From 43db9e18cc146aa4abafdef18b529b2e788adb55 Mon Sep 17 00:00:00 2001
From: lordwelch <timmy@narnian.us>
Date: Thu, 24 Mar 2016 09:16:15 -0700
Subject: [PATCH] documentaion

---
 magickwand.go | 13 ++++++++++++-
 main.go       |  2 ++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/magickwand.go b/magickwand.go
index 78da62c..984eb8b 100644
--- a/magickwand.go
+++ b/magickwand.go
@@ -7,6 +7,11 @@ import (
 	"gopkg.in/gographics/imagick.v2/imagick"
 )
 
+/*resizeImage() mw fullsize image
+newwidth, newheight = size to be resized to
+keepSpecSize = return image with exactly the size specified or just the size of the resized image
+center = senter the image
+*/
 func resizeImage(mw *imagick.MagickWand, newWidth, newHeight int, keepSpecSize, center bool) (resmw *imagick.MagickWand) {
 	var (
 		width, height, origHeight, origWidth int
@@ -14,11 +19,14 @@ func resizeImage(mw *imagick.MagickWand, newWidth, newHeight int, keepSpecSize,
 	origHeight = int(mw.GetImageHeight())
 	origWidth = int(mw.GetImageWidth())
 
+    //check if requested size is the same as current size
 	if (origHeight != newHeight) || (origWidth != newWidth) {
+        // width / height * newheight = newwidth
 		if (round((float64(origWidth) / float64(origHeight)) * float64(newHeight))) <= newWidth {
 			width = round((float64(origWidth) / float64(origHeight)) * float64(newHeight))
 			height = newHeight
 		} else {
+        // height / width * newwidth = newheight
 			height = round((float64(origHeight) / float64(origWidth)) * float64(newWidth))
 			width = newWidth
 		}
@@ -27,18 +35,21 @@ func resizeImage(mw *imagick.MagickWand, newWidth, newHeight int, keepSpecSize,
 		width = newWidth
 	}
 
+    //new magickwand for resized image
 	resmw = imagick.NewMagickWand()
+
 	if !keepSpecSize {
 		resmw.NewImage(uint(width), uint(height), imagick.NewPixelWand())
 		center = false
 	} else {
+        //blank image
 		resmw.NewImage(uint(newWidth), uint(newHeight), imagick.NewPixelWand())
-		//fmt.Println(resmw.GetImageHeight(), resmw.GetImageWidth())
 		if center {
 			err = mw.ResizeImage(uint(width), uint(height), imagick.FILTER_LANCZOS, 1)
 			if err != nil {
 				panic(err)
 			}
+            //centers image
 			resmw.CompositeImage(mw, imagick.COMPOSITE_OP_SRC_OVER, round(float64(newWidth-width)/float64(2)), round(float64(newHeight-height)/float64(2)))
 		} else {
 			resmw.CompositeImage(mw, imagick.COMPOSITE_OP_SRC_OVER, 0, 0)
diff --git a/main.go b/main.go
index 5150fe2..529c0e2 100644
--- a/main.go
+++ b/main.go
@@ -86,8 +86,10 @@ func run() error {
 
 	textEdit = window.ObjectByName("textEdit")
 	slides.addCell()
+
 	//signals for whole qml
 	setSignals()
+
 	//image is ready for imageprovider
 	imgready = true