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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:57:27 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:57:27 +0000 |
commit | 6f0f7d1b40a8fa8d46a2d6f4317600001cdbbb18 (patch) | |
tree | d423850ae901365e582137bdf2b5cbdffd7ca266 /src/gs-layout-manager.c | |
parent | Initial commit. (diff) | |
download | gnome-software-upstream.tar.xz gnome-software-upstream.zip |
Adding upstream version 43.5.upstream/43.5upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/gs-layout-manager.c')
-rw-r--r-- | src/gs-layout-manager.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/src/gs-layout-manager.c b/src/gs-layout-manager.c new file mode 100644 index 0000000..37fcf49 --- /dev/null +++ b/src/gs-layout-manager.c @@ -0,0 +1,110 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- + * vi:set noexpandtab tabstop=8 shiftwidth=8: + * + * Copyright (C) 2021 Endless OS Foundation LLC + * + * Author: Georges Basile Stavracas Neto <georges.stavracas@gmail.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include "config.h" + +#include "gs-layout-manager.h" + +/* + * The GsLayoutManager is a copy of the GtkBoxLayout, only + * declared as a derivable class, to avoid code duplication. + */ + +G_DEFINE_TYPE (GsLayoutManager, gs_layout_manager, GTK_TYPE_LAYOUT_MANAGER) + +static void +gs_layout_manager_measure (GtkLayoutManager *layout_manager, + GtkWidget *widget, + GtkOrientation orientation, + gint for_size, + gint *minimum, + gint *natural, + gint *minimum_baseline, + gint *natural_baseline) +{ + GtkWidget *child; + gint min = 0; + gint nat = 0; + + for (child = gtk_widget_get_first_child (widget); + child != NULL; + child = gtk_widget_get_next_sibling (child)) { + gint child_min_baseline = -1; + gint child_nat_baseline = -1; + gint child_min = 0; + gint child_nat = 0; + + if (!gtk_widget_should_layout (child)) + continue; + + gtk_widget_measure (child, orientation, + for_size, + &child_min, &child_nat, + &child_min_baseline, + &child_nat_baseline); + + min = MAX (min, child_min); + nat = MAX (nat, child_nat); + + if (child_min_baseline > -1) + *minimum_baseline = MAX (*minimum_baseline, child_min_baseline); + if (child_nat_baseline > -1) + *natural_baseline = MAX (*natural_baseline, child_nat_baseline); + } + + *minimum = min; + *natural = nat; +} + +static void +gs_layout_manager_allocate (GtkLayoutManager *layout_manager, + GtkWidget *widget, + gint width, + gint height, + gint baseline) +{ + GtkWidget *child; + + for (child = gtk_widget_get_first_child (widget); + child != NULL; + child = gtk_widget_get_next_sibling (child)) { + if (child && gtk_widget_should_layout (child)) + gtk_widget_allocate (child, width, height, baseline, NULL); + } +} + +static void +gs_layout_manager_class_init (GsLayoutManagerClass *klass) +{ + GtkLayoutManagerClass *layout_manager_class = GTK_LAYOUT_MANAGER_CLASS (klass); + + layout_manager_class->measure = gs_layout_manager_measure; + layout_manager_class->allocate = gs_layout_manager_allocate; +} + +static void +gs_layout_manager_init (GsLayoutManager *self) +{ +} + +/** + * gs_layout_manager_new: + * + * Create a new #GsLayoutManager. + * + * Returns: (transfer full): a new #GsLayoutManager + * + * Since: 43 + **/ +GtkLayoutManager * +gs_layout_manager_new (void) +{ + return g_object_new (GS_TYPE_LAYOUT_MANAGER, NULL); +} |