Added revamped Object Graphics Library (for node/arc diagrams).
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@305 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Julian Smart
805
utils/ogl/src/misc.cpp
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805
utils/ogl/src/misc.cpp
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@@ -0,0 +1,805 @@
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/////////////////////////////////////////////////////////////////////////////
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// Name: misc.cpp
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// Purpose: Miscellaneous OGL support functions
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// Author: Julian Smart
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// Modified by:
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// Created: 12/07/98
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// RCS-ID: $Id$
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// Copyright: (c) Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifdef __GNUG__
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#pragma implementation "misc.h"
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#endif
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// For compilers that support precompilation, includes "wx.h".
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#include <wx/wxprec.h>
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#include <wx/wx.h>
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#endif
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#ifdef PROLOGIO
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#include <wx/wxexpr.h>
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#endif
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#include <wx/types.h>
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#if USE_IOSTREAMH
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#include <iostream.h>
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#else
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#include <iostream>
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#endif
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#include <ctype.h>
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#include <math.h>
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#include <stdlib.h>
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#include "basic.h"
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#include "basicp.h"
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#include "misc.h"
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#include "constrnt.h"
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#include "composit.h"
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wxFont *g_oglNormalFont;
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wxPen *black_pen;
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wxPen *white_background_pen;
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wxPen *transparent_pen;
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wxBrush *white_background_brush;
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wxPen *black_foreground_pen;
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char *GraphicsBuffer = NULL;
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wxCursor *GraphicsBullseyeCursor = NULL;
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wxList wxObjectCopyMapping(wxKEY_INTEGER);
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void wxOGLInitialize()
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{
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GraphicsBullseyeCursor = new wxCursor(wxCURSOR_BULLSEYE);
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g_oglNormalFont = new wxFont(12, wxMODERN, wxNORMAL, wxNORMAL);
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black_pen = new wxPen("BLACK", 1, wxSOLID);
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white_background_pen = new wxPen("WHITE", 1, wxSOLID);
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transparent_pen = new wxPen("WHITE", 1, wxTRANSPARENT);
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white_background_brush = new wxBrush("WHITE", wxSOLID);
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black_foreground_pen = new wxPen("BLACK", 1, wxSOLID);
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OGLInitializeConstraintTypes();
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// Initialize big buffer used when writing images
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GraphicsBuffer = new char[3000];
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if (!oglPopupDivisionMenu)
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{
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oglPopupDivisionMenu = new wxMenu("", (wxFunction)oglGraphicsDivisionMenuProc);
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oglPopupDivisionMenu->Append(DIVISION_MENU_SPLIT_HORIZONTALLY, "Split horizontally");
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oglPopupDivisionMenu->Append(DIVISION_MENU_SPLIT_VERTICALLY, "Split vertically");
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oglPopupDivisionMenu->AppendSeparator();
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oglPopupDivisionMenu->Append(DIVISION_MENU_EDIT_LEFT_EDGE, "Edit left edge");
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oglPopupDivisionMenu->Append(DIVISION_MENU_EDIT_TOP_EDGE, "Edit top edge");
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}
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}
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void wxOGLCleanUp()
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{
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if (GraphicsBuffer)
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{
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delete[] GraphicsBuffer;
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GraphicsBuffer = NULL;
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}
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GraphicsBuffer = NULL;
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if (oglPopupDivisionMenu)
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{
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delete oglPopupDivisionMenu;
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oglPopupDivisionMenu = NULL;
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}
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}
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wxFont *MatchFont(int point_size)
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{
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wxFont *font = wxTheFontList->FindOrCreateFont(point_size, wxSWISS, wxNORMAL, wxNORMAL);
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#if 0
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switch (point_size)
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{
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case 4:
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font = swiss_font_4;
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break;
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case 6:
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font = swiss_font_6;
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break;
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case 8:
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font = swiss_font_8;
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break;
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case 12:
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font = swiss_font_12;
