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/DasherInterface.cpp')

diff --git a/inputmethods/dasher/DasherInterface.cpp b/inputmethods/dasher/DasherInterface.cpp
new file mode 100644
index 0000000..bb5b85e
--- a/dev/null
+++ b/inputmethods/dasher/DasherInterface.cpp
@@ -0,0 +1,636 @@
+// DasherInterface.cpp
+//
+/////////////////////////////////////////////////////////////////////////////
+//
+// Copyright (c) 2002 Iain Murray
+//
+/////////////////////////////////////////////////////////////////////////////
+
+
+
+#include "DasherInterface.h"
+//#include "EnglishAlphabet.h"
+#include "CustomAlphabet.h"
+#include "DasherViewSquare.h"
+#include "PPMLanguageModel.h"
+#include <iostream>
+namespace {
+	#include "stdio.h"
+}
+using namespace Dasher;
+using namespace std;
+
+
+const string CDasherInterface::EmptyString = "";
+
+
+CDasherInterface::CDasherInterface()
+	: m_DashEditbox(0), m_DasherScreen(0), m_LanguageModel(0), TrainContext(0), m_Alphabet(0),
+	  m_DasherModel(0), m_DasherView(0), AlphabetID(""), LanguageModelID(-1), ViewID(-1),
+	  m_MaxBitRate(-1), m_Orientation(Opts::LeftToRight), m_SettingsStore(0), m_SettingsUI(0),
+	  m_UserLocation("usr_"), m_SystemLocation("sys_"), m_AlphIO(0), m_TrainFile(""),
+	  m_DasherFont(""), m_EditFont(""), m_EditFontSize(0), m_DrawKeyboard(false)
+{
+}
+
+
+CDasherInterface::~CDasherInterface()
+{
+	if (m_LanguageModel)
+		m_LanguageModel->ReleaseNodeContext(TrainContext);
+	delete m_DasherModel;   // The order of some of these deletions matters
+	delete m_LanguageModel; // eg DasherModel has a pointer to LanguageModel.
+	delete m_Alphabet;      // DM baulks if LM is deleted before it is.
+	delete m_DasherView;
+	// Do NOT delete Edit box or Screen. This class did not create them.
+}
+
+
+void CDasherInterface::SetSettingsStore(CSettingsStore* SettingsStore)
+{
+	delete m_SettingsStore;
+	m_SettingsStore = SettingsStore;
+	this->SettingsDefaults(m_SettingsStore);
+}
+
+
+void CDasherInterface::SetSettingsUI(CDasherSettingsInterface* SettingsUI)
+{
+	delete m_SettingsUI;
+	m_SettingsUI = SettingsUI;
+	//this->SettingsDefaults(m_SettingsStore);
+	m_SettingsUI->SettingsDefaults(m_SettingsStore);
+}
+
+
+void CDasherInterface::SetUserLocation(std::string UserLocation)
+{
+	// Nothing clever updates. (At the moment) it is assumed that
+	// this is set before anything much happens and that it does
+	// not require changing.
+	m_UserLocation = UserLocation;
+	if (m_Alphabet!=0)
+		m_TrainFile = m_UserLocation + m_Alphabet->GetTrainingFile();
+}
+
+
+void CDasherInterface::SetSystemLocation(std::string SystemLocation)
+{
+	// Nothing clever updates. (At the moment) it is assumed that
+	// this is set before anything much happens and that it does
+	// not require changing.
