From 651b6c612db4e809c506973996f2580c4158ac3a Mon Sep 17 00:00:00 2001
From: mickeyl <mickeyl>
Date: Sat, 27 Sep 2003 11:29:26 +0000
Subject: merge dasher which has been introduced in BRANCH first (wtf?) into HEAD

---
(limited to 'inputmethods/dasher/DasherWidgetInterface.h')

diff --git a/inputmethods/dasher/DasherWidgetInterface.h b/inputmethods/dasher/DasherWidgetInterface.h
new file mode 100644
index 0000000..5a1387e
--- a/dev/null
+++ b/inputmethods/dasher/DasherWidgetInterface.h
@@ -0,0 +1,93 @@
+// DasherWidgetInterface.h
+//
+/////////////////////////////////////////////////////////////////////////////
+//
+// Copyright (c) 2002 Iain Murray
+//
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef __DasherWidgetInterface_h__
+#define __DasherWidgetInterface_h__
+
+
+#include "DasherTypes.h"
+#include <string>
+
+namespace Dasher {class CDasherWidgetInterface;}
+class Dasher::CDasherWidgetInterface
+{
+public:
+        //! Signal to the core that the model should be started
+        //
+        //! Call this function before providing input coordinates and whenever
+        //! reinitialising Dasher
+	virtual void Start()=0;
+	
+	// Times in milliseconds are required so Dasher runs at the correct speed.
+	//! Signal an input location
+	//
+	//! Signal an input event. This may be the current location of the 
+	//! mouse or a stylus tap, for example
+	//! \param MouseX The mouse X coordinate, in screen coordinates
+	//! \param MouseY The mouse Y coordinate, in screen coordinates
+	//! \param Time Time in milliseconds, required to keep Dasher running
+	//! at the correct speed
+	virtual void TapOn(int MouseX, int MouseY, unsigned long Time)=0;
+	
+	//! Signal an input event and pause the simulation
+	virtual void PauseAt(int MouseX, int MouseY)=0;
+	
+	//! Unpause the simulation.
+	//
+	//! \param Time should be in milliscones and should be consistent with
+	//! previous time values
+	virtual void Unpause(unsigned long Time)=0;
+
+	//! Signal that the core should redraw the screen
+	virtual void Redraw()=0;
+	
+	// The widgets need to tell the engine when they have been affected
+	// by external interaction
+	
+	//! Signal the core that a change has occured to the screen. (Unneeded)
+	virtual void ChangeScreen()=0;
+
+	//! Signal the core that a change has occued to the editbox. (Unneeded)
+	virtual void ChangeEdit()=0;
+	
+	// These are needed so widgets know how to render the alphabet.
+	// All strings are encoded in UTF-8.
+
+	//! Request the number of symbols in the current alphabet
+	virtual unsigned int GetNumberSymbols()=0;
+	
+	//! Request the text that should be displayed on the Dasher canvas
+	//
+	//! Note - the returned string is in UTF-8 encoding.
+	//! \param Symbol the symbol that is to be displayed
+	virtual const std::string& GetDisplayText(Dasher::symbol Symbol)=0;
+
+	//! Request the text that should be entered into the edit box
+	//
+	//! Note - the returned string is in UTF-8 encoding.
+	//! \param Symbol the symbol that is to be displayed
+	virtual const std::string& GetEditText(Dasher::symbol Symbol)=0;
+
+	//! Request the foreground colour for the text to be drawn on the canvas
+	//! \param Symbol the symbol that is to be displayed
+	virtual int GetTextColour(Dasher::symbol Symbol)=0;
+
+	//! Request the default screen orientation for the current alphabet
+	//
+	//! (Eg, left to right for English, right to left for Hebrew)
+	virtual Opts::ScreenOrientations GetAlphabetOrientation()=0;
+
+	//! Returns the codepage for the current alphabet
+	virtual Opts::AlphabetTypes GetAlphabetType()=0;
+
+	//! Provides a fully qualified path to the training file for the alphabet
+	virtual const std::string& GetTrainFile()=0; // Returns a fully-qualified path to file:
+	                                             // UserLocation + TrainFile
+};
+
+#endif /* #ifndef __DasherWidgetInterface_h__ */
--
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