wxWidgets/samples/widgets/bmpcombobox.cpp
Vadim Zeitlin 3f66f6a5b3 Remove all lines containing cvs/svn "$Id$" keyword.
This keyword is not expanded by Git which means it's not replaced with the
correct revision value in the releases made using git-based scripts and it's
confusing to have lines with unexpanded "$Id$" in the released files. As
expanding them with Git is not that simple (it could be done with git archive
and export-subst attribute) and there are not many benefits in having them in
the first place, just remove all these lines.

If nothing else, this will make an eventual transition to Git simpler.

Closes #14487.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74602 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2013-07-26 16:02:46 +00:00

946 lines
29 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Program: wxWidgets Widgets Sample
// Name: bmpcombobox.cpp
// Purpose: Part of the widgets sample showing wxBitmapComboBox
// Author: Jaakko Salli
// Created: Sep-01-2006
// Copyright: (c) 2006 Jaakko Salli
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
// for compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#if wxUSE_BITMAPCOMBOBOX
// for all others, include the necessary headers
#ifndef WX_PRECOMP
#include "wx/log.h"
#include "wx/bitmap.h"
#include "wx/button.h"
#include "wx/checkbox.h"
#include "wx/combobox.h"
#include "wx/radiobox.h"
#include "wx/statbox.h"
#include "wx/textctrl.h"
#include "wx/filedlg.h"
#endif
#include "wx/stattext.h"
#include "wx/dc.h"
#include "wx/dcmemory.h"
#include "wx/sizer.h"
#include "wx/icon.h"
#include "wx/dir.h"
#include "wx/msgdlg.h"
#include "wx/filename.h"
#include "wx/image.h"
#include "wx/imaglist.h"
#include "wx/bmpcbox.h"
#include "itemcontainer.h"
#include "widgets.h"
#include "icons/bmpcombobox.xpm"
// Images loaded from file are reduced this width and height, if larger
#define IMG_SIZE_TRUNC 256
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
// control ids
enum
{
BitmapComboBoxPage_Reset = wxID_HIGHEST,
BitmapComboBoxPage_Insert,
BitmapComboBoxPage_InsertText,
BitmapComboBoxPage_ChangeHeight,
BitmapComboBoxPage_LoadFromFile,
BitmapComboBoxPage_SetFromFile,
BitmapComboBoxPage_AddWidgetIcons,
BitmapComboBoxPage_AddSeveralWithImages,
BitmapComboBoxPage_AddSeveral,
BitmapComboBoxPage_AddMany,
BitmapComboBoxPage_Clear,
BitmapComboBoxPage_Change,
BitmapComboBoxPage_Delete,
BitmapComboBoxPage_DeleteText,
BitmapComboBoxPage_DeleteSel,
BitmapComboBoxPage_Combo,
BitmapComboBoxPage_ContainerTests
};
// kinds of comboboxes
enum
{
ComboKind_Default,
ComboKind_Simple,
ComboKind_DropDown
};
// ----------------------------------------------------------------------------
// BitmapComboBoxWidgetsPage
// ----------------------------------------------------------------------------
class BitmapComboBoxWidgetsPage : public ItemContainerWidgetsPage
{
public:
BitmapComboBoxWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist);
virtual wxControl *GetWidget() const { return m_combobox; }
virtual wxItemContainer* GetContainer() const { return m_combobox; }
virtual void RecreateWidget() { CreateCombo(); }
// lazy creation of the content
virtual void CreateContent();
protected:
// event handlers
void OnButtonReset(wxCommandEvent& event);
void OnButtonChange(wxCommandEvent& event);
void OnButtonDelete(wxCommandEvent& event);
void OnButtonDeleteSel(wxCommandEvent& event);
