Move printer demo and energy-monitor into new top-level demos/ folder

These are showing off use-cases for Slint, but they're not examples showing individual Slint features. Also removed the old printerdemo while at it.
2025-08-31 07:37:24 +00:00 · 2024-10-24 17:02:17 +02:00 · 2024-10-24 17:02:17 +02:00 · a98d4709be
commit a98d4709be
parent acafc9c3e6
241 changed files with 187 additions and 982 deletions
--- a/demos/printerdemo/cpp/main.cpp
+++ b/demos/printerdemo/cpp/main.cpp
@ -0,0 +1,88 @@
+// Copyright © SixtyFPS GmbH <info@slint.dev>
+// SPDX-License-Identifier: MIT
+
+#include "printerdemo.h"
+#include "slint.h"
+
+#include <cstdlib>
+#include <ctime>
+#ifdef HAVE_GETTEXT
+#    include <locale>
+#    include <libintl.h>
+#endif
+
+struct InkLevelModel : slint::Model<InkLevel>
+{
+    size_t row_count() const override { return m_data.size(); }
+    std::optional<InkLevel> row_data(size_t i) const override
+    {
+        if (i < row_count())
+            return { m_data[i] };
+        return {};
+    }
+
+    std::vector<InkLevel> m_data = { { slint::Color::from_rgb_uint8(255, 255, 0), 0.9 },
+                                     { slint::Color::from_rgb_uint8(0, 255, 255), 0.5 },
+                                     { slint::Color::from_rgb_uint8(255, 0, 255), 0.8 },
+                                     { slint::Color::from_rgb_uint8(0, 0, 0), 0.1 } };
+};
+
+int main()
+{
+#ifdef HAVE_GETTEXT
+    bindtextdomain("printerdemo", SRC_DIR "/../lang");
+    std::locale::global(std::locale(""));
+#endif
+
+    auto printer_demo = MainWindow::create();
+    printer_demo->set_ink_levels(std::make_shared<InkLevelModel>());
+    printer_demo->on_quit([] { std::exit(0); });
+
+    auto printer_queue = std::make_shared<slint::VectorModel<PrinterQueueItem>>();
+    auto default_queue = printer_demo->global<PrinterQueue>().get_printer_queue();
+    for (int i = 0; i < default_queue->row_count(); ++i) {
+        printer_queue->push_back(*default_queue->row_data(i));
+    }
+    printer_demo->global<PrinterQueue>().set_printer_queue(printer_queue);
+
+    printer_demo->global<PrinterQueue>().on_start_job([=](slint::SharedString name) {
+        std::time_t now = std::chrono::system_clock::to_time_t(std::chrono::system_clock::now());
+        char time_buf[100] = { 0 };
+        std::strftime(time_buf, sizeof(time_buf), "%H:%M:%S %d/%m/%Y", std::localtime(&now));
+        PrinterQueueItem item;
+        item.status = "waiting";
+        item.progress = 0;
+        item.title = std::move(name);
+        item.owner = "joe@example.com";
+        item.pages = 1;
+        item.size = "100kB";
+        item.submission_date = time_buf;
+        printer_queue->push_back(item);
+    });
+
+    printer_demo->global<PrinterQueue>().on_cancel_job(
+            [=](int index) { printer_queue->erase(int(index)); });
+
+    slint::Timer printer_queue_progress_timer(std::chrono::seconds(1), [=]() {
+        if (printer_queue->row_count() > 0) {
+            auto top_item = *printer_queue->row_data(0);
+            top_item.progress += 1;
+            if (top_item.progress > 100) {
+                printer_queue->erase(0);
+            } else {
+                top_item.status = "printing";
+                printer_queue->set_row_data(0, top_item);
+            }
+        }
+    });
+
+#if defined(HAVE_GETTEXT) && defined(SLINT_FEATURE_GETTEXT)
+    printer_demo->global<PrinterSettings>().on_change_language([](int l) {
+        static const char *langs[] = { "en", "fr" };
+        setenv("LANGUAGE", langs[l], true);
+        slint::update_all_translations();
+    });
+#endif
+
+    printer_demo->run();
+}