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Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: misc.h
	3	// Purpose: Miscellaneous utilities for OGL
	4	// Author: Julian Smart
	5	// Modified by:
	6	// Created: 12/07/98
	7	// RCS-ID: $Id$
	8	// Copyright: (c) Julian Smart
	9	// Licence: wxWindows licence
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	#ifndef _OGL_MISC_H_
	13	#define _OGL_MISC_H_
	14
	15	#ifdef __GNUG__
	16	#pragma interface "misc.h"
	17	#endif
	18
	19	// List to use when copying objects; may need to associate elements of new objects
	20	// with elements of old objects, e.g. when copying constraint.s
	21	extern wxList oglObjectCopyMapping;
	22
	23	/*
	24	* TEXT FORMATTING FUNCTIONS
	25	*
	26	*/
	27
	28	// Centres the given list of wxShapeTextLine strings in the given box
	29	// (changing the positions in situ). Doesn't actually draw into the DC.
	30	void oglCentreText(wxDC& dc, wxList *text, double m_xpos, double m_ypos,
	31	double width, double height,
	32	int formatMode = FORMAT_CENTRE_HORIZ \| FORMAT_CENTRE_VERT);
	33
	34	// Given a string, returns a list of strings that fit within the given
	35	// width of box. Height is ignored.
	36	wxStringList *oglFormatText(wxDC& dc, const wxString& text, double width, double height, int formatMode = 0);
	37
	38	// Centres the list of wxShapeTextLine strings, doesn't clip.
	39	// Doesn't actually draw into the DC.
	40	void oglCentreTextNoClipping(wxDC& dc, wxList *text_list,
	41	double m_xpos, double m_ypos, double width, double height);
	42
	43	// Gets the maximum width and height of the given list of wxShapeTextLines.
	44	void oglGetCentredTextExtent(wxDC& dc, wxList *text_list,
	45	double m_xpos, double m_ypos, double width, double height,
	46	double actual_width, double actual_height);
	47
	48	// Actually draw the preformatted list of wxShapeTextLines.
	49	void oglDrawFormattedText(wxDC& context, wxList *text_list,
	50	double m_xpos, double m_ypos, double width, double height,
	51	int formatMode = FORMAT_CENTRE_HORIZ \| FORMAT_CENTRE_VERT);
	52
	53	// Give it a list of points, finds the centre.
	54	void oglFindPolylineCentroid(wxList points, double x, double *y);
	55
	56	void oglCheckLineIntersection(double x1, double y1, double x2, double y2,
	57	double x3, double y3, double x4, double y4,
	58	double ratio1, double ratio2);
	59
	60	void oglFindEndForPolyline(double n, double xvec[], double yvec[],
	61	double x1, double y1, double x2, double y2, double x3, double y3);
	62
	63
	64	void oglFindEndForBox(double width, double height,
	65	double x1, double y1, // Centre of box (possibly)
	66	double x2, double y2, // other end of line
	67	double x3, double y3); // End on box edge
	68
	69	void oglFindEndForCircle(double radius,
	70	double x1, double y1, // Centre of circle
	71	double x2, double y2, // Other end of line
	72	double x3, double y3);
	73
	74	void oglGetArrowPoints(double x1, double y1, double x2, double y2,
	75	double length, double width,
	76	double tip_x, double tip_y,
	77	double side1_x, double side1_y,
	78	double side2_x, double side2_y);
	79
	80	/*
	81	* Given an ellipse and endpoints of a line, returns the point at which
	82	* the line touches the ellipse in values x4, y4.
	83	* This function assumes that the centre of the ellipse is at x1, y1, and the
	84	* ellipse has a width of a1 and a height of b1. It also assumes you are
	85	* wanting to draw an arc FROM point x2, y2 TOWARDS point x3, y3.
	86	* This function calculates the x,y coordinates of the intersection point of
	87	* the arc with the ellipse.
	88	* Author: Ian Harrison
	89	*/
	90
	91	void oglDrawArcToEllipse(double x1, double y1, double a1, double b1, double x2, double y2, double x3, double y3,
	92	double x4, double y4);
	93
	94	bool oglRoughlyEqual(double val1, double val2, double tol = 0.00001);
	95
	96	extern wxFont* g_oglNormalFont;
	97	extern wxPen* g_oglBlackPen;
	98	extern wxPen* g_oglWhiteBackgroundPen;
	99	extern wxPen* g_oglTransparentPen;
	100	extern wxBrush* g_oglWhiteBackgroundBrush;
	101	extern wxPen* g_oglBlackForegroundPen;
	102	extern wxCursor* g_oglBullseyeCursor;
	103
	104	extern wxFont* oglMatchFont(int point_size);
	105
	106	extern wxString oglColourToHex(const wxColour& colour);
	107	extern wxColour oglHexToColour(const wxString& hex);
	108	extern void oglDecToHex(unsigned int dec, char *buf);
	109	extern unsigned int oglHexToDec(char* buf);
	110
	111
	112	#endif
	113	// _OGL_MISC_H_