1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
// This file was generated by gir (https://github.com/gtk-rs/gir)
// from gir-files (https://github.com/gtk-rs/gir-files)
// DO NOT EDIT

use crate::PageSetup;
use glib::translate::*;
use std::fmt;
use std::mem;

glib::wrapper! {
    /// A GtkPrintContext encapsulates context information that is required when
    /// drawing pages for printing, such as the cairo context and important
    /// parameters like page size and resolution. It also lets you easily
    /// create [`pango::Layout`][crate::pango::Layout] and [`pango::Context`][crate::pango::Context] objects that match the font metrics
    /// of the cairo surface.
    ///
    /// GtkPrintContext objects gets passed to the `signal::PrintOperation::begin-print`,
    /// `signal::PrintOperation::end-print`, `signal::PrintOperation::request-page-setup` and
    /// `signal::PrintOperation::draw-page` signals on the [`PrintOperation`][crate::PrintOperation].
    ///
    /// ## Using GtkPrintContext in a `signal::PrintOperation::draw-page` callback
    ///
    ///
    ///
    /// **⚠️ The following code is in C ⚠️**
    ///
    /// ```C
    /// static void
    /// draw_page (GtkPrintOperation *operation,
    ///        GtkPrintContext   *context,
    ///        int                page_nr)
    /// {
    ///   cairo_t *cr;
    ///   PangoLayout *layout;
    ///   PangoFontDescription *desc;
    ///
    ///   cr = gtk_print_context_get_cairo_context (context);
    ///
    ///   // Draw a red rectangle, as wide as the paper (inside the margins)
    ///   cairo_set_source_rgb (cr, 1.0, 0, 0);
    ///   cairo_rectangle (cr, 0, 0, gtk_print_context_get_width (context), 50);
    ///
    ///   cairo_fill (cr);
    ///
    ///   // Draw some lines
    ///   cairo_move_to (cr, 20, 10);
    ///   cairo_line_to (cr, 40, 20);
    ///   cairo_arc (cr, 60, 60, 20, 0, M_PI);
    ///   cairo_line_to (cr, 80, 20);
    ///
    ///   cairo_set_source_rgb (cr, 0, 0, 0);
    ///   cairo_set_line_width (cr, 5);
    ///   cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
    ///   cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
    ///
    ///   cairo_stroke (cr);
    ///
    ///   // Draw some text
    ///   layout = gtk_print_context_create_pango_layout (context);
    ///   pango_layout_set_text (layout, "Hello World! Printing is easy", -1);
    ///   desc = pango_font_description_from_string ("sans 28");
    ///   pango_layout_set_font_description (layout, desc);
    ///   pango_font_description_free (desc);
    ///
    ///   cairo_move_to (cr, 30, 20);
    ///   pango_cairo_layout_path (cr, layout);
    ///
    ///   // Font Outline
    ///   cairo_set_source_rgb (cr, 0.93, 1.0, 0.47);
    ///   cairo_set_line_width (cr, 0.5);
    ///   cairo_stroke_preserve (cr);
    ///
    ///   // Font Fill
    ///   cairo_set_source_rgb (cr, 0, 0.0, 1.0);
    ///   cairo_fill (cr);
    ///
    ///   g_object_unref (layout);
    /// }
    /// ```
    ///
    /// Printing support was added in GTK+ 2.10.
    ///
    /// # Implements
    ///
    /// [`trait@glib::ObjectExt`]
    #[doc(alias = "GtkPrintContext")]
    pub struct PrintContext(Object<ffi::GtkPrintContext>);

    match fn {
        type_ => || ffi::gtk_print_context_get_type(),
    }
}

impl PrintContext {
    /// Creates a new [`pango::Context`][crate::pango::Context] that can be used with the
    /// [`PrintContext`][crate::PrintContext].
    ///
    /// # Returns
    ///
    /// a new Pango context for `self`
    #[doc(alias = "gtk_print_context_create_pango_context")]
    pub fn create_pango_context(&self) -> Option<pango::Context> {
        unsafe {
            from_glib_full(ffi::gtk_print_context_create_pango_context(
                self.to_glib_none().0,
            ))
        }
    }

    /// Creates a new [`pango::Layout`][crate::pango::Layout] that is suitable for use
    /// with the [`PrintContext`][crate::PrintContext].
    ///
    /// # Returns
    ///
    /// a new Pango layout for `self`
    #[doc(alias = "gtk_print_context_create_pango_layout")]
    pub fn create_pango_layout(&self) -> Option<pango::Layout> {
        unsafe {
            from_glib_full(ffi::gtk_print_context_create_pango_layout(
                self.to_glib_none().0,
            ))
        }
    }

    /// Obtains the cairo context that is associated with the
    /// [`PrintContext`][crate::PrintContext].
    ///
    /// # Returns
    ///
    /// the cairo context of `self`
    #[doc(alias = "gtk_print_context_get_cairo_context")]
    #[doc(alias = "get_cairo_context")]
    pub fn cairo_context(&self) -> Option<cairo::Context> {
        unsafe {
            from_glib_none(ffi::gtk_print_context_get_cairo_context(
                self.to_glib_none().0,
            ))
        }
    }

