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357 lines
9.8 KiB
C++
357 lines
9.8 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wxMenuButton
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// Purpose: A button with a dropdown wxMenu
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// Author: John Labenski
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// Modified by:
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// Created: 11/05/2002
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// RCS-ID:
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// Copyright: (c) John Labenki
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// Licence: wxWidgets licence
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/////////////////////////////////////////////////////////////////////////////
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#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
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#pragma implementation "menubtn.h"
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#endif
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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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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#include "wx/control.h"
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#include "wx/menu.h"
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#include "wx/settings.h"
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#include "wx/bitmap.h"
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#include "wx/pen.h"
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#include "wx/dc.h"
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#endif // WX_PRECOMP
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#include "wx/things/toggle.h"
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#include "wx/things/menubtn.h"
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/* XPM */
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static const char *down_arrow_xpm_data[] = {
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/* columns rows colors chars-per-pixel */
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"5 3 2 1",
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" c None",
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"a c Black",
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/* pixels */
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"aaaaa",
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" aaa ",
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" a "};
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static wxBitmap s_dropdownBitmap; // all buttons share the same bitmap
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enum
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{
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IDD_DROPDOWN_BUTTON = 100
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};
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//-----------------------------------------------------------------------------
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// wxMenuButtonEvents
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//-----------------------------------------------------------------------------
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DEFINE_LOCAL_EVENT_TYPE(wxEVT_MENUBUTTON_OPEN)
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// ==========================================================================
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// MenuDropButton
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// ==========================================================================
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class MenuDropButton : public wxCustomButton
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{
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public:
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MenuDropButton( wxWindow *parent, wxWindowID id, long style) : wxCustomButton()
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{
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if (!s_dropdownBitmap.Ok())
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s_dropdownBitmap = wxBitmap(down_arrow_xpm_data);
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Create( parent, id, wxEmptyString, s_dropdownBitmap, wxDefaultPosition,
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wxSize(wxMENUBUTTON_DROP_WIDTH, wxMENUBUTTON_DROP_HEIGHT), style);
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}
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virtual void Paint( wxDC &dc )
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{
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wxCustomButton *labelBut = ((wxMenuButton*)GetParent())->GetLabelButton();
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// pretend that both buttons have focus (for flat style)
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if (labelBut)
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{
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wxPoint p = GetParent()->ScreenToClient(wxGetMousePosition());
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if (GetRect().Inside(p) || labelBut->GetRect().Inside(p))
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{
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m_focused = true;
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if (!labelBut->GetFocused())
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labelBut->SetFocused(true);
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}
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else
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{
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m_focused = false;
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if (labelBut->GetFocused())
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labelBut->SetFocused(false);
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}
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}
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wxCustomButton::Paint(dc);
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}
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};
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// ==========================================================================
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// MenuLabelButton
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// ==========================================================================
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class MenuLabelButton : public wxCustomButton
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{
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public:
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MenuLabelButton( wxWindow* parent, wxWindowID id,
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const wxString &label,
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const wxBitmap &bitmap,
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long style ) : wxCustomButton()
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{
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Create(parent, id, label, bitmap, wxDefaultPosition, wxDefaultSize, style);
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}
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virtual void Paint( wxDC &dc )
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{
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wxCustomButton *dropBut = ((wxMenuButton*)GetParent())->GetDropDownButton();
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// pretend that both buttons have focus (for flat style)
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if (dropBut)
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{
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wxPoint p = GetParent()->ScreenToClient(wxGetMousePosition());
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if (GetRect().Inside(p) || dropBut->GetRect().Inside(p))
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{
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m_focused = true;
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if (!dropBut->GetFocused())
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dropBut->SetFocused(true);
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}
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else
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{
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m_focused = false;
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if (dropBut->GetFocused())
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dropBut->SetFocused(false);
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}
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}
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wxCustomButton::Paint(dc);
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}
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};
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// ==========================================================================
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// wxMenuButton
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// ==========================================================================
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IMPLEMENT_DYNAMIC_CLASS( wxMenuButton, wxControl )
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BEGIN_EVENT_TABLE(wxMenuButton,wxControl)
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EVT_BUTTON(wxID_ANY, wxMenuButton::OnButton)
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#ifdef __WXMSW__
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EVT_MENU(wxID_ANY, wxMenuButton::OnMenu)
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#endif
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END_EVENT_TABLE()
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wxMenuButton::~wxMenuButton()
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{
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AssignMenu(NULL, true);
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}
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void wxMenuButton::Init()
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{
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m_labelButton = NULL;
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m_dropdownButton = NULL;
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m_menu = NULL;
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m_menu_static = false;
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m_style = 0;
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}
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bool wxMenuButton::Create( wxWindow* parent, wxWindowID id,
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const wxString &label,
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const wxBitmap &bitmap,
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const wxPoint& pos,
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const wxSize& size,
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long style,
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const wxValidator& val,
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const wxString& name)
