feature add download dialog for download file.

src/slic3r/CMakeLists.txt

@@ -506,6 +506,8 @@ set(SLIC3R_GUI_SOURCES
     GUI/SSWCP.hpp
     GUI/DownloadManager.cpp
     GUI/DownloadManager.hpp
+    GUI/GenericDownloadDialog.cpp
+    GUI/GenericDownloadDialog.hpp
     GUI/WebPresetDialog.hpp
     GUI/WebPresetDialog.cpp
     GUI/WebSMUserLoginDialog.cpp

src/slic3r/GUI/BBLStatusBarSend.cpp

@@ -57,6 +57,7 @@ BBLStatusBarSend::BBLStatusBarSend(wxWindow *parent, int id)
     m_cancelbutton->SetBorderColor(btn_bd_white);
     m_cancelbutton->SetTextColor(btn_txt_white);
     m_cancelbutton->SetCornerRadius(m_self->FromDIP(12));
+    m_cancelbutton->SetCursor(wxCURSOR_HAND);
     m_cancelbutton->Bind(wxEVT_BUTTON, 
         [this](wxCommandEvent &evt) {
         m_was_cancelled = true;

src/slic3r/GUI/DownloadManager.cpp

@@ -3,10 +3,37 @@
 #include <boost/filesystem.hpp>
 #include <boost/nowide/fstream.hpp>
 #include <boost/log/trivial.hpp>
+#include <boost/format.hpp>
 #include <vector>
 
 namespace Slic3r { namespace GUI {
 
+// ============================================================================
+// Helper Functions
+// ============================================================================
+
+std::string DownloadManager::get_unique_file_path(const boost::filesystem::path& file_path)
+{
+    if (!boost::filesystem::exists(file_path)) {
+        return file_path.string();
+    }
+    
+    boost::filesystem::path parent_dir = file_path.parent_path();
+    std::string filename = file_path.filename().string();
+    std::string extension = file_path.extension().string();
+    std::string name_without_ext = filename.substr(0, filename.size() - extension.size());
+    
+    size_t version = 1;
+    boost::filesystem::path unique_path;
+    do {
+        std::string new_filename = name_without_ext + "(" + std::to_string(version) + ")" + extension;
+        unique_path = parent_dir / new_filename;
+        version++;
+    } while (boost::filesystem::exists(unique_path) && version < 10000);  // Safety limit
+    
+    return unique_path.string();
+}
+
 // ============================================================================
 // WCP Download Interface (for Web-to-PC communication)
 // ============================================================================
@@ -22,11 +49,16 @@ size_t DownloadManager::start_wcp_download(const std::string& file_url,
     boost::filesystem::path dest_folder(downloadPath);
     boost::filesystem::create_directories(dest_folder);
     boost::filesystem::path dest_file = dest_folder / file_name;
-    std::string dest_path = dest_file.string();
+    
+    // Generate unique file path if file already exists
+    std::string dest_path = get_unique_file_path(dest_file);
+    
+    // Update file_name if it was changed due to duplicate
+    std::string actual_file_name = boost::filesystem::path(dest_path).filename().string();
     
     auto task = std::make_shared<DownloadTask>(task_id, 
                                                 file_url, 
-                                                file_name, 
+                                                actual_file_name, 
                                                 dest_path, 
                                                 wcp_instance,
                                                 use_original_event_id);
@@ -51,11 +83,14 @@ size_t DownloadManager::start_internal_download(const std::string& file_url,
     
     boost::filesystem::path dest_file_path(dest_path);
     boost::filesystem::create_directories(dest_file_path.parent_path());
+    
+    // Generate unique file path if file already exists
+    std::string unique_dest_path = get_unique_file_path(dest_file_path);
 
     auto task = std::make_shared<DownloadTask>(task_id, 
                                                 file_url, 
                                                 file_name, 
-                                                dest_path, 
+                                                unique_dest_path, 
                                                 std::move(callbacks));
 
