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00001 /******************************************************************************** 00002 * * 00003 * S c r o l l i n g M e n u P a n e W i d g e t * 00004 * * 00005 ********************************************************************************* 00006 * Copyright (C) 1997,2009 by Jeroen van der Zijp. All Rights Reserved. * 00007 ********************************************************************************* 00008 * This library is free software; you can redistribute it and/or modify * 00009 * it under the terms of the GNU Lesser General Public License as published by * 00010 * the Free Software Foundation; either version 3 of the License, or * 00011 * (at your option) any later version. * 00012 * * 00013 * This library is distributed in the hope that it will be useful, * 00014 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * 00016 * GNU Lesser General Public License for more details. * 00017 * * 00018 * You should have received a copy of the GNU Lesser General Public License * 00019 * along with this program. If not, see <http://www.gnu.org/licenses/> * 00020 ********************************************************************************* 00021 * $Id: FXScrollPane.h,v 1.15 2009/01/06 13:07:27 fox Exp $ * 00022 ********************************************************************************/ 00023 #ifndef FXSCROLLPANE_H 00024 #define FXSCROLLPANE_H 00025 00026 #ifndef FXMENUPANE_H 00027 #include "FXMenuPane.h" 00028 #endif 00029 00030 namespace FX { 00031 00032 class FXArrowButton; 00033 00034 /** 00035 * A Scroll Pane is a menu pane which provides scrolling of menu entries. 00036 * It is useful when menus are populated programmatically and it is not 00037 * known in advance how many entries will be added. 00038 */ 00039 class FXAPI FXScrollPane : public FXMenuPane { 00040 FXDECLARE(FXScrollPane) 00041 protected: 00042 FXArrowButton *dn; // Button to scroll down 00043 FXArrowButton *up; // Button to scroll up 00044 FXint visible; // Visible entries 00045 FXint top; // Top visible entry 00046 protected: 00047 FXScrollPane(); 00048 private: 00049 FXScrollPane(const FXScrollPane&); 00050 FXScrollPane &operator=(const FXScrollPane&); 00051 public: 00052 long onCmdIncrement(FXObject*,FXSelector,void*); 00053 long onCmdDecrement(FXObject*,FXSelector,void*); 00054 public: 00055 enum { 00056 ID_SCROLL_DN=FXMenuPane::ID_LAST, 00057 ID_SCROLL_UP, 00058 ID_LAST 00059 }; 00060 public: 00061 00062 /// Construct menu pane 00063 FXScrollPane(FXWindow* owner,FXint nvis,FXuint opts=0); 00064 00065 /// Return the default width of this window 00066 virtual FXint getDefaultWidth(); 00067 00068 /// Return the default height of this window 00069 virtual FXint getDefaultHeight(); 00070 00071 /// Show this window 00072 virtual void show(); 00073 00074 /// Perform layout 00075 virtual void layout(); 00076 00077 /// Return number of visible items 00078 FXint getNumVisible() const { return visible; } 00079 00080 /// Change the number of visible items 00081 void setNumVisible(FXint nvis); 00082 00083 /// Get index of top most menu item 00084 FXint getTopItem() const { return top; } 00085 00086 /// Scroll item to top 00087 void setTopItem(FXint t); 00088 00089 /// Destroy 00090 virtual ~FXScrollPane(); 00091 }; 00092 00093 } 00094 00095 #endif
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