| 1 | /* A Gtk Widget that inherits GtkFixed, but can be shrunk. |
| 2 | This file is only use when compiling with Gtk+ 3. |
| 3 | |
| 4 | Copyright (C) 2011-2014 Free Software Foundation, Inc. |
| 5 | |
| 6 | This file is part of GNU Emacs. |
| 7 | |
| 8 | GNU Emacs is free software: you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation, either version 3 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | GNU Emacs is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 20 | |
| 21 | #include <config.h> |
| 22 | |
| 23 | #include "lisp.h" |
| 24 | #include "frame.h" |
| 25 | #include "xterm.h" |
| 26 | #include "emacsgtkfixed.h" |
| 27 | |
| 28 | /* Silence a bogus diagnostic; see GNOME bug 683906. */ |
| 29 | #if 4 < __GNUC__ + (7 <= __GNUC_MINOR__) |
| 30 | # pragma GCC diagnostic push |
| 31 | # pragma GCC diagnostic ignored "-Wunused-local-typedefs" |
| 32 | #endif |
| 33 | |
| 34 | #define EMACS_TYPE_FIXED emacs_fixed_get_type () |
| 35 | #define EMACS_FIXED(obj) \ |
| 36 | G_TYPE_CHECK_INSTANCE_CAST (obj, EMACS_TYPE_FIXED, EmacsFixed) |
| 37 | |
| 38 | typedef struct _EmacsFixed EmacsFixed; |
| 39 | typedef struct _EmacsFixedPrivate EmacsFixedPrivate; |
| 40 | typedef struct _EmacsFixedClass EmacsFixedClass; |
| 41 | |
| 42 | struct _EmacsFixed |
| 43 | { |
| 44 | GtkFixed container; |
| 45 | |
| 46 | /*< private >*/ |
| 47 | EmacsFixedPrivate *priv; |
| 48 | }; |
| 49 | |
| 50 | struct _EmacsFixedClass |
| 51 | { |
| 52 | GtkFixedClass parent_class; |
| 53 | }; |
| 54 | |
| 55 | struct _EmacsFixedPrivate |
| 56 | { |
| 57 | struct frame *f; |
| 58 | }; |
| 59 | |
| 60 | |
| 61 | static void emacs_fixed_get_preferred_width (GtkWidget *widget, |
| 62 | gint *minimum, |
| 63 | gint *natural); |
| 64 | static void emacs_fixed_get_preferred_height (GtkWidget *widget, |
| 65 | gint *minimum, |
| 66 | gint *natural); |
| 67 | static GType emacs_fixed_get_type (void); |
| 68 | G_DEFINE_TYPE (EmacsFixed, emacs_fixed, GTK_TYPE_FIXED) |
| 69 | |
| 70 | static void |
| 71 | emacs_fixed_class_init (EmacsFixedClass *klass) |
| 72 | { |
| 73 | GtkWidgetClass *widget_class; |
| 74 | |
| 75 | widget_class = (GtkWidgetClass*) klass; |
| 76 | |
| 77 | widget_class->get_preferred_width = emacs_fixed_get_preferred_width; |
| 78 | widget_class->get_preferred_height = emacs_fixed_get_preferred_height; |
| 79 | g_type_class_add_private (klass, sizeof (EmacsFixedPrivate)); |
| 80 | } |
| 81 | |
| 82 | static void |
| 83 | emacs_fixed_init (EmacsFixed *fixed) |
| 84 | { |
| 85 | fixed->priv = G_TYPE_INSTANCE_GET_PRIVATE (fixed, EMACS_TYPE_FIXED, |
| 86 | EmacsFixedPrivate); |
| 87 | fixed->priv->f = 0; |
| 88 | } |
| 89 | |
| 90 | /** |
| 91 | * emacs_fixed_new: |
| 92 | * |
| 93 | * Creates a new #EmacsFixed. |
| 94 | * |
| 95 | * Returns: a new #EmacsFixed. |
| 96 | */ |
| 97 | GtkWidget* |
| 98 | emacs_fixed_new (struct frame *f) |
| 99 | { |
