kicad/common/widgets/lib_tree.cpp

417 lines
11 KiB
C++

/* -*- c++ -*-
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2014 Henner Zeller <h.zeller@acm.org>
* Copyright (C) 2014-2018 KiCad Developers, see AUTHORS.txt for contributors.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "lib_tree.h"
#include <wxdataviewctrl_helpers.h>
#include <wx/artprov.h>
#include <wx/sizer.h>
#include <wx/statbmp.h>
#include <wx/html/htmlwin.h>
#include <lib_table_base.h>
LIB_TREE::LIB_TREE( wxWindow* aParent, LIB_TABLE* aLibTable, LIB_TREE_MODEL_ADAPTER::PTR& aAdapter,
WIDGETS aWidgets, wxHtmlWindow* aDetails )
: wxPanel( aParent ),
m_lib_table( aLibTable ),
m_adapter( aAdapter ),
m_query_ctrl( nullptr ),
m_details_ctrl( nullptr ),
m_menuActive( false ),
m_filtering( false )
{
// create space for context menu pointers, INVALID is the max value
m_menus.resize( LIB_TREE_NODE::TYPE::INVALID + 1 );
auto sizer = new wxBoxSizer( wxVERTICAL );
// Search text control
if( aWidgets & SEARCH )
{
auto search_sizer = new wxBoxSizer( wxHORIZONTAL );
m_query_ctrl = new wxTextCtrl( this, wxID_ANY, wxEmptyString, wxDefaultPosition,
wxDefaultSize, wxTE_PROCESS_ENTER );
// Additional visual cue for GTK, which hides the placeholder text on focus
#ifdef __WXGTK__
auto bitmap = new wxStaticBitmap( this, wxID_ANY, wxArtProvider::GetBitmap( wxART_FIND, wxART_FRAME_ICON ) );
if( aWidgets & DETAILS )
search_sizer->Add( bitmap, 0, wxALIGN_CENTER | wxALL, 5 );
else
search_sizer->Add( bitmap, 0, wxALIGN_CENTER | wxRIGHT, 5 );
#endif
if( aWidgets & DETAILS )
search_sizer->Add( m_query_ctrl, 1, wxLEFT | wxTOP | wxRIGHT | wxEXPAND, 5 );
else
search_sizer->Add( m_query_ctrl, 1, wxEXPAND, 5 );
sizer->Add( search_sizer, 0, wxEXPAND, 5 );
m_query_ctrl->Bind( wxEVT_TEXT, &LIB_TREE::onQueryText, this );
m_query_ctrl->Bind( wxEVT_TEXT_ENTER, &LIB_TREE::onQueryEnter, this );
m_query_ctrl->Bind( wxEVT_CHAR_HOOK, &LIB_TREE::onQueryCharHook, this );
}
// Tree control
m_tree_ctrl = new wxDataViewCtrl( this, wxID_ANY, wxDefaultPosition, wxDefaultSize,
wxDV_SINGLE | wxDV_NO_HEADER );
m_adapter->AttachTo( m_tree_ctrl );
if( aWidgets & DETAILS )
sizer->Add( m_tree_ctrl, 5, wxLEFT | wxTOP | wxRIGHT | wxEXPAND, 5 );
else
sizer->Add( m_tree_ctrl, 5, wxRIGHT | wxBOTTOM | wxEXPAND, 1 );
// Description panel
if( aWidgets & DETAILS )
{
if( !aDetails )
{
auto html_sz = ConvertDialogToPixels( wxPoint( 80, 80 ) );
m_details_ctrl = new wxHtmlWindow(
this, wxID_ANY, wxDefaultPosition, wxSize( html_sz.x, html_sz.y ),
wxHW_SCROLLBAR_AUTO );
sizer->Add( m_details_ctrl, 2, wxALL | wxEXPAND, 5 );
}
else
{
m_details_ctrl = aDetails;
}
m_details_ctrl->Bind( wxEVT_HTML_LINK_CLICKED, &LIB_TREE::onDetailsLink, this );
}
SetSizer( sizer );
m_tree_ctrl->Bind( wxEVT_DATAVIEW_ITEM_ACTIVATED, &LIB_TREE::onTreeActivate, this );
m_tree_ctrl->Bind( wxEVT_DATAVIEW_SELECTION_CHANGED, &LIB_TREE::onTreeSelect, this );
m_tree_ctrl->Bind( wxEVT_COMMAND_DATAVIEW_ITEM_CONTEXT_MENU, &LIB_TREE::onContextMenu, this );
Bind( COMPONENT_PRESELECTED, &LIB_TREE::onPreselect, this );
// If wxTextCtrl::SetHint() is called before binding wxEVT_TEXT, the event
// handler will intermittently fire.
if( m_query_ctrl )
{
m_query_ctrl->SetHint( _( "Filter" ) );
m_query_ctrl->SetFocus();
m_query_ctrl->SetValue( wxEmptyString ); // SetValue() is required here to kick off
// initial sorting and pre-selection.
}
// There may be a part preselected in the model. Make sure it is displayed.
postPreselectEvent();
Layout();
sizer->Fit( this );
#ifdef __WXGTK__
// Scrollbars must be always enabled to prevent an infinite event loop
// more details: http://trac.wxwidgets.org/ticket/18141
if( m_details_ctrl )
m_details_ctrl->ShowScrollbars( wxSHOW_SB_ALWAYS, wxSHOW_SB_ALWAYS );
#endif /* __WXGTK__ */
}
LIB_ID LIB_TREE::GetSelectedLibId( int* aUnit ) const
{
auto sel = m_tree_ctrl->GetSelection();
if( !sel )
{
LIB_ID emptyId;
return emptyId;
}
if( aUnit )
*aUnit = m_adapter->GetUnitFor( sel );
return m_adapter->GetAliasFor( sel );
}
void LIB_TREE::SelectLibId( const LIB_ID& aLibId )
{
selectIfValid( m_adapter->FindItem( aLibId ) );
}
void LIB_TREE::CenterLibId( const LIB_ID& aLibId )
{
centerIfValid( m_adapter->FindItem( aLibId ) );
}
void LIB_TREE::Unselect()
{
m_tree_ctrl->UnselectAll();
}
void LIB_TREE::ExpandLibId( const LIB_ID& aLibId )
{
expandIfValid( m_adapter->FindItem( aLibId ) );
}
void LIB_TREE::Regenerate( bool aKeepState )
{
STATE current;
// Store the state
if( aKeepState )
m_unfilteredState = getState();
wxString filter = m_query_ctrl->GetValue();
m_adapter->UpdateSearchString( filter );
m_filtering = !filter.IsEmpty();
postPreselectEvent();
// Restore the state
if( aKeepState )
setState( m_unfilteredState );
}
void LIB_TREE::SetFocus()
{
if( m_query_ctrl )
m_query_ctrl->SetFocus();
else
m_tree_ctrl->SetFocus();
}
void LIB_TREE::toggleExpand( const wxDataViewItem& aTreeId )
{
if( !aTreeId.IsOk() )
return;
if( m_tree_ctrl->IsExpanded( aTreeId ) )
m_tree_ctrl->Collapse( aTreeId );
else
m_tree_ctrl->Expand( aTreeId );
}
void LIB_TREE::selectIfValid( const wxDataViewItem& aTreeId )
{
if( aTreeId.IsOk() )
{
m_tree_ctrl->EnsureVisible( aTreeId );
m_tree_ctrl->Select( aTreeId );
postPreselectEvent();
}
}
void LIB_TREE::centerIfValid( const wxDataViewItem& aTreeId )
{
if( aTreeId.IsOk() )
m_tree_ctrl->EnsureVisible( aTreeId );
}
void LIB_TREE::expandIfValid( const wxDataViewItem& aTreeId )
{
if( aTreeId.IsOk() && !m_tree_ctrl->IsExpanded( aTreeId ) )
m_tree_ctrl->Expand( aTreeId );
}
void LIB_TREE::postPreselectEvent()
{
wxCommandEvent event( COMPONENT_PRESELECTED );
wxPostEvent( this, event );
}
void LIB_TREE::postSelectEvent()
{
wxCommandEvent event( COMPONENT_SELECTED );
wxPostEvent( this, event );
}
LIB_TREE::STATE LIB_TREE::getState() const
{
STATE state;
wxDataViewItemArray items;
m_adapter->GetChildren( wxDataViewItem( nullptr ), items );
for( const auto& item : items )
{
