release 1.10.3 fix: initialize scale padding before painting (#54)

deduce scale unit space before painting the chart.

before panning would call setupYScale and would change the padding, which caused the chart to reduce in size

Author: jbbjarnason

CHANGELOG.md

@@ -1,8 +1,32 @@
+## 1.10.3 - 2025-10-23
+
+#### 🐛 Scale Padding Fix
+
+**Authored by [@jbbjarnason](https://github.com/jbbjarnason)** - Thank you for this fix!
+
+**Fixed Chart Shrinking During Pan Operations:**
+- Scale padding now initialized before painting charts
+- Prevents `setupYScale` from changing padding during panning
+- Chart maintains consistent size during all pan operations
+- Smooth user experience without unintended resize behavior
+
+**Technical Details:**
+- Added `_setupScales()` method to initialize X and Y scales before chart painting
+- Fixes bug where panning would call `setupYScale` and reduce chart dimensions
+- Applied to both animated chart render paths
+
+#### 🧪 Quality Assurance
+
+- All existing tests continue to pass
+- Zero breaking changes - fully backward compatible
+
+---
+
 ## 1.10.2 - 2025-10-21
 
 #### 🎨 Heat Map Unification & Bounds Fixes
 
-**Authored by [@davidlrichmond](https://github.com/davidlrichmond)**
+**Authored by [@davidlrichmond](https://github.com/davidlrichmond)** - Thank you for this contribution!
 
 **Heat Map Color System Unification:**
 - Unified heat maps to use `GradientColorScale` for consistent color handling

README.md

@@ -1101,7 +1101,7 @@ chart
 
 ## 🧪 Development Status
 
-**Current Version: 1.10.2** - Production ready with axis titles, bubble size guides, interactive floating legends, and intelligent axis bounds
+**Current Version: 1.10.3** - Production ready with axis titles, bubble size guides, interactive floating legends, and intelligent axis bounds
 
 We're shipping progressively! Each release adds new visualization types while maintaining backward compatibility.
 

doc/installation.mdx

@@ -26,7 +26,7 @@ If you prefer to add the dependency manually, update your `pubspec.yaml`:
 dependencies:
   flutter:
     sdk: flutter
-  cristalyse: ^1.10.2  # Latest version
+  cristalyse: ^1.10.3  # Latest version
 ```
 
 Then run:
@@ -105,6 +105,7 @@ Cristalyse has minimal dependencies to keep your app lightweight:
 
 | Version | Release Date | Key Features |
 |---------|-------------|--------------|
+| 1.10.3 | October 2025 | Scale padding fix for consistent chart sizing during pan operations |
 | 1.10.2 | October 2025 | Heat map color unification and bounds edge case validation |
 | 1.10.1 | October 2025 | Wilkinson labeling precision fix for large numbers |
 | 1.10.0 | October 2025 | Axis titles and bubble size guide with edge case validation |

doc/updates.mdx

@@ -12,10 +12,26 @@ seo:
 
 Stay informed about the latest features, improvements, and fixes in Cristalyse.
 
+<Update label="October 23, 2025" description="v1.10.3">
+  ### 🐛 Scale Padding Fix
+  
+  **Authored by [@jbbjarnason](https://github.com/jbbjarnason)** - Thank you for this fix!
+  
+  **Fixed chart shrinking when panning**
+  - Scale padding now initialized before painting charts
+  - Prevents setupYScale from changing padding during panning
+  - Chart maintains consistent size during all pan operations
+  - Smooth user experience without unintended resize behavior
+  
+  **Quality Assurance:**
+  - All existing tests continue to pass
+  - Zero breaking changes - fully backward compatible
+</Update>
+
 <Update label="October 21, 2025" description="v1.10.2">
   ### 🎨 Heat Map Unification & Bounds Validation
 
-  **Authored by [@davidlrichmond](https://github.com/davidlrichmond)**
+  **Authored by [@davidlrichmond](https://github.com/davidlrichmond)** - Thank you for this contribution!
 
   **Heat Map Color System Unification:**
   - Unified heat maps to use `GradientColorScale` for consistent color handling

lib/src/widgets/animated_chart_widget.dart

@@ -466,6 +466,8 @@ class _AnimatedCristalyseChartWidgetState
       size.height - widget.theme.padding.vertical,
     );
 
+    _setupScales(plotArea.width, plotArea.height);
+
     final chartPainter = chartPainterAnimated(
         widget: widget,
         context: context,
@@ -744,6 +746,8 @@ class _AnimatedCristalyseChartWidgetState
       size.height - tempWidget.theme.padding.vertical,
     );
 
+    _setupScales(plotArea.width, plotArea.height);
+
     final chartPainter = chartPainterAnimated(
         widget: tempWidget,
         context: context,
@@ -973,6 +977,14 @@ class _AnimatedCristalyseChartWidgetState
     }
   }
 
+  void _setupScales(double width, double height) {
+    _setupXScale(width, widget.geometries.any((g) => g is BarGeometry));
+    _setupYScale(
+        height, widget.geometries.any((g) => g is BarGeometry), YAxis.primary);
+    _setupYScale(height, widget.geometries.any((g) => g is BarGeometry),
+        YAxis.secondary);
+  }
+
   Scale _setupXScale(double width, bool hasBarGeometry) {
     if (widget.coordFlipped) {
       final preconfigured = widget.yScale;

pubspec.yaml

@@ -1,6 +1,6 @@
 name: cristalyse
 description: "Cristalyse is a high-performance data visualization library for Dart/Flutter that implements grammar of graphics principles with native rendering capabilities."
-version: 1.10.2
+version: 1.10.3
 homepage: https://cristalyse.com
 documentation: https://docs.cristalyse.com
 repository: https://github.com/rudi-q/cristalyse