     task->state = DownloadTaskState::Downloading;
@@ -75,7 +110,9 @@ size_t DownloadManager::start_internal_download(const std::string& file_url,
     boost::filesystem::create_directories(dest_folder);
     
     boost::filesystem::path dest_file = dest_folder / file_name;
-    std::string dest_path = dest_file.string();
+    
+    // Generate unique file path if file already exists
+    std::string dest_path = get_unique_file_path(dest_file);
     
     return start_internal_download(file_url, file_name, dest_path, std::move(callbacks));
 }
@@ -133,12 +170,22 @@ void DownloadManager::start_download_impl(std::shared_ptr<DownloadTask> task) {
                         // Save file
                         boost::nowide::ofstream file(task->dest_path, std::ios::binary);
                         if (!file.is_open()) {
-                            send_error_update(task, "Failed to open file for writing");
+                            std::string error_msg = "Failed to open file for writing: " + task->dest_path;
+                            BOOST_LOG_TRIVIAL(error) << "DownloadManager: " << error_msg;
+                            send_error_update(task, error_msg);
                             cleanup_task(task->task_id);
                             return;
                         }
                         
                         file.write(body.c_str(), body.size());
+                        if (file.fail()) {
+                            std::string error_msg = "Failed to write file: " + task->dest_path;
+                            BOOST_LOG_TRIVIAL(error) << "DownloadManager: " << error_msg << ", body size: " << body.size();
+                            file.close();
+                            send_error_update(task, error_msg);
+                            cleanup_task(task->task_id);
+                            return;
+                        }
                         file.close();
                         
                         task->state = DownloadTaskState::Completed;
@@ -146,7 +193,9 @@ void DownloadManager::start_download_impl(std::shared_ptr<DownloadTask> task) {
                         send_complete_update(task, task->dest_path);
                         cleanup_task(task->task_id);
                     } catch (std::exception& e) {
-                        send_error_update(task, e.what());
+                        std::string error_msg = std::string("File write exception: ") + e.what();
+                        BOOST_LOG_TRIVIAL(error) << "DownloadManager: " << error_msg << ", file: " << task->dest_path;
+                        send_error_update(task, error_msg);
                         cleanup_task(task->task_id);
                     }
                 });
@@ -155,6 +204,11 @@ void DownloadManager::start_download_impl(std::shared_ptr<DownloadTask> task) {
             // Step 4: Set error callback
             http.on_error([this, task](std::string body, std::string error, unsigned status) {
                 wxGetApp().CallAfter([this, task, error, status]() {
+                    std::string error_msg = boost::str(boost::format("HTTP error: %1% (status: %2%)") % error % status);
+                    BOOST_LOG_TRIVIAL(error) << "DownloadManager: " << error_msg 
+                        << ", URL: " << task->file_url 
+                        << ", file: " << task->file_name
+                        << ", dest: " << task->dest_path;
                     task->state = DownloadTaskState::Error;
                     task->error_message = error;
                     send_error_update(task, error);
@@ -166,6 +220,11 @@ void DownloadManager::start_download_impl(std::shared_ptr<DownloadTask> task) {
             task->http_object = http.perform();
             
         } catch (std::exception& e) {
+            std::string error_msg = std::string("Download exception: ") + e.what();
+            BOOST_LOG_TRIVIAL(error) << "DownloadManager: " << error_msg 
+                << ", URL: " << task->file_url 
+                << ", file: " << task->file_name
+                << ", dest: " << task->dest_path;
             task->state = DownloadTaskState::Error;
             task->error_message = e.what();
             send_error_update(task, e.what());
@@ -197,14 +256,14 @@ bool DownloadManager::cancel_download(size_t task_id) {
             if (task->is_wcp_download()) {
                 wcp_to_destroy = task->wcp_instance.lock();
             } else {
-                // For internal downloads, call error callback if available
-                if (task->callbacks.on_error) {
-                    wxGetApp().CallAfter([task]() {
-                        if (task->callbacks.on_error) {
-                            task->callbacks.on_error(task->task_id, "Download canceled");
-                        }
-                    });
-                }
+                // For internal downloads, don't call error callback if task is being canceled
+                // during destruction (e.g., when dialog is closing). The callback may reference
+                // a destroyed dialog object, causing a crash.
+                // Note: We clear the callbacks before cleanup to prevent any delayed callbacks
+                // from accessing destroyed objects.
+                task->callbacks.on_error = nullptr;
+                task->callbacks.on_progress = nullptr;
+                task->callbacks.on_complete = nullptr;
             }
             
