fltkui.hh

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#ifndef __DW_FLTK_UI_HH__
#define __DW_FLTK_UI_HH__

#ifndef __INCLUDED_FROM_DW_FLTK_CORE_HH__
#   error Do not include this file directly, use "fltkcore.hh" instead.
#endif

#include <FL/Fl_Button.H>
#include <FL/Fl_Menu.H>
#include <FL/Fl_Text_Buffer.H>

namespace dw {
namespace fltk {

namespace ui {

class FltkResource: public lout::object::Object
{
private:
   bool enabled;

protected:
   FltkView *view;
   Fl_Widget *widget;
   core::Allocation allocation;
   FltkPlatform *platform;

   core::style::Style *style;

   FltkResource (FltkPlatform *platform);
   void init (FltkPlatform *platform);
   virtual Fl_Widget *createNewWidget (core::Allocation *allocation) = 0;

   virtual void setWidgetStyle (Fl_Widget *widget, core::style::Style *style);
   void setDisplayed (bool displayed);
   bool displayed();
public:
   ~FltkResource ();

   virtual void attachView (FltkView *view);
   virtual void detachView (FltkView *view);

   void sizeAllocate (core::Allocation *allocation);
   void draw (core::View *view, core::Rectangle *area,
              core::DrawingContext *context);

   void setStyle (core::style::Style *style);

   bool isEnabled ();
   void setEnabled (bool enabled);
};


template <class I> class FltkSpecificResource: public I, public FltkResource
{
public:
   FltkSpecificResource (FltkPlatform *platform);
   ~FltkSpecificResource ();

   void sizeAllocate (core::Allocation *allocation);
   void draw (core::View *view, core::Rectangle *area,
              core::DrawingContext *context);
   void setStyle (core::style::Style *style);

   bool isEnabled ();
   void setEnabled (bool enabled);
};


class FltkLabelButtonResource:
   public FltkSpecificResource <dw::core::ui::LabelButtonResource>
{
private:
   const char *label;

   static void widgetCallback (Fl_Widget *widget, void *data);

protected:
   Fl_Widget *createNewWidget (core::Allocation *allocation);

public:
   FltkLabelButtonResource (FltkPlatform *platform, const char *label);
   ~FltkLabelButtonResource ();

   void sizeRequest (core::Requisition *requisition);

   const char *getLabel ();
   void setLabel (const char *label);
};


class FltkComplexButtonResource:
   public FltkSpecificResource <dw::core::ui::ComplexButtonResource>
{
private:
   bool relief;

   static void widgetCallback (Fl_Widget *widget, void *data);

protected:
   FltkView *topView, *flatView;

   void attachView (FltkView *view);
   void detachView (FltkView *view);

   void sizeAllocate (core::Allocation *allocation);

   dw::core::Platform *createPlatform ();
   void setLayout (dw::core::Layout *layout);

   int reliefXThickness ();
   int reliefYThickness ();

   Fl_Widget *createNewWidget (core::Allocation *allocation);

public:
   FltkComplexButtonResource (FltkPlatform *platform, dw::core::Widget *widget,
                              bool relief);
   ~FltkComplexButtonResource ();
};


class FltkEntryResource:
   public FltkSpecificResource <dw::core::ui::EntryResource>
{
private:
   int size;
   bool password;
   const char *initText;
   char *label;
   int label_w;
   char *placeholder;
   bool editable;

   static void widgetCallback (Fl_Widget *widget, void *data);
   void setDisplayed (bool displayed);

protected:
   Fl_Widget *createNewWidget (core::Allocation *allocation);
   void setWidgetStyle (Fl_Widget *widget, core::style::Style *style);

public:
   FltkEntryResource (FltkPlatform *platform, int size, bool password,
                      const char *label, const char *placeholder);
   ~FltkEntryResource ();

   void sizeRequest (core::Requisition *requisition);
   void sizeAllocate (core::Allocation *allocation);

   const char *getText ();
   void setText (const char *text);
   bool isEditable ();
   void setEditable (bool editable);
   void setMaxLength (int maxlen);
};


class FltkMultiLineTextResource:
   public FltkSpecificResource <dw::core::ui::MultiLineTextResource>
{
private:
   bool editable;
   int numCols, numRows;
   char *placeholder;
protected:
   Fl_Widget *createNewWidget (core::Allocation *allocation);
   void setWidgetStyle (Fl_Widget *widget, core::style::Style *style);

public:
   FltkMultiLineTextResource (FltkPlatform *platform, int cols, int rows,
                              const char *placeholder);
   ~FltkMultiLineTextResource ();

   void sizeRequest (core::Requisition *requisition);

   const char *getText ();
   void setText (const char *text);
   bool isEditable ();
   void setEditable (bool editable);
};


template <class I> class FltkToggleButtonResource:
   public FltkSpecificResource <I>
{
private:
   bool initActivated;

protected:
   virtual Fl_Button *createNewButton (core::Allocation *allocation) = 0;
   Fl_Widget *createNewWidget (core::Allocation *allocation);
   void setWidgetStyle (Fl_Widget *widget, core::style::Style *style);

