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
|
// Scintilla source code edit control
// Wrappers.h - Encapsulation of GLib, GObject, Pango, Cairo, GTK, and GDK types
// Copyright 2022 by Neil Hodgson <neilh@scintilla.org>
// The License.txt file describes the conditions under which this software may be distributed.
#ifndef WRAPPERS_H
#define WRAPPERS_H
namespace Scintilla::Internal {
// GLib
struct GFreeReleaser {
template <class T>
void operator()(T *object) noexcept {
g_free(object);
}
};
using UniqueStr = std::unique_ptr<gchar, GFreeReleaser>;
// GObject
struct GObjectReleaser {
// Called by unique_ptr to destroy/free the object
template <class T>
void operator()(T *object) noexcept {
g_object_unref(object);
}
};
// Pango
using UniquePangoContext = std::unique_ptr<PangoContext, GObjectReleaser>;
using UniquePangoLayout = std::unique_ptr<PangoLayout, GObjectReleaser>;
using UniquePangoFontMap = std::unique_ptr<PangoFontMap, GObjectReleaser>;
struct FontDescriptionReleaser {
void operator()(PangoFontDescription *fontDescription) noexcept {
pango_font_description_free(fontDescription);
}
};
using UniquePangoFontDescription = std::unique_ptr<PangoFontDescription, FontDescriptionReleaser>;
struct FontMetricsReleaser {
void operator()(PangoFontMetrics *metrics) noexcept {
pango_font_metrics_unref(metrics);
}
};
using UniquePangoFontMetrics = std::unique_ptr<PangoFontMetrics, FontMetricsReleaser>;
struct LayoutIterReleaser {
// Called by unique_ptr to destroy/free the object
void operator()(PangoLayoutIter *iter) noexcept {
pango_layout_iter_free(iter);
}
};
using UniquePangoLayoutIter = std::unique_ptr<PangoLayoutIter, LayoutIterReleaser>;
// Cairo
struct CairoReleaser {
void operator()(cairo_t *context) noexcept {
cairo_destroy(context);
}
};
using UniqueCairo = std::unique_ptr<cairo_t, CairoReleaser>;
struct CairoSurfaceReleaser {
void operator()(cairo_surface_t *psurf) noexcept {
cairo_surface_destroy(psurf);
}
};
using UniqueCairoSurface = std::unique_ptr<cairo_surface_t, CairoSurfaceReleaser>;
// GTK
using UniqueIMContext = std::unique_ptr<GtkIMContext, GObjectReleaser>;
// GDK
struct GdkEventReleaser {
void operator()(GdkEvent *ev) noexcept {
gdk_event_free(ev);
}
};
using UniqueGdkEvent = std::unique_ptr<GdkEvent, GdkEventReleaser>;
inline void UnRefCursor(GdkCursor *cursor) noexcept {
#if GTK_CHECK_VERSION(3,0,0)
g_object_unref(cursor);
#else
gdk_cursor_unref(cursor);
#endif
}
[[nodiscard]] inline GdkWindow *WindowFromWidget(GtkWidget *w) noexcept {
return gtk_widget_get_window(w);
}
}
#endif
|