void OnButtonClear(wxCommandEvent& event);
void OnButtonInsert(wxCommandEvent &event);
void OnTextChangeHeight(wxCommandEvent& event);
void OnButtonLoadFromFile(wxCommandEvent& event);
void OnButtonSetFromFile(wxCommandEvent& event);
void OnButtonAddSeveral(wxCommandEvent& event);
void OnButtonAddSeveralWithImages(wxCommandEvent& event);
void OnButtonAddWidgetIcons(wxCommandEvent& event);
void OnButtonAddMany(wxCommandEvent& event);
void OnComboBox(wxCommandEvent& event);
void OnDropDown(wxCommandEvent& event);
void OnCloseUp(wxCommandEvent& event);
void OnComboText(wxCommandEvent& event);
void OnCheckOrRadioBox(wxCommandEvent& event);
void OnTextPopupWidth(wxCommandEvent& event);
void OnTextPopupHeight(wxCommandEvent& event);
void OnTextButtonAll(wxCommandEvent& event);
void OnUpdateUIInsert(wxUpdateUIEvent& event);
void OnUpdateUIClearButton(wxUpdateUIEvent& event);
void OnUpdateUIDeleteButton(wxUpdateUIEvent& event);
void OnUpdateUIItemManipulator(wxUpdateUIEvent& event);
void OnUpdateUIResetButton(wxUpdateUIEvent& event);
// reset the bmpcombobox parameters
void Reset();
// (re)create the bmpcombobox
void CreateCombo();
// helpers for creating bitmaps
wxBitmap CreateBitmap(const wxColour& colour);
wxBitmap LoadBitmap(const wxString& filepath);
wxBitmap QueryBitmap(wxString* pStr);
void LoadWidgetImages( wxArrayString* strings, wxImageList* images );
wxSizer *CreateSizerWithSmallTextAndLabel(const wxString& label,
wxWindowID id,
wxTextCtrl **ppText);
#if wxUSE_IMAGE
void RescaleImage(wxImage& image, int w, int h);
#endif
// the controls
// ------------
// the sel mode radiobox
wxRadioBox *m_radioKind;
// the checkboxes for styles
wxCheckBox *m_chkSort,
*m_chkReadonly;
// the combobox itself and the sizer it is in
wxBitmapComboBox *m_combobox;
wxSizer *m_sizerCombo;
// the text entries for "Add/change string" and "Delete" buttons
wxTextCtrl *m_textInsert,
*m_textChangeHeight,
*m_textChange,
*m_textDelete;
private:
DECLARE_EVENT_TABLE()
DECLARE_WIDGETS_PAGE(BitmapComboBoxWidgetsPage)
};
// ----------------------------------------------------------------------------
// event tables
// ----------------------------------------------------------------------------
BEGIN_EVENT_TABLE(BitmapComboBoxWidgetsPage, WidgetsPage)
EVT_BUTTON(BitmapComboBoxPage_Reset, BitmapComboBoxWidgetsPage::OnButtonReset)
EVT_BUTTON(BitmapComboBoxPage_Change, BitmapComboBoxWidgetsPage::OnButtonChange)
EVT_BUTTON(BitmapComboBoxPage_Delete, BitmapComboBoxWidgetsPage::OnButtonDelete)
EVT_BUTTON(BitmapComboBoxPage_DeleteSel, BitmapComboBoxWidgetsPage::OnButtonDeleteSel)
EVT_BUTTON(BitmapComboBoxPage_Clear, BitmapComboBoxWidgetsPage::OnButtonClear)
EVT_BUTTON(BitmapComboBoxPage_Insert, BitmapComboBoxWidgetsPage::OnButtonInsert)
EVT_BUTTON(BitmapComboBoxPage_AddSeveral, BitmapComboBoxWidgetsPage::OnButtonAddSeveral)
EVT_BUTTON(BitmapComboBoxPage_AddSeveralWithImages, BitmapComboBoxWidgetsPage::OnButtonAddSeveralWithImages)
EVT_BUTTON(BitmapComboBoxPage_AddWidgetIcons, BitmapComboBoxWidgetsPage::OnButtonAddWidgetIcons)
EVT_BUTTON(BitmapComboBoxPage_AddMany, BitmapComboBoxWidgetsPage::OnButtonAddMany)
EVT_BUTTON(BitmapComboBoxPage_LoadFromFile, BitmapComboBoxWidgetsPage::OnButtonLoadFromFile)
EVT_BUTTON(BitmapComboBoxPage_SetFromFile, BitmapComboBoxWidgetsPage::OnButtonSetFromFile)
EVT_BUTTON(BitmapComboBoxPage_ContainerTests, ItemContainerWidgetsPage::OnButtonTestItemContainer)
