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- /*
- // (C) COPYRIGHT International Business Machines Corp. 1993
- // All Rights Reserved
- // Licensed Materials - Property of IBM
- // US Government Users Restricted Rights - Use, duplication or
- // disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
- //
-
- //
- // Permission to use, copy, modify, and distribute this software and its
- // documentation for any purpose and without fee is hereby granted, provided
- // that the above copyright notice appear in all copies and that both that
- // copyright notice and this permission notice appear in supporting
- // documentation, and that the name of I.B.M. not be used in advertising
- // or publicity pertaining to distribution of the software without specific,
- // written prior permission. I.B.M. makes no representations about the
- // suitability of this software for any purpose. It is provided "as is"
- // without express or implied warranty.
- //
- // I.B.M. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
- // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL I.B.M.
- // BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- // WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
- // OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- // CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- //
- // Author: John Spitzer, IBM AWS Graphics Systems (Austin)
- //
- */
-
- #include "Linear.h"
- #include <malloc.h>
-
- void new_Linear(LinearPtr this)
- {
- new_Vertex((VertexPtr)this);
- this->SetState = Linear__SetState;
- this->PixelSize = Linear__Size;
- }
-
- void delete_Linear(TestPtr thisTest)
- {
- delete_Vertex(thisTest);
- }
-
- float Linear__Size(TestPtr thisTest)
- {
- LinearPtr this = (LinearPtr)thisTest;
- return this->size * this->lineWidth;
- }
-
- int Linear__SetState(TestPtr thisTest)
- {
- LinearPtr this = (LinearPtr)thisTest;
- GLfloat windowDim;
-
- /* set parent state */
- if (Vertex__SetState(thisTest) == -1) return -1;
-
- /* kick out if lines won't fit within window */
- windowDim = (GLfloat)(min(this->environ.windowWidth, this->environ.windowHeight));
- if (this->size >= windowDim) return -1;
-
- /* set own state */
- if (!this->antiAlias) {
- glDisable(GL_LINE_SMOOTH);
- } else {
- if (this->antiAlias == On) {
- glHint(GL_LINE_SMOOTH_HINT, GL_DONT_CARE);
- } else {
- glHint(GL_LINE_SMOOTH_HINT, this->antiAlias);
- }
- glEnable(GL_LINE_SMOOTH);
- }
-
- glLineWidth(this->lineWidth);
-
- if (!this->lineStipple) {
- glDisable(GL_LINE_STIPPLE);
- } else {
- /* In the future, we may want user defined stipple patterns */
- glLineStipple(1, 0xf0f0);
- glEnable(GL_LINE_STIPPLE);
- }
- return 0;
- }
-