unioffice/spreadsheet/linechart.go

55 lines
1.8 KiB
Go

// Copyright 2017 Baliance. All rights reserved.
//
// Use of this source code is governed by the terms of the Affero GNU General
// Public License version 3.0 as published by the Free Software Foundation and
// appearing in the file LICENSE included in the packaging of this file. A
// commercial license can be purchased by contacting sales@baliance.com.
package spreadsheet
import (
"baliance.com/gooxml/chart"
"baliance.com/gooxml/color"
crt "baliance.com/gooxml/schema/schemas.openxmlformats.org/drawingml/2006/chart"
)
type LineChart struct {
x *crt.CT_LineChart
}
// X returns the inner wrapped XML type.
func (c LineChart) X() *crt.CT_LineChart {
return c.x
}
var colors = []color.Color{color.RGB(0x33, 0x66, 0xcc), color.RGB(0xDC, 0x39, 0x12), color.RGB(0xFF, 0x99, 0x00),
color.RGB(0x10, 0x96, 0x18), color.RGB(0x99, 0x00, 0x99), color.RGB(0x3B, 0x3E, 0xAC), color.RGB(0x00, 0x99, 0xC6),
color.RGB(0xDD, 0x44, 0x77), color.RGB(0x66, 0xAA, 0x00), color.RGB(0xB8, 0x2E, 0x2E), color.RGB(0x31, 0x63, 0x95),
color.RGB(0x99, 0x44, 0x99), color.RGB(0x22, 0xAA, 0x99), color.RGB(0xAA, 0xAA, 0x11), color.RGB(0x66, 0x33, 0xCC),
color.RGB(0xE6, 0x73, 0x00), color.RGB(0x8B, 0x07, 0x07), color.RGB(0x32, 0x92, 0x62), color.RGB(0x55, 0x74, 0xA6),
color.RGB(0x3B, 0x3E, 0xAC)}
func (c LineChart) nextColor() color.Color {
idx := len(c.x.Ser)
return colors[idx%len(colors)]
}
func (c LineChart) AddSeries() LineChartSeries {
color := c.nextColor()
ser := crt.NewCT_LineSer()
c.x.Ser = append(c.x.Ser, ser)
ser.Idx.ValAttr = uint32(len(c.x.Ser) - 1)
ser.Order.ValAttr = uint32(len(c.x.Ser) - 1)
ls := LineChartSeries{ser}
ls.InitializeDefaults()
ls.Properties().LineProperties().SetSolidFill(color)
return ls
}
func (c LineChart) AddAxis(axis chart.Axis) {
axisID := crt.NewCT_UnsignedInt()
axisID.ValAttr = axis.AxisID()
c.x.AxId = append(c.x.AxId, axisID)
}