EVT_TEXT_ENTER(BitmapComboBoxPage_InsertText, BitmapComboBoxWidgetsPage::OnButtonInsert)
EVT_TEXT(BitmapComboBoxPage_ChangeHeight, BitmapComboBoxWidgetsPage::OnTextChangeHeight)
EVT_TEXT_ENTER(BitmapComboBoxPage_DeleteText, BitmapComboBoxWidgetsPage::OnButtonDelete)
EVT_UPDATE_UI(BitmapComboBoxPage_Reset, BitmapComboBoxWidgetsPage::OnUpdateUIResetButton)
EVT_UPDATE_UI(BitmapComboBoxPage_Insert, BitmapComboBoxWidgetsPage::OnUpdateUIInsert)
EVT_UPDATE_UI(BitmapComboBoxPage_LoadFromFile, BitmapComboBoxWidgetsPage::OnUpdateUIInsert)
EVT_UPDATE_UI(BitmapComboBoxPage_Clear, BitmapComboBoxWidgetsPage::OnUpdateUIClearButton)
EVT_UPDATE_UI(BitmapComboBoxPage_DeleteText, BitmapComboBoxWidgetsPage::OnUpdateUIClearButton)
EVT_UPDATE_UI(BitmapComboBoxPage_Delete, BitmapComboBoxWidgetsPage::OnUpdateUIDeleteButton)
EVT_UPDATE_UI(BitmapComboBoxPage_Change, BitmapComboBoxWidgetsPage::OnUpdateUIItemManipulator)
EVT_UPDATE_UI(BitmapComboBoxPage_SetFromFile, BitmapComboBoxWidgetsPage::OnUpdateUIItemManipulator)
EVT_UPDATE_UI(BitmapComboBoxPage_DeleteSel, BitmapComboBoxWidgetsPage::OnUpdateUIItemManipulator)
EVT_COMBOBOX_DROPDOWN(BitmapComboBoxPage_Combo, BitmapComboBoxWidgetsPage::OnDropDown)
EVT_COMBOBOX_CLOSEUP(BitmapComboBoxPage_Combo, BitmapComboBoxWidgetsPage::OnCloseUp)
EVT_COMBOBOX(BitmapComboBoxPage_Combo, BitmapComboBoxWidgetsPage::OnComboBox)
EVT_TEXT(BitmapComboBoxPage_Combo, BitmapComboBoxWidgetsPage::OnComboText)
EVT_TEXT_ENTER(BitmapComboBoxPage_Combo, BitmapComboBoxWidgetsPage::OnComboText)
EVT_CHECKBOX(wxID_ANY, BitmapComboBoxWidgetsPage::OnCheckOrRadioBox)
EVT_RADIOBOX(wxID_ANY, BitmapComboBoxWidgetsPage::OnCheckOrRadioBox)
END_EVENT_TABLE()
// ============================================================================
// implementation
// ============================================================================
#if defined(__WXMSW__) || defined(__WXGTK__)
#define NATIVE_OR_GENERIC_CTRLS NATIVE_CTRLS
#else
#define NATIVE_OR_GENERIC_CTRLS GENERIC_CTRLS
#endif
IMPLEMENT_WIDGETS_PAGE(BitmapComboBoxWidgetsPage, wxT("BitmapCombobox"),
NATIVE_OR_GENERIC_CTRLS | WITH_ITEMS_CTRLS | COMBO_CTRLS
);
BitmapComboBoxWidgetsPage::BitmapComboBoxWidgetsPage(WidgetsBookCtrl *book,
wxImageList *imaglist)
: ItemContainerWidgetsPage(book, imaglist, bmpcombobox_xpm)
{
// init everything
m_chkSort =
m_chkReadonly = NULL;
m_combobox = NULL;
m_sizerCombo = NULL;
m_textInsert =
m_textChangeHeight =
m_textChange =
m_textDelete = NULL;
}
// create a sizer containing a label and a small text ctrl
wxSizer *BitmapComboBoxWidgetsPage::CreateSizerWithSmallTextAndLabel(const wxString& label,
wxWindowID id,
wxTextCtrl **ppText)
{
wxControl* control = new wxStaticText(this, wxID_ANY, label);
wxSizer *sizerRow = new wxBoxSizer(wxHORIZONTAL);
wxTextCtrl *text = new wxTextCtrl(this, id, wxEmptyString,
wxDefaultPosition, wxSize(50,wxDefaultCoord), wxTE_PROCESS_ENTER);
sizerRow->Add(control, 0, wxRIGHT | wxALIGN_CENTRE_VERTICAL, 5);
sizerRow->Add(text, 1, wxFIXED_MINSIZE | wxLEFT | wxALIGN_CENTRE_VERTICAL, 5);
if ( ppText )
*ppText = text;
return sizerRow;
}
void BitmapComboBoxWidgetsPage::CreateContent()
{
/*
What we create here is a frame having 3 panes: style pane is the
leftmost one, in the middle the pane with buttons allowing to perform
miscellaneous combobox operations and the pane containing the combobox
itself to the right
*/
wxSizer *sizerRow;
wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
