LayerManagerCommands/src/LayerSetOpacityCommand.cpp

   1 /***************************************************************************
   2 *
   3 * Copyright 2010,2011 BMW Car IT GmbH
   4 *
   5 *
   6 * Licensed under the Apache License, Version 2.0 (the "License");
   7 * you may not use this file except in compliance with the License.
   8 * You may obtain a copy of the License at
   9 *
  10 *        http://www.apache.org/licenses/LICENSE-2.0
  11 *
  12 * Unless required by applicable law or agreed to in writing, software
  13 * distributed under the License is distributed on an "AS IS" BASIS,
  14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15 * See the License for the specific language governing permissions and
  16 * limitations under the License.
  17 *
  18 ****************************************************************************/
  19 #include "LayerSetOpacityCommand.h"
  20 #include "ICommandExecutor.h"
  21 #include "Scene.h"
  22 #include "Log.h"
  23
  24 ExecutionResult LayerSetOpacityCommand::execute(ICommandExecutor* executor)
  25 {
  26     Scene& scene = *(executor->getScene());
  27
  28     ExecutionResult result = ExecutionFailed;
  29
  30     Layer* layer = scene.getLayer(m_id);
  31
  32     if (layer)
  33     {
  34         LOG_DEBUG("LayerSetOpacityCommand","new opacity " << m_opacity << " for id: " << m_id);
  35         if (layer->setOpacity(m_opacity))
  36         {
  37             result = ExecutionSuccessRedraw;
  38             executor->addClientNotification(layer, ILM_NOTIFICATION_OPACITY);
  39         }
  40         else
  41         {
  42             result = ExecutionSuccess;
  43         }
  44     }
  45
  46     return result;
  47 }
  48
  49 const std::string LayerSetOpacityCommand::getString()
  50 {
  51     std::stringstream description;
  52     description << "LayerSetOpacityCommand("
  53                 << "id=" << m_id << "(0x" << std::hex << m_id << ")" << std::dec
  54                 << ", opacity=" << m_opacity
  55                 << ")";
  56     return description.str();
  57 }