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c78147b267393111a9009fb2777de85ff9b33cd8
wxWidgets/samples/combo/combo.cpp
Maarten Bent dbcfe56ae5 Make wxPenStyleComboBox in Combo sample DPI aware
2021-02-13 01:59:24 +01:00

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/////////////////////////////////////////////////////////////////////////////
// Name: combo.cpp
// Purpose: wxComboCtrl sample
// Author: Jaakko Salli
// Modified by:
// Created: Apr-30-2006
// Copyright: (c) Jaakko Salli
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
// For compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"
// for all others, include the necessary headers (this file is usually all you
// need because it includes almost all "standard" wxWidgets headers)
#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif
#if !wxUSE_COMBOCTRL
#error "Please set wxUSE_COMBOCTRL to 1 and rebuild the library."
#endif
#include "wx/image.h"
#include "wx/combo.h"
#include "wx/odcombo.h"
// ----------------------------------------------------------------------------
// resources
// ----------------------------------------------------------------------------
// the application icon (under Windows it is in resources and even
// though we could still include the XPM here it would be unused)
#ifndef wxHAS_IMAGES_IN_RESOURCES
#include "../sample.xpm"
#endif
// ----------------------------------------------------------------------------
// private classes
// ----------------------------------------------------------------------------
// Define a new application type, each program should derive a class from wxApp
class MyApp : public wxApp
{
public:
// override base class virtuals
// ----------------------------
// this one is called on application startup and is a good place for the app
// initialization (doing it here and not in the ctor allows to have an error
// return: if OnInit() returns false, the application terminates)
virtual bool OnInit() wxOVERRIDE;
};
// Define a new frame type: this is going to be our main frame
class MyFrame : public wxFrame
{
public:
// ctor and dtor
MyFrame(const wxString& title);
~MyFrame();
// event handlers (these functions should _not_ be virtual)
void OnQuit(wxCommandEvent& event);
void OnAbout(wxCommandEvent& event);
void OnShowComparison( wxCommandEvent& event );
// log wxComboCtrl events
void OnComboBoxUpdate( wxCommandEvent& event );
void OnIdle( wxIdleEvent& event );
protected:
wxTextCtrl* m_logWin;
wxLog* m_logOld;
// Common list of items for all dialogs.
wxArrayString m_arrItems;
private:
// any class wishing to process wxWidgets events must use this macro
wxDECLARE_EVENT_TABLE();
};
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
// IDs for the controls and the menu commands
enum
{
ComboCtrl_Compare = wxID_HIGHEST,
// menu items
ComboCtrl_Quit = wxID_EXIT,
// it is important for the id corresponding to the "About" command to have
// this standard value as otherwise it won't be handled properly under Mac
// (where it is special and put into the "Apple" menu)
ComboCtrl_About = wxID_ABOUT
};
// ----------------------------------------------------------------------------
// event tables and other macros for wxWidgets
// ----------------------------------------------------------------------------
// the event tables connect the wxWidgets events with the functions (event
// handlers) which process them. It can be also done at run-time, but for the
// simple menu events like this the static method is much simpler.
wxBEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_TEXT(wxID_ANY,MyFrame::OnComboBoxUpdate)
EVT_TEXT_ENTER(wxID_ANY,MyFrame::OnComboBoxUpdate)
EVT_COMBOBOX(wxID_ANY,MyFrame::OnComboBoxUpdate)
EVT_MENU(ComboCtrl_Compare, MyFrame::OnShowComparison)
EVT_MENU(ComboCtrl_Quit, MyFrame::OnQuit)
EVT_MENU(ComboCtrl_About, MyFrame::OnAbout)
EVT_IDLE(MyFrame::OnIdle)
wxEND_EVENT_TABLE()
// Create a new application object: this macro will allow wxWidgets to create
// the application object during program execution (it's better than using a
// static object for many reasons) and also implements the accessor function
// wxGetApp() which will return the reference of the right type (i.e. MyApp and
// not wxApp)
wxIMPLEMENT_APP(MyApp);
// ============================================================================
// implementation
// ============================================================================
// ----------------------------------------------------------------------------
// the application class
// ----------------------------------------------------------------------------
// 'Main program' equivalent: the program execution "starts" here
bool MyApp::OnInit()
{
if ( !wxApp::OnInit() )
return false;
// create the main application window
MyFrame *frame = new MyFrame("wxComboCtrl and wxOwnerDrawnComboBox Sample");
// and show it (the frames, unlike simple controls, are not shown when
// created initially)
frame->Show(true);
// success: wxApp::OnRun() will be called which will enter the main message
// loop and the application will run. If we returned false here, the
// application would exit immediately.
