146 lines
5.5 KiB
C++
146 lines
5.5 KiB
C++
//-----------------------------------------------------------------------------
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// Name: custclass.cpp
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// Purpose: XML resources sample: A custom class to insert into a XRC file
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// Author: Robert O'Connor (rob@medicalmnemonics.com), Vaclav Slavik
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// Copyright: (c) Robert O'Connor and Vaclav Slavik
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// Licence: wxWindows licence
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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// Standard wxWidgets 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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// For all others, include the necessary headers (this file is usually all you
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// need because it includes almost all "standard" wxWidgets headers)
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#ifndef WX_PRECOMP
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#include "wx/wx.h"
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#endif
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//-----------------------------------------------------------------------------
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// Header of this .cpp file
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//-----------------------------------------------------------------------------
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#include "custclas.h"
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//-----------------------------------------------------------------------------
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// Internal constants
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//-----------------------------------------------------------------------------
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// Popup menu (PU) item control IDs. In this example, they aren't hooked up
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// to any functions. Normally you would use these IDs in your event table, so
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// that if one of these menu items is clicked, then a certain function is
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// called.
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enum {
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PU_ADD_RECORD = wxID_HIGHEST + 1,
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PU_EDIT_RECORD,
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PU_DELETE_RECORD
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};
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// Columns of the listctrl (the leftmost one starts at 0, and so on).
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// Allows easier code maintenance if want to add/rearrangement of listctrl's
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// columns.
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enum {
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RECORD_COLUMN = 0,
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ACTION_COLUMN,
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PRIORITY_COLUMN
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};
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//-----------------------------------------------------------------------------
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// wxWidgets macro: implement dynamic class
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//-----------------------------------------------------------------------------
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wxIMPLEMENT_DYNAMIC_CLASS( MyResizableListCtrl, wxListCtrl );
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//-----------------------------------------------------------------------------
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// Event table: connect the events to the handler functions to process them
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//-----------------------------------------------------------------------------
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wxBEGIN_EVENT_TABLE( MyResizableListCtrl, wxListCtrl )
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// Something to do when right mouse down
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EVT_RIGHT_DOWN( MyResizableListCtrl::ContextSensitiveMenu )
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// Something to do when resized
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EVT_SIZE( MyResizableListCtrl::OnSize )
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wxEND_EVENT_TABLE()
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//-----------------------------------------------------------------------------
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// Public methods
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//-----------------------------------------------------------------------------
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// Constructor, including setting the dialog's m_configuration_section member
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// to the incoming configuration_section string.
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MyResizableListCtrl::MyResizableListCtrl( wxWindow *parent, wxWindowID id,
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const wxPoint& pos, const wxSize& size,
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long style, const wxValidator& validator,
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const wxString& name )
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: wxListCtrl( parent, id, pos, size, style, validator, name )
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{
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// This listctrl needs to insert its columns in the constructor, since
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// as soon as the listctrl is built, it is resized and grafted onto an
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// "unknown" XRC placeholder. This induces an OnSize() event, calling the
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// overridden OnSize function for this class, which needs to have 3
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// columns to resize (else an assert on WXGTK debug build).
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InsertColumn( RECORD_COLUMN, _("Record"), wxLIST_FORMAT_LEFT, 140);
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InsertColumn( ACTION_COLUMN, _("Action"), wxLIST_FORMAT_LEFT, 70);
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InsertColumn( PRIORITY_COLUMN, _("Priority"), wxLIST_FORMAT_LEFT, 70 );
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}
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void MyResizableListCtrl::ContextSensitiveMenu( wxMouseEvent& event )
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{
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// Make an instance of a menu.
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wxMenu a_menu;
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a_menu.Append( PU_ADD_RECORD, _( "Add a new record...") );
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a_menu.Append( PU_EDIT_RECORD, _( "Edit selected record..." ) );
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a_menu.Append( PU_DELETE_RECORD, _( "Delete selected record" ) );
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// If no listctrl rows selected, then disable the menu items that
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// require selection
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if ( GetSelectedItemCount() == 0 ) {
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a_menu.Enable( PU_EDIT_RECORD, false );
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a_menu.Enable( PU_DELETE_RECORD, false );
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}
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// Show the popup menu (wxWindow::PopupMenu ), at the x,y position
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// of the click event
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PopupMenu( &a_menu, event.GetPosition() );
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}
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void MyResizableListCtrl::OnSize( wxSizeEvent &event )
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{
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// Call our custom width setting function.
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SetColumnWidths();
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// REQURED event.Skip() call to allow this event to propagate
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// upwards so others can do what they need to do in response to
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// this size event.
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event.Skip();
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}
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void MyResizableListCtrl::SetColumnWidths()
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{
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// Get width of entire listctrl
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int leftmostColumnWidth = GetSize().x;
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// Subtract width of other columns, scrollbar, and some padding
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leftmostColumnWidth -= GetColumnWidth( ACTION_COLUMN );
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leftmostColumnWidth -= GetColumnWidth( PRIORITY_COLUMN );
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leftmostColumnWidth -= wxSystemSettings::GetMetric( wxSYS_VSCROLL_X );
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leftmostColumnWidth -= 5;
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// Set the column width to the new value.
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SetColumnWidth( RECORD_COLUMN, leftmostColumnWidth );
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// This is just a debug message in case you want to watch the
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// events scroll by as you resize.
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wxLogDebug( "Successfully set column widths" );
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}
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