+	m_SystemLocation = SystemLocation;
+}
+
+
+void CDasherInterface::CreateDasherModel()
+{
+
+  if (m_DashEditbox!=0 && m_LanguageModel!=0) {
+    delete m_DasherModel;
+    m_DasherModel = new CDasherModel(m_DashEditbox, m_LanguageModel, m_Dimensions);
+    if (m_MaxBitRate>=0)
+      m_DasherModel->SetMaxBitrate(m_MaxBitRate);
+    if (ViewID!=-1)
+      ChangeView(ViewID);
+  }
+
+
+}
+
+
+void CDasherInterface::Start()
+{
+	if (m_DasherModel!=0)
+		m_DasherModel->Start();
+}
+
+
+void CDasherInterface::PauseAt(int MouseX, int MouseY)
+{
+	if (m_DasherView!=0)
+		m_DasherView->FlushAt(MouseX, MouseY);
+	if (m_DashEditbox!=0) {
+		m_DashEditbox->write_to_file();
+		if (m_CopyAllOnStop)
+			m_DashEditbox->CopyAll();
+	}
+}
+
+
+void CDasherInterface::Unpause(unsigned long Time)
+{
+	if (m_DashEditbox!=0)
+		m_DashEditbox->unflush();
+	if (m_DasherModel!=0)
+		m_DasherModel->Reset_framerate(Time);
+}
+
+
+void CDasherInterface::Redraw()
+{
+
+  if (m_DasherView!=0) {
+    m_DasherView->Render();
+    m_DasherView->Display();
+  }
+
+}
+
+
+void CDasherInterface::TapOn(int MouseX, int MouseY, unsigned long Time)
+{
+	if (m_DasherView!=0) {
+		m_DasherView->TapOnDisplay(MouseX, MouseY, Time);
+		m_DasherView->Render();
+		if (m_DrawMouse==true) {
+		  m_DasherView->DrawMouse(MouseX, MouseY);
+		}
+		if (m_DrawKeyboard==true) {
+		  m_DasherView->DrawKeyboard();
+		}
+		m_DasherView->Display();
+	}
+	if (m_DasherModel!=0)
+		m_DasherModel->NewFrame(Time);
+}
+
+
+void CDasherInterface::ChangeAlphabet(const std::string& NewAlphabetID)
+{
+	if (m_SettingsUI!=0)
+		m_SettingsUI->ChangeAlphabet(NewAlphabetID);
+	if (m_SettingsStore!=0)
+		m_SettingsStore->SetStringOption(Keys::ALPHABET_ID, NewAlphabetID);
+	
+	AlphabetID = NewAlphabetID;
+	if (!m_AlphIO)
+		m_AlphIO = new CAlphIO(m_SystemLocation, m_UserLocation);
+	CAlphIO::AlphInfo Info = m_AlphIO->GetInfo(NewAlphabetID);
+
+	CAlphabet* old = m_Alphabet;
+	m_Alphabet = new CCustomAlphabet(Info);
+	
+	// Apply options from alphabet
+
+	m_TrainFile = m_UserLocation + m_Alphabet->GetTrainingFile();
+	
+	// Recreate widgets and language model
+	if (m_DashEditbox!=0)
+		m_DashEditbox->SetInterface(this);
+	if (m_DasherScreen!=0)
+		m_DasherScreen->SetInterface(this);
+	if (LanguageModelID!=-1 || m_LanguageModel)
+		ChangeLanguageModel(LanguageModelID);
+
+	delete old; // only delete old alphabet after telling all other objects not to use it
+
+	Start();
+
+	// We can only change the orientation after we have called
+	// Start, as this will prompt a redraw, which will fail if the
+	// model hasn't been updated for the new alphabet
+
+	if (m_Orientation==Opts::Alphabet)
+ 		ChangeOrientation(Opts::Alphabet);
+
+	Redraw();
+}
+
+
+void CDasherInterface::ChangeMaxBitRate(double NewMaxBitRate)
+{
+	m_MaxBitRate = NewMaxBitRate;
+	
+	if (m_DasherModel!=0)
+		m_DasherModel->SetMaxBitrate(m_MaxBitRate);
+	if (m_SettingsUI!=0)
+		m_SettingsUI->ChangeMaxBitRate(m_MaxBitRate);
+	if (m_SettingsStore!=0)
+		m_SettingsStore->SetLongOption(Keys::MAX_BITRATE_TIMES100, long(m_MaxBitRate*100) );
+
+	if (m_DrawKeyboard==true && m_DasherView!=NULL) {
+	  m_DasherView->DrawKeyboard();
+	}
+}
+
+
+void CDasherInterface::ChangeLanguageModel(unsigned int NewLanguageModelID)
+{
+	LanguageModelID = NewLanguageModelID;
+	if (m_Alphabet!=0) {
+		if (m_LanguageModel)