public:
   FltkToggleButtonResource (FltkPlatform *platform,
                             bool activated);
   ~FltkToggleButtonResource ();

   void sizeRequest (core::Requisition *requisition);

   bool isActivated ();
   void setActivated (bool activated);
};


class FltkCheckButtonResource:
   public FltkToggleButtonResource <dw::core::ui::CheckButtonResource>
{
protected:
   Fl_Button *createNewButton (core::Allocation *allocation);

public:
   FltkCheckButtonResource (FltkPlatform *platform,
                            bool activated);
   ~FltkCheckButtonResource ();
};


class FltkRadioButtonResource:
   public FltkToggleButtonResource <dw::core::ui::RadioButtonResource>
{
private:
   class Group
   {
   private:
      class FltkGroupIterator:
         public dw::core::ui::RadioButtonResource::GroupIterator
      {
      private:
         lout::container::typed::Iterator <FltkRadioButtonResource> it;

      public:
         inline FltkGroupIterator (lout::container::typed::List
                                   <FltkRadioButtonResource>
                                   *list)
            { it = list->iterator (); }

         bool hasNext ();
         dw::core::ui::RadioButtonResource *getNext ();
         void unref ();
      };

      lout::container::typed::List <FltkRadioButtonResource> *list;

   protected:
      ~Group ();

   public:
      Group (FltkRadioButtonResource *radioButtonResource);

      inline lout::container::typed::Iterator <FltkRadioButtonResource>
                                              iterator ()
      {
         return list->iterator ();
      }

      inline dw::core::ui::RadioButtonResource::GroupIterator
         *groupIterator ()
      {
         return new FltkGroupIterator (list);
      }

      void connect (FltkRadioButtonResource *radioButtonResource);
      void unconnect (FltkRadioButtonResource *radioButtonResource);
   };

   Group *group;

   static void widgetCallback (Fl_Widget *widget, void *data);
   void buttonClicked ();

protected:
   Fl_Button *createNewButton (core::Allocation *allocation);

public:
   FltkRadioButtonResource (FltkPlatform *platform,
                            FltkRadioButtonResource *groupedWith,
                            bool activated);
   ~FltkRadioButtonResource ();

   GroupIterator *groupIterator ();
};


template <class I> class FltkSelectionResource:
   public FltkSpecificResource <I>
{
protected:
   virtual bool setSelectedItems() { return false; }
   virtual void addItem (const char *str, bool enabled, bool selected) = 0;
   virtual void setItem (int index, bool selected) = 0;
   virtual void pushGroup (const char *name, bool enabled) = 0;
   virtual void popGroup () = 0;
public:
   FltkSelectionResource (FltkPlatform *platform) :
      FltkSpecificResource<I> (platform) {};
   dw::core::Iterator *iterator (dw::core::Content::Type mask, bool atEnd);
};


class FltkOptionMenuResource:
   public FltkSelectionResource <dw::core::ui::OptionMenuResource>
{
protected:
   Fl_Widget *createNewWidget (core::Allocation *allocation);
   virtual bool setSelectedItems() { return true; }
   void setWidgetStyle (Fl_Widget *widget, core::style::Style *style);
   int getNumberOfItems();
   int getMaxItemWidth ();
private:
   static void widgetCallback (Fl_Widget *widget, void *data);
   void enlargeMenu();
   Fl_Menu_Item *newItem();
   Fl_Menu_Item *menu;
   int itemsAllocated, itemsUsed;
public:
   FltkOptionMenuResource (FltkPlatform *platform);
   ~FltkOptionMenuResource ();

   void addItem (const char *str, bool enabled, bool selected);
   void setItem (int index, bool selected);
   void pushGroup (const char *name, bool enabled);
   void popGroup ();

   void sizeRequest (core::Requisition *requisition);
   bool isSelected (int index);
};

class FltkListResource:
   public FltkSelectionResource <dw::core::ui::ListResource>
{
protected:
   Fl_Widget *createNewWidget (core::Allocation *allocation);
   void setWidgetStyle (Fl_Widget *widget, core::style::Style *style);
   int getNumberOfItems();
   int getMaxItemWidth ();
private:
   static void widgetCallback (Fl_Widget *widget, void *data);
   void *newItem (const char *str, bool enabled, bool selected);
   int currDepth;
   int colWidths[4];
   int showRows;
   ListResource::SelectionMode mode;
public:
   FltkListResource (FltkPlatform *platform,
                     core::ui::ListResource::SelectionMode selectionMode,
                     int rows);
   ~FltkListResource ();

   void addItem (const char *str, bool enabled, bool selected);
   void setItem (int index, bool selected);
   void pushGroup (const char *name, bool enabled);
   void popGroup ();

   void sizeRequest (core::Requisition *requisition);
   bool isSelected (int index);
};


} // namespace ui
} // namespace fltk
} // namespace dw


#endif // __DW_FLTK_UI_HH__