File loading and saving checks

Makefile

@@ -16,8 +16,8 @@ WX_RES = $(shell wx-config --rescomp)
 
 LDLIBS = $(TARGET) 
 
-DEV_CXXFLAGS = -g -Wall -Wextra
-CXXFLAGS = -Os -s
+DEV_CXXFLAGS = -g -Wall -Wextra -DDEBUG
+CXXFLAGS = -Os -DNDEBUG
 
 TEST_SRC = $(wildcard tests/*.cpp)
 TESTS = $(patsubst %.cpp,%,$(TEST_SRC))

README.md

@@ -15,9 +15,7 @@ A Cross-platform Code Editor
 Required packages:
 
 * build-essential
-* libwxgtk3.0-0
 * libwxgtk3.0-dev
-* libssh2-1
 * libssh2-1-dev
 
 Optional:

src/definitions.h

@@ -10,6 +10,12 @@ const wxString APP_NAME = "Tyro";
 const wxString APP_VENDOR = "Aviat Ion";
 const wxString APP_VERSION = "0.0.1";
 
+// Some boilerplate text
+const wxString TYRO_SAVE_ERROR = "Failed to save the file. Maybe you lack the permissions.";
+const wxString TYRO_SAVE_ERROR_CAPTION = "Saving Failed";
+const wxString TYRO_OPEN_ERROR = "Failed to open the file. Check that it exists, and that you have read permissions.";
+const wxString TYRO_OPEN_ERROR_CAPTION = "Open Failed";
+
 // EditPane file extension to lexer mapping
 typedef pair<string, int> StringConstMapData;
 typedef map<string, int> StringConstMap;

src/widgets/EditPane.cpp

@@ -29,14 +29,19 @@ EditPane::~EditPane()
 }
 
 /**
- * Encapsulate lexer selection when opening a file
+ * Handle the highlighting config for the
+ * selected file
  * 
  * @param wxString filePath
- * @return bool
+ * @return void
  */
-bool EditPane::LoadAndHighlight(wxString filePath)
+void EditPane::Highlight(wxString filePath)
 {
-	fileName = filePath;
+	this->fileName.Assign(filePath);
+	
+	wxLogDebug("Highlighting method");
+	
+	// Get the configuration name for the selected language
 	string lang = this->GetLangByFile();
 
 	this->StyleClearAll();
@@ -147,29 +152,58 @@ bool EditPane::LoadAndHighlight(wxString filePath)
 	else
 	{
 		string typeMap[] = {"null", "int", "unsigned int", "double", "string", "boolean", "array", "object"};
+		stringstream output;
 		
-		cerr << "current lang is:" << lang << endl;
-		cerr << "keywords array is not an array" << endl;
-		cerr << "keyword array is a " << typeMap[keywords_array.type()] << endl;
+		output << "current lang is:" << lang << endl;
+		output << "keywords array is not an array" << endl;
+		output << "keyword array is a " << typeMap[keywords_array.type()] << endl;
+		
+		wxLogDebug(output.str().c_str());
 	}
-
-	return this->LoadFile(filePath);
 }
 
+/**
+ * Check file path and open the selected file
+ *
+ * @param wxString filePath
+ * @return bool
+ */
+bool EditPane::Load(wxString filePath)
+{
+	this->fileName.Assign(filePath);
+	
+	if (this->FileReadable())
+	{	
+		this->Highlight(filePath);
+		bool didLoad = this->LoadFile(filePath);
+		
+		// @TODO Toggle controls based on write permission
+		
+		return didLoad;
+	}
+	
+	return false;
+}
+
+/**
+ * Determine the format of the current file by
+ * matching its extension against the patterns
+ * in the configuration files
+ * 
+ * @return string
+ */
 string EditPane::GetLangByFile()
 {
 	JsonValue langList = config->GetRoot();
 	JsonValue::iterator it;
 	
-	wxFileName fname(this->fileName);
-	wxString curr_file = fname.GetFullName();
+	wxString curr_file = this->fileName.GetFullName();
 	
 	// Loop through each language to find a matching file pattern
 	for (it = langList.begin(); it != langList.end(); ++it)
 	{
 		string lang = it.key().asString();
 		
-		
 		// Parse the file pattern
 		wxString file_pattern((*it)["file_pattern"].asString());
 		
@@ -195,7 +229,9 @@ string EditPane::GetLangByFile()
 
 bool EditPane::SaveFile()
 {
-	if ( ! this->fileName)
+	wxString fname;
+	
+	if ( ! this->fileName.IsOk())
 	{
 		wxFileDialog dlg (
 			this, 
@@ -207,24 +243,88 @@ bool EditPane::SaveFile()
 		);
 		
 		if (dlg.ShowModal() != wxID_OK) return false;
-		this->fileName = dlg.GetPath();
+		fname = dlg.GetPath();
+	}
+	else
+	{
+		fname = this->fileName.GetFullPath();
 	}
 	
-	return this->SaveFile(this->fileName);
+	const wxString cfname(fname);
+	
+	return this->SaveFile(cfname);
 }
 
 bool EditPane::SaveFile(const wxString &filename)
 {
 	if ( ! this->IsModified()) return true;
 	
-	this->SetSavePoint();
+	this->fileName.Assign(filename);
 	