+			m_LanguageModel->ReleaseNodeContext(TrainContext);
+		TrainContext = 0;
+		delete m_DasherModel; // Have to delete DasherModel, or removing its LanguageModel will confuse it
+		m_DasherModel = 0;
+		delete m_LanguageModel;
+		// TODO Use LanguageModelID to decide which model to use
+		m_LanguageModel = new CPPMLanguageModel(m_Alphabet,1<<10);
+		TrainContext = m_LanguageModel->GetRootNodeContext();
+		string T = m_Alphabet->GetTrainingFile();
+		TrainFile(m_SystemLocation+T);
+		TrainFile(m_UserLocation+T);
+		CreateDasherModel();
+	}
+}
+
+
+void CDasherInterface::ChangeScreen()
+{
+	if (m_DasherView!=0) {
+		m_DasherView->ChangeScreen(m_DasherScreen);
+	} else {
+		if (ViewID!=-1)
+			ChangeView(ViewID);
+	}
+}
+
+
+void CDasherInterface::ChangeScreen(CDasherScreen* NewScreen)
+{
+	m_DasherScreen = NewScreen;
+	m_DasherScreen->SetFont(m_DasherFont);
+	m_DasherScreen->SetInterface(this);
+	ChangeScreen();
+	Redraw();
+}
+
+
+void CDasherInterface::ChangeView(unsigned int NewViewID)
+{
+	//TODO Use DasherViewID
+	ViewID = NewViewID;
+	if (m_DasherScreen!=0 && m_DasherModel!=0) {
+		delete m_DasherView;
+		if (m_Orientation==Opts::Alphabet)
+			m_DasherView = new CDasherViewSquare(m_DasherScreen, *m_DasherModel, GetAlphabetOrientation());
+		else
+			m_DasherView = new CDasherViewSquare(m_DasherScreen, *m_DasherModel, m_Orientation);
+	}
+}
+
+
+void CDasherInterface::ChangeOrientation(Opts::ScreenOrientations Orientation)
+{
+	m_Orientation = Orientation;
+	if (m_DasherView!=0) {
+		if (Orientation==Opts::Alphabet)
+			m_DasherView->ChangeOrientation(GetAlphabetOrientation());
+		else
+			m_DasherView->ChangeOrientation(Orientation);
+	}
+	if (m_SettingsUI!=0)
+		m_SettingsUI->ChangeOrientation(Orientation);
+	if (m_SettingsStore!=0)
+		m_SettingsStore->SetLongOption(Keys::SCREEN_ORIENTATION, Orientation);
+}
+
+
+void CDasherInterface::SetFileEncoding(Opts::FileEncodingFormats Encoding)
+{
+	if (m_SettingsUI!=0)
+		m_SettingsUI->SetFileEncoding(Encoding);
+	if (m_SettingsStore!=0)
+		m_SettingsStore->SetLongOption(Keys::FILE_ENCODING, Encoding);
+	if (m_DashEditbox)
+			m_DashEditbox->SetEncoding(Encoding);
+}
+
+
+void CDasherInterface::ShowToolbar(bool Value)
+{
+	if (m_SettingsUI!=0)
+		m_SettingsUI->ShowToolbar(Value);
+	if (m_SettingsStore!=0)
+		m_SettingsStore->SetBoolOption(Keys::SHOW_TOOLBAR, Value);
+}
+
+
+void CDasherInterface::ShowToolbarText(bool Value)
+{
+	if (m_SettingsUI!=0)
+		m_SettingsUI->ShowToolbarText(Value);
+	if (m_SettingsStore!=0)
+		m_SettingsStore->SetBoolOption(Keys::SHOW_TOOLBAR_TEXT, Value);
+}
+
+
+void CDasherInterface::ShowToolbarLargeIcons(bool Value)
+{
+	if (m_SettingsUI!=0)
+		m_SettingsUI->ShowToolbarLargeIcons(Value);
+	if (m_SettingsStore!=0)
+		m_SettingsStore->SetBoolOption(Keys::SHOW_LARGE_ICONS, Value);
+}
+
+
+void CDasherInterface::ShowSpeedSlider(bool Value)
+{
+	if (m_SettingsUI!=0)
+		m_SettingsUI->ShowSpeedSlider(Value);
+	if (m_SettingsStore!=0)
+		m_SettingsStore->SetBoolOption(Keys::SHOW_SLIDER, Value);
+}
+
+
+void CDasherInterface::FixLayout(bool Value)
+{
+	if (m_SettingsUI!=0)
+		m_SettingsUI->FixLayout(Value);
+	if (m_SettingsStore!=0)
+		m_SettingsStore->SetBoolOption(Keys::FIX_LAYOUT, Value);
+}
+
+
+void CDasherInterface::TimeStampNewFiles(bool Value)
+{
+	if (m_SettingsUI!=0)
+		m_SettingsUI->TimeStampNewFiles(Value);