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break;
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case 14:
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font = swiss_font_14;
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break;
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case 18:
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font = swiss_font_18;
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break;
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case 24:
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font = swiss_font_24;
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break;
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default:
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case 10:
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font = swiss_font_10;
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break;
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}
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#endif
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return font;
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}
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int FontSizeDialog(wxFrame *parent, int old_size)
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{
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if (old_size <= 0)
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old_size = 10;
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char buf[40];
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sprintf(buf, "%d", old_size);
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wxString ans = wxGetTextFromUser("Enter point size", "Font size", buf, parent);
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if (ans == "")
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return 0;
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int new_size = atoi(ans);
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if ((new_size <= 0) || (new_size > 40))
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{
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wxMessageBox("Invalid point size!", "Error", wxOK);
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return 0;
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}
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return new_size;
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/*
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char *strings[8];
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strings[0] = "4";
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strings[1] = "6";
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strings[2] = "8";
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strings[3] = "10";
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strings[4] = "12";
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strings[5] = "14";
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strings[6] = "18";
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strings[7] = "24";
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char *ans = wxGetSingleChoice("Choose", "Choose a font size", 8, strings, parent);
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if (ans)
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{
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int size;
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sscanf(ans, "%d", &size);
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return MatchFont(size);
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}
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else return NULL;
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*/
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}
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// Centre a list of strings in the given box. xOffset and yOffset are the
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// the positions that these lines should be relative to, and this might be
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// the same as m_xpos, m_ypos, but might be zero if formatting from left-justifying.
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void CentreText(wxDC& dc, wxList *text_list,
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float m_xpos, float m_ypos, float width, float height,
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int formatMode)
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{
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int n = text_list->Number();
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if (!text_list || (n == 0))
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return;
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// First, get maximum dimensions of box enclosing text
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float char_height = 0;
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float max_width = 0;
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float current_width = 0;
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// Store text extents for speed
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float *widths = new float[n];
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wxNode *current = text_list->First();
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int i = 0;
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while (current)
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{
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wxShapeTextLine *line = (wxShapeTextLine *)current->Data();
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dc.GetTextExtent(line->GetText(), ¤t_width, &char_height);
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widths[i] = current_width;
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if (current_width > max_width)
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max_width = current_width;
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current = current->Next();
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i ++;
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}
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float max_height = n*char_height;
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float xoffset, yoffset, xOffset, yOffset;
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if (formatMode & FORMAT_CENTRE_VERT)
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{
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if (max_height < height)
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yoffset = (float)(m_ypos - (height/2.0) + (height - max_height)/2.0);
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else
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yoffset = (float)(m_ypos - (height/2.0));
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yOffset = m_ypos;
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}
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else
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{
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yoffset = 0.0;
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yOffset = 0.0;
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}
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if (formatMode & FORMAT_CENTRE_HORIZ)
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{
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xoffset = (float)(m_xpos - width/2.0);
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xOffset = m_xpos;
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}
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else
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{
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xoffset = 0.0;
