svx/source/dialog/hexcolorcontrol.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <sax/tools/converter.hxx>
  21 #include <svx/hexcolorcontrol.hxx>
  22 #include <rtl/character.hxx>
  23 #include <vcl/svapp.hxx>
  24 #include <vcl/weld.hxx>
  25
  26 namespace weld
  27 {
  28 HexColorControl::HexColorControl(std::unique_ptr<weld::Entry> pEntry)
  29     : m_xEntry(std::move(pEntry))
  30     , m_nAsyncModifyEvent(nullptr)
  31 {
  32     m_xEntry->set_max_length(6);
  33     m_xEntry->set_width_chars(6);
  34     m_xEntry->connect_insert_text(LINK(this, HexColorControl, ImplProcessInputHdl));
  35     m_xEntry->connect_changed(LINK(this, HexColorControl, ImplProcessModifyHdl));
  36 }
  37
  38 HexColorControl::~HexColorControl()
  39 {
  40     if (m_nAsyncModifyEvent)
  41         Application::RemoveUserEvent(m_nAsyncModifyEvent);
  42 }
  43
  44 IMPL_LINK_NOARG(HexColorControl, OnAsyncModifyHdl, void*, void)
  45 {
  46     m_nAsyncModifyEvent = nullptr;
  47     m_aModifyHdl.Call(*m_xEntry);
  48 }
  49
  50 // tdf#123291 resend it async so it arrives after ImplProcessInputHdl has been
  51 // processed
  52 IMPL_LINK_NOARG(HexColorControl, ImplProcessModifyHdl, weld::Entry&, void)
  53 {
  54     if (m_nAsyncModifyEvent)
  55         Application::RemoveUserEvent(m_nAsyncModifyEvent);
  56     m_nAsyncModifyEvent = Application::PostUserEvent(LINK(this, HexColorControl, OnAsyncModifyHdl));
  57 }
  58
  59 void HexColorControl::SetColor(Color nColor)
  60 {
  61     OUStringBuffer aBuffer;
  62     sax::Converter::convertColor(aBuffer, nColor);
  63     OUString sColor = aBuffer.makeStringAndClear().copy(1);
  64     if (sColor == m_xEntry->get_text())
  65         return;
  66     int nStartPos, nEndPos;
  67     m_xEntry->get_selection_bounds(nStartPos, nEndPos);
  68     m_xEntry->set_text(sColor);
  69     m_xEntry->select_region(nStartPos, nEndPos);
  70 }
  71
  72 Color HexColorControl::GetColor() const
  73 {
  74     sal_Int32 nColor = -1;
  75
  76     OUString aStr = "#" + m_xEntry->get_text();
  77     sal_Int32 nLen = aStr.getLength();
  78
  79     if (nLen < 7)
  80     {
  81         static const char* const pNullStr = "000000";
  82         aStr += OUString::createFromAscii(&pNullStr[nLen - 1]);
  83     }
  84
  85     sax::Converter::convertColor(nColor, aStr);
  86
  87     m_xEntry->set_message_type(nColor != -1 ? weld::EntryMessageType::Normal
  88                                             : weld::EntryMessageType::Error);
  89
  90     return Color(ColorTransparency, nColor);
  91 }
  92
  93 IMPL_STATIC_LINK(HexColorControl, ImplProcessInputHdl, OUString&, rTest, bool)
  94 {
  95     const sal_Unicode* pTest = rTest.getStr();
  96     sal_Int32 nLen = rTest.getLength();
  97
  98     OUStringBuffer aFilter(nLen);
  99     for (sal_Int32 i = 0; i < nLen; ++i)
 100     {
 101         if (rtl::isAsciiHexDigit(*pTest))
 102             aFilter.append(*pTest);
 103         ++pTest;
 104     }
 105
 106     rTest = aFilter.makeStringAndClear();
 107     return true;
 108 }
 109 }
 110
 111 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */