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- #import "draw.h"
-
- /*
- * This line is just a stub to get genstrings to generate
- * a .strings file entry for the name of this type of Graphic.
- * The name is used in the Undo New <Whatever> menu item.
- *
- * NXLocalString("Curve", NULL, "Name of the tool that draws curves, i.e., the %s of the New %s operation.")
- */
-
- @implementation Curve
-
- + initialize
- /*
- * This bumps the class version so that we can compatibly read
- * old Graphic objects out of an archive.
- */
- {
- [Curve setVersion:1];
- return self;
- }
-
- - (float)arrowAngle:(int)corner
- /*
- * Since our control points are at a 90 degree angle, we'll draw our arrows
- * at 90 degree angles (however, this method breaks down a bit as the bounds
- * get very skinny--perhaps a better one could be found).
- */
- {
- if (gFlags.downhill) {
- switch (corner) {
- case UPPER_LEFT: return 180.0;
- case LOWER_RIGHT: return - 90.0;
- }
- } else {
- switch (corner) {
- case UPPER_RIGHT: return 0.0;
- case LOWER_LEFT: return -90.0;
- }
- }
- return 0.0;
- }
-
- - drawLine
- /*
- * Overridden from our superclass (Line).
- * This is called from the draw method to actually do the drawing of the line,
- * that way, we can inherit the arrow drawing, etc ...
- */
- {
- if (gFlags.downhill) {
- PSCurve(bounds.origin.x, bounds.origin.y + bounds.size.height,
- bounds.origin.x + bounds.size.width,
- bounds.origin.y + bounds.size.height,
- bounds.origin.x + bounds.size.width,
- bounds.origin.y + bounds.size.height,
- bounds.origin.x + bounds.size.width, bounds.origin.y);
- } else {
- PSCurve(bounds.origin.x, bounds.origin.y,
- bounds.origin.x,
- bounds.origin.y + bounds.size.height,
- bounds.origin.x,
- bounds.origin.y + bouRTqsize.height,
- bounds.origin.x + bounds.size.width,
- bounds.origin.y + bounds.size.height);
- }
- return self;
- }
-
- - (BOOL)hit:(const NXPoint *)p
- /*
- * Line only gets a hit if the mouse is within some tolerance of the line.
- * Obviously that algorithm doesn't work for a curve. We could come up
- * with the proper algorithm to only hit a curve if it is within a tolerance,
- * but that would be complicated so we take the easy way out and just
- * get a hit if it is anywhere in the bounds. It is unfortunate that we
- * have to copy code from Graphic to accomplish this. Perhaps a better
- * way exists?
- */
- {
- return (!gFlags.locked && gFlags.active && NXMouseInRect(p, &bounds, NO));
- }
-
- @end
-
-