return true;
}
// ----------------------------------------------------------------------------
// wxOwnerDrawnComboBox with custom paint list items
// ----------------------------------------------------------------------------
class wxPenStyleComboBox : public wxOwnerDrawnComboBox
{
public:
virtual void OnDrawItem( wxDC& dc,
const wxRect& rect,
int item,
int flags ) const wxOVERRIDE
{
if ( item == wxNOT_FOUND )
return;
wxRect r(rect);
r.Deflate(3);
r.height -= 2;
wxPenStyle penStyle = wxPENSTYLE_SOLID;
if ( item == 1 )
penStyle = wxPENSTYLE_TRANSPARENT;
else if ( item == 2 )
penStyle = wxPENSTYLE_DOT;
else if ( item == 3 )
penStyle = wxPENSTYLE_LONG_DASH;
else if ( item == 4 )
penStyle = wxPENSTYLE_SHORT_DASH;
else if ( item == 5 )
penStyle = wxPENSTYLE_DOT_DASH;
else if ( item == 6 )
penStyle = wxPENSTYLE_BDIAGONAL_HATCH;
else if ( item == 7 )
penStyle = wxPENSTYLE_CROSSDIAG_HATCH;
else if ( item == 8 )
penStyle = wxPENSTYLE_FDIAGONAL_HATCH;
else if ( item == 9 )
penStyle = wxPENSTYLE_CROSS_HATCH;
else if ( item == 10 )
penStyle = wxPENSTYLE_HORIZONTAL_HATCH;
else if ( item == 11 )
penStyle = wxPENSTYLE_VERTICAL_HATCH;
wxPen pen( dc.GetTextForeground(), 3, penStyle );
// Get text colour as pen colour
dc.SetPen( pen );
if ( !(flags & wxODCB_PAINTING_CONTROL) )
{
dc.DrawText(GetString( item ),
r.x + 3,
(r.y + 0) + ( (r.height/2) - dc.GetCharHeight() )/2
);
dc.DrawLine( r.x+5, r.y+((r.height/4)*3), r.x+r.width - 5, r.y+((r.height/4)*3) );
}
else
{
dc.DrawLine( r.x+5, r.y+r.height/2, r.x+r.width - 5, r.y+r.height/2 );
}
}
virtual void OnDrawBackground( wxDC& dc, const wxRect& rect,
int item, int flags ) const wxOVERRIDE
{
// If item is selected or even, or we are painting the
// combo control itself, use the default rendering.
if ( (flags & (wxODCB_PAINTING_CONTROL|wxODCB_PAINTING_SELECTED)) ||
(item & 1) == 0 )
{
wxOwnerDrawnComboBox::OnDrawBackground(dc,rect,item,flags);
return;
}
// Otherwise, draw every other background with different colour.
wxColour bgCol(240,240,250);
dc.SetBrush(wxBrush(bgCol));
dc.SetPen(wxPen(bgCol));
dc.DrawRectangle(rect);
}
virtual wxCoord OnMeasureItem( size_t item ) const wxOVERRIDE
{
// Simply demonstrate the ability to have variable-height items
return FromDIP( item & 1 ? 36 : 24 );
}
virtual wxCoord OnMeasureItemWidth( size_t WXUNUSED(item) ) const wxOVERRIDE
{
return -1; // default - will be measured from text width
}
};
// ----------------------------------------------------------------------------
// wxListView Custom popup interface
// ----------------------------------------------------------------------------
#include "wx/listctrl.h"
class ListViewComboPopup : public wxListView, public wxComboPopup
{
public:
virtual void Init() wxOVERRIDE
{
m_value = -1;
m_itemHere = -1; // hot item in list
}
virtual bool Create( wxWindow* parent ) wxOVERRIDE
{
return wxListView::Create(parent,1,
wxPoint(0,0),wxDefaultSize,
wxLC_LIST|wxLC_SINGLE_SEL|
wxLC_SORT_ASCENDING|wxSIMPLE_BORDER);
}
virtual wxWindow *GetControl() wxOVERRIDE { return this; }
virtual void SetStringValue( const wxString& s ) wxOVERRIDE
{
int n = wxListView::FindItem(-1,s);
if ( n >= 0 && n < GetItemCount() )
wxListView::Select(n);
}
virtual wxString GetStringValue() const wxOVERRIDE
{
if ( m_value >= 0 )
return wxListView::GetItemText(m_value);
return wxEmptyString;
}
//
// Popup event handlers
//
// Mouse hot-tracking
void OnMouseMove(wxMouseEvent& event)
{
// Move selection to cursor if it is inside the popup
int resFlags;
int itemHere = HitTest(event.GetPosition(),resFlags);
if ( itemHere >= 0 )
{
wxListView::Select(itemHere,true);
m_itemHere = itemHere;
}
event.Skip();
}
// On mouse left, set the value and close the popup
void OnMouseClick(wxMouseEvent& WXUNUSED(event))
{
m_value = m_itemHere;
// TODO: Send event
Dismiss();
}
//
// Utilies for item manipulation
//
void AddSelection( const wxString& selstr )
{
wxListView::InsertItem(GetItemCount(),selstr);
}
protected:
int m_value; // current item index
int m_itemHere; // hot item in popup
private:
wxDECLARE_EVENT_TABLE();
};
wxBEGIN_EVENT_TABLE(ListViewComboPopup, wxListView)
EVT_MOTION(ListViewComboPopup::OnMouseMove)
// NOTE: Left down event is used instead of left up right now
// since MSW wxListCtrl doesn't seem to emit left ups
// consistently.
