99% working. Only issues are: data aborts when installing a theme after viewing a preview, bgm only works when installed as part of a theme shuffle. Single themes are silent

Makefile

@@ -50,7 +50,7 @@ CXXFLAGS	:= $(CFLAGS) -fno-rtti -fno-exceptions -std=gnu++11
 ASFLAGS	:=	-g $(ARCH)
 LDFLAGS	=	-specs=3dsx.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map)
 
-LIBS	:= -lctru -lm -lz
+LIBS	:= -lcitro3d -lctru -lm -lz
 
 #---------------------------------------------------------------------------------
 # list of directories containing libraries, this must be the top level containing

source/main.c

@@ -6,16 +6,52 @@
 #include "theme.h"
 #include "splashes.h"
 #include "unicode.h"
+#include "ui.h"
+// Taken from: https://stackoverflow.com/questions/22582989/word-wrap-program-c
+inline int wordlen(const char * str){
+   int tempindex=0;
+   while(str[tempindex]!=' ' && str[tempindex]!=0 && str[tempindex]!='\n'){
+      ++tempindex;
+   }
+   return(tempindex);
+}
+void wrap(char * s, const int wrapline){
+
+   int index=0;
+   int curlinelen = 0;
+   while(s[index] != '\0'){
+
+      if(s[index] == '\n'){
+         curlinelen=0;
+      }
+      else if(s[index] == ' '){
+
+         if(curlinelen+wordlen(&s[index+1]) >= wrapline){
+            s[index] = '\n';
+            curlinelen = 0;
+         }
+
+      }
+
+      curlinelen++;
+      index++;
+   }
+
+}
 
 int main(void)
 {
+    const u32 clear_color = RGBA8(255,255,255,255);
+    const u32 cornflower_blue = RGBA8(100,149,237,255);
+    const u32 select_gray = RGBA8(176,196,222,255);
+    const u32 text_color = RGBA8(32,32,32,255);
+    const u32 shuffle_green = RGBA8(152,251,152, 127);
     gfxInitDefault();
     cfguInit();
     srvInit();  
     hidInit();
     fsInit();   
     ptmSysmInit();
-    consoleInit(GFX_TOP, NULL);
     prepare_archives();
     unzip_themes();
     int theme_count = get_number_entries("/Themes");
@@ -24,28 +60,192 @@ int main(void)
     int splash_count = get_number_entries("/Splashes");
     u16 *splashes_list = calloc(splash_count, PATH_LENGTH);
     prepare_splashes(splashes_list);
-    printf("Theme count: %i\nSplash count: %i\n", theme_count, splash_count);
+    
+    gfxInitDefault();
+    gfxSet3D(false);
+    screen_init();
+
+    int top = 0;
+    int pos = 0;
+    const int select_size = 50;
+    bool change = true;
+    u32 kDown = hidKeysDown();
+    int select_count = 0;
+    bool splash_mode = false;
     