wxSizer *sizerLeft = new wxBoxSizer(wxVERTICAL);
// left pane - style box
wxStaticBox *box = new wxStaticBox(this, wxID_ANY, wxT("&Set style"));
// should be in sync with ComboKind_XXX values
static const wxString kinds[] =
{
wxT("default"),
wxT("simple"),
wxT("drop down"),
};
m_radioKind = new wxRadioBox(this, wxID_ANY, wxT("Combobox &kind:"),
wxDefaultPosition, wxDefaultSize,
WXSIZEOF(kinds), kinds,
1, wxRA_SPECIFY_COLS);
wxSizer *sizerStyle = new wxStaticBoxSizer(box, wxVERTICAL);
m_chkSort = CreateCheckBoxAndAddToSizer(sizerStyle, wxT("&Sort items"));
m_chkReadonly = CreateCheckBoxAndAddToSizer(sizerStyle, wxT("&Read only"));
wxButton *btn = new wxButton(this, BitmapComboBoxPage_Reset, wxT("&Reset"));
sizerStyle->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 3);
sizerLeft->Add(sizerStyle, 0, wxGROW | wxALIGN_CENTRE_HORIZONTAL);
sizerLeft->Add(m_radioKind, 0, wxGROW | wxALL, 5);
// left pane - other options box
box = new wxStaticBox(this, wxID_ANY, wxT("Demo options"));
wxSizer *sizerOptions = new wxStaticBoxSizer(box, wxVERTICAL);
sizerRow = CreateSizerWithSmallTextAndLabel(wxT("Control &height:"),
BitmapComboBoxPage_ChangeHeight,
&m_textChangeHeight);
m_textChangeHeight->SetSize(20, wxDefaultCoord);
sizerOptions->Add(sizerRow, 0, wxALL | wxFIXED_MINSIZE /*| wxGROW*/, 5);
sizerLeft->Add(sizerOptions, 0, wxGROW | wxALIGN_CENTRE_HORIZONTAL | wxTOP, 2);
// middle pane
wxStaticBox *box2 = new wxStaticBox(this, wxID_ANY,
wxT("&Change wxBitmapComboBox contents"));
wxSizer *sizerMiddle = new wxStaticBoxSizer(box2, wxVERTICAL);
btn = new wxButton(this, BitmapComboBoxPage_ContainerTests, wxT("Run &tests"));
sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
#if wxUSE_IMAGE
btn = new wxButton(this, BitmapComboBoxPage_AddWidgetIcons, wxT("Add &widget icons"));
sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
btn = new wxButton(this, BitmapComboBoxPage_LoadFromFile, wxT("Insert image from &file"));
sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
btn = new wxButton(this, BitmapComboBoxPage_SetFromFile, wxT("&Set image from file"));
sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
#endif
btn = new wxButton(this, BitmapComboBoxPage_AddSeveralWithImages, wxT("A&ppend a few strings with images"));
sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
btn = new wxButton(this, BitmapComboBoxPage_AddSeveral, wxT("Append a &few strings"));
sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
btn = new wxButton(this, BitmapComboBoxPage_AddMany, wxT("Append &many strings"));
sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
sizerRow = CreateSizerWithTextAndButton(BitmapComboBoxPage_Delete,
wxT("&Delete this item"),
BitmapComboBoxPage_DeleteText,
&m_textDelete);
sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
btn = new wxButton(this, BitmapComboBoxPage_DeleteSel, wxT("Delete &selection"));
sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
btn = new wxButton(this, BitmapComboBoxPage_Clear, wxT("&Clear"));
sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
#if wxUSE_IMAGE
wxInitAllImageHandlers();
#endif
// right pane
wxSizer *sizerRight = new wxBoxSizer(wxVERTICAL);
m_combobox = new wxBitmapComboBox();
m_combobox->Create(this, BitmapComboBoxPage_Combo, wxEmptyString,
wxDefaultPosition, wxDefaultSize,
0, NULL,
wxCB_READONLY);
#if defined(wxGENERIC_BITMAPCOMBOBOX)
// This will sure make the list look nicer when larger images are used.
