changed width and height in Image struct from usize to u32

src/image/mod.rs

@@ -1,6 +1,6 @@
 //!
 //! This module provides the struct and basic functions to represent images.
-//! The image struct has the width and height dimensions of the image in px as usize.
+//! The image struct has the width and height dimensions of the image in px as u32.
 //! The pixels of the image itself are stored in a vector where a tuple with four elements represent the RGBA values of a pixel.
 //!
 //! A pixel is a tuple with four elements where the elements are RGBA. For convenience the tuple is as an generic Datatype specified
@@ -42,9 +42,9 @@ where
     T: Into<f32> + PartialEq + Default + Copy + From<u8> + PartialOrd,
 {
     ///the width of the Picture in px
-    width: usize,
+    width: u32,
     ///the height of the Picture in px
-    height: usize,
+    height: u32,
     ///the raw RGBA data of the Picture where the RGBA values of an pixel is one tuple
     pixels: Vec<(T, T, T, T)>,
     ///the absolute path where the picture is located
@@ -58,8 +58,8 @@ where
 {
     ///gives an Image with specified values if the Vec matches the width times the height of the Image
     /// if the width and height dont make sense for the Image then will this function panic.
-    pub fn new(width: usize, height: usize, pixels: Vec<(T, T, T, T)>, path: PathBuf) -> Self {
+    pub fn new(width: u32, height: u32, pixels: Vec<(T, T, T, T)>, path: PathBuf) -> Self {
-        if width * height != pixels.len() {
+        if width * height != pixels.len() as u32 {
             panic!("The Image does not have the same number of pixel as width and height implies")
         } else {
             Self {
@@ -72,11 +72,11 @@ where
     }
 
     /// Returns the width of the image
-    pub fn width(&self) -> usize {
+    pub fn width(&self) -> u32 {
         self.width
     }
     /// Returns the height of the image
-    pub fn height(&self) -> usize {
+    pub fn height(&self) -> u32 {
         self.height
     }
     /// Returns a specified pixel of the image