EVT_LEFT_DOWN(ListViewComboPopup::OnMouseClick)
wxEND_EVENT_TABLE()
// ----------------------------------------------------------------------------
// wxTreeCtrl Custom popup interface
// ----------------------------------------------------------------------------
#include "wx/treectrl.h"
class TreeCtrlComboPopup : public wxTreeCtrl, public wxComboPopup
{
public:
virtual void Init() wxOVERRIDE
{
}
virtual ~TreeCtrlComboPopup()
{
if (!m_isBeingDeleted)
{
wxMessageBox("error wxTreeCtrl::Destroy() was not called");
}
SendDestroyEvent();
}
virtual bool Create( wxWindow* parent ) wxOVERRIDE
{
return wxTreeCtrl::Create(parent,1,
wxPoint(0,0),wxDefaultSize,
wxTR_DEFAULT_STYLE | wxTR_HIDE_ROOT | wxSIMPLE_BORDER );
}
virtual void OnShow()
{
// make sure selected item is visible
if ( m_value.IsOk() )
EnsureVisible(m_value);
}
virtual wxSize GetAdjustedSize( int minWidth,
int WXUNUSED(prefHeight),
int maxHeight ) wxOVERRIDE
{
return wxSize(wxMax(300,minWidth),wxMin(250,maxHeight));
}
virtual wxWindow *GetControl() wxOVERRIDE { return this; }
// Needed by SetStringValue
wxTreeItemId FindItemByText( wxTreeItemId parent, const wxString& text )
{
wxTreeItemIdValue cookie;
wxTreeItemId child = GetFirstChild(parent,cookie);
while ( child.IsOk() )
{
if ( GetItemText(child) == text )
{
return child;
}
if ( ItemHasChildren(child) )
{
wxTreeItemId found = FindItemByText(child,text);
if ( found.IsOk() )
return found;
}
child = GetNextChild(parent,cookie);
}
return wxTreeItemId();
}
virtual void SetStringValue( const wxString& s ) wxOVERRIDE
{
wxTreeItemId root = GetRootItem();
if ( !root.IsOk() )
return;
wxTreeItemId found = FindItemByText(root,s);
if ( found.IsOk() )
{
m_value = m_itemHere = found;
wxTreeCtrl::SelectItem(found);
}
}
virtual wxString GetStringValue() const wxOVERRIDE
{
if ( m_value.IsOk() )
return wxTreeCtrl::GetItemText(m_value);
return wxEmptyString;
}
//
// Popup event handlers
//
// Mouse hot-tracking
void OnMouseMove(wxMouseEvent& event)
{
int resFlags;
wxTreeItemId itemHere = HitTest(event.GetPosition(),resFlags);
if ( itemHere.IsOk() && (resFlags & wxTREE_HITTEST_ONITEMLABEL) )
{
wxTreeCtrl::SelectItem(itemHere,true);
m_itemHere = itemHere;
}
event.Skip();
}
// On mouse left, set the value and close the popup
void OnMouseClick(wxMouseEvent& event)
{
int resFlags;
wxTreeItemId itemHere = HitTest(event.GetPosition(),resFlags);
if ( itemHere.IsOk() && (resFlags & wxTREE_HITTEST_ONITEMLABEL) )
{
m_itemHere = itemHere;
m_value = itemHere;
Dismiss();
// TODO: Send event
}
event.Skip();
}
protected:
wxTreeItemId m_value; // current item index
wxTreeItemId m_itemHere; // hot item in popup
private:
wxDECLARE_EVENT_TABLE();
};
wxBEGIN_EVENT_TABLE(TreeCtrlComboPopup, wxTreeCtrl)
EVT_MOTION(TreeCtrlComboPopup::OnMouseMove)
// NOTE: Left down event is used instead of left up right now
// since MSW wxTreeCtrl doesn't seem to emit left ups
// consistently.