             cleanup_task(task_id);

src/slic3r/GUI/DownloadManager.hpp

@@ -198,6 +198,10 @@ private:
     
     // Clean up completed task
     void cleanup_task(size_t task_id);
+    
+    // Generate unique file path if file already exists
+    // Returns path like "file(1).zip", "file(2).zip" etc.
+    static std::string get_unique_file_path(const boost::filesystem::path& file_path);
 };
 
 }} // namespace Slic3r::GUI

src/slic3r/GUI/GenericDownloadDialog.cpp

@@ -0,0 +1,423 @@
+#include "GenericDownloadDialog.hpp"
+
+#include <wx/settings.h>
+#include <wx/sizer.h>
+#include <wx/stattext.h>
+#include <wx/button.h>
+#include <wx/hyperlink.h>
+#include <wx/textctrl.h>
+#include <wx/scrolwin.h>
+#include <wx/event.h>
+#include <wx/dcgraph.h>
+
+#include <boost/log/trivial.hpp>
+#include <boost/format.hpp>
+
+#include <boost/algorithm/string/replace.hpp>
+#include <boost/filesystem.hpp>
+
+#include "libslic3r/libslic3r.h"
+#include "libslic3r/Utils.hpp"
+#include "GUI.hpp"
+#include "I18N.hpp"
+#include "wxExtensions.hpp"
+#include "slic3r/GUI/MainFrame.hpp"
+#include "GUI_App.hpp"
+#include "slic3r/GUI/DownloadManager.hpp"
+
+namespace Slic3r {
+namespace GUI {
+
+GenericDownloadDialog::GenericDownloadDialog(wxString title,
+                                             const std::string& file_url,
+                                             const std::string& file_name,
+                                             const std::string& dest_path,
+                                             wxWindow* parent)
+    : DPIDialog(parent ? parent : static_cast<wxWindow *>(wxGetApp().mainframe), 
+                wxID_ANY, title, wxDefaultPosition, wxDefaultSize, wxCAPTION | wxCLOSE_BOX)
+    , m_title(title)
+    , m_file_url(file_url)
+    , m_file_name(file_name)
+    , m_dest_path(dest_path)
+{
+    std::string icon_path = (boost::format("%1%/images/Snapmaker_OrcaTitle.ico") % resources_dir()).str();
+    SetIcon(wxIcon(encode_path(icon_path.c_str()), wxBITMAP_TYPE_ICO));
+
+    SetBackgroundColour(*wxWHITE);
+    setup_ui();
+
+    Bind(wxEVT_CLOSE_WINDOW, &GenericDownloadDialog::on_close, this);
+    wxGetApp().UpdateDlgDarkUI(this);
+   
+}
+
+GenericDownloadDialog::~GenericDownloadDialog()
+{
+    m_is_destroying = true;
+    m_task_id = 0;
+}
+
+void GenericDownloadDialog::setup_ui()
+{
+    wxBoxSizer *m_sizer_main = new wxBoxSizer(wxVERTICAL);
+    auto m_line_top = new wxPanel(this, wxID_ANY, wxDefaultPosition, wxSize(-1, 1));
+    m_line_top->SetBackgroundColour(wxColour(166, 169, 170));
+    m_sizer_main->Add(m_line_top, 0, wxEXPAND, 0);
+
+    m_simplebook_status = new wxSimplebook(this);
+    m_simplebook_status->SetSize(wxSize(FromDIP(420), FromDIP(100)));
+    m_simplebook_status->SetMinSize(wxSize(FromDIP(420), FromDIP(100)));
+    m_simplebook_status->SetMaxSize(wxSize(FromDIP(420), FromDIP(250)));
+
+    // Progress page
+    m_status_bar = std::make_shared<BBLStatusBarSend>(m_simplebook_status);
+    m_panel_download = m_status_bar->get_panel();
+    m_panel_download->SetSize(wxSize(FromDIP(400), FromDIP(70)));
+    m_panel_download->SetMinSize(wxSize(FromDIP(400), FromDIP(70)));
+    m_panel_download->SetMaxSize(wxSize(FromDIP(400), FromDIP(70)));
+
+    // Complete page
+    m_panel_complete = new wxPanel(m_simplebook_status, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTAB_TRAVERSAL);
