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The icons are embedded as PNG images directly in the source code to avoid the need for installing them. This does make the library larger though so provide a wxUSE_ARTPROVIDER_TANGO option to turn the new code and associated bloat off. Also turn it off by default under wxGTK as the native art provider is used there anyhow. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@66505 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
328 lines
12 KiB
C++
328 lines
12 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: src/common/arttango.cpp
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// Purpose: art provider using embedded PNG versions of Tango icons
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// Author: Vadim Zeitlin
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// Created: 2010-12-27
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// RCS-ID: $Id: wxhead.cpp,v 1.11 2010-04-22 12:44:51 zeitlin Exp $
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// Copyright: (c) 2010 Vadim Zeitlin <vadim@wxwidgets.org>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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// ============================================================================
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// declarations
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// ============================================================================
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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// for compilers that support precompilation, includes "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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#if wxUSE_ARTPROVIDER_TANGO
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#ifndef WX_PRECOMP
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#include "wx/image.h"
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#endif // WX_PRECOMP
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#include "wx/artprov.h"
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#include "wx/mstream.h"
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// ----------------------------------------------------------------------------
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// image data
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// ----------------------------------------------------------------------------
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// All files in art/tango in alphabetical order:
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#include "../../art/tango/application_x_executable.h"
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#include "../../art/tango/dialog_error.h"
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#include "../../art/tango/dialog_information.h"
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#include "../../art/tango/dialog_warning.h"
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#include "../../art/tango/document_new.h"
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#include "../../art/tango/document_open.h"
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#include "../../art/tango/document_print.h"
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#include "../../art/tango/document_save.h"
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#include "../../art/tango/document_save_as.h"
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#include "../../art/tango/drive_harddisk.h"
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#include "../../art/tango/drive_optical.h"
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#include "../../art/tango/drive_removable_media.h"
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#include "../../art/tango/edit_copy.h"
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#include "../../art/tango/edit_cut.h"
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#include "../../art/tango/edit_delete.h"
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#include "../../art/tango/edit_find.h"
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#include "../../art/tango/edit_find_replace.h"
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#include "../../art/tango/edit_paste.h"
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#include "../../art/tango/edit_redo.h"
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#include "../../art/tango/edit_undo.h"
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#include "../../art/tango/folder.h"
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#include "../../art/tango/folder_new.h"
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#include "../../art/tango/folder_open.h"
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#include "../../art/tango/go_down.h"
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#include "../../art/tango/go_first.h"
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#include "../../art/tango/go_home.h"
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#include "../../art/tango/go_last.h"
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#include "../../art/tango/go_next.h"
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#include "../../art/tango/go_previous.h"
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#include "../../art/tango/go_up.h"
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#include "../../art/tango/image_missing.h"
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#include "../../art/tango/text_x_generic.h"
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#include "../../art/tango/list_add.h"
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#include "../../art/tango/list_remove.h"
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// ----------------------------------------------------------------------------
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// art provider class
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// ----------------------------------------------------------------------------
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namespace
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{
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class wxTangoArtProvider : public wxArtProvider
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{
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public:
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wxTangoArtProvider()
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{
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m_imageHandledAdded = false;
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}
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protected:
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virtual wxBitmap CreateBitmap(const wxArtID& id,
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const wxArtClient& client,
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const wxSize& size);
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private:
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bool m_imageHandledAdded;
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wxDECLARE_NO_COPY_CLASS(wxTangoArtProvider);
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};
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} // anonymous namespace
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// ============================================================================
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// implementation
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// ============================================================================
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wxBitmap
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wxTangoArtProvider::CreateBitmap(const wxArtID& id,
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const wxArtClient& client,
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const wxSize& sizeHint)
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{
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// Array indexed by the id names with pointers to image data in 16 and 32
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// pixel sizes as values. The order of the elements in this array is the
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// same as the definition order in wx/artprov.h. While it's not very
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// logical, this should make it simpler to add new icons later. Notice that
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// most elements without Tango equivalents are simply omitted.