     while (aptMainLoop())
     {
         hidScanInput();
-        u32 kDown = hidKeysDown();
+        kDown = hidKeysDown();
-
+        if (kDown & KEY_DOWN)
-        if (kDown & KEY_A) {
-            for (int iter = 0; iter < splash_count; iter++)
         {
-                printu(&splashes_list[iter * PATH_LENGTH/sizeof(u16)]);
+            if (pos < 3) pos++;
+            else if (top + pos < theme_count - 1) top++;
+            change = true;
         }
+
+        if (kDown & KEY_UP)
+        {
+            if (pos > 0) pos--;
+            else if (top > 0) top--;
+            change = true;
         }
+
+        if (kDown & KEY_A)
+        {
+            screen_begin_frame();
+            screen_select(GFX_TOP);
+            screen_clear(GFX_TOP, clear_color);
+            screen_draw_rect(20, 20, 360, 200, cornflower_blue);
+            if (!splash_mode) screen_draw_string(25, 25, 0.7f, 0.7f, text_color, "Installing theme(s)...");
+            else screen_draw_string(25, 25, 0.7f, 0.7f, text_color, "Installing splash...");
+            screen_end_frame();
+            if (splash_mode) install_splash(&splashes_list[(pos + top) * PATH_LENGTH/sizeof(u16)]);
+            else if (select_count > 0) shuffle_install(themes_list, theme_count); else themeInstall(*themes_list[pos + top]);
+            screen_begin_frame();
+            screen_select(GFX_TOP);
+            screen_clear(GFX_TOP, clear_color);
+            screen_draw_rect(20, 20, 360, 200, cornflower_blue);
+            if (!splash_mode) screen_draw_string(25, 25, 0.7f, 0.7f, text_color, "Installing theme(s)...");
+            else screen_draw_string(25, 25, 0.7f, 0.7f, text_color, "Installing splash...");
+            screen_draw_string(25, 50, 0.7f, 0.7f, text_color, "Done!");
+            screen_end_frame();
+        }
+
+        if (kDown & KEY_X)
+        {
+            bool current_select = themes_list[top + pos]->selected;
+            if (current_select) select_count--;
+            if (!current_select) select_count++;
+            themes_list[top + pos]->selected = !current_select;
+            change = true;
+        }
+
+        // if (kDown & KEY_Y)
+        // {
+        //     screen_begin_frame();
+        //     screen_select(GFX_TOP);
+        //     char preview_path[524];
+        //     strcpy(preview_path, "sdmc:");
+        //     straucat(preview_path, themes_list[top + pos]->path);
+        //     strcat(preview_path, "/Preview.png");
+        //     screen_load_texture_file(THEME_PREVIEW_TEXT, preview_path, true);
+        //     screen_draw_texture(THEME_PREVIEW_TEXT, 0, 0);
+        //     screen_select(GFX_BOTTOM);
+        //     screen_draw_texture(THEME_PREVIEW_TEXT, -40, -240);
+        //     screen_end_frame();
+        //     hidScanInput();
+        //     kDown = hidKeysDown();
+        //     while (!(kDown & KEY_B))
+        //     {
+        //         hidScanInput();
+        //         kDown = hidKeysDown();
+        //     }
+        //     screen_unload_texture(THEME_PREVIEW_TEXT);
+        //     change = true;
+        // }
+
         if (kDown & KEY_START)
         {
             closeThemeArchives();   
             PTMSYSM_ShutdownAsync(0);
             ptmSysmExit();
         }
-        gfxFlushBuffers();
+
-        gfxSwapBuffers();
+        if (kDown & KEY_L)
-        gspWaitForVBlank();
+        {
+            splash_mode = !splash_mode;
+            change = true;
+        }
+
+        screen_begin_frame();
+        if (!change) goto end;
+        if (splash_mode) goto splash;
+        screen_select(GFX_TOP);
+        screen_clear(GFX_TOP, clear_color);
+        screen_draw_rect(20, 20, 360, 200, cornflower_blue);
+        char title[87];
+        char theme_name[0x40] = {0};
+        wtoa(theme_name, themes_list[top + pos]->title);
+        sprintf(title, "Title: %s\n", theme_name);
+        wrap(title, 20);
+        int height = screen_get_string_height(title, 0.6f, 0.6f);
+        screen_draw_string(210, 23, 0.6f, 0.6f, text_color, title);
+        char description[0x80 + 6];
+        char theme_desc[0x80] = {0};
+        wtoa(theme_desc, themes_list[top + pos]->description);
+        sprintf(description, "Desc: %s\n", theme_desc);
+        wrap(description, 23);
+        screen_draw_string(210, 23 + height, 0.5f, 0.5f, text_color, description);
+        height += screen_get_string_height(description, 0.5f, 0.5f);
+        char author[0x40 + 6];
+        char theme_auth[0x40] = {0};
+        wtoa(theme_auth, themes_list[top + pos]->author);
+        sprintf(author, "Auth: %s", theme_auth);
+        wrap(author, 23);
+        screen_draw_string(210, 23 + height, 0.5f, 0.5f, text_color, author);
+        screen_draw_string(23, 23, 0.8f, 0.8f, text_color, "Press Y\nfor preview");
+        screen_select(GFX_BOTTOM);
+        screen_clear(GFX_BOTTOM, clear_color);
+        screen_draw_rect(20, 20, 280, 200, cornflower_blue);
+        screen_draw_rect(20, 20 + (select_size * pos), 280, select_size, select_gray);
+        int y_text_pos = 37;
+        for (int i = 0; i < 4; i++)
+        {
+            if (i + top == theme_count) 
+            {
+                break;
+            }
+            if (themes_list[i + top]->selected) screen_draw_rect(20, 20 + (select_size * i), 280, select_size, shuffle_green);
+            char title[0x40] = {0};
+            char print_title[0x40] = {0};
+            wtoa(title, themes_list[i + top]->title);
+            float width = screen_get_string_width(title, 0.6f, 0.6f);
+            if (width > 210)
+            {
+                memcpy(print_title, title, 0x14);
+                strcat(print_title, "...");
+
+            } else strcpy(print_title, title);
+            screen_draw_string(70, y_text_pos, 0.6f, 0.6f, text_color, print_title);
+            y_text_pos += 50;
+        }
+        goto end;
+
+        splash:
+        screen_select(GFX_TOP);
+        screen_clear(GFX_TOP, clear_color);
+        screen_draw_rect(20, 20, 360, 200, cornflower_blue);
+
+        screen_select(GFX_BOTTOM);
+        screen_clear(GFX_BOTTOM, clear_color);
+        screen_draw_rect(20, 20, 280, 200, cornflower_blue);
+        screen_draw_rect(20, 20 + (select_size * pos), 280, select_size, select_gray);
+
+        int y_text_pos_splash = 37;
+        for (int i = 0; i < 4; i++)
+        {
+            if (i + top == splash_count) 
+            {
+                break;
+            }
+            char path[524] = {0};
+            char print_path[0x40] = {0};
+            wtoa(path, &splashes_list[(i + top) * PATH_LENGTH/sizeof(u16)]);
+            float width = screen_get_string_width(&path[10], 0.6f, 0.6f);
+            if (width > 210)
+            {
+                memcpy(print_path, &path[10], 0x14);
+                strcat(print_path, "...");
+
+            } else strcpy(print_path, &path[10]);
+            screen_draw_string(70, y_text_pos_splash, 0.6f, 0.6f, text_color, print_path);
+            y_text_pos_splash += 50;
+        }
+
+        end:
+        screen_end_frame();
+        change = false;
     }
 