m_combobox->SetPopupMaxHeight(600);
#endif
sizerRight->Add(m_combobox, 0, wxGROW | wxALL, 5);
sizerRight->SetMinSize(150, 0);
m_sizerCombo = sizerRight; // save it to modify it later
// the 3 panes panes compose the window
sizerTop->Add(sizerLeft, 0, wxGROW | (wxALL & ~wxLEFT), 10);
sizerTop->Add(sizerMiddle, 5, wxGROW | wxALL, 10);
sizerTop->Add(sizerRight, 4, wxGROW | (wxALL & ~wxRIGHT), 10);
// final initializations
Reset();
SetSizer(sizerTop);
}
// ----------------------------------------------------------------------------
// operations
// ----------------------------------------------------------------------------
void BitmapComboBoxWidgetsPage::Reset()
{
m_chkSort->SetValue(false);
m_chkReadonly->SetValue(true);
}
void BitmapComboBoxWidgetsPage::CreateCombo()
{
int flags = ms_defaultFlags;
if ( m_chkSort->GetValue() )
flags |= wxCB_SORT;
if ( m_chkReadonly->GetValue() )
flags |= wxCB_READONLY;
switch ( m_radioKind->GetSelection() )
{
default:
wxFAIL_MSG( wxT("unknown combo kind") );
// fall through
case ComboKind_Default:
break;
case ComboKind_Simple:
flags |= wxCB_SIMPLE;
break;
case ComboKind_DropDown:
flags = wxCB_DROPDOWN;
break;
}
wxArrayString items;
wxArrayPtrVoid bitmaps;
if ( m_combobox )
{
unsigned int count = m_combobox->GetCount();
for ( unsigned int n = 0; n < count; n++ )
{
items.Add(m_combobox->GetString(n));
wxBitmap bmp = m_combobox->GetItemBitmap(n);
bitmaps.Add(new wxBitmap(bmp));
}
m_sizerCombo->Detach( m_combobox );
delete m_combobox;
}
m_combobox = new wxBitmapComboBox();
m_combobox->Create(this, BitmapComboBoxPage_Combo, wxEmptyString,
wxDefaultPosition, wxDefaultSize,
0, NULL,
flags);
#if defined(wxGENERIC_BITMAPCOMBOBOX)
// This will sure make the list look nicer when larger images are used.
m_combobox->SetPopupMaxHeight(600);
#endif
unsigned int count = items.GetCount();
for ( unsigned int n = 0; n < count; n++ )
{
wxBitmap* bmp = (wxBitmap*) bitmaps[n];
m_combobox->Append(items[n], *bmp);
delete bmp;
}
m_sizerCombo->Add(m_combobox, 0, wxGROW | wxALL, 5);
m_sizerCombo->Layout();
// Allow changing height in order to demonstrate flexible
// size of image "thumbnail" painted in the control itself.
