magick_rust/wand/
pixel.rs

1/*
2 * Copyright 2016 Mattis Marjak
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16use std::ffi::{CStr, CString};
17use std::fmt;
18
19use crate::bindings;
20use crate::result::MagickError;
21
22use super::MagickTrue;
23use crate::result::Result;
24
25#[derive(Default, Debug)]
26pub struct HSL {
27    pub hue: f64,
28    pub saturation: f64,
29    pub lightness: f64,
30}
31
32wand_common!(
33    PixelWand,
34    NewPixelWand,
35    ClearPixelWand,
36    IsPixelWand,
37    ClonePixelWand,
38    DestroyPixelWand,
39    PixelClearException,
40    PixelGetExceptionType,
41    PixelGetException
42);
43
44impl PixelWand {
45    pub fn is_similar(&self, other: &PixelWand, fuzz: f64) -> bool {
46        let result = unsafe { bindings::IsPixelWandSimilar(self.wand, other.wand, fuzz) };
47        result == MagickTrue
48    }
49
50    pub fn get_hsl(&self) -> HSL {
51        let mut hsl = HSL::default();
52        unsafe {
53            bindings::PixelGetHSL(
54                self.wand,
55                &mut hsl.hue as *mut _,
56                &mut hsl.saturation as *mut _,
57                &mut hsl.lightness as *mut _,
58            );
59        }
60        hsl
61    }
62
63    pub fn set_hsl(&self, hsl: &HSL) {
64        unsafe {
65            bindings::PixelSetHSL(self.wand, hsl.hue, hsl.saturation, hsl.lightness);
66        }
67    }
68
69    pub fn fmt_w_prefix(&self, f: &mut fmt::Formatter, prefix: &str) -> fmt::Result {
70        let mut prf = prefix.to_string();
71        prf.push_str("    ");
72        writeln!(f, "{prefix}PixelWand {{")?;
73        writeln!(f, "{}Exception: {:?}", prf, self.get_exception())?;
74        writeln!(f, "{}IsWand: {:?}", prf, self.is_wand())?;
75        self.fmt_unchecked_settings(f, &prf)?;
76        self.fmt_color_settings(f, &prf)?;
77        writeln!(f, "{prefix}}}")
78    }
79
80    pub fn set_color(&mut self, s: &str) -> Result<()> {
81        let c_string = CString::new(s).map_err(|_| "could not convert to cstring")?;
82        match unsafe { bindings::PixelSetColor(self.wand, c_string.as_ptr()) } {
83            MagickTrue => Ok(()),
84            _ => Err(MagickError(self.get_exception()?.0)),
85        }
86    }
87
88    string_get!(get_color_as_string, PixelGetColorAsString);
89    string_get!(
90        get_color_as_normalized_string,
91        PixelGetColorAsNormalizedString
92    );
93
94    set_get_unchecked!(
95        get_color_count, set_color_count, PixelGetColorCount, PixelSetColorCount,   usize
96        get_index,       set_index,       PixelGetIndex,      PixelSetIndex,        bindings::Quantum
97        get_fuzz,        set_fuzz,        PixelGetFuzz,       PixelSetFuzz,         f64
98    );
99
100    color_set_get!(
101        get_alpha,        get_alpha_quantum,       set_alpha,        set_alpha_quantum,
102        PixelGetAlpha,    PixelGetAlphaQuantum,    PixelSetAlpha,    PixelSetAlphaQuantum
103        get_black,        get_black_quantum,       set_black,        set_black_quantum,
104        PixelGetBlack,    PixelGetBlackQuantum,    PixelSetBlack,    PixelSetBlackQuantum
105        get_blue,         get_blue_quantum,        set_blue,         set_blue_quantum,
106        PixelGetBlue,     PixelGetBlueQuantum,     PixelSetBlue,     PixelSetBlueQuantum
107        get_cyan,         get_cyan_quantum,        set_cyan,         set_cyan_quantum,
108        PixelGetCyan,     PixelGetCyanQuantum,     PixelSetCyan,     PixelSetCyanQuantum
109        get_green,        get_green_quantum,       set_green,        set_green_quantum,
110        PixelGetGreen,    PixelGetGreenQuantum,    PixelSetGreen,    PixelSetGreenQuantum
111        get_magenta,      get_magenta_quantum,     set_magenta,      set_magenta_quantum,
112        PixelGetMagenta,  PixelGetMagentaQuantum,  PixelSetMagenta,  PixelSetMagentaQuantum
113        get_red,          get_red_quantum,         set_red,          set_red_quantum,
114        PixelGetRed,      PixelGetRedQuantum,      PixelSetRed,      PixelSetRedQuantum
115        get_yellow,       get_yellow_quantum,      set_yellow,       set_yellow_quantum,
116        PixelGetYellow,   PixelGetYellowQuantum,   PixelSetYellow,   PixelSetYellowQuantum
117    );
118}
119
120impl fmt::Debug for PixelWand {
121    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
122        self.fmt_w_prefix(f, "")
123    }
124}
magick_rust/wand/pixel.rs

magick_rust/wand/
pixel.rs
