109 lines
2.9 KiB
C
109 lines
2.9 KiB
C
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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/*
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* st-icon-colors.c: Colors for colorizing a symbolic icon
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*
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* Copyright 2010 Red Hat, Inc.
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* Copyright 2010 Florian Müllner
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation, either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
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* more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "st-icon-colors.h"
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/**
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* st_icon_colors_new:
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*
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* Creates a new #StIconColors. All colors are initialized to transparent black.
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*
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* Return value: a newly created #StIconColors. Free with st_icon_colors_unref()
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*/
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StIconColors *
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st_icon_colors_new (void)
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{
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StIconColors *colors;
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colors = g_slice_new0 (StIconColors);
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colors->ref_count = 1;
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return colors;
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}
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/**
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* st_icon_colors_ref:
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* @colors: a #StIconColors
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*
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* Atomically increments the reference count of @colors by one.
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*
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* Returns: the passed in #StIconColors.
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*/
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StIconColors *
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st_icon_colors_ref (StIconColors *colors)
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{
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g_return_val_if_fail (colors != NULL, NULL);
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g_return_val_if_fail (colors->ref_count > 0, colors);
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g_atomic_int_add ((volatile int *)&colors->ref_count, 1);
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return colors;
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}
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/**
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* st_icon_colors_unref:
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* @colors: a #StIconColors
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*
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* Atomically decrements the reference count of @colors by one.
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* If the reference count drops to 0, all memory allocated by the
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* #StIconColors is released.
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*/
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void
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st_icon_colors_unref (StIconColors *colors)
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{
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g_return_if_fail (colors != NULL);
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g_return_if_fail (colors->ref_count > 0);
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if (g_atomic_int_exchange_and_add ((volatile int *)&colors->ref_count, -1) - 1 == 0)
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g_slice_free (StIconColors, colors);
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}
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/**
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* st_icon_colors_copy:
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* @colors: a #StIconColors
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*
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* Creates a new StIconColors structure that is a copy of the passed
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* in @colors. You would use this function instead of st_icon_colors_ref()
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* if you were planning to change colors in the result.
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*
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* Returns: a newly created #StIconColors.
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*/
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StIconColors *
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st_icon_colors_copy (StIconColors *colors)
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{
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StIconColors *copy;
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g_return_val_if_fail (colors != NULL, NULL);
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copy = st_icon_colors_new ();
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copy->foreground = colors->foreground;
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copy->warning = colors->warning;
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copy->error = colors->error;
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copy->success = colors->success;
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return copy;
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}
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G_DEFINE_BOXED_TYPE (StIconColors,
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st_icon_colors,
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st_icon_colors_ref,
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st_icon_colors_unref)
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