+	// Check file permissions
+	if (this->FileWritable())
+	{
+		this->SetSavePoint();
 		return wxStyledTextCtrl::SaveFile(filename);
+	}
+	
+	return false;
 }
 
 bool EditPane::IsModified()
 {
-	return (GetModify() && !GetReadOnly());
+	return this->GetModify();
+}
+
+/**
+ * Check that the current file can be opened
+ * 
+ * @return bool 
+ */
+bool EditPane::FileReadable()
+{	
+	if (
+		this->fileName.IsOk() &&
+		this->fileName.Exists() &&
+		this->fileName.IsFileReadable()
+	) return true;
+	
+	// Hmm...well, let's give an error
+	wxMessageDialog errDlg(
+		this, 
+		TYRO_OPEN_ERROR, 
+		TYRO_OPEN_ERROR_CAPTION,
+		wxOK | wxICON_ERROR | wxCENTER
+	);
+	errDlg.ShowModal();
+	
+	return false;
+}
+
+/**
+ * Check that the current file can be saved
+ * 
+ * @return bool 
+ */
+bool EditPane::FileWritable()
+{
+	// Lets see...can we write somewhere?
+	if (
+		this->fileName.IsOk() &&
+		((this->fileName.Exists() && this->fileName.IsFileWritable()) ||
+		(( ! this->fileName.Exists()) && this->fileName.IsDirWritable()))
+	) return true;
+	
+	// Hmm...well, let's give an error
+	wxMessageDialog errDlg(
+		this, 
+		TYRO_SAVE_ERROR, 
+		TYRO_SAVE_ERROR_CAPTION,
+		wxOK | wxICON_ERROR | wxCENTER
+	);
+	errDlg.ShowModal();
+
+	return false;
 }
 
 void EditPane::BindEvents()

src/widgets/EditPane.h

@@ -21,9 +21,10 @@ public:
 		wxVSCROLL
 	);
 	~EditPane();
-	wxString fileName;
+	wxFileName fileName;
 	string GetLangByFile();
-	bool LoadAndHighlight(wxString filePath);
+	bool Load(wxString filePath);
+	void Highlight(wxString filePath);
 	bool SaveFile();
 	bool SaveFile(const wxString &filename);
 	bool IsModified();
@@ -36,6 +37,8 @@ private:
 		MARGIN_FOLD,
 		MARGIN_LINE_NUMBERS
 	};
+	bool FileReadable();
+	bool FileWritable();
 	void BindEvents();
 	void OnMarginClick(wxStyledTextEvent &event);
 };

src/widgets/MainFrame.cpp

@@ -24,7 +24,7 @@ MainFrame::MainFrame(wxFrame *frame, const wxString& title)
 
 	base_sizer->Add(notebook, 1, wxEXPAND | wxALL, 5);
 	base_sizer->SetContainingWindow(this);
-	base_sizer->SetMinSize(600,400);
+	base_sizer->SetMinSize(800,600);
 	
 	this->DisableEditControls();
 	this->BindEvents();
@@ -222,7 +222,39 @@ void MainFrame::OnSave(wxCommandEvent &WXUNUSED(event))
 
 void MainFrame::OnSaveAs(wxCommandEvent &WXUNUSED(event))
 {
-	// @TODO Implement OnSaveAs
+	EditPane *editor = notebook->GetCurrentEditor();
+
+	// If the file hasn't been changed, just return
+	if ( ! editor->IsModified()) return;
+
+	wxFileDialog dlg(
+		this, 
+		"Save as...", 
+		wxEmptyString, 
+		wxEmptyString,
+		TYRO_FILE_SAVE_WILDCARDS,
+		wxFD_SAVE | wxFD_OVERWRITE_PROMPT
+	);
+
+	// Return if the file isn't to be saved
+	if (dlg.ShowModal() != wxID_OK) return;
+
+	wxString filePath = dlg.GetPath();
+
+	// Save the file
+	if(editor->SaveFile(filePath))
+	{
+		wxFileName fileName(filePath);
+		const wxString fullPath = filePath;
+		const wxString caption= fileName.GetFullName();
+		
+		// Update the name of the tab
+		notebook->SetPageToolTip(notebook->GetSelection(), fullPath);
+		notebook->SetPageText(notebook->GetSelection(), caption);
+
+		// Update the editor highlighting
+		editor->Highlight(filePath);
+	}
 }	
 
 void MainFrame::OnQuit(wxCommandEvent &WXUNUSED(event))

src/widgets/TabContainer.cpp

@@ -38,22 +38,15 @@ void TabContainer::AddTab(wxString filePath)
 	wxString caption= fileName.GetFullName();
 	EditPane *editor = new EditPane(this, wxID_ANY);
 	
-	bool loaded_file = editor->LoadAndHighlight(filePath);
-	
-	if (loaded_file)
+	if (editor->Load(filePath))
 	{
+		wxLogDebug("File should be properly loaded.");
 		this->AddPage(editor, caption, true);
+		
+		return;
 	}
-	else
-	{
-		wxMessageDialog err(
-			this, 
-			_T("Failed to open the specified file. Do you have permission to open it?"),
-			_T("Could not open file."),
-			wxOK|wxCENTER|wxICON_WARNING
-		);
-		err.ShowModal();
-	}
+	
+	wxLogDebug("Failed to load file!?");
 }
 
 EditPane *TabContainer::GetCurrentEditor()