+    wxBoxSizer* sizer_complete = new wxBoxSizer(wxVERTICAL);
+    
+    m_complete_text = new wxStaticText(m_panel_complete, wxID_ANY, _L("Download completed successfully!"), 
+                                       wxDefaultPosition, wxDefaultSize, 0);
+    m_complete_text->SetForegroundColour(*wxBLACK);
+    m_complete_text->Wrap(FromDIP(360));
+    sizer_complete->Add(m_complete_text, 0, wxALIGN_CENTER | wxALL, 5);
+    
+    StateColor btn_close_bg(std::pair<wxColour, int>(wxColour(0x90, 0x90, 0x90), StateColor::Disabled),
+        std::pair<wxColour, int>(wxColour(206, 206, 206), StateColor::Pressed),
+        std::pair<wxColour, int>(wxColour(238, 238, 238), StateColor::Hovered),
+        std::pair<wxColour, int>(wxColour(231, 231, 231), StateColor::Normal));
+    
+    StateColor btn_close_bd(std::pair<wxColour, int>(wxColour(255, 255, 254), StateColor::Disabled),
+        std::pair<wxColour, int>(wxColour(38, 46, 48), StateColor::Enabled));
+    
+    StateColor btn_close_txt(std::pair<wxColour, int>(wxColour("#FFFFFE"), StateColor::Disabled),
+        std::pair<wxColour, int>(wxColour(36, 36, 36), StateColor::Normal));
+    
+    m_close_button = new Button(m_panel_complete, _L("Close"));
+    m_close_button->SetSize(wxSize(FromDIP(80), FromDIP(28)));
+    m_close_button->SetMinSize(wxSize(FromDIP(80), FromDIP(28)));
+    m_close_button->SetMaxSize(wxSize(FromDIP(80), FromDIP(28)));
+
+    m_close_button->SetBackgroundColour(*wxWHITE);
+    m_close_button->SetBackgroundColor(btn_close_bg);
+    m_close_button->SetBorderColor(btn_close_bd);
+    m_close_button->SetTextColor(btn_close_txt);
+    m_close_button->SetCornerRadius(FromDIP(12));
+    m_close_button->SetCursor(wxCURSOR_HAND);
+    m_close_button->Bind(wxEVT_BUTTON, &GenericDownloadDialog::on_close_clicked, this);
+
+    sizer_complete->Add(m_close_button, 0, wxALIGN_CENTER | wxALL, 5);
+    
+    m_panel_complete->SetSizer(sizer_complete);
+    m_panel_complete->Layout();
+    sizer_complete->Fit(m_panel_complete);
+
+    // Error page
+    m_panel_error = new wxPanel(m_simplebook_status, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTAB_TRAVERSAL);
+    wxBoxSizer* sizer_error = new wxBoxSizer(wxVERTICAL);
+    
+    // Simple label for error message display
+    m_error_text = new wxStaticText(m_panel_error, wxID_ANY, wxEmptyString,
+                                     wxDefaultPosition, wxSize(FromDIP(380), -1),
+                                     wxALIGN_LEFT | wxST_ELLIPSIZE_END);
+    m_error_text->SetForegroundColour(*wxBLACK);
+    m_error_text->Wrap(FromDIP(380));
+    sizer_error->Add(m_error_text, 0, wxEXPAND | wxLEFT | wxTOP | wxRIGHT, FromDIP(10));
+    
+    // Button sizer aligned to right
+    wxBoxSizer* sizer_buttons = new wxBoxSizer(wxHORIZONTAL);
+    sizer_buttons->AddStretchSpacer(); 
+    
+    StateColor btn_retry_bg(std::pair<wxColour, int>(wxColour(255, 255, 255), StateColor::Disabled),
+        std::pair<wxColour, int>(wxColour(206, 206, 206), StateColor::Pressed),
+        std::pair<wxColour, int>(wxColour(23, 99, 226), StateColor::Hovered),  // Same as Normal
+        std::pair<wxColour, int>(wxColour(23, 99, 226), StateColor::Normal));
+    
+    // Set border color to same as background to avoid corner color issues
+    StateColor btn_retry_bd(std::pair<wxColour, int>(wxColour(255, 255, 255), StateColor::Disabled),
