begin visualization

1 files changed, 67 insertions, 0 deletions

diff --git a/View.cpp b/View.cpp
new file mode 100644
index 0000000..5671c1f
--- /dev/null
+++ b/View.cpp
@@ -0,0 +1,67 @@
+#include <SDL2/SDL.h>
+#include <thread>
+
+#include "View.h"
+
+View::View() {
+	SDL_Init(SDL_INIT_VIDEO | SDL_INIT_EVENTS);
+	this->window = SDL_CreateWindow(
+			"dpa",
+			SDL_WINDOWPOS_UNDEFINED,
+			SDL_WINDOWPOS_UNDEFINED,
+			this->width,
+			this->height,
+			SDL_WINDOW_SHOWN | SDL_WINDOW_OPENGL
+	);
+	this->renderer = SDL_CreateRenderer(this->window, -1, SDL_RENDERER_ACCELERATED);
+	this->worker = new std::thread(&View::work, this);
+}
+
+View::~View() {
+	if (this->renderer != nullptr)
+		SDL_DestroyRenderer(this->renderer);
+	if (this->window != nullptr)
+		SDL_DestroyWindow(this->window);
+	if (this->worker != nullptr) {
+		this->open = false;
+		this->worker->join();
+	}
+	SDL_Quit();
+}
+
+void View::set_size(unsigned int width, unsigned int height) {
+	if (this->width == width && this->height == height) return;
+
+	SDL_SetWindowSize(this->window, width, height);
+	this->width = width;
+	this->height = height;
+}
+
+void View::work() {
+	while (this->open) {
+		SDL_Event e;
+		while (SDL_PollEvent(&e))
+			if (e.type == SDL_QUIT) this->open = false;
+	}
+}
+
+void View::draw_begin() {
+	SDL_RenderClear(this->renderer);
+}
+
+void View::draw_end() {
+	SDL_SetRenderDrawColor(this->renderer, 0, 0, 0, 255);
+	SDL_RenderPresent(this->renderer);
+}
+
+void View::draw_rect(Rectangle r, Color c) {
+	SDL_SetRenderDrawColor(this->renderer, c.red, c.green, c.blue, 255);
+	SDL_Rect rect = {
+		.x = static_cast<int>(r.x),
+		.y = static_cast<int>(r.y),
+		.w = static_cast<int>(r.width),
+		.h = static_cast<int>(r.height),
+	};
+	SDL_RenderFillRect(this->renderer, &rect);
+}
+