drawTextAlongLine [1007307]

< > BotCompany Repo | #1007307 // drawTextAlongLine

JavaX fragment (include)

import java.awt.geom.*;

static void drawTextAlongLine(Graphics2D g, S text, int x1, int y1, int x2, int y2, int shift) {
  if (y2 == y1 && x2 == x1) ++x2;
  
  new AffineTransform tx;
  double angle = Math.atan2(y2-y1, x2-x1);
  bool flip = abs(angle) > pi()/2;
  if (flip) angle -= pi();
  tx.translate((x1+x2)/2.0, (y1+y2)/2.0);
  tx.rotate(angle);

  AffineTransform old = g.getTransform();
  g.setTransform(tx);
  FontMetrics fm = g.getFontMetrics();
  // int y = shift+fm.getLeading()+fm.getMaxAscent(); // below
  int y = -shift-fm.getMaxDescent(); // above
  g.drawString(text, -fm.stringWidth(text)/2.0f, y);
  g.setTransform(old);
}

Author comment

Began life as a copy of #1007301

Travelled to 13 computer(s): aoiabmzegqzx, bhatertpkbcr, cbybwowwnfue, cfunsshuasjs, gwrvuhgaqvyk, ishqpsrjomds, lpdgvwnxivlt, mqqgnosmbjvj, pyentgdyhuwx, pzhvpgtvlbxg, tslmcundralx, tvejysmllsmz, vouqrxazstgt

Snippet ID:

#1007307

Snippet name:

drawTextAlongLine

Eternal ID of this version:

#1007307/10

Text MD5:

ebf109615ea09580450d72456355fcb1

Author:

stefan

Category:

javax / gui

Type:

JavaX fragment (include)

Public (visible to everyone):

Yes

Archived (hidden from active list):

Created/modified:

2017-03-15 02:33:38

Source code size:

661 bytes / 20 lines

Pitched / IR pitched:

No / No

Views / Downloads:

502 / 483

Version history:

9 change(s)

Referenced in:

[show references]

1	import java.awt.geom.*;
2
3	static void drawTextAlongLine(Graphics2D g, S text, int x1, int y1, int x2, int y2, int shift) {
4	if (y2 == y1 && x2 == x1) ++x2;
5
6	new AffineTransform tx;
7	double angle = Math.atan2(y2-y1, x2-x1);
8	bool flip = abs(angle) > pi()/2;
9	if (flip) angle -= pi();
10	tx.translate((x1+x2)/2.0, (y1+y2)/2.0);
11	tx.rotate(angle);
12
13	AffineTransform old = g.getTransform();
14	g.setTransform(tx);
15	FontMetrics fm = g.getFontMetrics();
16	// int y = shift+fm.getLeading()+fm.getMaxAscent(); // below
17	int y = -shift-fm.getMaxDescent(); // above
18	g.drawString(text, -fm.stringWidth(text)/2.0f, y);
19	g.setTransform(old);
20	}