+	if (m_SettingsStore!=0)
+		m_SettingsStore->SetBoolOption(Keys::TIME_STAMP, Value);
+	if (m_DashEditbox!=0)
+		m_DashEditbox->TimeStampNewFiles(Value);
+}
+
+
+void CDasherInterface::CopyAllOnStop(bool Value)
+{
+	m_CopyAllOnStop = Value;
+	if (m_SettingsUI!=0)
+		m_SettingsUI->CopyAllOnStop(Value);
+	if (m_SettingsStore!=0)
+		m_SettingsStore->SetBoolOption(Keys::COPY_ALL_ON_STOP, Value);
+}
+
+void CDasherInterface::DrawMouse(bool Value)
+{
+        m_DrawMouse = Value;
+	if (m_SettingsUI!=0)
+                m_SettingsUI->DrawMouse(Value);
+	if (m_SettingsStore!=0)
+	        m_SettingsStore->SetBoolOption(Keys::DRAW_MOUSE, Value);
+}
+
+void CDasherInterface::StartOnSpace(bool Value)
+{
+        m_StartSpace = Value;
+	if (m_SettingsUI!=0)
+	  m_SettingsUI->StartOnSpace(Value);
+	if (m_SettingsStore!=0)
+	  m_SettingsStore->SetBoolOption(Keys::START_SPACE, Value);
+}
+
+void CDasherInterface::StartOnLeft(bool Value)
+{
+  m_StartLeft = Value;
+	if (m_SettingsUI!=0)
+	  m_SettingsUI->StartOnLeft(Value);
+	if (m_SettingsStore!=0)
+	  m_SettingsStore->SetBoolOption(Keys::START_MOUSE, Value);
+}
+
+void CDasherInterface::KeyControl(bool Value)
+{
+        m_KeyControl = Value;
+	if (m_SettingsUI!=0)
+	  m_SettingsUI->KeyControl(Value);
+	if (m_SettingsStore!=0)
+	  m_SettingsStore->SetBoolOption(Keys::KEY_CONTROL, Value);
+}
+
+void CDasherInterface::WindowPause(bool Value)
+{
+        m_KeyControl = Value;
+	if (m_SettingsUI!=0)
+	  m_SettingsUI->WindowPause(Value);
+	if (m_SettingsStore!=0)
+	  m_SettingsStore->SetBoolOption(Keys::WINDOW_PAUSE, Value);
+}
+
+void CDasherInterface::SetEditFont(string Name, long Size)
+{
+	m_EditFont = Name;
+	m_EditFontSize = Size;
+	if (m_DashEditbox)
+		m_DashEditbox->SetFont(Name, Size);
+	if (m_SettingsUI!=0)
+		m_SettingsUI->SetEditFont(Name, Size);
+	if (m_SettingsStore!=0) {
+		m_SettingsStore->SetStringOption(Keys::EDIT_FONT, Name);
+		m_SettingsStore->SetLongOption(Keys::EDIT_FONT_SIZE, Size);
+	}
+}
+
+
+void CDasherInterface::SetDasherFont(string Name)
+{
+	if (m_SettingsStore!=0)
+		m_SettingsStore->SetStringOption(Keys::DASHER_FONT, Name);
+	m_DasherFont = Name;
+	if (m_DasherScreen!=0)
+		m_DasherScreen->SetFont(Name);
+	Redraw();
+}
+
+void CDasherInterface::SetDasherFontSize(FontSize fontsize)
+{
+	if (m_SettingsStore!=0)
+		m_SettingsStore->SetLongOption(Keys::DASHER_FONTSIZE, fontsize);
+	if (m_DasherScreen!=0) {
+	         m_DasherScreen->SetFontSize(fontsize);
+	}
+	Redraw();
+}
+
+void CDasherInterface::SetDasherDimensions(bool Value)
+{
+        m_Dimensions=Value;
+	if (m_SettingsStore!=0)
+		m_SettingsStore->SetBoolOption(Keys::DASHER_DIMENSIONS, Value);
+	if (m_DasherModel!=0) {
+	         m_DasherModel->Set_dimensions(Value);
+	}
+	if (m_SettingsUI!=0) {
+	         m_SettingsUI->SetDasherDimensions(Value);
+	}	  
+}
+
+
+unsigned int CDasherInterface::GetNumberSymbols()
+{
+	if (m_Alphabet!=0)
+		return m_Alphabet->GetNumberSymbols();
+	else
+		return 0;
+}
+
+
+const string& CDasherInterface::GetDisplayText(symbol Symbol)
+{
+	if (m_Alphabet!=0)
+		return m_Alphabet->GetDisplayText(Symbol);
+	else
+		return EmptyString;
+}
+
+
+const string& CDasherInterface::GetEditText(symbol Symbol)
+{
+	if (m_Alphabet!=0)
+		return m_Alphabet->GetText(Symbol);
+	else
+		return EmptyString;
+}
+
+int CDasherInterface::GetTextColour(symbol Symbol)