long h = 0;
m_textChangeHeight->GetValue().ToLong(&h);
if ( h >= 5 )
m_combobox->SetSize(wxDefaultCoord, h);
}
// ----------------------------------------------------------------------------
// event handlers
// ----------------------------------------------------------------------------
void BitmapComboBoxWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
{
Reset();
CreateCombo();
}
void BitmapComboBoxWidgetsPage::OnButtonChange(wxCommandEvent& WXUNUSED(event))
{
int sel = m_combobox->GetSelection();
if ( sel != wxNOT_FOUND )
{
#ifndef __WXGTK__
m_combobox->SetString(sel, m_textChange->GetValue());
#else
wxLogMessage(wxT("Not implemented in wxGTK"));
#endif
}
}
void BitmapComboBoxWidgetsPage::OnButtonDelete(wxCommandEvent& WXUNUSED(event))
{
unsigned long n;
if ( !m_textDelete->GetValue().ToULong(&n) ||
(n >= m_combobox->GetCount()) )
{
return;
}
m_combobox->Delete(n);
}
void BitmapComboBoxWidgetsPage::OnButtonDeleteSel(wxCommandEvent& WXUNUSED(event))
{
int sel = m_combobox->GetSelection();
if ( sel != wxNOT_FOUND )
{
m_combobox->Delete(sel);
}
}
void BitmapComboBoxWidgetsPage::OnButtonClear(wxCommandEvent& WXUNUSED(event))
{
m_combobox->Clear();
}
void BitmapComboBoxWidgetsPage::OnButtonInsert(wxCommandEvent& WXUNUSED(event))
{
static unsigned int s_item = 0;
wxString s = m_textInsert->GetValue();
if ( !m_textInsert->IsModified() )
{
// update the default string
m_textInsert->SetValue(wxString::Format(wxT("test item %u"), ++s_item));
}
int sel = m_combobox->GetSelection();
if ( sel == wxNOT_FOUND )
sel = m_combobox->GetCount();
m_combobox->Insert(s, wxNullBitmap, m_combobox->GetSelection());
}
void BitmapComboBoxWidgetsPage::OnTextChangeHeight(wxCommandEvent& WXUNUSED(event))
{
long h = 0;
if ( m_textChangeHeight )
m_textChangeHeight->GetValue().ToLong(&h);
if ( h < 5 )
return;
m_combobox->SetSize(wxDefaultCoord, h);
}
void BitmapComboBoxWidgetsPage::OnButtonLoadFromFile(wxCommandEvent& WXUNUSED(event))
{
wxString s;
int sel = m_combobox->GetSelection();
if ( sel == wxNOT_FOUND )
sel = m_combobox->GetCount();
wxBitmap bmp = QueryBitmap(&s);
if (bmp.IsOk())
m_combobox->Insert(s, bmp, sel);
}
void BitmapComboBoxWidgetsPage::OnButtonSetFromFile(wxCommandEvent& WXUNUSED(event))
{
wxBitmap bmp = QueryBitmap(NULL);
if (bmp.IsOk())
m_combobox->SetItemBitmap(m_combobox->GetSelection(), bmp);
}
void BitmapComboBoxWidgetsPage::OnButtonAddMany(wxCommandEvent& WXUNUSED(event))
{
// "many" means 1000 here
for ( unsigned int n = 0; n < 1000; n++ )
{
m_combobox->Append(wxString::Format(wxT("item #%u"), n));
}
}
void BitmapComboBoxWidgetsPage::OnButtonAddSeveral(wxCommandEvent& WXUNUSED(event))
{
m_combobox->Append(wxT("First"));
m_combobox->Append(wxT("another one"));
m_combobox->Append(wxT("and the last (very very very very very very very very very very long) one"));
}
void BitmapComboBoxWidgetsPage::OnButtonAddSeveralWithImages(wxCommandEvent& WXUNUSED(event))
{
static const struct TestEntry
{
const char *text;
unsigned long rgb;
} s_entries[] =
{
{ "Red circle", 0x0000ff },
{ "Blue circle", 0xff0000 },
{ "Green circle", 0x00ff00 },
{ "Black circle", 0x000000 },
};
for ( unsigned i = 0; i < WXSIZEOF(s_entries); i++ )
{