+        std::pair<wxColour, int>(wxColour(23, 99, 226), StateColor::Enabled));  // Same as background
+    
+    StateColor btn_retry_txt(std::pair<wxColour, int>(wxColour("#FFFFFE"), StateColor::Disabled),
+        std::pair<wxColour, int>(wxColour(255, 255, 255), StateColor::Normal));
+    
+    m_retry_button = new Button(m_panel_error, _L("Retry"));
+    m_retry_button->SetSize(wxSize(FromDIP(80), FromDIP(28)));
+    m_retry_button->SetMinSize(wxSize(FromDIP(80), FromDIP(28)));
+    m_retry_button->SetMaxSize(wxSize(FromDIP(80), FromDIP(28)));
+    // Set window background color to white to ensure rounded corners are white
+    m_retry_button->SetBackgroundColour(*wxWHITE);
+    m_retry_button->SetBackgroundColor(btn_retry_bg);
+    m_retry_button->SetBorderColor(btn_retry_bg);
+    m_retry_button->SetTextColor(btn_retry_txt);
+    m_retry_button->SetCornerRadius(FromDIP(12));
+    m_retry_button->SetCursor(wxCURSOR_HAND);
+    m_retry_button->Bind(wxEVT_BUTTON, &GenericDownloadDialog::on_retry_clicked, this);
+
+    // Setup StateColor for determine button (gray style)
+    StateColor btn_determine_bg(std::pair<wxColour, int>(wxColour(255, 255, 255), StateColor::Disabled),
+        std::pair<wxColour, int>(wxColour(206, 206, 206), StateColor::Pressed),
+        std::pair<wxColour, int>(wxColour(238, 238, 238), StateColor::Hovered),
+        std::pair<wxColour, int>(wxColour(231, 231, 231), StateColor::Normal));
+    
+    StateColor btn_determine_bd(std::pair<wxColour, int>(wxColour(255, 255, 255), StateColor::Disabled),
+        std::pair<wxColour, int>(wxColour(38, 46, 48), StateColor::Enabled));
+    
+    StateColor btn_determine_txt(std::pair<wxColour, int>(wxColour("#FFFFFE"), StateColor::Disabled),
+        std::pair<wxColour, int>(wxColour(36, 36, 36), StateColor::Normal));
+    
+    m_error_close_button = new Button(m_panel_error, _L("Determine"));
+    m_error_close_button->SetSize(wxSize(FromDIP(80), FromDIP(28)));
+    m_error_close_button->SetMinSize(wxSize(FromDIP(80), FromDIP(28)));
+    m_error_close_button->SetMaxSize(wxSize(FromDIP(80), FromDIP(28)));
+    // Set window background color to white to ensure rounded corners are white
+    m_error_close_button->SetBackgroundColour(*wxWHITE);
+    m_error_close_button->SetBackgroundColor(btn_determine_bg);
+    m_error_close_button->SetBorderColor(btn_determine_bg);
+    m_error_close_button->SetTextColor(btn_determine_txt);
+    m_error_close_button->SetCornerRadius(FromDIP(12));
+    m_error_close_button->SetCursor(wxCURSOR_HAND);
+    m_error_close_button->Bind(wxEVT_BUTTON, &GenericDownloadDialog::on_close_clicked, this);
+    sizer_buttons->Add(m_error_close_button, 0, 0);
+    sizer_buttons->AddSpacer(FromDIP(6));
+    sizer_buttons->Add(m_retry_button, 0, 0);
+        
+    sizer_error->AddSpacer(FromDIP(40));
+    sizer_error->Add(sizer_buttons, 0, wxALIGN_RIGHT | wxRIGHT, FromDIP(24));
+    
+    
+    m_panel_error->SetSizer(sizer_error);
+    m_panel_error->Layout();
+    sizer_error->Fit(m_panel_error);
+
+
+    m_sizer_main->Add(m_simplebook_status, 0, wxALL, FromDIP(16));
+
+    m_simplebook_status->AddPage(m_panel_download, wxEmptyString, true);
+    m_simplebook_status->AddPage(m_panel_complete, wxEmptyString, false);
+    m_simplebook_status->AddPage(m_panel_error, wxEmptyString, false);
+
