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);
+    }
+}

src/graphics/ui/elements/Plotter.hpp

@@ -0,0 +1,37 @@
+#ifndef GRAPHICS_UI_ELEMENTS_PLOTTER_HPP_
+#define GRAPHICS_UI_ELEMENTS_PLOTTER_HPP_
+
+#include "UINode.h"
+#include "../../../typedefs.h"
+
+#include <memory>
+#include <glm/glm.hpp>
+
+class Assets;
+class GfxContext;
+
+namespace gui {
+    class Plotter : public gui::UINode {
+        std::unique_ptr<int[]> points;
+        float multiplier;
+        int index = 0;
+        int dmwidth;
+        int dmheight;
+        int labelsInterval;
+    public:
+        Plotter(uint width, uint height, float multiplier, int labelsInterval) 
+        : gui::UINode(glm::vec2(width, height)), 
+            multiplier(multiplier),
+            dmwidth(width-50),
+            dmheight(height),
+            labelsInterval(labelsInterval)
+        {
+            points = std::make_unique<int[]>(dmwidth);
+        }
+
+        void act(float delta) override;
+        void draw(const GfxContext* pctx, Assets* assets) override;
+    };
+}
+
+#endif // GRAPHICS_UI_ELEMENTS_PLOTTER_HPP_

src/graphics/ui/elements/controls.h

@@ -1,6 +1,8 @@
 #ifndef GRAPHICS_UI_ELEMENTS_CONTROLS_H_
 #define GRAPHICS_UI_ELEMENTS_CONTROLS_H_
 
+// TODO: move elements to different files
+
 #include <string>
 #include <memory>
 #include <vector>