don't crash when invalid colour is set as fg/bg colour

[wxWidgets.git] / utils / framelayout / src / controlarea.h

/////////////////////////////////////////////////////////////////////////////
// Name:        No names yet.
// Purpose:     Contrib. demo
// Author:      Aleksandras Gluchovas
// Modified by:
// Created:     07/09/98
// RCS-ID:      $Id$
// Copyright:   (c) Aleksandras Gluchovas
// Licence:   	wxWindows license
/////////////////////////////////////////////////////////////////////////////

#ifndef __CONTROLAREA_G__
#define __CONTROLAREA_G__

#ifdef __GNUG__
#pragma interface "controlarea.h"
#endif

#include "wx/defs.h"
#include "wx/window.h"
#include "wx/string.h"

#define WXCONTROLAREA_VERSION      1.0

// layout types for title bars of the tabs
// (are selected up by evaluating the available free space )

class twTabInfo; // forward decl.

#define wxTITLE_IMG_AND_TEXT 0
#define wxTITLE_IMG_ONLY     1
#define wxTITLE_BORDER_ONLY  2

/*
 * class manages and decorates contained "tab"-windows. 
 * Draws decorations similar to those in "Project Workplace"
 * of Microsoft Developer Studio 4.xx 
 */

class wxTabbedWindow : public wxPanel
{
	DECLARE_DYNAMIC_CLASS( wxTabbedWindow )

public:	

	friend class wxTabbedWindowSerializer;

	wxList mTabs;
	int    mActiveTab;
	int    mTitleHeight;
	int    mLayoutType;

	void HideInactiveTabs( bool andRepaint );

	// overrride,to provide different font for tab-labels

	virtual wxFont GetLabelingFont();

	// FOR NOW:: scrollbars are actually related to wxPaggedWindow

	wxScrollBar* mpTabScroll;
	wxScrollBar* mpHorizScroll;
	wxScrollBar* mpVertScroll;

public:

	// public properties (invoke ReclaclLayout(TRUE) to apply changes)

	wxPen  mWhitePen;        // default: RGB(255,255,255)
	wxPen  mLightPen;		 // wxSYS_COLOUR_3DHIGHLIGHT
	wxPen  mGrayPen;         // wxSYS_COLOUR_3DFACE
	wxPen  mDarkPen;         // wxSYS_COLOUR_3DSHADOW
	wxPen  mBlackPen;        // default: RGB(  0,  0,  0)

	int    mVertGap;         // default: 3
	int    mHorizGap;        // default: 5
	int    mTitleVertGap;    // default: 3
	int    mTitleHorizGap;   // default: 4
	int    mImageTextGap;    // default: 2
	int    mFirstTitleGap;   // default: 11
	int    mBorderOnlyWidth; // default: 8

	// notifications (can be handled by derivatives)

	virtual void OnTabAdded( twTabInfo* pInfo ) {}

	virtual void SizeTabs(int x,int y, int width, int height, bool repant);

public:
	wxTabbedWindow();
	virtual ~wxTabbedWindow();

	// tabs can be also added when the window is 
	// already displayed - "on the fly"

	virtual void AddTab( wxWindow* pContent,           // contained window
						 wxString  tabText,		       // tab label
		                 wxString  imageFileName = "", // if "", only text label is displayed
						 long      imageType     = wxBITMAP_TYPE_BMP );

	// NOTE:: if this AddTab(..) overload is called, the 
	//        image bitmap will not be serialized (if performed),
	//        use the above method instead, so that images could 
	//        be restored using the given file names

	virtual void AddTab( wxWindow* pContent,
						 wxString  tabText,
		                 wxBitmap* pImage = NULL );


	virtual void RemoveTab( int tabNo );

