1 /* 2 * Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public License 15 * along with this library; see the file COPYING.LIB. If not, write to 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 * 19 */ 20 21 #ifndef RenderMeter_h 22 #define RenderMeter_h 23 24 #if ENABLE(METER_TAG) 25 #include "RenderBlock.h" 26 #include "RenderWidget.h" 27 28 29 namespace WebCore { 30 31 class HTMLMeterElement; 32 33 class RenderMeter : public RenderBlock { 34 public: 35 RenderMeter(HTMLMeterElement*); 36 virtual ~RenderMeter(); 37 38 private: 39 virtual void computeLogicalWidth(); 40 virtual void computeLogicalHeight(); 41 42 virtual const char* renderName() const { return "RenderMeter"; } 43 virtual bool isMeter() const { return true; } 44 virtual bool requiresForcedStyleRecalcPropagation() const { return true; } 45 virtual bool canHaveChildren() const { return false; } 46 47 double valueRatio() const; 48 }; 49 50 inline RenderMeter* toRenderMeter(RenderObject* object) 51 { 52 ASSERT(!object || object->isMeter()); 53 return static_cast<RenderMeter*>(object); 54 } 55 56 // This will catch anyone doing an unnecessary cast. 57 void toRenderMeter(const RenderMeter*); 58 59 } // namespace WebCore 60 61 #endif 62 63 #endif // RenderMeter_h 64 65