EVT_LEFT_DOWN(TreeCtrlComboPopup::OnMouseClick)
wxEND_EVENT_TABLE()
// ----------------------------------------------------------------------------
// wxComboCtrl with custom popup animation, using wxWindow::ShowWithEffect().
// ----------------------------------------------------------------------------
class wxComboCtrlWithCustomPopupAnim : public wxComboCtrl
{
protected:
virtual bool AnimateShow( const wxRect& rect, int WXUNUSED(flags) ) wxOVERRIDE
{
wxWindow* win = GetPopupWindow();
win->SetSize(rect);
win->Raise(); // This is needed
win->ShowWithEffect(wxSHOW_EFFECT_BLEND);
return true;
}
};
// ----------------------------------------------------------------------------
// wxComboCtrl with entirely custom button action (opens file dialog)
// ----------------------------------------------------------------------------
class wxFileSelectorCombo : public wxComboCtrl
{
public:
wxFileSelectorCombo() : wxComboCtrl() { Init(); }
wxFileSelectorCombo(wxWindow *parent,
wxWindowID id = wxID_ANY,
const wxString& value = wxEmptyString,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = 0,
const wxValidator& validator = wxDefaultValidator,
const wxString& name = wxComboBoxNameStr)
: wxComboCtrl()
{
Init();
Create(parent,id,value,
pos,size,
// Style flag wxCC_STD_BUTTON makes the button
// behave more like a standard push button.
style | wxCC_STD_BUTTON,
validator,name);
//
// Prepare custom button bitmap (just '...' text)
wxMemoryDC dc;
wxBitmap bmp(12,16);
dc.SelectObject(bmp);
// Draw transparent background
wxColour magic(255,0,255);
wxBrush magicBrush(magic);
dc.SetBrush( magicBrush );
dc.SetPen( *wxTRANSPARENT_PEN );
dc.DrawRectangle(0,0,bmp.GetWidth(),bmp.GetHeight());
// Draw text
wxString str = "...";
int w,h;
dc.GetTextExtent(str, &w, &h, 0, 0);
dc.DrawText(str, (bmp.GetWidth()-w)/2, (bmp.GetHeight()-h)/2);
dc.SelectObject( wxNullBitmap );
// Finalize transparency with a mask
wxMask *mask = new wxMask( bmp, magic );
bmp.SetMask( mask );
SetButtonBitmaps(bmp,true);
}
virtual void OnButtonClick() wxOVERRIDE
{
// Show standard wxFileDialog on button click
wxFileDialog dlg(this,
"Choose File",
wxEmptyString,
GetValue(),
"All files (*.*)|*.*",
wxFD_OPEN);
if ( dlg.ShowModal() == wxID_OK )
{
SetValue(dlg.GetPath());
}
}
// Implement empty DoSetPopupControl to prevent assertion failure.
virtual void DoSetPopupControl(wxComboPopup* WXUNUSED(popup)) wxOVERRIDE
{
}
private:
void Init()
{
// Initialize member variables here
}
};
// ----------------------------------------------------------------------------
// main frame
// ----------------------------------------------------------------------------
// frame constructor
MyFrame::MyFrame(const wxString& title)
: wxFrame(NULL, wxID_ANY, title)
{
wxBoxSizer* topSizer;
wxBoxSizer* topRowSizer;
wxBoxSizer* colSizer;
wxBoxSizer* rowSizer;
// set the frame icon
SetIcon(wxICON(sample));
#if wxUSE_MENUS
// create a menu bar
wxMenu *fileMenu = new wxMenu;
// the "About" item should be in the help menu
wxMenu *helpMenu = new wxMenu;
helpMenu->Append(ComboCtrl_About, "&About\tF1", "Show about dialog");
fileMenu->Append(ComboCtrl_Compare, "&Compare against wxComboBox...",
"Show some wxOwnerDrawnComboBoxes side-by-side with native wxComboBoxes.");
fileMenu->AppendSeparator();
fileMenu->Append(ComboCtrl_Quit, "E&xit\tAlt-X", "Quit this program");
// now append the freshly created menu to the menu bar...
