FXLabel.h

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/********************************************************************************
*                                                                               *
*                            L a b e l   W i d g e t                            *
*                                                                               *
*********************************************************************************
* Copyright (C) 1998,2008 by Jeroen van der Zijp.   All Rights Reserved.        *
*********************************************************************************
* This library is free software; you can redistribute it and/or modify          *
* it under the terms of the GNU Lesser General Public License as published by   *
* the Free Software Foundation; either version 3 of the License, or             *
* (at your option) any later version.                                           *
*                                                                               *
* This library is distributed in the hope that it will be useful,               *
* but WITHOUT ANY WARRANTY; without even the implied warranty of                *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                 *
* GNU Lesser General Public License for more details.                           *
*                                                                               *
* You should have received a copy of the GNU Lesser General Public License      *
* along with this program.  If not, see <http://www.gnu.org/licenses/>          *
*********************************************************************************
* $Id: FXLabel.h,v 1.34 2008/01/04 15:18:20 fox Exp $                           *
********************************************************************************/
#ifndef FXLABEL_H
#define FXLABEL_H

#ifndef FXFRAME_H
#include "FXFrame.h"
#endif

namespace FX {


/// Relationship options for icon-labels
enum {
  ICON_UNDER_TEXT      = 0,           /// Icon appears under text
  ICON_AFTER_TEXT      = 0x00080000,          /// Icon appears after text (to its right)
  ICON_BEFORE_TEXT     = 0x00100000,          /// Icon appears before text (to its left)
  ICON_ABOVE_TEXT      = 0x00200000,          /// Icon appears above text
  ICON_BELOW_TEXT      = 0x00400000,          /// Icon appears below text
  TEXT_OVER_ICON       = ICON_UNDER_TEXT,       /// Same as ICON_UNDER_TEXT
  TEXT_AFTER_ICON      = ICON_BEFORE_TEXT,        /// Same as ICON_BEFORE_TEXT
  TEXT_BEFORE_ICON     = ICON_AFTER_TEXT,       /// Same as ICON_AFTER_TEXT
  TEXT_ABOVE_ICON      = ICON_BELOW_TEXT,       /// Same as ICON_BELOW_TEXT
  TEXT_BELOW_ICON      = ICON_ABOVE_TEXT        /// Same as ICON_ABOVE_TEXT
  };


/// Normal way to show label
enum {
  LABEL_NORMAL         = JUSTIFY_NORMAL|ICON_BEFORE_TEXT
  };


class FXIcon;
class FXFont;


/**
* A label widget can be used to place a text and/or icon for
* explanation purposes.  The text label may have an optional tooltip
* and/or help string.  Icon and label are placed relative to the widget
* using the justfication options, and relative to each other as determined
* by the icon relationship options.  A large number of arrangements is
* possible.
*/
class FXAPI FXLabel : public FXFrame {
  FXDECLARE(FXLabel)
protected:
  FXString label;       // Text on the label
  FXIcon*  icon;        // Icon on the label
  FXFont*  font;        // Label font
  FXHotKey hotkey;      // Hotkey
  FXint    hotoff;      // Offset in string
  FXColor  textColor;   // Text color
  FXString tip;         // Tooltip
  FXString help;        // Help message
protected:
  FXLabel();
  FXint labelHeight(const FXString& text) const;
  FXint labelWidth(const FXString& text) const;
  void drawLabel(FXDCWindow& dc,const FXString& text,FXint hot,FXint tx,FXint ty,FXint tw,FXint th);
  void just_x(FXint& tx,FXint& ix,FXint tw,FXint iw);
  void just_y(FXint& ty,FXint& iy,FXint th,FXint ih);
private:
  FXLabel(const FXLabel&);
  FXLabel &operator=(const FXLabel&);
public:
  long onPaint(FXObject*,FXSelector,void*);
  long onHotKeyPress(FXObject*,FXSelector,void*);
  long onHotKeyRelease(FXObject*,FXSelector,void*);
  long onCmdSetValue(FXObject*,FXSelector,void*);
  long onCmdSetStringValue(FXObject*,FXSelector,void*);
  long onCmdGetStringValue(FXObject*,FXSelector,void*);
  long onCmdSetIconValue(FXObject*,FXSelector,void*);
  long onCmdGetIconValue(FXObject*,FXSelector,void*);
  long onCmdSetHelp(FXObject*,FXSelector,void*);
  long onCmdGetHelp(FXObject*,FXSelector,void*);
  long onCmdSetTip(FXObject*,FXSelector,void*);
  long onCmdGetTip(FXObject*,FXSelector,void*);
  long onQueryHelp(FXObject*,FXSelector,void*);
  long onQueryTip(FXObject*,FXSelector,void*);
public:

  /// Construct label with given text and icon
  FXLabel(FXComposite* p,const FXString& text,FXIcon* ic=0,FXuint opts=LABEL_NORMAL,FXint x=0,FXint y=0,FXint w=0,FXint h=0,FXint pl=DEFAULT_PAD,FXint pr=DEFAULT_PAD,FXint pt=DEFAULT_PAD,FXint pb=DEFAULT_PAD);

  /// Create server-side resources
  virtual void create();

  /// Detach server-side resources
  virtual void detach();

  /// Enable the window
  virtual void enable();

  /// Disable the window
  virtual void disable();

  /// Return default width
  virtual FXint getDefaultWidth();

  /// Return default height
  virtual FXint getDefaultHeight();

  /// Set the text for this label
  void setText(const FXString& text);

  /// Get the text for this label
  FXString getText() const { return label; }

  /// Set the icon for this label
  void setIcon(FXIcon* ic);

  /// Get the icon for this label
  FXIcon* getIcon() const { return icon; }

  /// Set the text font
  void setFont(FXFont *fnt);

  /// Get the text font
  FXFont* getFont() const { return font; }

  /// Get the current text color
  FXColor getTextColor() const { return textColor; }

  /// Set the current text color
  void setTextColor(FXColor clr);

  /// Set the current text-justification mode.
  void setJustify(FXuint mode);

  /// Get the current text-justification mode.
  FXuint getJustify() const;

  /// Set the current icon position
  void setIconPosition(FXuint mode);

  /// Get the current icon position
  FXuint getIconPosition() const;

  /// Set the status line help text for this label
  void setHelpText(const FXString& text){ help=text; }

  /// Get the status line help text for this label
  const FXString& getHelpText() const { return help; }

  /// Set the tool tip message for this label
  void setTipText(const FXString& text){ tip=text; }

  /// Get the tool tip message for this label
  const FXString& getTipText() const { return tip; }

  /// Save label to a stream
  virtual void save(FXStream& store) const;

  /// Load label from a stream
  virtual void load(FXStream& store);

  /// Destructor
  virtual ~FXLabel();
  };

}

#endif

Copyright © 1997-2007 Jeroen van der Zijp