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#include <string>
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#include <algorithm>
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#include <vector>
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namespace {
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struct listData_t {
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std::string m_key, m_value;
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bool m_checkState = false;
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};
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static std::vector<listData_t> makeListData() {
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std::vector<listData_t> data;
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data.resize( 10 );
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for( size_t walk = 0; walk < data.size(); ++ walk ) {
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auto & rec = data[walk];
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rec.m_key = (PFC_string_formatter() << "Item #" << (walk+1) ).c_str();
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rec.m_value = "edit me";
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}
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return data;
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}
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// See CListControlComplete.h for base class description
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typedef CListControlComplete CListControlDemoParent;
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class CListControlDemo : public CListControlDemoParent {
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typedef CListControlDemoParent parent_t;
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public:
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BEGIN_MSG_MAP_EX(CListControlDemo)
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CHAIN_MSG_MAP( parent_t );
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MSG_WM_CREATE(OnCreate)
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MSG_WM_CONTEXTMENU(OnContextMenu)
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END_MSG_MAP()
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// Context menu handler
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void OnContextMenu(CWindow wnd, CPoint point) {
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// did we get a (-1,-1) point due to context menu key rather than right click?
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// GetContextMenuPoint fixes that, returning a proper point at which the menu should be shown
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point = this->GetContextMenuPoint(point);
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CMenu menu;
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// WIN32_OP_D() : debug build only return value check
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// Used to check for obscure errors in debug builds, does nothing (ignores errors) in release build
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WIN32_OP_D(menu.CreatePopupMenu());
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enum { ID_TEST1 = 1, ID_TEST2, ID_SELECTALL, ID_SELECTNONE, ID_INVERTSEL };
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menu.AppendMenu(MF_STRING, ID_TEST1, L"Test 1");
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menu.AppendMenu(MF_STRING, ID_TEST2, L"Test 2");
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menu.AppendMenu(MF_SEPARATOR);
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// Note: Ctrl+A handled automatically by CListControl, no need for us to catch it
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menu.AppendMenu(MF_STRING, ID_SELECTALL, L"Select all\tCtrl+A");
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menu.AppendMenu(MF_STRING, ID_SELECTNONE, L"Select none");
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menu.AppendMenu(MF_STRING, ID_INVERTSEL, L"Invert selection");
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int cmd;
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{
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// Callback object to show menu command descriptions in the status bar.
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// it's actually a hidden window, needs a parent HWND, where we feed our control's HWND
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CMenuDescriptionMap descriptions(m_hWnd);
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// Set descriptions of all our items
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descriptions.Set(ID_TEST1, "This is a test item #1");
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descriptions.Set(ID_TEST2, "This is a test item #2");
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descriptions.Set(ID_SELECTALL, "Selects all items");
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descriptions.Set(ID_SELECTNONE, "Deselects all items");
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descriptions.Set(ID_INVERTSEL, "Invert selection");
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cmd = menu.TrackPopupMenuEx(TPM_RIGHTBUTTON | TPM_NONOTIFY | TPM_RETURNCMD, point.x, point.y, descriptions, nullptr);
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}
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switch(cmd) {
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case ID_TEST1:
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{
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pfc::string_formatter msg;
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msg << "Test command #1 triggered.\r\n";
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msg << this->GetSelectedCount() << " items selected.";
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// popup_message : non-blocking MessageBox equivalent
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popup_message::g_show(msg, "Information");
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}
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break;
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case ID_TEST2:
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{
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pfc::string_formatter msg;
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msg << "Test command #1 triggered.\r\n";
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msg << "Selected items:\r\n";
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for( size_t walk = 0; walk < GetItemCount(); ++ walk) {
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if ( this->IsItemSelected( walk ) ) {
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msg << m_data[walk].m_key.c_str() << "\r\n";
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}
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}
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msg << "End selected items.";
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// popup_message : non-blocking MessageBox equivalent
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popup_message::g_show(msg, "Information");
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}
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break;
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case ID_SELECTALL:
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this->SelectAll(); // trivial
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break;
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case ID_SELECTNONE:
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this->SelectNone(); // trivial
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break;
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case ID_INVERTSEL:
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{
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auto mask = this->GetSelectionMask();
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this->SetSelection(
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// Items which we alter - all of them
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pfc::bit_array_true(),
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// Selection values - NOT'd original selection mask
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pfc::bit_array_not(mask)
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);
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// Exclusion of footer item from selection handled via CanSelectItem()
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}
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break;
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}
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}
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int OnCreate(LPCREATESTRUCT lpCreateStruct) {
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InitHeader(); // set up header control with columns
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SetWindowText(L"List Control Demo"); // screen reader will see this
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return 0;
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}
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void InitHeader() {
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InitializeHeaderCtrl(HDS_FULLDRAG);
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// never hardcode values in pixels, always use screen DPI
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auto DPI = m_dpi;
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AddColumn( "Check", MulDiv(60, DPI.cx, 96 ) );
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AddColumn( "Name", MulDiv(100, DPI.cx, 96 ) );
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AddColumn( "Value", MulDiv(100, DPI.cx, 96 ) );
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}
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bool CanSelectItem( size_t row ) const override {
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// can not select footer
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return row != footerRow();
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}
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size_t footerRow() const {
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return m_data.size();
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}
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t_size GetItemCount() const override {
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return m_data.size() + 1; // footer
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}
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void onFooterClicked() {
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SelectNone();
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listData_t obj = {};
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obj.m_key = "New item";
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size_t index = m_data.size();
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m_data.push_back( std::move(obj) );
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OnItemsInserted(index, 1, true);
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}
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void OnSubItemClicked(t_size item, t_size subItem, CPoint pt) override {
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if ( item == footerRow() ) {
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onFooterClicked(); return;
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}
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if ( subItem == 2 ) {
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TableEdit_Start(item, subItem); return;