wxMenuBar *menuBar = new wxMenuBar();
menuBar->Append(fileMenu, "&File");
menuBar->Append(helpMenu, "&Help");
// ... and attach this menu bar to the frame
SetMenuBar(menuBar);
#endif // wxUSE_MENUS
wxPanel* panel = new wxPanel(this);
// Prepare log window right away since it shows EVT_TEXTs
m_logWin = new wxTextCtrl(panel, 105, wxEmptyString,
wxDefaultPosition,
wxSize(-1, 125),
wxTE_MULTILINE);
wxLogTextCtrl* logger = new wxLogTextCtrl(m_logWin);
m_logOld = logger->SetActiveTarget(logger);
logger->DisableTimestamp();
topSizer = new wxBoxSizer( wxVERTICAL );
topRowSizer = new wxBoxSizer( wxHORIZONTAL );
colSizer = new wxBoxSizer( wxVERTICAL );
wxComboCtrl* cc;
wxGenericComboCtrl* gcc;
wxOwnerDrawnComboBox* odc;
// Create common strings array
m_arrItems.Add( "Solid" );
m_arrItems.Add( "Transparent" );
m_arrItems.Add( "Dot" );
m_arrItems.Add( "Long Dash" );
m_arrItems.Add( "Short Dash" );
m_arrItems.Add( "Dot Dash" );
m_arrItems.Add( "Backward Diagonal Hatch" );
m_arrItems.Add( "Cross-diagonal Hatch" );
m_arrItems.Add( "Forward Diagonal Hatch" );
m_arrItems.Add( "Cross Hatch" );
m_arrItems.Add( "Horizontal Hatch" );
m_arrItems.Add( "Vertical Hatch" );
//
// Create pen selector ODComboBox with owner-drawn items
//
rowSizer = new wxBoxSizer( wxHORIZONTAL );
rowSizer->Add( new wxStaticText(panel,wxID_ANY,
"OwnerDrawnComboBox with owner-drawn items:"), 1,
wxALIGN_CENTER_VERTICAL|wxRIGHT, 4 );
colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
rowSizer = new wxBoxSizer( wxHORIZONTAL );
// When defining derivative class for callbacks, we need
// to use two-stage creation (or redefine the common wx
// constructor).
odc = new wxPenStyleComboBox();
odc->Create(panel,wxID_ANY,wxEmptyString,
wxDefaultPosition, wxDefaultSize,
m_arrItems,
wxCB_READONLY //wxNO_BORDER | wxCB_READONLY
);
odc->SetSelection(0);
rowSizer->Add( odc, 1, wxALIGN_CENTER_VERTICAL|wxALL, 4 );
rowSizer->AddStretchSpacer(1);
colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
//
// Same but with changed button position
//
rowSizer = new wxBoxSizer( wxHORIZONTAL );
rowSizer->Add( new wxStaticText(panel,wxID_ANY,
"OwnerDrawnComboBox with owner-drawn items and button on the left:"), 1,
wxALIGN_CENTER_VERTICAL|wxRIGHT, 4 );
colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
rowSizer = new wxBoxSizer( wxHORIZONTAL );
// When defining derivative class for callbacks, we need
// to use two-stage creation (or redefine the common wx
// constructor).
odc = new wxPenStyleComboBox();
odc->Create(panel,wxID_ANY,wxEmptyString,
wxDefaultPosition, wxDefaultSize,
m_arrItems,
wxCB_READONLY //wxNO_BORDER | wxCB_READONLY
);
odc->SetSelection(0);
// Use button size that is slightly smaller than the default.
wxSize butSize = odc->GetButtonSize();
odc->SetButtonPosition(butSize.x - 2, // button width
butSize.y - 6, // button height
wxLEFT, // side
2 // horizontal spacing
);
rowSizer->Add( odc, 1, wxALIGN_CENTER_VERTICAL|wxALL, 4 );
rowSizer->AddStretchSpacer(1);
colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
//
// List View wxComboCtrl
//
rowSizer = new wxBoxSizer( wxHORIZONTAL );
rowSizer->Add( new wxStaticText(panel,
wxID_ANY,
"List View wxComboCtrl (custom animation):"),
1, wxALIGN_CENTER_VERTICAL|wxRIGHT, 4 );
rowSizer->Add( new wxStaticText(panel,wxID_ANY,"Tree Ctrl wxComboCtrl:"), 1,
wxALIGN_CENTER_VERTICAL|wxRIGHT, 4 );
colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
rowSizer = new wxBoxSizer( wxHORIZONTAL );
cc = new wxComboCtrlWithCustomPopupAnim();
// Let's set a custom style for the contained wxTextCtrl. We need to
// use two-step creation for it to work properly.
cc->SetTextCtrlStyle(wxTE_RIGHT);
cc->Create(panel, wxID_ANY, wxEmptyString);
// Make sure we use popup that allows focusing the listview.