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// To avoid repetition use BITMAP_DATA to only specify the image name once
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// (this is especially important if we decide to add more image sizes
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// later).
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#define BITMAP_ARRAY_NAME(name, size) \
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name ## _ ## size ## x ## size ## _png
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#define BITMAP_DATA_FOR_SIZE(name, size) \
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BITMAP_ARRAY_NAME(name, size), sizeof(BITMAP_ARRAY_NAME(name, size))
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#define BITMAP_DATA(name) \
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BITMAP_DATA_FOR_SIZE(name, 16), BITMAP_DATA_FOR_SIZE(name, 24)
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static const struct BitmapEntry
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{
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const char *id;
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const unsigned char *data16;
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size_t len16;
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const unsigned char *data24;
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size_t len24;
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} s_allBitmaps[] =
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{
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// Tango does have bookmark-new but no matching bookmark-delete and
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// using mismatching icons would be ugly so we don't provide this one
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// neither, we should add both of them if Tango ever adds the other one.
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//{ wxART_ADD_BOOKMARK, BITMAP_DATA(bookmark_new)},
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//{ wxART_DEL_BOOKMARK, BITMAP_DATA() },
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{ wxART_GO_BACK, BITMAP_DATA(go_previous) },
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{ wxART_GO_FORWARD, BITMAP_DATA(go_next) },
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{ wxART_GO_UP, BITMAP_DATA(go_up) },
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{ wxART_GO_DOWN, BITMAP_DATA(go_down) },
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// wxART_GO_TO_PARENT doesn't seem to exist in Tango
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{ wxART_GO_HOME, BITMAP_DATA(go_home) },
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{ wxART_GOTO_FIRST, BITMAP_DATA(go_first) },
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{ wxART_GOTO_LAST, BITMAP_DATA(go_last) },
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{ wxART_FILE_OPEN, BITMAP_DATA(document_open) },
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{ wxART_FILE_SAVE, BITMAP_DATA(document_save) },
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{ wxART_FILE_SAVE_AS, BITMAP_DATA(document_save_as) },
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{ wxART_PRINT, BITMAP_DATA(document_print) },
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// Should we use help-browser for wxART_HELP?
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{ wxART_NEW_DIR, BITMAP_DATA(folder_new) },
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{ wxART_HARDDISK, BITMAP_DATA(drive_harddisk) },
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// drive-removable-media seems to be better than media-floppy
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{ wxART_FLOPPY, BITMAP_DATA(drive_removable_media) },
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{ wxART_CDROM, BITMAP_DATA(drive_optical) },
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{ wxART_REMOVABLE, BITMAP_DATA(drive_removable_media) },
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{ wxART_FOLDER, BITMAP_DATA(folder) },
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{ wxART_FOLDER_OPEN, BITMAP_DATA(folder_open) },
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// wxART_GO_DIR_UP doesn't seem to exist in Tango
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{ wxART_EXECUTABLE_FILE, BITMAP_DATA(application_x_executable) },
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{ wxART_NORMAL_FILE, BITMAP_DATA(text_x_generic) },
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// There is no dialog-question in Tango so use the information icon
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// too, this is better for consistency and we do have a precedent for
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// doing this as Windows Vista/7 does the same thing natively.
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{ wxART_ERROR, BITMAP_DATA(dialog_error) },
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{ wxART_QUESTION, BITMAP_DATA(dialog_information) },
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{ wxART_WARNING, BITMAP_DATA(dialog_warning) },
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{ wxART_INFORMATION, BITMAP_DATA(dialog_information) },
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{ wxART_MISSING_IMAGE, BITMAP_DATA(image_missing) },
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{ wxART_COPY, BITMAP_DATA(edit_copy) },
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{ wxART_CUT, BITMAP_DATA(edit_cut) },
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{ wxART_PASTE, BITMAP_DATA(edit_paste) },
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{ wxART_DELETE, BITMAP_DATA(edit_delete) },
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{ wxART_NEW, BITMAP_DATA(document_new) },
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{ wxART_UNDO, BITMAP_DATA(edit_undo) },
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{ wxART_REDO, BITMAP_DATA(edit_redo) },
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{ wxART_PLUS, BITMAP_DATA(list_add) },
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{ wxART_MINUS, BITMAP_DATA(list_remove) },
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// Surprisingly Tango doesn't seem to have neither wxART_CLOSE nor
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// wxART_QUIT. We could use system-log-out for the latter but it
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// doesn't seem quite right.
