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port finder pattern finder

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This commit is contained in:
Henry Schimke
2022-10-07 18:25:46 -05:00
parent 8f831b63e8
commit a205e1e08b
7 changed files with 895 additions and 771 deletions
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27
src/qrcode/detector/finder_pattern.rs
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@@ -14,7 +14,7 @@
* limitations under the License.
*/
use crate::RXingResultPoint;
use crate::{RXingResultPoint, ResultPoint};
/**
* <p>Encapsulates a finder pattern, which are the three square patterns found in
@@ -23,10 +23,21 @@ use crate::RXingResultPoint;
*
* @author Sean Owen
*/
pub struct FinderPattern {
#[derive(Debug,Clone, Copy,PartialEq)]
pub struct FinderPattern {
estimatedModuleSize: f32,
count: usize,
internal_result_point: RXingResultPoint,
point: (f32, f32),
}
impl ResultPoint for FinderPattern {
fn getX(&self) -> f32 {
self.point.0
}
fn getY(&self) -> f32 {
self.point.1
}
}
impl FinderPattern {
@@ -38,7 +49,7 @@ impl FinderPattern {
Self {
estimatedModuleSize,
count,
internal_result_point: RXingResultPoint::new(posX, posY),
point: (posX, posY),
}
}
@@ -55,9 +66,7 @@ impl FinderPattern {
* position and size -- meaning, it is at nearly the same center with nearly the same size.</p>
*/
pub fn aboutEquals(&self, moduleSize: f32, i: f32, j: f32) -> bool {
if (i - self.internal_result_point.getY()).abs() <= moduleSize
&& (j - self.internal_result_point.getX()).abs() <= moduleSize
{
if (i - self.getY()).abs() <= moduleSize && (j - self.getX()).abs() <= moduleSize {
let moduleSizeDiff = (moduleSize - self.estimatedModuleSize).abs();
return moduleSizeDiff <= 1.0 || moduleSizeDiff <= self.estimatedModuleSize;
}
@@ -71,8 +80,8 @@ impl FinderPattern {
*/
pub fn combineEstimate(&self, i: f32, j: f32, newModuleSize: f32) -> FinderPattern {
let combinedCount = self.count as f32 + 1.0;
let combinedX = (self.count as f32 * self.internal_result_point.getX() + j) / combinedCount;
let combinedY = (self.count as f32 * self.internal_result_point.getY() + i) / combinedCount;
let combinedX = (self.count as f32 * self.getX() + j) / combinedCount;
let combinedY = (self.count as f32 * self.getY() + i) / combinedCount;
let combinedModuleSize =
(self.count as f32 * self.estimatedModuleSize + newModuleSize) / combinedCount;
FinderPattern::private_new(