const TestEntry& e = s_entries[i];
m_combobox->Append(e.text, CreateBitmap(wxColour(e.rgb)));
}
}
#if wxUSE_IMAGE
void BitmapComboBoxWidgetsPage::RescaleImage(wxImage& image, int w, int h)
{
if ( image.GetWidth() == w && image.GetHeight() == h )
return;
if ( w <= 0 || h <= 0 )
return;
static bool isFirstScale = true;
if ( isFirstScale && m_combobox->GetCount() > 0 )
{
wxMessageBox( wxT("wxBitmapComboBox normally only supports images of one size. ")
wxT("However, for demonstration purposes, loaded bitmaps are scaled to fit ")
wxT("using wxImage::Rescale."),
wxT("Notice"),
wxOK,
this );
isFirstScale = false;
}
image.Rescale(w, h);
}
#endif
void BitmapComboBoxWidgetsPage::LoadWidgetImages( wxArrayString* strings, wxImageList* images )
{
wxFileName fn;
fn.AssignCwd();
fn.AppendDir(wxT("icons"));
wxSetCursor(*wxHOURGLASS_CURSOR);
if ( !wxDir::Exists(fn.GetFullPath()) ||
!wxDir::GetAllFiles(fn.GetFullPath(),strings,wxT("*.xpm")) )
{
// Try ../../samples/widgets/icons
fn.RemoveLastDir();
fn.RemoveLastDir();
fn.AppendDir(wxT("icons"));
if ( !wxDir::Exists(fn.GetFullPath()) ||
!wxDir::GetAllFiles(fn.GetFullPath(),strings,wxT("*.xpm")) )
{
// Try ../../../samples/widgets/icons
fn.AssignCwd();
fn.RemoveLastDir();
fn.RemoveLastDir();
fn.RemoveLastDir();
fn.AppendDir(wxT("samples"));
fn.AppendDir(wxT("widgets"));
fn.AppendDir(wxT("icons"));
if ( !wxDir::Exists(fn.GetFullPath()) ||
!wxDir::GetAllFiles(fn.GetFullPath(),strings,wxT("*.xpm")) )
{
wxLogWarning(wxT("Could not load widget icons."));
wxSetCursor(*wxSTANDARD_CURSOR);
return;
}
}
}
unsigned int i;
// Get size of existing images in list
wxSize foundSize = m_combobox->GetBitmapSize();
for ( i=0; i<strings->size(); i++ )
{
fn.SetFullName((*strings)[i]);
wxString name = fn.GetName();
// Handle few exceptions
if ( name == wxT("bmpbtn") )
{
strings->RemoveAt(i);
i--;
}
else
{
#if wxUSE_IMAGE
wxASSERT(fn.FileExists());
wxImage image(fn.GetFullPath());
wxASSERT(image.IsOk());
RescaleImage(image, foundSize.x, foundSize.y);
wxBitmap bmp(image);
wxASSERT( bmp.IsOk() );
#else
wxBitmap bmp(wxNullBitmap);
#endif
images->Add(bmp);
(*strings)[i] = name;
// if the combobox is empty, use as bitmap size of the image list
// the size of the first valid image loaded
if (foundSize == wxDefaultSize)
foundSize = bmp.GetSize();
}
}
wxSetCursor(*wxSTANDARD_CURSOR);
}
void BitmapComboBoxWidgetsPage::OnButtonAddWidgetIcons(wxCommandEvent& WXUNUSED(event))
{
wxArrayString strings;
wxSize sz = m_combobox->GetBitmapSize();
if ( sz.x <= 0 )
{
sz.x = 32;
sz.y = 32;
}
wxImageList images(sz.x, sz.y);
LoadWidgetImages(&strings, &images);
unsigned int i;
for ( i=0; i<strings.size(); i++ )
{
m_combobox->Append(strings[i], images.GetBitmap(i));
}
}
void BitmapComboBoxWidgetsPage::OnUpdateUIResetButton(wxUpdateUIEvent& event)
{
if (m_combobox)
event.Enable( m_chkSort->GetValue() || m_chkReadonly->GetValue() );
}
void BitmapComboBoxWidgetsPage::OnUpdateUIInsert(wxUpdateUIEvent& event)
{
if (m_combobox)
{
bool enable = !(m_combobox->GetWindowStyle() & wxCB_SORT);
event.Enable(enable);
}
}
void BitmapComboBoxWidgetsPage::OnUpdateUIDeleteButton(wxUpdateUIEvent& event)
{
if (m_combobox)
{
unsigned long n;
event.Enable(m_textDelete->GetValue().ToULong(&n) &&