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xOffset = 0.0;
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}
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current = text_list->First();
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i = 0;
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while (current)
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{
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wxShapeTextLine *line = (wxShapeTextLine *)current->Data();
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float x;
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if ((formatMode & FORMAT_CENTRE_HORIZ) && (widths[i] < width))
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x = (float)((width - widths[i])/2.0 + xoffset);
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else
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x = xoffset;
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float y = (float)(i*char_height + yoffset);
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line->SetX( x - xOffset ); line->SetY( y - yOffset );
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current = current->Next();
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i ++;
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}
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delete widths;
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}
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// Centre a list of strings in the given box
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void CentreTextNoClipping(wxDC& dc, wxList *text_list,
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float m_xpos, float m_ypos, float width, float height)
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{
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int n = text_list->Number();
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if (!text_list || (n == 0))
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return;
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// First, get maximum dimensions of box enclosing text
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float char_height = 0;
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float max_width = 0;
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float current_width = 0;
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// Store text extents for speed
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float *widths = new float[n];
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wxNode *current = text_list->First();
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int i = 0;
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while (current)
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{
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wxShapeTextLine *line = (wxShapeTextLine *)current->Data();
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dc.GetTextExtent(line->GetText(), ¤t_width, &char_height);
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widths[i] = current_width;
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if (current_width > max_width)
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max_width = current_width;
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current = current->Next();
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i ++;
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}
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float max_height = n*char_height;
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float yoffset = (float)(m_ypos - (height/2.0) + (height - max_height)/2.0);
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float xoffset = (float)(m_xpos - width/2.0);
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current = text_list->First();
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i = 0;
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while (current)
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{
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wxShapeTextLine *line = (wxShapeTextLine *)current->Data();
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float x = (float)((width - widths[i])/2.0 + xoffset);
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float y = (float)(i*char_height + yoffset);
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line->SetX( x - m_xpos ); line->SetY( y - m_ypos );
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current = current->Next();
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i ++;
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}
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delete widths;
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}
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void GetCentredTextExtent(wxDC& dc, wxList *text_list,
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float m_xpos, float m_ypos, float width, float height,
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float *actual_width, float *actual_height)
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{
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int n = text_list->Number();
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if (!text_list || (n == 0))
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{
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*actual_width = 0;
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*actual_height = 0;
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return;
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}
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// First, get maximum dimensions of box enclosing text
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float char_height = 0;
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float max_width = 0;
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float current_width = 0;
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wxNode *current = text_list->First();
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int i = 0;
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while (current)
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{
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wxShapeTextLine *line = (wxShapeTextLine *)current->Data();
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dc.GetTextExtent(line->GetText(), ¤t_width, &char_height);
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if (current_width > max_width)
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max_width = current_width;
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current = current->Next();
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i ++;
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}
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*actual_height = n*char_height;
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*actual_width = max_width;
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}
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// Format a string to a list of strings that fit in the given box.
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// Interpret %n and 10 or 13 as a new line.
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wxList *FormatText(wxDC& dc, const wxString& text, float width, float height, int formatMode)
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{
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// First, parse the string into a list of words
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wxList word_list;
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// Make new lines into NULL strings at this point
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int i = 0; int j = 0; int len = strlen(text);