	/* misc accessors */

	virtual int GetTabCount();
	virtual wxWindow* GetTab( int tabNo );
	virtual wxWindow* GetActiveTab();
	virtual void SetActiveTab( int tabNo );

	void DrawShadedRect( int x, int y, int width, int height,
						 wxPen& upperPen, wxPen& lowerPen, wxDC& dc );

	virtual void DrawDecorations( wxDC& dc );

	// return -1, if non of the title bars was hitted,
	// otherwise the index of the hitted tab title bar

	virtual int HitTest( const wxPoint& pos );

	// should be invoked to redisplay window with changed properties

	virtual void RecalcLayout( bool andRepaint = TRUE );

	// event handlers

	void OnPaint( wxPaintEvent& event );
	void OnSize ( wxSizeEvent& event );

	void OnBkErase( wxEraseEvent& event );
	void OnLButtonDown( wxMouseEvent& event );

	DECLARE_EVENT_TABLE()
};

/*
 * class manages and decorates contained "sheets" (or pages). 
 * Draws decorations similar to those in "Output window"
 * of Microsoft Developer Studio 4.xx 
 */

class wxPaggedWindow : public wxTabbedWindow
{
	DECLARE_DYNAMIC_CLASS( wxPaggedWindow )
protected:

	bool         mScrollEventInProgress;

	// drag&drop state variables

	bool         mIsDragged;
	int          mDagOrigin;
	wxCursor     mResizeCursor;
	wxCursor     mNormalCursor;
	bool         mCursorChanged;
	int          mOriginalTitleRowLen;

	void DrawPaperBar( twTabInfo& tab, int x, int y, 
					   wxBrush& brush, wxPen& pen, wxDC& dc );

	int GetWholeTabRowLen();

	// adjusts scorllbars to fit around tabs

	virtual void OnTabAdded( twTabInfo* pInfo );

	// sets smaller font for page-labels

	virtual wxFont GetLabelingFont();

public:
	int          mTitleRowStart;
	int          mResizeNailGap;
	int          mTabTrianGap;  
	int          mTitleRowLen;	         // actual title row length
	int          mAdjustableTitleRowLen; // setup by dragging mini-sash 
	                                     // with the mosue pointer
	int          mCurentRowOfs;

	wxBrush      mGrayBrush;
	wxBrush      mWhiteBrush;

public:
	wxPaggedWindow();
	~wxPaggedWindow();

	// NOTE:: use public methods of the base class
	//        to add "pages" to this window

	/* misc accessors */

	// below two methods should be called after
	// the tabs were added (AddTab(..)). Set up
	// these scrollbars to match the needs of the
	// tabs added into this area

	wxScrollBar& GetVerticalScrollBar();
	wxScrollBar& GetHorizontalScrollBar();

	virtual void DrawDecorations( wxDC& dc );

	// return -1, if non of the title bars was hitted,
	// otherwise the index of the hitted tab title bar

	virtual int HitTest( const wxPoint& pos );

	virtual void RecalcLayout( bool andRepaint = TRUE );

	// event handlers

	void OnPaint( wxPaintEvent& event );
	void OnSize ( wxSizeEvent& event );
	void OnLButtonDown( wxMouseEvent& event );
	void OnLButtonUp  ( wxMouseEvent& event );
	void OnMouseMove  ( wxMouseEvent& event );
	void OnScroll     ( wxScrollEvent& event );

	DECLARE_EVENT_TABLE()
};

// helper structure of wxTabbedWindow

class twTabInfo : public wxObject
{
	DECLARE_DYNAMIC_CLASS( twTabInfo )
public:
	twTabInfo();
	~twTabInfo();

	int ImgWidth();
	int ImgHeight();
	int ImageToTxtGap( int prefGap );

	bool HasImg();
	wxBitmap& GetImg();
	bool HasText();
	wxString& GetText();
	wxWindow& GetContent();

public:
	wxWindow* mpContent;
	wxBitmap  mBitMap;  

	wxString  mText;
	wxSize    mDims;

	// used for serialization
	wxString  mImageFile;
	long      mImageType;

};

#endif