TempleOSTS_140317.ISO

Demo/Graphics/Speedline.CPP

@@ -0,0 +1,51 @@
+//This is a drawing program
+
+public U0 SpeedLineDemo()
+{
+  I64 msg_code,cnt,x1,y1,x2,y2,p1,p2,color=BLACK;
+  CDC *dc=DCAlias;
+  dc->color=color;
+
+  SettingsPush; //See $LK,"SettingsPush",A="MN:SettingsPush"$
+  Fs->win_inhibit=WIG_TASK_DFT-WIF_FOCUS-WIF_BORDER;
+
+  WinMax;
+  WinBorder;
+  WordStat;
+  DCFill;
+  DocClear;
+  do {
+    msg_code=GetMsg(&p1,&p2,
+      1<<MSG_KEY_DOWN+1<<MSG_IP_L_DOWN+
+      1<<MSG_IP_R_UP);
+    switch (msg_code) {
+      case MSG_IP_R_UP:
+	color=PopUpColor;
+	if (color>=0)
+	  dc->color=color;
+	break;
+      case MSG_IP_L_DOWN:
+	x1=p1; y1=p2;
+	x2=p1; y2=p2;
+	cnt=0;
+	while (msg_code!=MSG_IP_L_UP) {
+	  dc->pen_width=0.04*ip_speed;
+	  GrLine3(dc,x1,y1,0,x2,y2,0);
+	  msg_code=GetMsg(&p1,&p2,
+	    1<<MSG_IP_L_UP+1<<MSG_IP_MOVE);
+	  x1=x2; y1=y2;
+	  x2=p1; y2=p2;
+	}
+	GrLine3(dc,x1,y1,0,x2,y2,0);
+	break;
+      case MSG_KEY_DOWN:
+	break;
+    }
+  } while (msg_code!=MSG_KEY_DOWN || !p1);
+  GetMsg(,,1<<MSG_KEY_UP);
+  DCFill;
+  DCDel(dc);
+  SettingsPop;
+}
+
+SpeedLineDemo;	//Execute when #included