grid

examples/HelloGrid/README.md

@@ -0,0 +1,19 @@
+# HelloGrid Example
+
+This example demonstrates the usage of the GridElement class which arranges its children in configurable grid patterns.
+
+## Features Shown
+
+- Creating a GridElement with specified columns and rows
+- Setting spacing between grid cells
+- Adding multiple child elements to the grid
+- Automatic positioning of children in a grid layout
+- Different colored elements to visualize the grid structure
+
+## How It Works
+
+The GridElement automatically distributes its children across a grid defined by:
+- Number of columns and rows
+- Horizontal and vertical spacing between elements
+
+Each child element is positioned in row-major order, filling the grid from left to right and top to bottom.

examples/HelloGrid/main.cpp

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+import Crafter.Event;
+import Crafter.Graphics;
+import std;
+using namespace Crafter;
+
+int main() {
+    WindowWayland window(1280, 720, "Hello Grid!");
+
+    // Create a GridElement with 3 columns and 2 rows
+    GridElement grid(
+        3, // columns
+        2, // rows
+        FractionalToMapped(0.1), // spacingX
+        FractionalToMapped(0.1), // spacingY
+        FractionalToMapped(0), // anchorX
+        FractionalToMapped(0), // anchorY
+        FractionalToMapped(1), // relativeWidth
+        FractionalToMapped(1), // relativeHeight
+        FractionalToMapped(0), // anchorOffsetX
+        FractionalToMapped(0), // anchorOffsetY
+        0,  // z
+        false // ignoreScaling
+    );
+
+    for (int i = 0; i < 6; i++) {
+        RenderingElementScaling* rendering = new RenderingElementScaling(
+            OpaqueType::FullyOpaque,
+            1,
+            1,
+            FractionalToMapped(0.5), // anchorX
+            FractionalToMapped(0.5), // anchorY
+            FractionalToMapped(1.0), // relativeSizeX (will be overridden by grid)
+            FractionalToMapped(1.0), // relativeSizeY (will be overridden by grid)
+            FractionalToMapped(0.0), // anchorOffsetX
+            FractionalToMapped(0.0), // anchorOffsetY
+            0,  // z
+            false // ignoreScaling
+        );
+        
+        // // Set different colors for each element
+        switch (i % 6) {
+            case 0: rendering->buffer = {{255, 0, 0, 255}}; break;  // Red
+            case 1: rendering->buffer = {{0, 255, 0, 255}}; break;  // Green
+            case 2: rendering->buffer = {{0, 0, 255, 255}}; break;  // Blue
+            case 3: rendering->buffer = {{255, 255, 0, 255}}; break; // Yellow
+            case 4: rendering->buffer = {{255, 0, 255, 255}}; break; // Magenta
+            case 5: rendering->buffer = {{0, 255, 255, 255}}; break; // Cyan
+        }
+        
+        grid.children.push_back(rendering);
+    }
+
+    // Add the grid to the window
+    window.elements.push_back(&grid);
+
+    // Update positions to arrange children in grid
+    grid.UpdatePosition(window);
+
+    window.Render();
+    window.StartSync();
+}

examples/HelloGrid/project.json

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+{
+    "name": "crafter-graphics",
+    "configurations": [
+        {
+            "name": "executable",
+            "implementations": ["main"],
+            "dependencies": [
+                {
+                    "path":"../../project.json",
+                    "configuration":"lib-wayland"
+                }
+            ]
+        }
+    ]
+}

implementations/Crafter.Graphics-GridElement.cpp

@@ -48,7 +48,7 @@ void GridElement::SetSpacing(std::int_fast32_t spacingX, std::int_fast32_t spaci
 }
 
 void GridElement::UpdatePosition(Window& window) {
-    Transform::UpdatePosition(window);
+    window.ScaleElement(*this);
     
     // Calculate grid dimensions
     std::int_fast32_t totalWidth = 0;
@@ -84,8 +84,7 @@ void GridElement::UpdatePosition(Window& window) {
 }
 
 void GridElement::UpdatePosition(Window& window, Transform& parent) {
-    Transform::UpdatePosition(window, parent);
-    
+    window.ScaleElement(*this, parent);
     // Calculate grid dimensions
     std::int_fast32_t totalWidth = 0;
     std::int_fast32_t totalHeight = 0;