From 5f01c706267c595de92406a32e7f31ef5056c2d0 Mon Sep 17 00:00:00 2001 From: Lucas de Castro Borges Date: Mon, 22 Apr 2024 00:35:53 -0300 Subject: New upstream version 2.0.3pre --- deps/uber-graph/uber-scale.c | 54 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 deps/uber-graph/uber-scale.c (limited to 'deps/uber-graph/uber-scale.c') diff --git a/deps/uber-graph/uber-scale.c b/deps/uber-graph/uber-scale.c new file mode 100644 index 00000000..ead9f988 --- /dev/null +++ b/deps/uber-graph/uber-scale.c @@ -0,0 +1,54 @@ +/* uber-scale.c + * + * Copyright (C) 2010 Christian Hergert + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "uber-scale.h" + +/** + * uber_scale_linear: + * @range: An #UberRange. + * @pixel_range: An #UberRange. + * @value: A pointer to the value to translate. + * @user_data: user data for scale. + * + * An #UberScale function to translate a value to the coordinate system in + * a linear fashion. + * + * Returns: %TRUE if successful; otherwise %FALSE. + * Side effects: None. + */ +gboolean +uber_scale_linear (const UberRange *range, /* IN */ + const UberRange *pixel_range, /* IN */ + gdouble *value, /* IN/OUT */ + gpointer user_data) /* IN */ +{ + #define A (range->range) + #define B (pixel_range->range) + #define C (*value) + if (*value != 0.) { + *value = C * B / A; + } + #undef A + #undef B + #undef C + return TRUE; +} -- cgit v1.2.3