cc->UseAltPopupWindow();
cc->SetPopupMinWidth(300);
ListViewComboPopup* iface = new ListViewComboPopup();
cc->SetPopupControl(iface);
int i;
for ( i=0; i<100; i++ )
iface->AddSelection( wxString::Format("Item %02i",i));
rowSizer->Add( cc, 1, wxALIGN_CENTER_VERTICAL|wxALL, 5 );
//
// Tree Ctrl wxComboCtrl
//
// Note that we test that wxGenericComboCtrl works
gcc = new wxGenericComboCtrl(panel,wxID_ANY,wxEmptyString,
wxDefaultPosition, wxDefaultSize);
// Make sure we use popup that allows focusing the treectrl.
gcc->UseAltPopupWindow();
// Set popup interface right away, otherwise some of the calls
// below may fail
TreeCtrlComboPopup* tcPopup = new TreeCtrlComboPopup();
gcc->SetPopupControl(tcPopup);
// Add items using wxTreeCtrl methods directly
wxTreeItemId rootId = tcPopup->AddRoot("<hidden_root>");
wxTreeItemId groupId;
for ( i=0; i<4; i++ )
{
groupId = tcPopup->AppendItem(rootId,
wxString::Format("Branch %02i",i));
int n;
for ( n=0; n<25; n++ )
tcPopup->AppendItem(groupId,
wxString::Format("Subitem %02i",(i*25)+n));
}
gcc->SetValue("Subitem 05");
// Move button to left - it makes more sense for a tree ctrl
gcc->SetButtonPosition(-1, // button width
-1, // button height
wxLEFT, // side
0 // horizontal spacing
);
rowSizer->Add( gcc, 1, wxALIGN_CENTER_VERTICAL|wxALL, 5 );
colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
#if wxUSE_IMAGE
wxInitAllImageHandlers();
//
// Custom Dropbutton Bitmaps
// (second one uses blank button background)
//
rowSizer = new wxBoxSizer( wxHORIZONTAL );
rowSizer->Add( new wxStaticText(panel,wxID_ANY,
"OwnerDrawnComboBox with simple dropbutton graphics:"), 1,
wxALIGN_CENTER_VERTICAL|wxRIGHT, 4 );
colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
rowSizer = new wxBoxSizer( wxHORIZONTAL );
odc = new wxOwnerDrawnComboBox(panel,wxID_ANY,wxEmptyString,
wxDefaultPosition, wxDefaultSize,
m_arrItems,
(long)0 // wxCB_SORT // wxNO_BORDER | wxCB_READONLY
);
wxOwnerDrawnComboBox* odc2;
odc2 = new wxOwnerDrawnComboBox(panel,wxID_ANY,wxEmptyString,
wxDefaultPosition, wxDefaultSize,
m_arrItems,
(long)0 // wxCB_SORT // wxNO_BORDER | wxCB_READONLY
);
// Load images from disk
wxImage imgNormal("dropbutn.png");
wxImage imgPressed("dropbutp.png");
wxImage imgHover("dropbuth.png");
if ( imgNormal.IsOk() && imgPressed.IsOk() && imgHover.IsOk() )
{
wxBitmap bmpNormal(imgNormal);
wxBitmap bmpPressed(imgPressed);
wxBitmap bmpHover(imgHover);
odc->SetButtonBitmaps(bmpNormal,false,bmpPressed,bmpHover);
odc2->SetButtonBitmaps(bmpNormal,true,bmpPressed,bmpHover);
}
else
wxLogError("Dropbutton images not found");
//odc2->SetButtonPosition(0, // width adjustment
// 0, // height adjustment
// wxLEFT, // side
// 0 // horizontal spacing
// );
rowSizer->Add( odc, 1, wxALIGN_CENTER_VERTICAL|wxALL, 4 );
rowSizer->Add( odc2, 1, wxALIGN_CENTER_VERTICAL|wxALL, 4 );
colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
#endif
//
// wxComboCtrl with totally custom button action (open file dialog)
//
rowSizer = new wxBoxSizer( wxHORIZONTAL );
rowSizer->Add( new wxStaticText(panel,wxID_ANY,
"wxComboCtrl with custom button action:"), 1,
wxALIGN_CENTER_VERTICAL|wxRIGHT, 4 );
colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
rowSizer = new wxBoxSizer( wxHORIZONTAL );
wxFileSelectorCombo* fsc;
fsc = new wxFileSelectorCombo(panel,wxID_ANY,wxEmptyString,
wxDefaultPosition, wxDefaultSize,