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char word[200]; word[0] = 0;
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bool end_word = FALSE; bool new_line = FALSE;
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while (i < len)
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{
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switch (text[i])
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{
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case '%':
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{
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i ++;
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if (i == len)
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{ word[j] = '%'; j ++; }
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else
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{
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if (text[i] == 'n')
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{ new_line = TRUE; end_word = TRUE; i++; }
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else
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{ word[j] = '%'; j ++; word[j] = text[i]; j ++; i ++; }
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}
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break;
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}
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case 10:
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{
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new_line = TRUE; end_word = TRUE; i++;
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break;
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}
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case 13:
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{
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new_line = TRUE; end_word = TRUE; i++;
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}
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case ' ':
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{
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end_word = TRUE;
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i ++;
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break;
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}
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default:
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{
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word[j] = text[i];
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j ++; i ++;
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break;
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}
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}
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if (i == len) end_word = TRUE;
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if (end_word)
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{
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word[j] = 0;
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j = 0;
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word_list.Append((wxObject *)copystring(word));
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end_word = FALSE;
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}
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if (new_line)
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{
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word_list.Append((wxObject *)NULL);
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new_line = FALSE;
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}
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}
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// Now, make a list of strings which can fit in the box
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wxList *string_list = new wxList;
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char buffer[400];
|
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buffer[0] = 0;
|
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wxNode *node = word_list.First();
|
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float x, y;
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while (node)
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{
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char *keep_string = copystring(buffer);
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|
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char *s = (char *)node->Data();
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||||
if (!s)
|
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{
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// FORCE NEW LINE
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if (strlen(keep_string) > 0)
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||||
string_list->Append((wxObject *)keep_string);
|
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else
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||||
delete[] keep_string;
|
||||
|
||||
buffer[0] = 0;
|
||||
}
|
||||
else
|
||||
{
|
||||
if (buffer[0] != 0)
|
||||
strcat(buffer, " ");
|
||||
|
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strcat(buffer, s);
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dc.GetTextExtent(buffer, &x, &y);
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|
||||
// Don't fit within the bounding box if we're fitting shape to contents
|
||||
if ((x > width) && !(formatMode & FORMAT_SIZE_TO_CONTENTS))
|
||||
{
|
||||
// Deal with first word being wider than box
|
||||
if (strlen(keep_string) > 0)
|
||||
string_list->Append((wxObject *)keep_string);
|
||||
else
|
||||
delete[] keep_string;
|
||||
|
||||
buffer[0] = 0;
|
||||
strcat(buffer, s);
|
||||
delete[] s;
|
||||
}
|
||||
else
|
||||
delete[] keep_string;
|
||||
}
|
||||
|
||||
node = node->Next();
|
||||
}
|
||||
if (buffer[0] != 0)
|
||||
string_list->Append((wxObject *)copystring(buffer));
|
||||
|
||||
return string_list;
|
||||
}
|
||||
|
||||
void DrawFormattedText(wxDC& dc, wxList *text_list,
|
||||
float m_xpos, float m_ypos, float width, float height,
|
||||
int formatMode)
|
||||
{
|
||||
float xoffset, yoffset;
|
||||
if (formatMode & FORMAT_CENTRE_HORIZ)
|
||||
xoffset = m_xpos;
|
||||
else
|
||||
xoffset = (float)(m_xpos - (width / 2.0));
|
||||
|
||||
if (formatMode & FORMAT_CENTRE_VERT)
|
||||
yoffset = m_ypos;
|
||||
else
|
||||
yoffset = (float)(m_ypos - (height / 2.0));
|
||||
|
||||
dc.SetClippingRegion(
|
||||
(float)(m_xpos - width/2.0), (float)(m_ypos - height/2.0),
|
||||
(float)width, (float)height);
|
||||
|
||||
wxNode *current = text_list->First();
|
||||
while (current)
|
||||
{
|
||||
wxShapeTextLine *line = (wxShapeTextLine *)current->Data();
|
||||
|
||||
dc.DrawText(line->GetText(), xoffset + line->GetX(), yoffset + line->GetY());
|
||||
current = current->Next();
|
||||
}
|
||||
|
||||
dc.DestroyClippingRegion();
|
||||
}
|
||||
|
||||
/*
|
||||
* Find centroid given list of points comprising polyline
|
||||
*
|
||||
*/
|
||||
|
||||
void find_polyline_centroid(wxList *points, float *x, float *y)
|
||||
{
|
||||
float xcount = 0;
|
||||
float ycount = 0;
|
||||
|
||||
wxNode *node = points->First();
|
||||
while (node)
|
||||
{
|
||||
wxRealPoint *point = (wxRealPoint *)node->Data();
|
||||
xcount += point->x;
|
||||
ycount += point->y;
|
||||
node = node->Next();
|
||||
}
|
||||
|
||||
*x = (xcount/points->Number());
|
||||
*y = (ycount/points->Number());
|
||||
}
|
||||
|
||||
/*
|
||||
* Check that (x1, y1) -> (x2, y2) hits (x3, y3) -> (x4, y4).
|
||||
* If so, ratio1 gives the proportion along the first line
|
||||
* that the intersection occurs (or something like that).
|
||||
* Used by functions below.
