Replace the C++ implementation with the Rust port

The Rust port (formerly gipfel-rs) is now the official successor to the
FLTK/GSL C++ code base. This squashes the port into a single commit and
removes the C++ sources (they remain in the git history below).

Layout:
  crates/gipfel-core  headless core: hills, panorama geometry, projections
                      (maxima-generated derivatives), pure-Rust LM fit,
                      gipfel: JPEG comment + EXIF I/O, profiles, stitching
  crates/gipfel-cli   command-line tools (export, info, stitch, profiles)
  crates/gipfel-app   Cosmic DE (libcosmic) GUI, binary name `gipfel`
  codegen/            maxima scripts + regen.sh for the projection code
  tests/              golden files + C++ reference harnesses (historical)

The original README is kept for now; it will be updated to describe the
Rust build. gipfel.dat, AUTHORS, ChangeLog and NEWS are unchanged.

1 files changed, 0 insertions, 59 deletions

diff --git a/src/ScreenDump.cxx b/src/ScreenDump.cxx
deleted file mode 100644
index f331a76..0000000
--- a/src/ScreenDump.cxx
+++ /dev/null
@@ -1,59 +0,0 @@
-//
-// Copyright 2009 Johannes Hofmann <Johannes.Hofmann@gmx.de>
-//
-// This software may be used and distributed according to the terms
-// of the GNU General Public License, incorporated herein by reference.
-
-#include <FL/Fl.H>
-#include <FL/x.H>
-#include <FL/fl_draw.H>
-
-#include "ScreenDump.H"
-
-ScreenDump::ScreenDump(Fl_Widget *widget) {
-	Fl_Offscreen offscreen;
-	int x, y;
-
-	x = widget->x();
-	y = widget->y();
-	w = widget->w();
-	h = widget->h();
-
-	Fl::flush();
-	widget->resize(0, 0, w, h);
-
-	offscreen = fl_create_offscreen(w, h);
-	fl_begin_offscreen(offscreen);
-	widget->redraw();
-	widget->draw();
-	fl_color(FL_YELLOW);
-	fl_draw("created with gipfel", w - 80, h - 10);
-	rgb = fl_read_image(NULL, 0, 0, w, h);
-	fl_end_offscreen();
-	fl_delete_offscreen(offscreen);
-
-	widget->resize(x, y, w, h);
-}
-
-ScreenDump::~ScreenDump() {
-	if (rgb)
-		delete[] rgb;
-}
-
-int
-ScreenDump::save(OutputImage *out) {
-	if (!rgb)
-		return 1;
-
-	out->init(w, h);
-
-	for (int y = 0; y < h; y++) {
-		for (int x = 0; x < w; x++) {
-			unsigned char *px = &rgb[(y * w + x) * 3];
-			out->set_pixel(x, px[0] * 255, px[1] * 255, px[2] * 255);
-		}
-		out->next_line();
-	}
-
-	return out->done();
-}