(long)0
);
rowSizer->Add( fsc, 1, wxALIGN_CENTER_VERTICAL|wxALL, 4 );
colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
// Make sure GetFeatures is implemented
wxComboCtrl::GetFeatures();
topRowSizer->Add( colSizer, 1, wxALL, 2 );
colSizer = new wxBoxSizer( wxVERTICAL );
colSizer->AddSpacer(8);
colSizer->Add( new wxStaticText(panel, wxID_ANY, "Log Messages:"), 0, wxTOP|wxLEFT, 3 );
colSizer->Add( m_logWin, 1, wxEXPAND|wxALL, 3 );
topRowSizer->Add( colSizer, 1, wxEXPAND|wxALL, 2 );
topSizer->Add( topRowSizer, 1, wxEXPAND );
panel->SetSizer( topSizer );
topSizer->SetSizeHints( panel );
Fit();
Centre();
}
// event handlers
void MyFrame::OnComboBoxUpdate( wxCommandEvent& event )
{
// Don't show messages for the log output window (it'll crash)
if ( !event.GetEventObject()->IsKindOf(CLASSINFO(wxComboCtrl)) )
return;
if ( event.GetEventType() == wxEVT_COMBOBOX )
{
wxLogDebug("EVT_COMBOBOX(id=%i,selection=%i)",event.GetId(),event.GetSelection());
}
else if ( event.GetEventType() == wxEVT_TEXT )
{
wxLogDebug("EVT_TEXT(id=%i,string=\"%s\")",event.GetId(),event.GetString());
}
else if ( event.GetEventType() == wxEVT_TEXT_ENTER )
{
wxLogDebug("EVT_TEXT_ENTER(id=%i,string=\"%s\")",
event.GetId(), event.GetString());
}
}
void MyFrame::OnShowComparison( wxCommandEvent& WXUNUSED(event) )
{
//
// Show some wxOwnerDrawComboBoxes for comparison
//
wxBoxSizer* colSizer;
wxBoxSizer* rowSizer;
wxStaticBoxSizer* groupSizer;
wxComboBox* cb;
wxOwnerDrawnComboBox* odc;
const int border = 4;
wxDialog* dlg = new wxDialog(this,wxID_ANY,
"Compare against wxComboBox",
wxDefaultPosition,wxDefaultSize,
wxDEFAULT_DIALOG_STYLE|wxRESIZE_BORDER);
colSizer = new wxBoxSizer( wxVERTICAL );
rowSizer = new wxBoxSizer(wxHORIZONTAL);
groupSizer = new wxStaticBoxSizer(new wxStaticBox(dlg,wxID_ANY," wxOwnerDrawnComboBox "),
wxVERTICAL);
groupSizer->Add( new wxStaticText(dlg, wxID_ANY,
"Writable, with margins, sorted:"),
wxSizerFlags().Expand().Border(wxRIGHT, border) );
odc = new wxOwnerDrawnComboBox(dlg,wxID_ANY,wxEmptyString,
wxDefaultPosition, wxDefaultSize,
m_arrItems,
wxCB_SORT // wxNO_BORDER|wxCB_READONLY
);
odc->Append("H - Appended Item"); // test sorting in append
odc->SetValue("Dot Dash");
odc->SetMargins(15, 10);
groupSizer->Add( odc, wxSizerFlags().Border(wxALL, border) );
groupSizer->AddStretchSpacer();
//
// Readonly ODComboBox
groupSizer->Add( new wxStaticText(dlg, wxID_ANY,
"Read-only, big font:"),
wxSizerFlags().Border(wxRIGHT, border) );
odc = new wxOwnerDrawnComboBox(dlg,wxID_ANY,wxEmptyString,
wxDefaultPosition, wxDefaultSize,
m_arrItems,
wxCB_SORT|wxCB_READONLY // wxNO_BORDER|wxCB_READONLY
);
odc->SetFont(odc->GetFont().Scale(1.5));
odc->SetValue("Dot Dash");
odc->SetText("Dot Dash (Testing SetText)");
groupSizer->Add( odc, 0, wxALL, border );
groupSizer->AddStretchSpacer();
//
// Disabled read-only ODComboBox
groupSizer->Add( new wxStaticText(dlg,wxID_ANY,"Read-only disabled:"),
wxSizerFlags().Border(wxRIGHT, border) );
odc = new wxOwnerDrawnComboBox(dlg,wxID_ANY,wxEmptyString,
wxDefaultPosition, wxDefaultSize,
m_arrItems,
wxCB_READONLY // wxNO_BORDER|wxCB_READONLY
);
odc->SetValue("Dot Dash");
odc->Enable(false);
groupSizer->Add( odc, wxSizerFlags(3).Expand().Border(wxALL, border) );
// Disabled ODComboBox
groupSizer->Add(new wxStaticText(dlg, wxID_ANY, "Disabled:"),
