Show available missions

include/AMI.h

@@ -8,9 +8,6 @@
 #include <memory>
 #include <vector>
 
-constexpr const char* FT_LOGO_PATH = "resources/Fasttube_Logo-white.bmp";
-constexpr const char* AVENIR_FONT_PATH = "resources/Avenir-Book.ttf";
-
 class AMI final : public View {
 public:
   AMI(SDL_Renderer* renderer);
@@ -24,4 +21,6 @@ private:
 
   ImageWidget ft_logo;
   TextWidget choose;
+  ListWidget missions_widget;
+  std::vector<std::unique_ptr<Widget>> missions;
 };

include/widgets.h

@@ -5,6 +5,7 @@
 
 #include <optional>
 #include <string>
+#include <vector>
 
 enum class Alignment { LEFT, RIGHT, CENTER };
 struct PositionInfo {
@@ -25,6 +26,10 @@ public:
   virtual void set_position(int x, int y);
   virtual void set_alignment(Alignment align);
 
+  int get_width();
+  int get_height();
+  const PositionInfo& get_position();
+
   virtual void draw() = 0;
 
 protected:
@@ -69,3 +74,22 @@ protected:
 
   SDL_Texture* generate_text(const std::string& text);
 };
+
+class ListWidget : public Widget {
+public:
+  ListWidget(SDL_Renderer* renderer, int element_height,
+             Alignment element_alignment);
+  virtual ~ListWidget();
+
+  void add_element(Widget* element);
+
+  virtual void draw() override;
+
+protected:
+  int element_height;
+  Alignment element_alignment;
+
+  std::vector<Widget*> elements;
+
+  void place_element(Widget* element, int index);
+};

src/AMI.cpp

@@ -2,18 +2,49 @@
 
 #include "defines.h"
 #include "util.h"
+#include "widgets.h"
+
+#include <array>
+
+constexpr const char* FT_LOGO_PATH = "resources/Fasttube_Logo-white.bmp";
+constexpr const char* AVENIR_FONT_PATH = "resources/Avenir-Book.ttf";
+constexpr int AVENIR_PTS = 20;
+constexpr int FT_LOGO_HEIGHT = 40;
+constexpr int GAP = 5;
+constexpr int CHOOSE_Y = FT_LOGO_HEIGHT + GAP;
+constexpr int MISSION_HEIGHT = 30;
+
+constexpr std::array MISSIONS = {"ACCELERATION",  "SKIDPAD",  "AUTOCROSS",
+                                 "TRACKDRIVE",    "EBS TEST", "INSPECTION",
+                                 "MANUAL DRIVING"};
 
 AMI::AMI(SDL_Renderer* renderer)
-    : View{renderer}, avenir{util::load_font(AVENIR_FONT_PATH, 20)},
+    : View{renderer}, avenir{util::load_font(AVENIR_FONT_PATH, AVENIR_PTS)},
       ft_logo{renderer, FT_LOGO_PATH}, choose{renderer, avenir,
-                                              "Choose a mission:"} {
-  ft_logo.set_height(40);
+                                              "Choose a mission:"},
+      missions_widget{renderer, MISSION_HEIGHT, Alignment::CENTER} {
+  ft_logo.set_height(FT_LOGO_HEIGHT);
   ft_logo.set_position(SCREEN_WIDTH / 2, 0);
   ft_logo.set_alignment(Alignment::CENTER);
   widgets.push_back(&ft_logo);
-  choose.set_position(SCREEN_WIDTH / 2, 45);
+
+  choose.set_position(SCREEN_WIDTH / 2, CHOOSE_Y);
   choose.set_alignment(Alignment::CENTER);
   widgets.push_back(&choose);
+
+  int choose_height = choose.get_height();
+  int missions_y = CHOOSE_Y + choose_height + GAP;
+  int missions_height = SCREEN_HEIGHT - CHOOSE_Y - choose_height - 1;
+  missions_widget.set_position(0, missions_y);
+  missions_widget.set_width(SCREEN_WIDTH, false);
+  missions_widget.set_height(missions_height, false);
+  for (const auto mission : MISSIONS) {
+    missions.push_back(std::make_unique<TextWidget>(renderer, avenir, mission));
+  }
+  for (const auto& mission : missions) {
+    missions_widget.add_element(mission.get());
+  }
+  widgets.push_back(&missions_widget);
 }
 
 void AMI::draw() {

src/App.cpp

@@ -2,6 +2,7 @@
 
 #include "AMI.h"
 
+#include <SDL2/SDL.h>
 #include <SDL2/SDL_image.h>
 #include <fmt/format.h>
 

src/widgets.cpp

@@ -1,7 +1,9 @@
 #include "widgets.h"
 
+#include "defines.h"
 #include "util.h"
 
+#include <SDL2/SDL.h>
 #include <SDL2/SDL_image.h>
 #include <fmt/format.h>
 
@@ -40,6 +42,12 @@ void Widget::set_alignment(Alignment align) {
   recalculate_rect();
 }
 
+int Widget::get_width() { return rect.w; }
+
+int Widget::get_height() { return rect.h; }
+
+const PositionInfo& Widget::get_position() { return pos; }
+
 void Widget::recalculate_rect() {
   int x = pos.x;
   int y = pos.y;
@@ -130,3 +138,62 @@ SDL_Texture* TextWidget::generate_text(const std::string& text) {
   }
   return texture;
 }
+
+ListWidget::ListWidget(SDL_Renderer* renderer, int element_height,
+                       Alignment element_alignment)
+    : Widget{renderer}, element_height{element_height},
+      element_alignment{element_alignment} {}
+
+ListWidget::~ListWidget() {}
+
+void ListWidget::add_element(Widget* element) {
+  int new_index = elements.size();
+  elements.push_back(element);
+  place_element(element, new_index);
+}
+
+void ListWidget::draw() {
+  int max_y = rect.y + rect.h;
+  for (size_t i = 0; i < elements.size(); i++) {
+    const auto& element = elements[i];
+    const PositionInfo& element_pos = element->get_position();
+    if (element_pos.y >= max_y) {
+      // Since the elements are sorted, we can stop the loop now.
+      break;
+    }
+    if (i % 2 == 1) {
+      SDL_SetRenderDrawColor(renderer, 0x11, 0x11, 0x11, 0xFF);
+      SDL_Rect fill_rect = {
+          .x = pos.x, .y = element_pos.y, .w = rect.w, .h = element_height};
+      SDL_RenderFillRect(renderer, &fill_rect);
+    }
+    element->draw();
+    if (i != elements.size() - 1) {
+      int border_y = element_pos.y + element->get_height();
+      SDL_SetRenderDrawColor(renderer, 0xFF, 0xFF, 0xFF, 0xFF);
+      SDL_RenderDrawLine(renderer, rect.x, border_y, rect.x + rect.w, border_y);
+    }
+  }
+}
+
+void ListWidget::place_element(Widget* element, int index) {
+  int x = rect.x;
+  switch (element_alignment) {
+  case Alignment::LEFT:
+    break;
+  case Alignment::RIGHT:
+    x += rect.w;
+    break;
+  case Alignment::CENTER:
+    x += rect.w / 2;
+    break;
+  default:
+    throw std::runtime_error(
+        fmt::format("Unknown alignment: {}", (int)pos.align));
+  }
+  // Additional pixel for border
+  int y = rect.y + index * (element_height + 1);
+  element->set_position(x, y);
+  element->set_alignment(element_alignment);
+  element->set_height(element_height);
+}