| 100 | EmacsFixed *fixed = g_object_new (EMACS_TYPE_FIXED, NULL); |
| 101 | EmacsFixedPrivate *priv = fixed->priv; |
| 102 | priv->f = f; |
| 103 | return GTK_WIDGET (fixed); |
| 104 | } |
| 105 | |
| 106 | static void |
| 107 | emacs_fixed_get_preferred_width (GtkWidget *widget, |
| 108 | gint *minimum, |
| 109 | gint *natural) |
| 110 | { |
| 111 | EmacsFixed *fixed = EMACS_FIXED (widget); |
| 112 | EmacsFixedPrivate *priv = fixed->priv; |
| 113 | int w = priv->f->output_data.x->size_hints.min_width; |
| 114 | if (minimum) *minimum = w; |
| 115 | if (natural) *natural = w; |
| 116 | } |
| 117 | |
| 118 | static void |
| 119 | emacs_fixed_get_preferred_height (GtkWidget *widget, |
| 120 | gint *minimum, |
| 121 | gint *natural) |
| 122 | { |
| 123 | EmacsFixed *fixed = EMACS_FIXED (widget); |
| 124 | EmacsFixedPrivate *priv = fixed->priv; |
| 125 | int h = priv->f->output_data.x->size_hints.min_height; |
| 126 | if (minimum) *minimum = h; |
| 127 | if (natural) *natural = h; |
| 128 | } |
| 129 | |
| 130 | |
| 131 | /* Override the X function so we can intercept Gtk+ 3 calls. |
| 132 | Use our values for min_width/height so that KDE don't freak out |
| 133 | (Bug#8919), and so users can resize our frames as they wish. */ |
| 134 | |
| 135 | void |
| 136 | XSetWMSizeHints (Display* d, |
| 137 | Window w, |
| 138 | XSizeHints* hints, |
| 139 | Atom prop) |
| 140 | { |
| 141 | struct x_display_info *dpyinfo = x_display_info_for_display (d); |
| 142 | struct frame *f = x_top_window_to_frame (dpyinfo, w); |
| 143 | long data[18]; |
| 144 | data[0] = hints->flags; |
| 145 | data[1] = hints->x; |
| 146 | data[2] = hints->y; |
| 147 | data[3] = hints->width; |
| 148 | data[4] = hints->height; |
| 149 | data[5] = hints->min_width; |
| 150 | data[6] = hints->min_height; |
| 151 | data[7] = hints->max_width; |
| 152 | data[8] = hints->max_height; |
| 153 | data[9] = hints->width_inc; |
| 154 | data[10] = hints->height_inc; |
| 155 | data[11] = hints->min_aspect.x; |
| 156 | data[12] = hints->min_aspect.y; |
| 157 | data[13] = hints->max_aspect.x; |
| 158 | data[14] = hints->max_aspect.y; |
| 159 | data[15] = hints->base_width; |
| 160 | data[16] = hints->base_height; |
| 161 | data[17] = hints->win_gravity; |
| 162 | |
| 163 | if ((hints->flags & PMinSize) && f) |
| 164 | { |
| 165 | int w = f->output_data.x->size_hints.min_width; |
| 166 | int h = f->output_data.x->size_hints.min_height; |
| 167 | data[5] = w; |
| 168 | data[6] = h; |
| 169 | } |
| 170 | |
| 171 | XChangeProperty (d, w, prop, XA_WM_SIZE_HINTS, 32, PropModeReplace, |
| 172 | (unsigned char *) data, 18); |
| 173 | } |
| 174 | |
| 175 | /* Override this X11 function. |
| 176 | This function is in the same X11 file as the one above. So we must |
| 177 | provide it also. */ |
| 178 | |
| 179 | void |
| 180 | XSetWMNormalHints (Display *d, Window w, XSizeHints *hints) |
| 181 | { |
| 182 | XSetWMSizeHints (d, w, hints, XA_WM_NORMAL_HINTS); |
| 183 | } |