| 1 | /* gtkcustomlayout.h: Simple layout manager |
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| 2 | * Copyright 2019 GNOME Foundation |
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| 3 | * |
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| 4 | * This library is free software; you can redistribute it and/or |
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| 5 | * modify it under the terms of the GNU Lesser General Public |
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| 6 | * License as published by the Free Software Foundation; either |
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| 7 | * version 2.1 of the License, or (at your option) any later version. |
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| 8 | * |
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| 9 | * This library is distributed in the hope that it will be useful, |
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| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | * Lesser General Public License for more details. |
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| 13 | * |
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| 14 | * You should have received a copy of the GNU Lesser General Public |
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| 15 | * License along with this library. If not, see <http://www.gnu.org/licenses/>. |
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| 16 | */ |
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| 17 | #pragma once |
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| 18 | |
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| 19 | #include <gtk/gtklayoutmanager.h> |
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| 20 | |
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| 21 | G_BEGIN_DECLS |
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| 22 | |
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| 23 | #define GTK_TYPE_CUSTOM_LAYOUT (gtk_custom_layout_get_type ()) |
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| 24 | |
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| 25 | /** |
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| 26 | * GtkCustomRequestModeFunc: |
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| 27 | * @widget: the widget to be queried |
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| 28 | * |
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| 29 | * Queries a widget for its preferred size request mode. |
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| 30 | * |
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| 31 | * Returns: the size request mode |
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| 32 | */ |
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| 33 | typedef GtkSizeRequestMode (* GtkCustomRequestModeFunc) (GtkWidget *widget); |
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| 34 | |
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| 35 | /** |
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| 36 | * GtkCustomMeasureFunc: |
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| 37 | * @widget: the widget to be measured |
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| 38 | * @orientation: the direction to be measured |
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| 39 | * @for_size: the size to be measured for |
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| 40 | * @minimum: (out): the measured minimum size of the widget |
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| 41 | * @natural: (out): the measured natural size of the widget |
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| 42 | * @minimum_baseline: (out): the measured minimum baseline of the widget |
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| 43 | * @natural_baseline: (out): the measured natural baseline of the widget |
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| 44 | * |
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| 45 | * A function to be used by `GtkCustomLayout` to measure a widget. |
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| 46 | */ |
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| 47 | typedef void (* GtkCustomMeasureFunc) (GtkWidget *widget, |
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| 48 | GtkOrientation orientation, |
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| 49 | int for_size, |
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| 50 | int *minimum, |
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| 51 | int *natural, |
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| 52 | int *minimum_baseline, |
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| 53 | int *natural_baseline); |
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| 54 | |
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| 55 | /** |
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| 56 | * GtkCustomAllocateFunc: |
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| 57 | * @widget: the widget to allocate |
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| 58 | * @width: the new width of the widget |
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| 59 | * @height: the new height of the widget |
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| 60 | * @baseline: the new baseline of the widget, or -1 |
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| 61 | * |
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| 62 | * A function to be used by `GtkCustomLayout` to allocate a widget. |
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| 63 | */ |
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| 64 | typedef void (* GtkCustomAllocateFunc) (GtkWidget *widget, |
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| 65 | int width, |
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| 66 | int height, |
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| 67 | int baseline); |
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| 68 | |
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| 69 | GDK_AVAILABLE_IN_ALL |
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| 70 | G_DECLARE_FINAL_TYPE (GtkCustomLayout, gtk_custom_layout, GTK, CUSTOM_LAYOUT, GtkLayoutManager) |
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| 71 | |
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| 72 | GDK_AVAILABLE_IN_ALL |
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| 73 | GtkLayoutManager * gtk_custom_layout_new (GtkCustomRequestModeFunc request_mode, |
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| 74 | GtkCustomMeasureFunc measure, |
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| 75 | GtkCustomAllocateFunc allocate); |
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| 76 | |
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| 77 | G_END_DECLS |
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| 78 | |
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