+{
+	if (m_Alphabet!=0)
+		return m_Alphabet->GetTextColour(Symbol);
+	else
+	        return 0;
+}
+
+
+Opts::ScreenOrientations CDasherInterface::GetAlphabetOrientation()
+{
+	return m_Alphabet->GetOrientation();
+}
+
+
+Opts::AlphabetTypes CDasherInterface::GetAlphabetType()
+{
+	return m_Alphabet->GetType();
+}
+
+
+const std::string& CDasherInterface::GetTrainFile()
+{
+	return m_TrainFile;
+}
+
+
+void CDasherInterface::GetAlphabets(std::vector< std::string >* AlphabetList)
+{
+	if (!m_AlphIO)
+		m_AlphIO = new CAlphIO(m_SystemLocation, m_UserLocation);	
+	m_AlphIO->GetAlphabets(AlphabetList);
+}
+
+
+const CAlphIO::AlphInfo& CDasherInterface::GetInfo(const std::string& AlphID)
+{
+	if (!m_AlphIO)
+		m_AlphIO = new CAlphIO(m_SystemLocation, m_UserLocation);
+	
+	return m_AlphIO->GetInfo(AlphID);
+}
+
+
+void CDasherInterface::SetInfo(const CAlphIO::AlphInfo& NewInfo)
+{
+	if (!m_AlphIO)
+		m_AlphIO = new CAlphIO(m_SystemLocation, m_UserLocation);
+	
+	m_AlphIO->SetInfo(NewInfo);
+}
+
+
+void CDasherInterface::DeleteAlphabet(const std::string& AlphID)
+{
+	if (!m_AlphIO)
+		m_AlphIO = new CAlphIO(m_SystemLocation, m_UserLocation);
+	
+	m_AlphIO->Delete(AlphID);
+}
+
+
+void CDasherInterface::ChangeEdit()
+{
+	CreateDasherModel();
+	if (m_DasherModel!=0)
+		m_DasherModel->Start();
+	if (m_DasherView!=0)
+		m_DasherView->Render();
+}
+
+
+void CDasherInterface::ChangeEdit(CDashEditbox* NewEdit)
+{
+	m_DashEditbox = NewEdit;
+	m_DashEditbox->SetFont(m_EditFont, m_EditFontSize);
+	m_DashEditbox->SetInterface(this);
+	if (m_SettingsStore!=0)
+		m_DashEditbox->TimeStampNewFiles(m_SettingsStore->GetBoolOption(Keys::TIME_STAMP));
+	m_DashEditbox->New("");
+	ChangeEdit();
+}
+
+
+void CDasherInterface::Train(string* TrainString, bool IsMore)
+{
+	m_LanguageModel->LearnText(TrainContext, TrainString, IsMore);
+	return;
+}
+
+
+/*
+	I've used C style I/O because I found that C++ style I/O bloated
+	the Win32 code enormously. The overhead of loading the buffer into
+	the string instead of reading straight into a string seems to be
+	negligible compared to huge requirements elsewhere.
+*/
+void CDasherInterface::TrainFile(string Filename)
+{
+	if (Filename=="")
+		return;
+	
+	FILE* InputFile;
+	if ( (InputFile = fopen(Filename.c_str(), "r")) == (FILE*)0)
+		return;
+	
+	const int BufferSize = 1024;
+	char InputBuffer[BufferSize];
+	string StringBuffer;
+	int NumberRead;
+	
+	do {
+		NumberRead = fread(InputBuffer, 1, BufferSize-1, InputFile);
+		InputBuffer[NumberRead] = '\0';
+		StringBuffer += InputBuffer;
+		if (NumberRead == (BufferSize-1)) {
+		  m_LanguageModel->LearnText(TrainContext, &StringBuffer, true);
+		} else {
+		  m_LanguageModel->LearnText(TrainContext, &StringBuffer, false);
+		}
+	} while (NumberRead==BufferSize-1);
+
+	fclose(InputFile);
+}
+
+void CDasherInterface::GetFontSizes(std::vector<int> *FontSizes)
+{
+  FontSizes->push_back(20);
+  FontSizes->push_back(14);
+  FontSizes->push_back(11);
+  FontSizes->push_back(40);
+  FontSizes->push_back(28);
+  FontSizes->push_back(22);
+  FontSizes->push_back(80);
+  FontSizes->push_back(56);
+  FontSizes->push_back(44);
+}
+  
+
+double CDasherInterface::GetCurCPM()
+{
+	//
+	return 0;
+}
+
+
+double CDasherInterface::GetCurFPS()
+{
+	//
+	return 0;
+}
--
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