+    SetSizer(m_sizer_main);
+    Layout();
+    Fit();
+    CentreOnParent();
+}
+
+wxString GenericDownloadDialog::format_text(wxStaticText* st, wxString str, int warp)
+{
+    if (wxGetApp().app_config->get("language") != "zh_CN") { 
+        return str; 
+    }
+
+    wxString out_txt = str;
+    wxString count_txt = "";
+    
+    for (int i = 0; i < str.length(); i++) {
+        auto text_size = st->GetTextExtent(count_txt);
+        if (text_size.x < warp) {
+            count_txt += str[i];
+        } else {
+            out_txt.insert(i - 1, '\n');
+            count_txt = "";
+        }
+    }
+    return out_txt;
+}
+
+void GenericDownloadDialog::start_download()
+{
+    show_progress_page();
+    m_status_bar->set_progress(0);
+    m_status_bar->set_status_text(_L("Preparing download..."));
+    m_status_bar->change_button_label(_L("Cancel"));
+    m_status_bar->set_cancel_callback_fina([this]() {
+        if (m_task_id > 0) {
+            DownloadManager::getInstance().cancel_download(m_task_id);
+            m_task_id = 0;  // Mark as canceled to prevent duplicate cancellation
+        }
+    });
+
+    // Create download callbacks
+    DownloadCallbacks callbacks;
+    callbacks.on_progress = [this](size_t task_id, int percent, size_t downloaded, size_t total) {
+        on_download_progress(task_id, percent, downloaded, total);
+    };
+    callbacks.on_complete = [this](size_t task_id, const std::string& file_path) {
+        on_download_complete(task_id, file_path);
+    };
+    callbacks.on_error = [this](size_t task_id, const std::string& error) {
+        on_download_error(task_id, error);
+    };
+
+    // Start download
+    if (m_dest_path.empty()) {
+        m_task_id = DownloadManager::getInstance().start_internal_download(
+            m_file_url, m_file_name, std::move(callbacks));
+    } else {
+        m_task_id = DownloadManager::getInstance().start_internal_download(
+            m_file_url, m_file_name, m_dest_path, std::move(callbacks));
+    }
+}
+
+int GenericDownloadDialog::ShowModal()
+{
+    start_download();
+    return DPIDialog::ShowModal();
+}
+
+void GenericDownloadDialog::on_download_progress(size_t task_id, int percent, size_t downloaded, size_t total)
+{
+    wxGetApp().CallAfter([this, percent, downloaded, total]() {
+        // Check if dialog is being destroyed
+        if (m_is_destroying || IsBeingDeleted()) {
+            return;
+        }
+        
+        update_progress(percent);
+        
+        // Format status text
+        wxString status_text;
+        if (total > 0) {
+            double downloaded_mb = downloaded / (1024.0 * 1024.0);
+            double total_mb = total / (1024.0 * 1024.0);
+            status_text = wxString::Format(_L("Downloading: %.1f MB / %.1f MB (%d%%)"), 
+                                          downloaded_mb, total_mb, percent);
+        } else {
+            double downloaded_mb = downloaded / (1024.0 * 1024.0);
+            status_text = wxString::Format(_L("Downloading: %.1f MB..."), downloaded_mb);
+        }
+        m_status_bar->set_status_text(status_text);
+        
+        // Call user callback if set
+        if (m_on_progress) {
+            m_on_progress(m_task_id, percent, downloaded, total);
+        }
+    });
+}
+
+void GenericDownloadDialog::on_download_complete(size_t task_id, const std::string& file_path)