     gfxExit();

source/theme.c

@@ -6,6 +6,7 @@
 #include "theme.h"
 #include "unicode.h"
 #include "minizip/unzip.h"
+#include "ui.h"
 
 Result prepare_archives()
 {
@@ -246,13 +247,7 @@ Result prepare_themes(theme_data** themes_list)
                 atow(theme_path, "/Themes/");
                 strucat(theme_path, entry->name);
                 parseSmdh(theme_info, theme_path);
-                /*
+                theme_info->selected = false;
-                FOR TESTING PURPOSES ONLY, REMOVE THIS LINE LATER!!!!
-                */
-                theme_info->selected = true;
-                /*
-                FOR TESTING PURPOSES ONLY, REMOVE ABOVE LINE LATER!!!
-                */
                 themes_list[iter++] = theme_info;
             }
             free(entry);
@@ -573,18 +568,17 @@ Result themeInstall(theme_data theme_to_install)
 
 Result shuffle_install(theme_data **themes, int len)
 {
+    
     u8 count = 0;
     theme_data *themes_to_be_shuffled[10] = {0};
     u32 body_sizes[10] = {0};
     u32 bgm_sizes[10] = {0};
-    
     // Load themes that are selected for shuffle
     for (int iter = 0; iter < len; iter++)
     {
-        if (themes[iter]->selected == true)
+        if (themes[iter]->selected) count++;
-            count++;
         if (count > 10) return(MAKERESULT(RL_USAGE, RS_INVALIDARG, RM_COMMON, RD_INVALID_SELECTION));
-        themes_to_be_shuffled[iter] = themes[iter];
+        if (themes[iter]->selected) themes_to_be_shuffled[count - 1] = themes[iter];
     }
 
     // Load and edit SaveData

source/ui.c

@@ -90,7 +90,7 @@ static void screen_set_blend(u32 color, bool rgb, bool alpha)
 	C3D_TexEnvColor(env, color);
 }
 
-static void screen_clear(gfxScreen_t screen, u32 color)
+void screen_clear(gfxScreen_t screen, u32 color)
 {	
 	C3D_FrameBufClear(screen == GFX_TOP ? &target_top->frameBuf : &target_bottom->frameBuf, C3D_CLEAR_ALL, color, 0);
 }

source/ui.h

@@ -18,10 +18,7 @@
 
 #define MAX_TEXTURES 				1024
 
-#define TEXTURE_BOTTOM_SCREEN_BG 	0
+#define THEME_PREVIEW_TEXT			 0
-#define TEXTURE_TOP_SCREEN_BG 		1
-#define TEXTURE_ICON 				2
-#define TEXTURE_DRIVE_ICON 			3
 
 #define RGBA8(r, g, b, a) 			((((a)&0xFF)<<24) | (((b)&0xFF)<<16) | (((g)&0xFF)<<8) | (((r)&0xFF)<<0))
 
@@ -56,5 +53,6 @@ void screen_draw_string(float x, float y, float scaleX, float scaleY, u32 color,
 void screen_draw_stringf(float x, float y, float scaleX, float scaleY, u32 color, const char * text, ...);
 void screen_draw_string_wrap(float x, float y, float scaleX, float scaleY, u32 color, float wrapX, const char * text);
 void screen_draw_rect(float x, float y, float width, float height, u32 color);
+void screen_clear(gfxScreen_t screen, u32 color);
 
 #endif

source/unicode.c

@@ -128,6 +128,17 @@ u16 *struacat(u16 *destination, const char *source)
     return destination;
 }
 
+char *straucat(char *destination, const u16 *source)
+{
+    ssize_t len = strlen(destination);
+    for (u16 i = len; i < strulen(source) + len; i++)
+    {
+        destination[i] = source[i - len];
+    }
+    destination[strulen(source) + len] = 0;
+    return destination;
+}
+
 // Prints a u16* for debug purposes
 // Must be properly null-terminated
 void printu(u16 *input)

source/unicode.h

@@ -8,4 +8,5 @@ u16 *strucpy(u16*, const u16*);
 ssize_t strulen(const u16*);
 u16 *strucat(u16*, const u16*);
 u16 *struacat(u16*, const char*);
+char *straucat(char *destination, const u16 *source);
 void printu(u16*);