From 5b9d15cd8b809c0e627cd21c347cf2e11ef86e54 Mon Sep 17 00:00:00 2001
From: Enrico <enrico.bison@spindoxlabs.it>
Date: Fri, 26 Jul 2019 16:48:07 +0200
Subject: [PATCH] algo autowidth
---
bar_chart.go | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/bar_chart.go b/bar_chart.go
index 45ddcc7..5442084 100644
--- a/bar_chart.go
+++ b/bar_chart.go
@@ -61,6 +61,8 @@ func (bc BarChart) GetFont() *truetype.Font {
func (bc BarChart) GetWidth() int {
if bc.Width == 0 {
return DefaultChartWidth
+ } else if bc.Width == -1 {
+ return bc.autoWidth()
}
return bc.Width
}
@@ -89,6 +91,19 @@ func (bc BarChart) GetBarWidth() int {
return bc.BarWidth
}
+func (bc BarChart) autoWidth() (totalWidth int) {
+
+ totalWidth = 0
+ barWidth := bc.GetBarWidth()
+ barSpacing := bc.GetBarSpacing()
+
+ for _, _ = range bc.Bars {
+ totalWidth += barWidth + barSpacing
+ }
+
+ return
+}
+
// Render renders the chart with the given renderer to the given io.Writer.
func (bc BarChart) Render(rp RendererProvider, w io.Writer) error {
if len(bc.Bars) == 0 {