feat: use icons in PDF viewer toolbar; default Music app to user's Music folder

programs/src/music/main.cpp

@@ -1478,7 +1478,7 @@ extern "C" void _start() {
     auto set_user_home = [&]() {
         char username[32] = {};
         if (montauk::getuser(username, sizeof(username)) > 0 && username[0]) {
-            snprintf(g.dir_path, sizeof(g.dir_path), "0:/users/%s", username);
+            snprintf(g.dir_path, sizeof(g.dir_path), "0:/users/%s/Music", username);
         } else {
             memcpy(g.dir_path, "0:/home", 8);
         }

programs/src/pdfviewer/main.cpp

@@ -32,6 +32,9 @@ TrueTypeFont* g_font = nullptr;
 TrueTypeFont* g_font_bold = nullptr;
 TrueTypeFont* g_font_mono = nullptr;
 
+SvgIcon g_icon_folder = {};
+SvgIcon g_icon_print = {};
+
 char g_status_msg[128] = {};
 
 // ============================================================================
@@ -39,14 +42,14 @@ char g_status_msg[128] = {};
 // ============================================================================
 
 // Toolbar buttons: Open | Print | < > | - +
-static constexpr int TB_OPEN_X0 = 4, TB_OPEN_X1 = 40;
-static constexpr int TB_PRINT_X0 = 44, TB_PRINT_X1 = 80;
-// separator at 88
-static constexpr int TB_PREV_X0 = 96, TB_PREV_X1 = 120;
-static constexpr int TB_NEXT_X0 = 124, TB_NEXT_X1 = 148;
-// separator at 156
-static constexpr int TB_ZOUT_X0 = 164, TB_ZOUT_X1 = 188;
-static constexpr int TB_ZIN_X0  = 192, TB_ZIN_X1  = 216;
+static constexpr int TB_OPEN_X0 = 4, TB_OPEN_X1 = 28;
+static constexpr int TB_PRINT_X0 = 32, TB_PRINT_X1 = 56;
+// separator at 64
+static constexpr int TB_PREV_X0 = 72, TB_PREV_X1 = 96;
+static constexpr int TB_NEXT_X0 = 100, TB_NEXT_X1 = 124;
+// separator at 132
+static constexpr int TB_ZOUT_X0 = 140, TB_ZOUT_X1 = 164;
+static constexpr int TB_ZIN_X0  = 168, TB_ZIN_X1  = 192;
 
 // ============================================================================
 // Helpers
@@ -161,6 +164,11 @@ extern "C" void _start() {
     g_font_bold = load_font("0:/fonts/Roboto-Bold.ttf");
     g_font_mono = load_font("0:/fonts/JetBrainsMono-Regular.ttf");
 
+    // Load toolbar icons
+    Color icon_color = HEADER_TEXT;
+    g_icon_folder = svg_load("0:/icons/folder.svg", 16, 16, icon_color);
+    g_icon_print = svg_load("0:/icons/printer-symbolic.svg", 16, 16, icon_color);
+
     // Check for file argument
     char args[512] = {};
     int arglen = montauk::getargs(args, sizeof(args));
@@ -368,6 +376,8 @@ extern "C" void _start() {
     }
 
     free_pdf();
+    if (g_icon_folder.pixels) svg_free(g_icon_folder);
+    if (g_icon_print.pixels) svg_free(g_icon_print);
     win.destroy();
     montauk::exit(0);
 }

programs/src/pdfviewer/pdfviewer.h

@@ -10,6 +10,8 @@
 #include <montauk/string.h>
 #include <montauk/heap.h>
 #include <gui/gui.hpp>
+#include <gui/svg.hpp>
+#include <gui/canvas.hpp>
 #include <gui/truetype.hpp>
 
 extern "C" {
@@ -144,6 +146,9 @@ extern TrueTypeFont* g_font;
 extern TrueTypeFont* g_font_bold;
 extern TrueTypeFont* g_font_mono;
 
+extern SvgIcon g_icon_folder;
+extern SvgIcon g_icon_print;
+
 extern char g_status_msg[128];
 
 // ============================================================================

programs/src/pdfviewer/render.cpp

@@ -162,6 +162,7 @@ void render(uint32_t* pixels) {
     px_fill(pixels, g_win_w, g_win_h, 0, 0, g_win_w, TOOLBAR_H, TOOLBAR_BG);
     px_hline(pixels, g_win_w, g_win_h, 0, TOOLBAR_H - 1, g_win_w, GRID_COLOR);
 
+    Canvas tb_canvas(pixels, g_win_w, g_win_h);
     int bx = 4;
     auto tb_btn = [&](int w, bool active, const char* label) {
         Color bg = active ? TB_BTN_ACTIVE : TB_BTN_BG;
@@ -175,14 +176,29 @@ void render(uint32_t* pixels) {
         }
         bx += w + 4;
     };
+    auto tb_icon_btn = [&](const SvgIcon& icon, const char* fallback) {
+        px_fill_rounded(pixels, g_win_w, g_win_h, bx, TB_BTN_Y, TB_BTN_SIZE, TB_BTN_SIZE,
+                        TB_BTN_RAD, TB_BTN_BG);
+        if (icon.pixels) {
+            tb_canvas.icon(bx + (TB_BTN_SIZE - icon.width) / 2,
+                           TB_BTN_Y + (TB_BTN_SIZE - icon.height) / 2, icon);
+        } else if (g_font && fallback && fallback[0]) {
+            int tw = g_font->measure_text(fallback, HEADER_FONT);
+            g_font->draw_to_buffer(pixels, g_win_w, g_win_h,
+                bx + (TB_BTN_SIZE - tw) / 2,
+                TB_BTN_Y + (TB_BTN_SIZE - HEADER_FONT) / 2,
+                fallback, HEADER_TEXT, HEADER_FONT);
+        }
+        bx += TB_BTN_SIZE + 4;
+    };
     auto tb_sep = [&]() {
         px_vline(pixels, g_win_w, g_win_h, bx, 6, TOOLBAR_H - 12, TB_SEP_COLOR);
         bx += 8;
     };
 
     // Open / Print
-    tb_btn(36, false, "Open");
-    tb_btn(36, false, "Print");
+    tb_icon_btn(g_icon_folder, "O");
+    tb_icon_btn(g_icon_print, "P");
     tb_sep();
 
     // Navigation