+{
+    wxGetApp().CallAfter([this, file_path]() {
+        // Check if dialog is being destroyed
+        if (m_is_destroying || IsBeingDeleted()) {
+            return;
+        }
+        
+        m_download_success = true;
+        m_file_path = file_path;
+        show_complete_page();
+        
+        // Mark task as completed - no need to cancel it
+        m_task_id = 0;
+        
+        // Call user callback if set
+        if (m_on_complete) {
+            m_on_complete(m_task_id, file_path);
+        }
+    });
+}
+
+void GenericDownloadDialog::on_download_error(size_t task_id, const std::string& error)
+{
+    // Log detailed error information for debugging
+    BOOST_LOG_TRIVIAL(error) << boost::format("GenericDownloadDialog: Download failed for file '%1%' from URL '%2%'. Error: %3%")
+        % m_file_name % m_file_url % error;
+    
+    wxGetApp().CallAfter([this, error]() {
+        // Check if dialog is being destroyed
+        if (m_is_destroying || IsBeingDeleted()) {
+            return;
+        }
+        
+        m_download_success = false;
+        m_error_message = error;
+        show_error_page(error);
+        
+        // Mark task as completed (failed) - no need to cancel it
+        m_task_id = 0;
+        
+        // Call user callback if set
+        if (m_on_error) {
+            m_on_error(m_task_id, error);
+        }
+    });
+}
+
+void GenericDownloadDialog::on_retry_clicked(wxCommandEvent& event)
+{
+    if (m_on_retry) {
+        m_on_retry();
+    }
+    start_download();
+    event.Skip();
+}
+
+void GenericDownloadDialog::on_close_clicked(wxCommandEvent& event)
+{
+    if (m_task_id > 0) {
+        DownloadManager::getInstance().cancel_download(m_task_id);
+        m_task_id = 0;
+    }
+    EndModal(m_download_success ? wxID_OK : wxID_CANCEL);
+    event.Skip();
+}
+
+void GenericDownloadDialog::on_close(wxCloseEvent& event)
+{
+    if (m_task_id > 0) {
+        DownloadManager::getInstance().cancel_download(m_task_id);
+        m_task_id = 0;
+    }
+    event.Skip();
+}
+
+void GenericDownloadDialog::show_progress_page()
+{
+    m_simplebook_status->SetSelection(0);
+    m_status_bar->set_progress(0);
+    m_status_bar->show_cancel_button();
+}
+
+void GenericDownloadDialog::show_complete_page()
+{
+    m_simplebook_status->SetSelection(1);
+    m_status_bar->hide_cancel_button();
+}
+
+void GenericDownloadDialog::show_error_page(const std::string& error_msg)
+{
+    m_simplebook_status->SetSelection(2);
+    
+    // Display simple error message: filename + "Download failed"
+    wxString filename = wxString::FromUTF8(m_file_name.c_str());
+    wxString error_text = filename + " - Download failed";
+    
+    // Set error text in simple label
+    m_error_text->SetLabel(error_text);
+    m_error_text->Wrap(FromDIP(380));
+    
+    m_panel_error->Layout();
+    m_simplebook_status->Layout();
+    Layout();
+    Fit();
+    m_status_bar->hide_cancel_button();
+}
+
+void GenericDownloadDialog::update_progress(int percent, const wxString& status_text)
+{
+    m_status_bar->set_progress(percent);
+    if (!status_text.IsEmpty()) {
+        m_status_bar->set_status_text(status_text);
+    }
+}
+
+void GenericDownloadDialog::on_dpi_changed(const wxRect &suggested_rect)
+{
+    // Handle DPI changes if needed
+}
+
+}} // namespace Slic3r::GUI
+

