Partially working text editor

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@99 0fc631ac-6414-0410-93d0-97cfa31319b6

src/gui/value/text.hpp

@@ -13,14 +13,116 @@
 #include <gui/value/editor.hpp>
 #include <render/value/text.hpp>
 
+class TextValueEditorScrollBar;
+
 // ----------------------------------------------------------------------------- : TextValueEditor
 
+/// Directions of cursor movement
+enum Movement
+{	MOVE_LEFT	///< Always move the cursor to the left
+,	MOVE_MID	///< Move in whichever direction the distance to move is shorter (TODO: define shorter)
+,	MOVE_RIGHT	///< Always move the cursor to the right
+};
+
 /// An editor 'control' for editing TextValues
+/** Okay, this class responds to pretty much every event available... :)
+ */
 class TextValueEditor : public TextValueViewer, public ValueEditor {
   public:
 	DECLARE_VALUE_EDITOR(Text);
+	~TextValueEditor();
 	
-//	virtual void determineSize();
+	// --------------------------------------------------- : Events
+	
+	virtual void onFocus();
+	virtual void onLoseFocus();
+	
+	virtual void onLeftDown  (const RealPoint& pos, wxMouseEvent&);
+	virtual void onLeftUp    (const RealPoint& pos, wxMouseEvent&);
+	virtual void onLeftDClick(const RealPoint& pos, wxMouseEvent&);
+	virtual void onRightDown (const RealPoint& pos, wxMouseEvent&);
+	virtual void onMotion    (const RealPoint& pos, wxMouseEvent&);
+	virtual void onMouseWheel(const RealPoint& pos, wxMouseEvent& ev);
+	
+	virtual bool onContextMenu(wxMenu& m, wxContextMenuEvent&);
+	virtual void onMenu(wxCommandEvent&);
+	
+	virtual void onChar(wxKeyEvent&);
+	
+	// --------------------------------------------------- : Actions
+	
+	virtual void onValueChange();
+	virtual void onAction(const ValueAction&, bool undone);
+	
+	// --------------------------------------------------- : Clipboard
+	
+	virtual bool canCopy()  const;
+	virtual bool canPaste() const;
+	virtual bool doCopy();
+	virtual bool doPaste();
+	virtual bool doDelete();
+	
+	// --------------------------------------------------- : Formating
+	
+	virtual bool canFormat(int type) const;
+	virtual bool hasFormat(int type) const;
+	virtual void doFormat(int type);
+	
+	// --------------------------------------------------- : Selection
+	
+	virtual void select(size_t start, size_t end);
+	virtual size_t selectionStart() const { return selection_start; }
+	virtual size_t selectionEnd()   const { return selection_end; }
+	
+	// --------------------------------------------------- : Other
+	
+	virtual wxCursor cursor() const;
+	virtual void determineSize();
+	virtual void onShow(bool);
+	
+	// --------------------------------------------------- : Data
+  private:
+	size_t selection_start, selection_end; ///< Cursor position/selection (if any)
+	TextValueEditorScrollBar* scrollbar;   ///< Scrollbar for multiline fields in native look
+	
+	// --------------------------------------------------- : Selection / movement
+	
+	/// Move the selection to a new location, clears the previously drawn selection
+	void moveSelection(size_t new_end, bool also_move_start=true, Movement dir = MOVE_MID);
+	/// Move the selection to a new location, but does not redraw
+	void moveSelectionNoRedraw(size_t new_end, bool also_move_start=true, Movement dir = MOVE_MID);
+	
+	/// Replace the current selection with 'replacement', name the action
+	void replaceSelection(const String& replacement, const String& name);
+	
+	/// Make sure the selection satisfies its constraints
+	/** - selection_start and selection_end are inside the text
+	 *  - not inside tags
+	 *  - the selection does not contain a <sep> or </sep> tag
+	 *
+	 *  When correcting the selection, move in the given direction
+	 */
+	void fixSelection(Movement dir = MOVE_MID);
+	
+	/// Return a position resulting from moving pos outside the range [start...end), in the direction dir
+	static size_t move(size_t pos, size_t start, size_t end, Movement dir);
+	
+	/// Move the caret to the selection_end position and show it
+	void showCaret();
+	
+	/// Position of previous visible & selectable character
+	size_t prevCharBoundry(size_t pos) const;
+	size_t nextCharBoundry(size_t pos) const;
+	/// Front of previous word, used witch Ctrl+Left/right
+	size_t prevWordBoundry(size_t pos) const;
+	size_t nextWordBoundry(size_t pos) const;
+	
+	// --------------------------------------------------- : Scrolling
+	
+	friend class TextValueEditorScrollBar;
+	
+	/// Scroll to the given position, called by scrollbar
+	void scrollTo(int pos);
 };
 
 // ----------------------------------------------------------------------------- : EOF