Commit 1a4607e0 authored by Paul Asmuth's avatar Paul Asmuth
Browse files

add layout_margin_box helper

parent 20b66812
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@@ -30,6 +30,7 @@ add_library(plotfxlib STATIC
    common/graphics/colour.cc
    common/graphics/image.cc
    common/graphics/layer.cc
    common/graphics/layout.cc
    common/graphics/text.cc
    common/graphics/text_layout.cc
    common/graphics/text_shaper.cc
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/**
 * This file is part of the "plotfx" project
 *   Copyright (c) 2018 Paul Asmuth
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * * Redistributions of source code must retain the above copyright notice, this
 *   list of conditions and the following disclaimer.
 * 
 * * Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 * 
 * * Neither the name of the copyright holder nor the names of its
 *   contributors may be used to endorse or promote products derived from
 *   this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
#include <algorithm>
#include "layout.h"

namespace plotfx {

Rectangle::Rectangle() :
    x(0.0f),
    y(0.0f),
    w(0.0f),
    h(0.0f) {}

Rectangle::Rectangle(
    double _x,
    double _y,
    double _w,
    double _h) :
    x(_x),
    y(_y),
    w(_w),
    h(_h) {}

Rectangle layout_margin_box(
    const Rectangle& parent,
    double margin_top,
    double margin_right,
    double margin_bottom,
    double margin_left) {
  Rectangle box;
  box.x = parent.x + margin_left;
  box.y = parent.y + margin_top;
  box.w = std::max(parent.w - (margin_left + margin_right), 0.0);
  box.h = std::max(parent.h - (margin_top + margin_bottom), 0.0);
  return box;
}


} // namespace plotfx
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/**
 * This file is part of the "plotfx" project
 *   Copyright (c) 2018 Paul Asmuth
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * * Redistributions of source code must retain the above copyright notice, this
 *   list of conditions and the following disclaimer.
 * 
 * * Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 * 
 * * Neither the name of the copyright holder nor the names of its
 *   contributors may be used to endorse or promote products derived from
 *   this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
#pragma once
#include <assert.h>
#include <stdlib.h>
#include <stdint.h>

namespace plotfx {

struct Rectangle {
  Rectangle();
  Rectangle(double x, double y, double w, double h);
  double x;
  double y;
  double w;
  double h;
};

Rectangle layout_margin_box(
    const Rectangle& parent,
    double margin_top,
    double margin_right,
    double margin_bottom,
    double margin_left);

} // namespace plotfx