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}
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__super::OnSubItemClicked( item, subItem, pt );
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}
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bool AllowScrollbar(bool vertical) const override {
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return true;
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}
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t_size InsertIndexFromPointEx(const CPoint & pt, bool & bInside) const override {
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// Drag&drop insertion point hook, for reordering only
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auto ret = __super::InsertIndexFromPointEx(pt, bInside);
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bInside = false; // never drop *into* an item, only between, as we only allow reorder
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if ( ret > m_data.size() ) ret = m_data.size(); // never allow drop beyond footer
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return ret;
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}
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void RequestReorder(size_t const * order, size_t count) override {
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// we've been asked to reorder the items, by either drag&drop or cursors+modifiers
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// we can either reorder as requested, reorder partially if some of the items aren't moveable, or reject the request
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PFC_ASSERT( count == GetItemCount() );
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// Footer row cannot be moved
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if ( order[footerRow()] != footerRow() ) return;
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pfc::reorder_t( m_data, order, count );
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this->OnItemsReordered( order, count );
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}
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void RemoveMask( pfc::bit_array const & mask ) {
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if ( mask.get(footerRow() ) ) return; // footer row cannot be removed
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auto oldCount = GetItemCount();
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pfc::remove_mask_t( m_data, mask );
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this->OnItemsRemoved( mask, oldCount );
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}
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void RequestRemoveSelection() override {
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// Delete key etc
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RemoveMask(GetSelectionMask());
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}
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void ExecuteDefaultAction(t_size index) override {
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// double click, enter key, etc
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if ( index == footerRow() ) onFooterClicked();
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}
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bool GetSubItemText(t_size item, t_size subItem, pfc::string_base & out) const override {
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if ( item == footerRow() ) {
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if ( subItem == 0 ) {
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out = "+ add new";
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return true;
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}
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return false;
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}
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auto & rec = m_data[item];
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switch(subItem) {
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case 0:
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// pass blank string or return false to create a checkbox only column
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out = "check";
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return true;
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case 1:
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out = rec.m_key.c_str();
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return true;
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case 2:
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out = rec.m_value.c_str();
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return true;
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default:
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return false;
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}
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}
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size_t GetSubItemSpan(size_t row, size_t column) const override {
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if ( row == footerRow() && column == 0 ) {
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return GetColumnCount();
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}
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return 1;
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}
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cellType_t GetCellType(size_t item, size_t subItem) const override {
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// cellType_t is a pointer to a cell class object supplying cell behavior specification & rendering methods
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// use PFC_SINGLETON to provide static instances of used cells
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if ( item == footerRow() ) {
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if ( subItem == 0 ) {
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return & PFC_SINGLETON( CListCell_Button );
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} else {
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return nullptr;
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}
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}
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switch(subItem) {
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case 0:
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return & PFC_SINGLETON( CListCell_Checkbox );
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default:
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return & PFC_SINGLETON( CListCell_Text );
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}
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}
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bool GetCellTypeSupported() const override {
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return true;
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}
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bool GetCellCheckState(size_t item, size_t subItem) const override {
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if ( subItem == 0 ) {
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auto & rec = m_data[item];
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return rec.m_checkState;
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}
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return false;
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}
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void SetCellCheckState(size_t item, size_t subItem, bool value) override {
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if ( subItem == 0 ) {
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auto & rec = m_data[item];
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if (rec.m_checkState != value) {
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rec.m_checkState = value;
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__super::SetCellCheckState(item, subItem, value);
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}
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}
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}
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uint32_t QueryDragDropTypes() const override {return dragDrop_reorder;}
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// Inplace edit handlers
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// Overrides of CTableEditHelperV2 methods
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void TableEdit_SetField(t_size item, t_size subItem, const char * value) override {
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if ( subItem == 2 ) {
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m_data[item].m_value = value;
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ReloadItem( item );
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}
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}
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bool TableEdit_IsColumnEditable(t_size subItem) const override {
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return subItem == 2;
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}
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private:
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std::vector< listData_t > m_data = makeListData();
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};
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// Straightforward WTL dialog code
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class CListControlAdvancedDemoDialog : public CDialogImpl<CListControlAdvancedDemoDialog> {
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public:
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enum { IDD = IDD_LISTCONTROL_DEMO };
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BEGIN_MSG_MAP_EX(CListControlAdvancedDemoDialog)
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MSG_WM_INITDIALOG(OnInitDialog)
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COMMAND_HANDLER_EX(IDCANCEL, BN_CLICKED, OnCancel)
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END_MSG_MAP()
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private:
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void OnCancel(UINT, int, CWindow) {
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DestroyWindow();
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}
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BOOL OnInitDialog(CWindow, LPARAM) {
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// Create replacing existing windows list control
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// automatically initialize position, font, etc
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m_list.CreateInDialog( *this, IDC_LIST1 );
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ShowWindow(SW_SHOW);
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return TRUE; // system should set focus
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}
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CListControlDemo m_list;
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};
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}
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// Called from mainmenu.cpp
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void RunListControlAdvancedDemo() {
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// automatically creates the dialog with object lifetime management and modeless dialog registration
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fb2k::newDialog<CListControlAdvancedDemoDialog>();
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}
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