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{ wxART_FIND, BITMAP_DATA(edit_find) },
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{ wxART_FIND_AND_REPLACE, BITMAP_DATA(edit_find_replace) },
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};
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#undef BITMAP_ARRAY_NAME
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#undef BITMAP_DATA_FOR_SIZE
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#undef BITMAP_DATA
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for ( unsigned n = 0; n < WXSIZEOF(s_allBitmaps); n++ )
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{
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const BitmapEntry& entry = s_allBitmaps[n];
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if ( entry.id != id )
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continue;
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// This is one of the bitmaps that we have, determine in which size we
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// should return it.
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wxSize size;
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bool sizeIsAHint;
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if ( sizeHint == wxDefaultSize )
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{
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// Use the normal platform-specific icon size.
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size = GetNativeSizeHint(client);
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if ( size == wxDefaultSize )
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{
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// If we failed to get it, determine the best size more or less
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// arbitrarily. This definitely won't look good but then it
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// shouldn't normally happen, all platforms should implement
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// GetNativeSizeHint() properly.
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if ( client == wxART_MENU || client == wxART_BUTTON )
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size = wxSize(16, 16);
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else
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size = wxSize(24, 24);
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}
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// We should return the icon of exactly this size so it's more than
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// just a hint.
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sizeIsAHint = false;
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}
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else // We have a size hint
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{
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// Use it for determining the version of the icon to return.
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size = sizeHint;
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// But we don't need to return the image of exactly the same size
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// as the hint, after all it's just that, a hint.
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sizeIsAHint = true;
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}
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enum
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{
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TangoSize_16,
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TangoSize_24
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} tangoSize;
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// We prefer to downscale the image rather than upscale it if possible
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// so use the smaller one if we can, otherwise the large one.
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if ( size.x <= 16 && size.y <= 16 )
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tangoSize = TangoSize_16;
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else
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tangoSize = TangoSize_24;
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const unsigned char *data;
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size_t len;
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switch ( tangoSize )
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{
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default:
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wxFAIL_MSG( "Unsupported Tango bitmap size" );
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// fall through
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case TangoSize_16:
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data = entry.data16;
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len = entry.len16;
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break;
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case TangoSize_24:
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data = entry.data24;
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len = entry.len24;
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break;
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}
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wxMemoryInputStream is(data, len);
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// Before reading the image data from the stream for the first time,
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// add the handler for PNG images: we do it here and not in, say,
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// InitTangoProvider() to do it as lately as possible and so to avoid
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// the asserts about adding an already added handler if the user code
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// adds the handler itself.
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if ( !m_imageHandledAdded )
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{
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// Of course, if the user code did add it already, we have nothing
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// to do.
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if ( !wxImage::FindHandler(wxBITMAP_TYPE_PNG) )
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wxImage::AddHandler(new wxPNGHandler);
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// In any case, no need to do it again.
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m_imageHandledAdded = true;
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}
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wxImage image(is, wxBITMAP_TYPE_PNG);
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if ( !image.IsOk() )
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{
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// This should normally never happen as all the embedded images are
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// well-formed.
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wxLogDebug("Failed to load embedded PNG image for \"%s\"", id);
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return wxNullBitmap;
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}
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if ( !sizeIsAHint )
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{
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// Notice that this won't do anything if the size is already right.
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image.Rescale(size.x, size.y, wxIMAGE_QUALITY_HIGH);
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}
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return image;
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}
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// Not one of the bitmaps that we support.
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return wxNullBitmap;
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}
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/* static */
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void wxArtProvider::InitTangoProvider()
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{
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wxArtProvider::Push(new wxTangoArtProvider);
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}
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#endif // wxUSE_ARTPROVIDER_TANGO
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