Plotter element

src/graphics/ui/elements/Plotter.cpp

@@ -0,0 +1,52 @@
+#include "Plotter.hpp"
+
+#include "../../core/Batch2D.h"
+#include "../../core/Font.h"
+#include "../../core/GfxContext.h"
+#include "../../../assets/Assets.h"
+#include "../../../util/stringutil.h"
+
+using namespace gui;
+
+void Plotter::act(float delta) {
+    index = index + 1 % dmwidth;
+    int value = static_cast<int>(delta * multiplier);
+    points[index % dmwidth] = std::min(value, dmheight);
+}
+
+void Plotter::draw(const GfxContext* pctx, Assets* assets) {
+    glm::vec2 pos = calcPos();
+    auto batch = pctx->getBatch2D();
+    batch->texture(nullptr);
+    batch->lineWidth(1);
+    for (int i = index+1; i < index+dmwidth; i++) {
+        int j = i % dmwidth;
+        batch->line(
+            pos.x + i - index, pos.y + size.y - points[j], 
+            pos.x + i - index, pos.y + size.y, 1.0f, 1.0f, 1.0f, 0.2f
+        );
+    }
+    batch->setColor({1,1,1,0.2f});
+    batch->lineRect(pos.x, pos.y, dmwidth, dmheight);
+    for (int y = 0; y < dmheight; y += 16) {
+        batch->line(
+            pos.x+dmwidth-4, pos.y+dmheight-y,
+            pos.x+dmwidth+4, pos.y+dmheight-y,
+            1.0f, 1.0f, 1.0f, 0.2f
+        );
+    }
+
+    int current_point = static_cast<int>(points[index % dmwidth]);
+    auto font = assets->getFont("normal");
+    for (int y = 0; y < dmheight; y += labelsInterval) {
+        std::wstring string;
+        if (current_point/16 == y/labelsInterval) {
+            batch->setColor({1,1,1,0.5f});
+            string = util::to_wstring(current_point / multiplier, 3);
+        } else {
+            batch->setColor({1,1,1,0.2f});
+            string = util::to_wstring(y / multiplier, 3);
+        }
+        font->draw(batch, string, pos.x+dmwidth+2, pos.y+dmheight-y-labelsInterval);
+    }
+}