add rendering routines for devices

gui/CMakeLists.txt

@@ -3,10 +3,12 @@ add_subdirectory(3rdparty/imgui)
 
 add_executable(netsim 
     "src/main.cpp"
+    "src/NetworkRenderer.cpp"
+    "src/DeviceRenderer.cpp"
 )
 
 target_sources(netsim PRIVATE ${IMGUI_SOURCES})
-target_include_directories(netsim PRIVATE ${IMGUI_INCLUDE_DIR})
+target_include_directories(netsim PRIVATE ${IMGUI_INCLUDE_DIR} include)
 
 target_link_libraries(netsim PRIVATE 
     libnetsim

gui/include/DeviceRenderer.hpp

@@ -0,0 +1,20 @@
+#pragma once
+
+#include <memory>
+#include <SDL.h>
+#include "Device.hpp"
+
+struct SDL_Renderer;
+
+class DeviceRenderer {
+public:
+    DeviceRenderer(std::shared_ptr<Device> device, uint16_t x, uint16_t y);
+
+    void Render(SDL_Renderer* renderer) const;
+    void Deselect();
+
+private:
+    SDL_FRect bbox;
+    bool selected;
+    std::shared_ptr<Device> device;
+};

gui/include/NetworkRenderer.hpp

@@ -0,0 +1,17 @@
+#pragma once
+
+#include <vector>
+#include "Network.hpp"
+#include "DeviceRenderer.hpp"
+
+class NetworkRenderer {
+public:
+    NetworkRenderer(Network& network);
+
+    void AddDevice(std::shared_ptr<Device> device, uint16_t x, uint16_t y);
+    void Render(SDL_Renderer* renderer) const;
+
+private:
+    Network& network;
+    std::vector<DeviceRenderer> devices;
+};

gui/src/DeviceRenderer.cpp

@@ -0,0 +1,26 @@
+#include "DeviceRenderer.hpp"
+
+#include <SDL.h>
+
+DeviceRenderer::DeviceRenderer(std::shared_ptr<Device> device, uint16_t x, uint16_t y) :
+    device(device), selected(false)
+{
+    bbox.x = x;
+    bbox.y = y;
+    bbox.w = 50;
+    bbox.h = 50;
+}
+
+void DeviceRenderer::Deselect() {
+    selected = false;
+}
+
+void DeviceRenderer::Render(SDL_Renderer* renderer) const {
+    SDL_SetRenderDrawColor(renderer, 150, 150, 150, 255);
+    SDL_RenderFillRect(renderer, &bbox);
+
+    if (selected) {
+        SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
+        SDL_RenderRect(renderer, &bbox);
+    }
+}

gui/src/NetworkRenderer.cpp

@@ -0,0 +1,19 @@
+#include "NetworkRenderer.hpp"
+
+#include "DeviceRenderer.hpp"
+
+NetworkRenderer::NetworkRenderer(Network& network) :
+    network(network)
+{
+
+}
+
+void NetworkRenderer::AddDevice(std::shared_ptr<Device> device, uint16_t x, uint16_t y) {
+    devices.push_back(DeviceRenderer(device, x, y));
+}
+
+void NetworkRenderer::Render(SDL_Renderer* renderer) const {
+    for (const DeviceRenderer& device : devices) {
+        device.Render(renderer);
+    }
+}

gui/src/main.cpp

@@ -6,6 +6,7 @@
 #include "imgui_impl_sdlrenderer3.h"
 
 #include "Netsim.hpp"
+#include "NetworkRenderer.hpp"
 
 int main(int argc, char** argv) {
     SDL_Init(SDL_INIT_VIDEO);
@@ -27,6 +28,7 @@ int main(int argc, char** argv) {
     ImGui::StyleColorsDark();
 
     Network network("Testnet");
+    NetworkRenderer networkRenderer(network);
 
     bool shouldClose = false;
     SDL_Event event;
@@ -46,6 +48,8 @@ int main(int argc, char** argv) {
         SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
         SDL_RenderClear(renderer);
 
+        networkRenderer.Render(renderer);
+
         ImGui_ImplSDL3_NewFrame();
         ImGui_ImplSDLRenderer3_NewFrame();
         ImGui::NewFrame();
@@ -54,7 +58,10 @@ int main(int argc, char** argv) {
 
             if (ImGui::BeginMenu("New...")) {
                 if (ImGui::MenuItem("Host")) {
-                    network.addDevice(Device::create("12:34:56:78:9A:BC"));
+                    auto device = Device::create("12:34:56:78:9A:BC");
+
+                    network.addDevice(device);
+                    networkRenderer.AddDevice(device, 400, 400);
                 };
 
                 ImGui::EndMenu();