if( m_tree_ctrl->IsExpanded( item ) )
state.expanded.push_back( item );
}
state.selection = GetSelectedLibId();
return state;
}
void LIB_TREE::setState( const STATE& aState )
{
m_tree_ctrl->Freeze();
for( const auto& item : aState.expanded )
m_tree_ctrl->Expand( item );
// wxDataViewCtrl cannot be frozen when a selection
// command is issued, otherwise it selects a random item (Windows)
m_tree_ctrl->Thaw();
if( !aState.selection.GetLibItemName().empty() || !aState.selection.GetLibNickname().empty() )
SelectLibId( aState.selection );
}
void LIB_TREE::onQueryText( wxCommandEvent& aEvent )
{
Regenerate( false );
// Required to avoid interaction with SetHint()
// See documentation for wxTextEntry::SetHint
aEvent.Skip();
}
void LIB_TREE::onQueryEnter( wxCommandEvent& aEvent )
{
if( GetSelectedLibId().IsValid() )
postSelectEvent();
}
void LIB_TREE::onQueryCharHook( wxKeyEvent& aKeyStroke )
{
auto const sel = m_tree_ctrl->GetSelection();
auto type = sel.IsOk() ? m_adapter->GetTypeFor( sel ) : LIB_TREE_NODE::INVALID;
switch( aKeyStroke.GetKeyCode() )
{
case WXK_UP:
selectIfValid( GetPrevItem( *m_tree_ctrl, sel ) );
break;
case WXK_DOWN:
selectIfValid( GetNextItem( *m_tree_ctrl, sel ) );
break;
case WXK_ADD:
if( type == LIB_TREE_NODE::LIB )
m_tree_ctrl->Expand( sel );
break;
case WXK_SUBTRACT:
if( type == LIB_TREE_NODE::LIB )
m_tree_ctrl->Collapse( sel );
break;
case WXK_RETURN:
if( type == LIB_TREE_NODE::LIB )
{
toggleExpand( sel );
break;
}
/* fall through, so the selected component will be treated as the selected one */
default:
aKeyStroke.Skip(); // Any other key: pass on to search box directly.
break;
}
}
void LIB_TREE::onTreeSelect( wxDataViewEvent& aEvent )
{
postPreselectEvent();
}
void LIB_TREE::onTreeActivate( wxDataViewEvent& aEvent )
{
if( !GetSelectedLibId().IsValid() )
{
// Expand library/part units subtree
toggleExpand( m_tree_ctrl->GetSelection() );
}
else
{
postSelectEvent();
}
}
void LIB_TREE::onDetailsLink( wxHtmlLinkEvent& aEvent )
{
const wxHtmlLinkInfo& info = aEvent.GetLinkInfo();
::wxLaunchDefaultBrowser( info.GetHref() );
}
void LIB_TREE::onPreselect( wxCommandEvent& aEvent )
{
if( m_details_ctrl )
{
int unit = 0;
LIB_ID id = GetSelectedLibId( &unit );
if( id.IsValid() )
m_details_ctrl->SetPage( m_adapter->GenerateInfo( id, unit ) );
else
m_details_ctrl->SetPage( wxEmptyString );
}
aEvent.Skip();
}
void LIB_TREE::onContextMenu( wxDataViewEvent& aEvent )
{
auto const sel = m_tree_ctrl->GetSelection();
auto type = sel.IsOk() ? m_adapter->GetTypeFor( sel ) : LIB_TREE_NODE::INVALID;
if( m_menus[type] )
{
m_menuActive = true;
PopupMenu( m_menus[type].get() );
m_menuActive = false;
}
}
wxDEFINE_EVENT( COMPONENT_PRESELECTED, wxCommandEvent );
wxDEFINE_EVENT( COMPONENT_SELECTED, wxCommandEvent );