|
||||
*
|
||||
*/
|
||||
void check_line_intersection(float x1, float y1, float x2, float y2,
|
||||
float x3, float y3, float x4, float y4,
|
||||
float *ratio1, float *ratio2)
|
||||
{
|
||||
float denominator_term = (y4 - y3)*(x2 - x1) - (y2 - y1)*(x4 - x3);
|
||||
float numerator_term = (x3 - x1)*(y4 - y3) + (x4 - x3)*(y1 - y3);
|
||||
|
||||
float line_constant;
|
||||
float length_ratio = 1.0;
|
||||
float k_line = 1.0;
|
||||
|
||||
// Check for parallel lines
|
||||
if ((denominator_term < 0.005) && (denominator_term > -0.005))
|
||||
line_constant = -1.0;
|
||||
else
|
||||
line_constant = numerator_term/denominator_term;
|
||||
|
||||
// Check for intersection
|
||||
if ((line_constant < 1.0) && (line_constant > 0.0))
|
||||
{
|
||||
// Now must check that other line hits
|
||||
if (((y4 - y3) < 0.005) && ((y4 - y3) > -0.005))
|
||||
k_line = ((x1 - x3) + line_constant*(x2 - x1))/(x4 - x3);
|
||||
else
|
||||
k_line = ((y1 - y3) + line_constant*(y2 - y1))/(y4 - y3);
|
||||
|
||||
if ((k_line >= 0.0) && (k_line < 1.0))
|
||||
length_ratio = line_constant;
|
||||
else
|
||||
k_line = 1.0;
|
||||
}
|
||||
*ratio1 = length_ratio;
|
||||
*ratio2 = k_line;
|
||||
}
|
||||
|
||||
/*
|
||||
* Find where (x1, y1) -> (x2, y2) hits one of the lines in xvec, yvec.
|
||||
* (*x3, *y3) is the point where it hits.
|
||||
*
|
||||
*/
|
||||
void find_end_for_polyline(float n, float xvec[], float yvec[],
|
||||
float x1, float y1, float x2, float y2, float *x3, float *y3)
|
||||
{
|
||||
int i;
|
||||
float lastx = xvec[0];
|
||||
float lasty = yvec[0];
|
||||
|
||||
float min_ratio = 1.0;
|
||||
float line_ratio;
|
||||
float other_ratio;
|
||||
|
||||
for (i = 1; i < n; i++)
|
||||
{
|
||||
check_line_intersection(x1, y1, x2, y2, lastx, lasty, xvec[i], yvec[i],
|
||||
&line_ratio, &other_ratio);
|
||||
lastx = xvec[i];
|
||||
lasty = yvec[i];
|
||||
|
||||
if (line_ratio < min_ratio)
|
||||
min_ratio = line_ratio;
|
||||
}
|
||||
|
||||
// Do last (implicit) line if last and first floats are not identical
|
||||
if (!(xvec[0] == lastx && yvec[0] == lasty))
|
||||
{
|
||||
check_line_intersection(x1, y1, x2, y2, lastx, lasty, xvec[0], yvec[0],
|
||||
&line_ratio, &other_ratio);
|
||||
|
||||
if (line_ratio < min_ratio)
|
||||
min_ratio = line_ratio;
|
||||
}
|
||||
|
||||
*x3 = (x1 + (x2 - x1)*min_ratio);
|
||||
*y3 = (y1 + (y2 - y1)*min_ratio);
|
||||
|
||||
}
|
||||
|
||||
/*
|
||||
* Find where the line hits the box.
