mirror of https://github.com/mum4k/termdash.git
65 lines
2.4 KiB
Go
65 lines
2.4 KiB
Go
// Copyright 2020 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package axes
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// label.go contains code that calculates the positions of labels on the axes.
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import (
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"errors"
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"image"
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)
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// Label is one text label on an axis.
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type Label struct {
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// Label content.
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Text string
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// Position of the label within the canvas.
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Pos image.Point
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}
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// yLabels returns labels that should be placed next to the cells.
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// The labelWidth is the width of the area from the left-most side of the
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// canvas until the Y axis (not including the Y axis). This is the area where
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// the labels will be placed and aligned.
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// Labels are returned with Y coordinates in ascending order.
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// Y coordinates grow down.
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func yLabels(graphHeight, labelWidth int, labels []string) ([]*Label, error) {
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return nil, errors.New("not implemented")
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}
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// rowLabel returns one label for the specified row.
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// The row is the Y coordinate of the row, Y coordinates grow down.
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func rowLabel(row int, label string, labelWidth int) (*Label, error) {
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return nil, errors.New("not implemented")
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}
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// xLabels returns labels that should be placed under the cells.
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// Labels are returned with X coordinates in ascending order.
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// X coordinates grow right.
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func xLabels(yEnd image.Point, graphWidth int, labels []string, cellWidth int) ([]*Label, error) {
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return nil, errors.New("not implemented")
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}
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// paddedLabelLength calculates the length of the padded X label and
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// the column index corresponding to the label.
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// For example, the longest X label's length is 5, like '12:34', and the cell's width is 3.
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// So in order to better display, every three columns of cells will display a X label,
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// the X label belongs to the middle column of the three columns,
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// and the padded length is 3*3 (cellWidth multiplies the number of columns), which is 9.
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func paddedLabelLength(graphWidth, longest, cellWidth int) (l, index int) {
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return
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}
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