Update configs to allocate correctly

README.md

@@ -24,8 +24,9 @@ Depends on
 optional dependencies
 ---------------------
 
-- rapidxml
-- libcurl
+- Weather/RSS
+  - rapidxml
+  - libcurl
 
 Building sdl2 on rpi
 --------------------

src/board.cpp

@@ -337,7 +337,6 @@ int board::init(){
 void board::start(){
     initConstResources();
     //get Panel size
-    const size_t panel_count = sizeof(PANELS) / sizeof(PANELS[0]);
     size_t i = 0;
 
     //timing, for dealing with framerates
@@ -353,13 +352,12 @@ void board::start(){
         fcount++;
 
         //check if we can loop back over
-        if(i > panel_count)
+        if(i > PANELS_LENGTH)
             i = 0;
 
-        //SDL_RenderClear(_renderer);
+        SDL_RenderClear(_renderer);
 
         //PLACEHOLDER, cycle color
-        /*
         {
             static uint8_t red = 0;
             static bool up = true;
@@ -379,12 +377,11 @@ void board::start(){
                 red --;
             }
         }
-        */
         //END PLACEHOLDER
 
 
         //call draw on the current panel
-        PANELS[i]->draw();
+        //PANELS[i]->draw();
 
         if(fcount % 10 == 0)
             std::cerr << "Frame : " << fcount << "\n";
@@ -416,7 +413,7 @@ void board::initConstResources(){
     SDL_Log("Static images directory prefix: %s\n", fullPath.c_str());
     SDL_Log("Loading static images into working memory...\n");
     for(unsigned int i = 0; 
-            i < (sizeof(IMAGE_LOCATIONS)/sizeof(IMAGE_LOCATIONS[0])); ++i){
+            i < IMAGE_LOCATIONS_LENGTH; ++i){
 
         SDL_Texture_Wrapper tw(fullPath + IMAGE_LOCATIONS[0]);
 
@@ -434,7 +431,7 @@ void board::initConstResources(){
     SDL_Log("Static Fonts directory prefix: %s\n", fullPath.c_str());
     SDL_Log("Loading fonts into working memory...\n");
     for(unsigned int i = 0;
-            i < (sizeof(FONT_LOCATIONS)/sizeof(FONT_LOCATIONS[0])); ++i){
+            i < FONT_LOCATIONS_LENGTH; ++i){
 
         SDL_Font_Wrapper fw(fullPath + FONT_LOCATIONS[0]._name, 
                 FONT_LOCATIONS[0]._size);
@@ -449,7 +446,7 @@ void board::initConstResources(){
     std::cerr << "=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=\n";
     SDL_Log("Loading static strings into working memory...\n");
     for(unsigned int i = 0;
-            i < (sizeof(CONST_STRINGS)/sizeof(CONST_STRINGS[0])); ++i){
+            i < CONST_STRINGS_LENGTH; ++i){
 
         SDL_Texture_Wrapper tw(CONST_STRINGS[i]._text,
                 { CONST_STRINGS[i]._font_size._name,

src/config.cpp

@@ -0,0 +1,49 @@
+///////////////////////////////////////////////////////////////////////////////
+// Tyler Perkins
+// 9-29-21
+// configuration file
+//
+
+#include "config.hpp"
+
+// PANELS
+// A list of all panels to be displayed, in order
+dashboard::panel::panel* PANELS[] = {
+    new dashboard::panel::weather(),
+};
+size_t PANELS_LENGTH = sizeof(PANELS)/sizeof(PANELS[0]);
+
+// IMAGE_LOCATIONS
+// Locations of all static images used
+const char* IMAGE_LOCATIONS[] = {
+    "bmp_24.png",
+    //Weather
+    "sunny.png",
+    "rainy.png",
+};
+size_t IMAGE_LOCATIONS_LENGTH = sizeof(IMAGE_LOCATIONS)/sizeof(IMAGE_LOCATIONS[0]);
+
+// FONT_LOCATIONS
+// Locations of all fonts used
+//struct FONT_SIZE {
+//    const char* _name;
+//    const size_t _size;
+//};
+const FONT_SIZE FONT_LOCATIONS[] = {
+    { "Roboto_Mono/RobotoMono-Medium.ttf", 24 },
+};
+size_t FONT_LOCATIONS_LENGTH = sizeof(FONT_LOCATIONS)/sizeof(FONT_LOCATIONS[0]);
+
+// CONST_STRINGS
+// All constant strings
+//struct FONT_SIZE_STRING {
+//    const char* _text;
+//    const FONT_SIZE _font_size;
+//};
+const FONT_SIZE_STRING CONST_STRINGS[] = {
+    //Weather strings
+    { "Today's Weather", { "Roboto_Mono/RobotoMono-Medium.ttf", 24 } },
+    { "Sunny"          , { "Roboto_Mono/RobotoMono-Medium.ttf", 24 } },
+    { "Rainy"          , { "Roboto_Mono/RobotoMono-Medium.ttf", 24 } },
+};
+size_t CONST_STRINGS_LENGTH = sizeof(CONST_STRINGS)/sizeof(CONST_STRINGS[0]);