(n < (unsigned)m_combobox->GetCount()));
}
}
void BitmapComboBoxWidgetsPage::OnUpdateUIItemManipulator(wxUpdateUIEvent& event)
{
if (m_combobox)
event.Enable(m_combobox->GetSelection() != wxNOT_FOUND);
}
void BitmapComboBoxWidgetsPage::OnUpdateUIClearButton(wxUpdateUIEvent& event)
{
if (m_combobox)
event.Enable(m_combobox->GetCount() != 0);
}
void BitmapComboBoxWidgetsPage::OnComboText(wxCommandEvent& event)
{
if (!m_combobox)
return;
wxString s = event.GetString();
wxASSERT_MSG( s == m_combobox->GetValue(),
wxT("event and combobox values should be the same") );
if (event.GetEventType() == wxEVT_TEXT_ENTER)
{
wxLogMessage(wxT("BitmapCombobox enter pressed (now '%s')"), s.c_str());
}
else
{
wxLogMessage(wxT("BitmapCombobox text changed (now '%s')"), s.c_str());
}
}
void BitmapComboBoxWidgetsPage::OnComboBox(wxCommandEvent& event)
{
long sel = event.GetInt();
m_textDelete->SetValue(wxString::Format(wxT("%ld"), sel));
wxLogMessage(wxT("BitmapCombobox item %ld selected"), sel);
wxLogMessage(wxT("BitmapCombobox GetValue(): %s"), m_combobox->GetValue().c_str() );
}
void BitmapComboBoxWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& WXUNUSED(event))
{
CreateCombo();
}
#if wxUSE_IMAGE
wxBitmap BitmapComboBoxWidgetsPage::LoadBitmap(const wxString& filepath)
{
// Get size of existing images in list
wxSize foundSize = m_combobox->GetBitmapSize();
// Have some reasonable maximum size
if ( foundSize.x <= 0 )
{
foundSize.x = IMG_SIZE_TRUNC;
foundSize.y = IMG_SIZE_TRUNC;
}
wxImage image(filepath);
if ( image.IsOk() )
{
// Rescale very large images
int ow = image.GetWidth();
int oh = image.GetHeight();
if ( foundSize.x > 0 &&
(ow != foundSize.x || oh != foundSize.y) )
{
int w = ow;
if ( w > foundSize.x )
w = foundSize.x;
int h = oh;
if ( h > foundSize.y )
h = foundSize.y;
RescaleImage(image, w, h);
}
return wxBitmap(image);
}
return wxNullBitmap;
}
#else
wxBitmap BitmapComboBoxWidgetsPage::LoadBitmap(const wxString& WXUNUSED(filepath))
{
return wxNullBitmap;
}
#endif
wxBitmap BitmapComboBoxWidgetsPage::QueryBitmap(wxString* pStr)
{
wxString filepath = wxLoadFileSelector(wxT("image"),
wxEmptyString,
wxEmptyString,
this);
wxBitmap bitmap;
::wxSetCursor( *wxHOURGLASS_CURSOR );
if ( !filepath.empty() )
{
if ( pStr )
{
*pStr = wxFileName(filepath).GetName();
}
bitmap = LoadBitmap(filepath);
}
if (bitmap.IsOk())
{
wxLogDebug(wxT("%i, %i"),bitmap.GetWidth(), bitmap.GetHeight());
}
::wxSetCursor( *wxSTANDARD_CURSOR );
return bitmap;
}
wxBitmap BitmapComboBoxWidgetsPage::CreateBitmap(const wxColour& colour)
{
const int w = 10,
h = 10;
wxMemoryDC dc;
wxBitmap bmp(w, h);
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, w, h);
// Draw image content
dc.SetBrush(wxBrush(colour));
dc.DrawCircle(h/2, h/2+1, h/2);
dc.SelectObject(wxNullBitmap);
// Finalize transparency with a mask
wxMask *mask = new wxMask(bmp, magic);
bmp.SetMask(mask);
return bmp;
}
void BitmapComboBoxWidgetsPage::OnDropDown(wxCommandEvent& WXUNUSED(event))
{
wxLogMessage(wxT("Combobox dropped down"));
}
void BitmapComboBoxWidgetsPage::OnCloseUp(wxCommandEvent& WXUNUSED(event))
{
wxLogMessage(wxT("Combobox closed up"));
}
#endif // wxUSE_BITMAPCOMBOBOX