    /// Obtains the horizontal resolution of the [`PrintContext`][crate::PrintContext],
    /// in dots per inch.
    ///
    /// # Returns
    ///
    /// the horizontal resolution of `self`
    #[doc(alias = "gtk_print_context_get_dpi_x")]
    #[doc(alias = "get_dpi_x")]
    pub fn dpi_x(&self) -> f64 {
        unsafe { ffi::gtk_print_context_get_dpi_x(self.to_glib_none().0) }
    }

    /// Obtains the vertical resolution of the [`PrintContext`][crate::PrintContext],
    /// in dots per inch.
    ///
    /// # Returns
    ///
    /// the vertical resolution of `self`
    #[doc(alias = "gtk_print_context_get_dpi_y")]
    #[doc(alias = "get_dpi_y")]
    pub fn dpi_y(&self) -> f64 {
        unsafe { ffi::gtk_print_context_get_dpi_y(self.to_glib_none().0) }
    }

    /// Obtains the hardware printer margins of the [`PrintContext`][crate::PrintContext], in units.
    ///
    /// # Returns
    ///
    /// [`true`] if the hard margins were retrieved
    ///
    /// ## `top`
    /// top hardware printer margin
    ///
    /// ## `bottom`
    /// bottom hardware printer margin
    ///
    /// ## `left`
    /// left hardware printer margin
    ///
    /// ## `right`
    /// right hardware printer margin
    #[doc(alias = "gtk_print_context_get_hard_margins")]
    #[doc(alias = "get_hard_margins")]
    pub fn hard_margins(&self) -> Option<(f64, f64, f64, f64)> {
        unsafe {
            let mut top = mem::MaybeUninit::uninit();
            let mut bottom = mem::MaybeUninit::uninit();
            let mut left = mem::MaybeUninit::uninit();
            let mut right = mem::MaybeUninit::uninit();
            let ret = from_glib(ffi::gtk_print_context_get_hard_margins(
                self.to_glib_none().0,
                top.as_mut_ptr(),
                bottom.as_mut_ptr(),
                left.as_mut_ptr(),
                right.as_mut_ptr(),
            ));
            if ret {
                Some((
                    top.assume_init(),
                    bottom.assume_init(),
                    left.assume_init(),
                    right.assume_init(),
                ))
            } else {
                None
            }
        }
    }

    /// Obtains the height of the [`PrintContext`][crate::PrintContext], in pixels.
    ///
    /// # Returns
    ///
    /// the height of `self`
    #[doc(alias = "gtk_print_context_get_height")]
    #[doc(alias = "get_height")]
    pub fn height(&self) -> f64 {
        unsafe { ffi::gtk_print_context_get_height(self.to_glib_none().0) }
    }

    /// Obtains the [`PageSetup`][crate::PageSetup] that determines the page
    /// dimensions of the [`PrintContext`][crate::PrintContext].
    ///
    /// # Returns
    ///
    /// the page setup of `self`
    #[doc(alias = "gtk_print_context_get_page_setup")]
    #[doc(alias = "get_page_setup")]
    pub fn page_setup(&self) -> Option<PageSetup> {
        unsafe { from_glib_none(ffi::gtk_print_context_get_page_setup(self.to_glib_none().0)) }
    }

    /// Returns a [`pango::FontMap`][crate::pango::FontMap] that is suitable for use
    /// with the [`PrintContext`][crate::PrintContext].
    ///
    /// # Returns
    ///
    /// the font map of `self`
    #[doc(alias = "gtk_print_context_get_pango_fontmap")]
    #[doc(alias = "get_pango_fontmap")]
    pub fn pango_fontmap(&self) -> Option<pango::FontMap> {
        unsafe {
            from_glib_none(ffi::gtk_print_context_get_pango_fontmap(
                self.to_glib_none().0,
            ))
        }
    }

    /// Obtains the width of the [`PrintContext`][crate::PrintContext], in pixels.
    ///
    /// # Returns
    ///
    /// the width of `self`
    #[doc(alias = "gtk_print_context_get_width")]
    #[doc(alias = "get_width")]
    pub fn width(&self) -> f64 {
        unsafe { ffi::gtk_print_context_get_width(self.to_glib_none().0) }
    }

    /// Sets a new cairo context on a print context.
    ///
    /// This function is intended to be used when implementing
    /// an internal print preview, it is not needed for printing,
    /// since GTK+ itself creates a suitable cairo context in that
    /// case.
    /// ## `cr`
    /// the cairo context
    /// ## `dpi_x`
    /// the horizontal resolution to use with `cr`
    /// ## `dpi_y`
    /// the vertical resolution to use with `cr`
    #[doc(alias = "gtk_print_context_set_cairo_context")]
    pub fn set_cairo_context(&self, cr: &cairo::Context, dpi_x: f64, dpi_y: f64) {
        unsafe {
            ffi::gtk_print_context_set_cairo_context(
                self.to_glib_none().0,
                mut_override(cr.to_glib_none().0),
                dpi_x,
                dpi_y,
            );
        }
    }
}

impl fmt::Display for PrintContext {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        f.write_str("PrintContext")
    }
}