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{
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m_style = style;
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long flat = style & wxMENUBUT_FLAT;
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wxControl::Create(parent,id,pos,size,wxNO_BORDER|wxCLIP_CHILDREN,val,name);
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wxControl::SetLabel(label);
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SetBackgroundColour(parent->GetBackgroundColour());
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SetForegroundColour(parent->GetForegroundColour());
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SetFont(parent->GetFont());
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m_labelButton = new MenuLabelButton(this, id, label, bitmap, wxCUSTBUT_BUTTON|flat);
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m_dropdownButton = new MenuDropButton(this, IDD_DROPDOWN_BUTTON, wxCUSTBUT_BUTTON|flat);
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wxSize bestSize = DoGetBestSize();
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SetSize( wxSize(size.x < 0 ? bestSize.x : size.x,
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size.y < 0 ? bestSize.y : size.y) );
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//SetBestSize(GetSize());
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return true;
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}
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#ifdef __WXMSW__
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// FIXME - I think there was a patch to fix this
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void wxMenuButton::OnMenu( wxCommandEvent &event )
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{
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event.Skip();
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wxMenuItem *mi = m_menu->FindItem(event.GetId());
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if (mi && (mi->GetKind() == wxITEM_RADIO))
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m_menu->Check(event.GetId(), true);
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}
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#endif // __WXMSW__
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void wxMenuButton::OnButton( wxCommandEvent &event)
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{
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int win_id = event.GetId();
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if (win_id == IDD_DROPDOWN_BUTTON)
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{
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if (m_menu)
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{
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wxNotifyEvent mevent(wxEVT_MENUBUTTON_OPEN, GetId());
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mevent.SetEventObject(this);
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if (GetEventHandler()->ProcessEvent(mevent) && !mevent.IsAllowed())
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return;
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if (!m_menu)
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return;
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PopupMenu(m_menu, wxPoint(0, GetSize().y));
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m_labelButton->Refresh(false);
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m_dropdownButton->Refresh(false);
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}
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}
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else if (win_id == m_labelButton->GetId())
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{
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if (!m_menu) return;
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const wxMenuItemList &items = m_menu->GetMenuItems();
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int first_radio_id = -1;
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int checked_id = -1;
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bool check_next = false;
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// find the next available radio item to check
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for (wxMenuItemList::Node *node = items.GetFirst(); node; node = node->GetNext())
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{
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wxMenuItem *mi = (wxMenuItem*)node->GetData();
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if (mi && (mi->GetKind() == wxITEM_RADIO))
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{
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if (first_radio_id == -1)
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first_radio_id = mi->GetId();
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if (check_next)
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{
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check_next = false;
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checked_id = mi->GetId();
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break;
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}
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else if (mi->IsChecked())
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check_next = true;
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}
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}
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// the last item was checked, go back to the first
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if (check_next && (first_radio_id != -1))
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checked_id = first_radio_id;
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if (checked_id != -1)
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{
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m_menu->Check(checked_id, true);
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wxCommandEvent mevent( wxEVT_COMMAND_MENU_SELECTED, checked_id);
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mevent.SetEventObject( m_menu );
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mevent.SetInt(1);
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GetEventHandler()->ProcessEvent(mevent);
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}
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}
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}
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int wxMenuButton::GetSelection() const
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{
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wxCHECK_MSG(m_menu != NULL, wxNOT_FOUND, wxT("No attached menu in wxMenuButton::GetSelection"));
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const wxMenuItemList &items = m_menu->GetMenuItems();
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for (wxMenuItemList::Node *node = items.GetFirst(); node; node = node->GetNext())
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{
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wxMenuItem *mi = (wxMenuItem*)node->GetData();
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if (mi && (mi->GetKind() == wxITEM_RADIO))
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{
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if (mi->IsChecked())
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return mi->GetId();
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}
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}
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return wxNOT_FOUND;
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}
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void wxMenuButton::AssignMenu(wxMenu *menu, bool static_menu)
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{
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if (!m_menu_static && m_menu)
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delete m_menu;
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m_menu = menu;
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m_menu_static = static_menu;
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}
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void wxMenuButton::SetToolTip(const wxString &tip)
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{
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wxWindow::SetToolTip(tip);
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((wxWindow*)m_labelButton)->SetToolTip(tip);
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((wxWindow*)m_dropdownButton)->SetToolTip(tip);
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}
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void wxMenuButton::SetToolTip(wxToolTip *tip)
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{
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wxWindow::SetToolTip(tip);
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((wxWindow*)m_labelButton)->SetToolTip(tip);
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((wxWindow*)m_dropdownButton)->SetToolTip(tip);
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}
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void wxMenuButton::DoSetSize(int x, int y, int width, int height, int sizeFlags)
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{
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wxSize curSize( GetSize() );
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wxSize bestSize( DoGetBestSize() );
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if (width == -1)
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width = curSize.GetWidth();
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if (width < 10)
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width = bestSize.GetWidth();
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if (height == -1)
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height = curSize.GetHeight();
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if (height < 5)
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height = bestSize.GetHeight();
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wxWindow::DoSetSize(x, y, width, height, sizeFlags);
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if (m_labelButton)
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m_labelButton->SetSize(0, 0, width - wxMENUBUTTON_DROP_WIDTH, height);
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if (m_dropdownButton)
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m_dropdownButton->SetSize(width-wxMENUBUTTON_DROP_WIDTH, 0, wxMENUBUTTON_DROP_WIDTH, height);
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}
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wxSize wxMenuButton::DoGetBestSize()
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{
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if (!m_labelButton || !m_dropdownButton)
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return wxSize(wxMENUBUTTON_DROP_WIDTH+wxMENUBUTTON_DROP_HEIGHT, wxMENUBUTTON_DROP_HEIGHT);
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wxSize size = m_labelButton->GetBestSize();
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size.x += wxMENUBUTTON_DROP_WIDTH;
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return size;
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}
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