wxSizerFlags().Border(wxRIGHT, border));
odc = new wxOwnerDrawnComboBox(dlg, wxID_ANY, wxEmptyString,
wxDefaultPosition, wxDefaultSize, m_arrItems);
odc->SetValue("Dot Dash");
odc->Enable(false);
groupSizer->Add(odc, wxSizerFlags(3).Expand().Border(wxALL, border));
rowSizer->Add( groupSizer, 1, wxEXPAND|wxALL, border );
groupSizer = new wxStaticBoxSizer(new wxStaticBox(dlg,wxID_ANY," wxComboBox "),
wxVERTICAL);
//
// wxComboBox
//
groupSizer->Add( new wxStaticText(dlg,wxID_ANY,
"Writable, with margins, sorted:"),
wxSizerFlags().Expand().Border(wxRIGHT, border) );
cb = new wxComboBox(dlg,wxID_ANY,wxEmptyString,
wxDefaultPosition, wxDefaultSize,
m_arrItems,
wxCB_SORT // wxNO_BORDER|wxCB_READONLY
);
cb->Append("H - Appended Item"); // test sorting in append
cb->SetValue("Dot Dash");
cb->SetMargins(15, 10);
groupSizer->Add( cb, wxSizerFlags().Border(wxALL, border) );
groupSizer->AddStretchSpacer();
//
// Readonly wxComboBox
groupSizer->Add( new wxStaticText(dlg, wxID_ANY,
"Read-only, big font:"),
wxSizerFlags().Border(wxRIGHT, border) );
cb = new wxComboBox(dlg,wxID_ANY,wxEmptyString,
wxDefaultPosition, wxDefaultSize,
m_arrItems,
wxCB_SORT|wxCB_READONLY // wxNO_BORDER|wxCB_READONLY
);
cb->SetFont(cb->GetFont().Scale(1.5));
cb->SetValue("Dot Dash");
groupSizer->Add( cb, 0, wxALL, border );
groupSizer->AddStretchSpacer();
//
// Disabled read-only wxComboBox
groupSizer->Add( new wxStaticText(dlg,wxID_ANY,"Read-only disabled:"),
wxSizerFlags().Border(wxRIGHT, border) );
cb = new wxComboBox(dlg,wxID_ANY,wxEmptyString,
wxDefaultPosition, wxDefaultSize,
m_arrItems,
wxCB_READONLY // wxNO_BORDER|wxCB_READONLY
);
cb->SetValue("Dot Dash");
cb->Enable(false);
groupSizer->Add( cb, wxSizerFlags(3).Expand().Border(wxALL, border) );
//
// Disabled wxComboBox
groupSizer->Add(new wxStaticText(dlg, wxID_ANY, "Disabled:"),
wxSizerFlags().Border(wxRIGHT, border));
cb = new wxComboBox(dlg, wxID_ANY, wxEmptyString,
wxDefaultPosition, wxDefaultSize, m_arrItems);
cb->SetValue("Dot Dash");
cb->Enable(false);
groupSizer->Add(cb, wxSizerFlags(3).Expand().Border(wxALL, border));
rowSizer->Add( groupSizer, 1, wxEXPAND|wxALL, border );
colSizer->Add( rowSizer, 1, wxEXPAND|wxALL, border );
dlg->SetSizer( colSizer );
colSizer->SetSizeHints( dlg );
dlg->SetSize(60,240);
dlg->Centre();
dlg->ShowModal();
}
MyFrame::~MyFrame()
{
delete wxLog::SetActiveTarget(m_logOld);
}
void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
{
// true is to force the frame to close
Close(true);
}
void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
{
wxMessageBox(wxString::Format(
"Welcome to %s!\n"
"\n"
"This is the wxWidgets wxComboCtrl and wxOwnerDrawnComboBox sample\n"
"running under %s.",
wxVERSION_STRING,
wxGetOsDescription()
),
"About wxComboCtrl sample",
wxOK | wxICON_INFORMATION,
this);
}
void MyFrame::OnIdle(wxIdleEvent& event)
{
// This code is useful for debugging focus problems
// (which are plentiful when dealing with popup windows).
#if 0
static wxWindow* lastFocus = (wxWindow*) NULL;
wxWindow* curFocus = ::wxWindow::FindFocus();
if ( curFocus != lastFocus )
{
const wxChar* className = "<none>";
if ( curFocus )
className = curFocus->GetClassInfo()->GetClassName();
lastFocus = curFocus;
wxLogDebug( "FOCUSED: %s %X",
className,
(unsigned int)curFocus);
}
#endif
event.Skip();
}
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