src/config.def.hpp

@@ -95,6 +95,9 @@ constexpr char DATA_IMG[] = DATA_IMG_;
 // Locations of all static images used
 static const char* IMAGE_LOCATIONS[] = {
     "bmp_24.png",
+    //Weather
+    "sunny.png",
+    "rainy.png",
 };
 
 // FONT_DIR

src/panel/panel.hpp

@@ -26,5 +26,8 @@ namespace dashboard::panel {
         virtual void draw() = 0;
     
         size_t _time_on_screen = 0;
+
+    protected:
+        SDL_Texture* _texture;
     };
 }

src/panel/weather.cpp

@@ -14,16 +14,22 @@ using namespace dashboard::panel;
 ///////////////////////////////////////////////////////////////////////////////
 
 weather::weather(){
+    std::cerr << "WEATHER CONSTRUCTOR\n";
     _time_on_screen = WEATHER_DEFAULT_ON_SCREEN_TIME;
     _update_interval = std::chrono::milliseconds{UPDATE_INTERVAL};
     _last_update = std::chrono::high_resolution_clock::now();
     _rss = rss_utils::rss(WEATHER_URL_SOURCE);
 
+    _texture = SDL_CreateTexture(board::getRenderer(),
+            SDL_PIXELFORMAT_RGBA8888, 
+            SDL_TEXTUREACCESS_TARGET, 
+            SCREEN_WIDTH, SCREEN_HEIGHT);
+
     update();
 }
 
 weather::~weather(){
-
+    std::cerr << "WEATHER DECONSTRUCTOR\n";
 }
 
 ///////////////////////////////////////////////////////////////////////////////
@@ -36,10 +42,42 @@ void weather::draw(){
             > _update_interval){
         //TODO multithread this
         update();
+
+        update_texture();
     }
 
-    //TODO add this all to one canvas thing?
-    //BEGIN GRAPHICS
+    static SDL_Rect tgt = { 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT };
+
+    //SDL_RenderCopy(board::getRenderer(), _texture, NULL, 
+            //&tgt);
+
+    //TODO add this all to one texture
+
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Helper functions ///////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////
+// Update the information of the obj
+// This DOES NOT update the display
+void weather::update() {
+    std::cerr << "WEATHER::UPDATE\n";
+    _last_update = std::chrono::high_resolution_clock::now();
+
+    //fetch updates
+    _rss.update();
+    
+}
+
+///////////////////////////////////////
+// Update the texture that is being
+// displayed, based on data in 
+// _rss
+void weather::update_texture(){
+    //SDL_SetRenderTarget(board::getRenderer(), _texture);
+
     SDL_Rect tgt;
     tgt.x = 50;
     tgt.y = 50;
@@ -51,23 +89,5 @@ void weather::draw(){
             board::getString(_rss.getTitle(), 
                 { "Roboto_Mono/RobotoMono-Medium.ttf", 24 }), NULL, &tgt );
 
-
-
-    //END GRAPHICS
-
-    SDL_RenderPresent(board::getRenderer());
-
-}
-
-///////////////////////////////////////////////////////////////////////////////
-// Helper functions ///////////////////////////////////////////////////////////
-///////////////////////////////////////////////////////////////////////////////
-
-void weather::update() {
-    std::cerr << "WEATHER::UPDATE\n";
-    _last_update = std::chrono::high_resolution_clock::now();
-
-    //fetch updates
-    _rss.update();
-    
+    //SDL_SetRenderTarget(board::getRenderer(), NULL);
 }

src/panel/weather.hpp

@@ -27,6 +27,7 @@ namespace dashboard::panel {
 
     private:
         void update();
+        void update_texture();
 
         rss_utils::rss _rss;
         std::chrono::time_point<std::chrono::high_resolution_clock> _last_update;