Add boilerplate for wifi panel

src/config.cpp

@@ -10,6 +10,7 @@
 // A list of all panels to be displayed, in order
 dashboard::panel::panel* PANELS[] = {
     new dashboard::panel::weather(),
+    new dashboard::panel::wifi(),
 };
 size_t PANELS_LENGTH = sizeof(PANELS)/sizeof(PANELS[0]);
 
@@ -22,6 +23,7 @@ dashboard::panel::panel* OVERLAY = new dashboard::panel::def_overlay();
 const char* IMAGE_LOCATIONS[] = {
     "bmp_24.png",
     "sky.png",
+    "wifi_background.jpg",
 };
 size_t IMAGE_LOCATIONS_LENGTH = sizeof(IMAGE_LOCATIONS)/sizeof(IMAGE_LOCATIONS[0]);
 

src/config.def.hpp

@@ -77,6 +77,7 @@ constexpr int IMG_FLAGS = 0
 #include "panel/panel.hpp"
 #include "panel/weather.hpp"
 #include "panel/def_overlay.hpp"
+#include "panel/wifi.hpp"
 extern dashboard::panel::panel* PANELS[];
 extern size_t PANELS_LENGTH;
 

src/panel/wifi.cpp

@@ -0,0 +1,93 @@
+///////////////////////////////////////////////////////////////////////////////
+// Tyler Perkins
+// 21-12-21
+// wifi panel
+//
+
+#include "wifi.hpp"
+#include "wifi_config.hpp"
+
+using namespace dashboard::panel;
+
+///////////////////////////////////////////////////////////////////////////////
+// Constructors ///////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+
+wifi::wifi(){
+    std::cerr << "WIFI CONSTRUCTOR\n";
+    _texture = nullptr;
+    _time_on_screen = WIFI_DEFAULT_TIME_ON_SCREEN;
+}
+
+wifi::~wifi(){
+    std::cerr << "WIFI DECONSTRUCTOR\n";
+    if(_texture != nullptr)
+        SDL_DestroyTexture(_texture);
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Draw function //////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+
+void wifi::draw(){
+    //create the texture if this is the first time running draw
+    if(_texture == nullptr){
+        initTexture();
+        update();
+        update_texture();
+    }
+
+    SDL_RenderCopy(board::getRenderer(), _texture, NULL, NULL);
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Helper functions ///////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////
+// Update the information of wifi
+// This DOES NOT update the display
+void wifi::update() {
+    //this shows static info on the wifi network, which does need to change 
+    //therefore, no update
+}
+
+///////////////////////////////////////
+// Update the texture that is being 
+// displayed. Due to the nature of what
+// is being displayed, this will only
+// ever be called once, as the wifi
+// info doesnt change
+void wifi::update_texture(){
+    std::cerr << "WIFI::UPDATE_TEXTURE\n";
+    SDL_Rect tgt;
+
+    SDL_SetRenderTarget(board::getRenderer(), _texture);
+    SDL_RenderClear(board::getRenderer());
+
+    //place background image
+    SDL_RenderCopy(board::getRenderer(),
+            board::getImage("wifi_background.jpg"), NULL, NULL);
+
+
+
+
+
+    SDL_SetRenderTarget(board::getRenderer(), NULL);
+}
+
+///////////////////////////////////////
+// Lazy load the texture object
+// This is to make sure that all of SDL
+// is init before we attempt to draw anything
+void wifi::initTexture(){
+    std::cerr << "WIFI INIT TEXTURE\n";
+    if(_texture == nullptr){
+        _texture = SDL_CreateTexture(board::getRenderer(),
+                SDL_PIXELFORMAT_RGBA8888, 
+                SDL_TEXTUREACCESS_TARGET, 
+                SCREEN_WIDTH, SCREEN_HEIGHT);
+
+        SDL_SetTextureBlendMode(_texture, SDL_BLENDMODE_BLEND);
+    }
+}

src/panel/wifi.hpp

@@ -0,0 +1,31 @@
+///////////////////////////////////////////////////////////////////////////////
+// Tyler Perkins
+// 21-12-21
+// Wifi panel
+//
+
+#pragma once
+
+#include "panel.hpp"
+
+#include <SDL.h>
+#include <SDL2/SDL_image.h>
+#include <SDL2/SDL_ttf.h>
+
+#include <iostream>
+
+namespace dashboard::panel {
+    class wifi : public panel {
+    public:
+        wifi();
+        ~wifi();
+
+        void draw();
+    private:
+        void update();
+        void update_texture();
+        void initTexture();
+    };
+}
+
+#include "../board.hpp"

src/panel/wifi_config.hpp

@@ -0,0 +1,17 @@
+///////////////////////////////////////////////////////////////////////////////
+// Tyler Perkins
+// 21-12-21
+// def overlay configuration
+//
+
+#pragma once
+
+namespace dashboard::panel {
+    //Default time the slid is shown on the screen, in ms
+    //Default 15s
+    constexpr size_t WIFI_DEFAULT_TIME_ON_SCREEN = 15000;
+
+    //How long should we wait between updates? in ms
+    //Due to the nature of this panel, this value is ignored
+    constexpr size_t WIFI_UPDATE_INTERVAL = 60000;
+}