|
||||
*
|
||||
*/
|
||||
|
||||
void find_end_for_box(float width, float height,
|
||||
float x1, float y1, // Centre of box (possibly)
|
||||
float x2, float y2, // other end of line
|
||||
float *x3, float *y3) // End on box edge
|
||||
{
|
||||
float xvec[5];
|
||||
float yvec[5];
|
||||
|
||||
xvec[0] = (float)(x1 - width/2.0);
|
||||
yvec[0] = (float)(y1 - height/2.0);
|
||||
xvec[1] = (float)(x1 - width/2.0);
|
||||
yvec[1] = (float)(y1 + height/2.0);
|
||||
xvec[2] = (float)(x1 + width/2.0);
|
||||
yvec[2] = (float)(y1 + height/2.0);
|
||||
xvec[3] = (float)(x1 + width/2.0);
|
||||
yvec[3] = (float)(y1 - height/2.0);
|
||||
xvec[4] = (float)(x1 - width/2.0);
|
||||
yvec[4] = (float)(y1 - height/2.0);
|
||||
|
||||
find_end_for_polyline(5, xvec, yvec, x2, y2, x1, y1, x3, y3);
|
||||
}
|
||||
|
||||
/*
|
||||
* Find where the line hits the circle.
|
||||
*
|
||||
*/
|
||||
|
||||
void find_end_for_circle(float radius,
|
||||
float x1, float y1, // Centre of circle
|
||||
float x2, float y2, // Other end of line
|
||||
float *x3, float *y3)
|
||||
{
|
||||
float H = (float)sqrt((x2 - x1)*(x2 - x1) + (y2 - y1)*(y2 - y1));
|
||||
|
||||
if (H == 0.0)
|
||||
{
|
||||
*x3 = x1;
|
||||
*y3 = y1;
|
||||
}
|
||||
else
|
||||
{
|
||||
*y3 = radius * (y2 - y1)/H + y1;
|
||||
*x3 = radius * (x2 - x1)/H + x1;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Given the line (x1, y1) -> (x2, y2), and an arrow size of given length and width,
|
||||
* return the position of the tip of the arrow and the left and right vertices of the arrow.
|
||||
*
|
||||
*/
|
||||
|
||||
void get_arrow_points(float x1, float y1, float x2, float y2,
|
||||
float length, float width,
|
||||
float *tip_x, float *tip_y,
|
||||
float *side1_x, float *side1_y,
|
||||
float *side2_x, float *side2_y)
|
||||
{
|
||||
float l = (float)sqrt((x2 - x1)*(x2 - x1) + (y2 - y1)*(y2 - y1));
|
||||
|
||||
if (l < 0.01)
|
||||
l = (float) 0.01;
|
||||
|
||||
float i_bar = (x2 - x1)/l;
|
||||
float j_bar = (y2 - y1)/l;
|
||||
|
||||
float x3 = (- length*i_bar) + x2;
|
||||
float y3 = (- length*j_bar) + y2;
|
||||
|
||||
*side1_x = width*(-j_bar) + x3;
|
||||
*side1_y = width*i_bar + y3;
|
||||
|
||||
*side2_x = -width*(-j_bar) + x3;
|
||||
*side2_y = -width*i_bar + y3;
|
||||
|
||||
*tip_x = x2; *tip_y = y2;
|
||||
}
|
||||
|
||||
/*
|
||||
* Given an ellipse and endpoints of a line, returns the point at which
|
||||
* the line touches the ellipse in values x4, y4.
|
||||
* This function assumes that the centre of the ellipse is at x1, y1, and the
|
||||
* ellipse has a width of width1 and a height of height1. It also assumes you are
|
||||
* wanting to draw an arc FROM point x2, y2 TOWARDS point x3, y3.
|
||||
* This function calculates the x,y coordinates of the intersection point of
|
||||
* the arc with the ellipse.
|
||||
* Author: Ian Harrison
|
||||
*/
|
||||
|
||||
void draw_arc_to_ellipse(float x1, float y1, float width1, float height1, float x2, float y2, float x3, float y3,
|
||||
float *x4, float *y4)
|
||||
{
|
||||
float a1 = (float)(width1/2.0);
|
||||
float b1 = (float)(height1/2.0);
|
||||
|
||||
// These are required to give top left x and y coordinates for DrawEllipse
|
||||
// float top_left_x1 = (float)(x1 - a1);
|
||||
// float top_left_y1 = (float)(y1 - b1);
|
||||
/*
|
||||
// Check for vertical line
|
||||
if (fabs(x2 - x3) < 0.05)
|
||||
{
|
||||
*x4 = x3;
|
||||
if (y2 < y3)
|
||||
*y4 = (float)(y1 - b1);
|
||||
else
|
||||
*y4 = (float)(y1 + b1);
|
||||
return;
|
||||
}
|
||||
*/
|
||||
// Check that x2 != x3
|
||||
if (fabs(x2 - x3) < 0.05)
|
||||
{
|
||||
*x4 = x2;
|
||||
if (y3 > y2)
|
||||
*y4 = (float)(y1 - sqrt((b1*b1 - (((x2-x1)*(x2-x1))*(b1*b1)/(a1*a1)))));
|
||||
else
|
||||
*y4 = (float)(y1 + sqrt((b1*b1 - (((x2-x1)*(x2-x1))*(b1*b1)/(a1*a1)))));
|
||||
return;
|
||||
}
|
||||
|
||||
// Calculate the x and y coordinates of the point where arc intersects ellipse
|
||||
|
||||
float A, B, C, D, E, F, G, H, K;
|
||||
float ellipse1_x, ellipse1_y;
|
||||
|
||||
A = (float)(1/(a1 * a1));
|
||||
B = (float)((y3 - y2) * (y3 - y2)) / ((x3 - x2) * (x3 - x2) * b1 * b1);
|
||||
C = (float)(2 * (y3 - y2) * (y2 - y1)) / ((x3 - x2) * b1 * b1);
|
||||
D = (float)((y2 - y1) * (y2 - y1)) / (b1 * b1);
|
||||
E = (float)(A + B);
|
||||
F = (float)(C - (2 * A * x1) - (2 * B * x2));
|
||||
G = (float)((A * x1 * x1) + (B * x2 * x2) - (C * x2) + D - 1);
|
||||
H = (float)((y3 - y2) / (x3 - x2));
|
||||
K = (float)((F * F) - (4 * E * G));
|
||||
|
||||
if (K >= 0)
|
||||
// In this case the line intersects the ellipse, so calculate intersection
|
||||
{
|
||||
if(x2 >= x1)
|
||||
{
|
||||
ellipse1_x = (float)(((F * -1) + sqrt(K)) / (2 * E));
|
||||
ellipse1_y = (float)((H * (ellipse1_x - x2)) + y2);
|
||||
}
|
||||
else
|
||||
{
|
||||
ellipse1_x = (float)(((F * -1) - sqrt(K)) / (2 * E));
|
||||
ellipse1_y = (float)((H * (ellipse1_x - x2)) + y2);
|
||||
}
|
||||
}
|
||||
else
|
||||
// in this case, arc does not intersect ellipse, so just draw arc
|
||||
{
|
||||
ellipse1_x = x3;
|
||||
ellipse1_y = y3;
|
||||
}
|
||||
*x4 = ellipse1_x;
|
||||
*y4 = ellipse1_y;
|
||||
|
||||
/*
|
||||
// Draw a little circle (radius = 2) at the end of the arc where it hits
|
||||
// the ellipse .
|
||||
|
||||
float circle_x = ellipse1_x - 2.0;
|
||||
float circle_y = ellipse1_y - 2.0;
|
||||
m_canvas->DrawEllipse(circle_x, circle_y, 4.0, 4.0);
|
||||
*/
|
||||
}
|
||||
|
||||
// Update a list item from a list of strings
|
||||
void UpdateListBox(wxListBox *item, wxList *list)
|
||||
{
|
||||
item->Clear();
|
||||
if (!list)
|
||||
return;
|
||||
|
||||
wxNode *node = list->First();
|
||||
while (node)
|
||||
{
|
||||
char *s = (char *)node->Data();
|
||||
item->Append(s);
|
||||
node = node->Next();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
Reference in New Issue
Block a user