src/slic3r/GUI/GenericDownloadDialog.hpp

@@ -0,0 +1,113 @@
+#ifndef slic3r_GenericDownloadDialog_hpp_
+#define slic3r_GenericDownloadDialog_hpp_
+
+#include <string>
+#include <functional>
+#include <memory>
+#include <atomic>
+
+#include "GUI_Utils.hpp"
+#include <wx/dialog.h>
+#include <wx/simplebook.h>
+#include "BBLStatusBar.hpp"
+#include "BBLStatusBarSend.hpp"
+#include "Jobs/Worker.hpp"
+#include "slic3r/GUI/DownloadManager.hpp"
+#include "Widgets/Button.hpp"
+
+class wxBoxSizer;
+class wxPanel;
+class wxStaticText;
+class wxHyperlinkCtrl;
+
+namespace Slic3r {
+namespace GUI {
+
+// Generic download dialog for custom download tasks with progress display
+class GenericDownloadDialog : public DPIDialog
+{
+public:
+    // Callback types
+    using DownloadCallback = std::function<void(size_t task_id, int percent, size_t downloaded, size_t total)>;
+    using CompleteCallback = std::function<void(size_t task_id, const std::string& file_path)>;
+    using ErrorCallback = std::function<void(size_t task_id, const std::string& error)>;
+    using RetryCallback = std::function<void()>;
+
+    GenericDownloadDialog(wxString title, 
+                         const std::string& file_url,
+                         const std::string& file_name,
+                         const std::string& dest_path = "",
+                         wxWindow* parent = nullptr);
+    ~GenericDownloadDialog();
+
+    // Start download
+    void start_download();
+    
+    // Set callbacks (optional)
+    void set_on_progress(DownloadCallback callback) { m_on_progress = callback; }
+    void set_on_complete(CompleteCallback callback) { m_on_complete = callback; }
+    void set_on_error(ErrorCallback callback) { m_on_error = callback; }
+    void set_on_retry(RetryCallback callback) { m_on_retry = callback; }
+
+    // Get download result
+    bool is_success() const { return m_download_success; }
+    std::string get_file_path() const { return m_file_path; }
+    std::string get_error_message() const { return m_error_message; }
+
+    // Show modal and return result
+    int ShowModal() override;
+
+protected:
+    void on_close(wxCloseEvent& event);
+    void on_dpi_changed(const wxRect &suggested_rect) override;
+    wxString format_text(wxStaticText* st, wxString str, int warp);
+
+    // Event handlers
+    void on_download_progress(size_t task_id, int percent, size_t downloaded, size_t total);
+    void on_download_complete(size_t task_id, const std::string& file_path);
+    void on_download_error(size_t task_id, const std::string& error);
+    void on_retry_clicked(wxCommandEvent& event);
+    void on_close_clicked(wxCommandEvent& event);
+
+private:
+    void setup_ui();
+    void show_progress_page();
+    void show_complete_page();
+    void show_error_page(const std::string& error_msg);
+    void update_progress(int percent, const wxString& status_text = "");
+
+    wxString m_title;
+    std::string m_file_url;
+    std::string m_file_name;
+    std::string m_dest_path;
+    size_t m_task_id{0};
+    bool m_download_success{false};
+    std::string m_file_path;
+    std::string m_error_message;
+
+    // Callbacks
+    DownloadCallback m_on_progress;
+    CompleteCallback m_on_complete;
+    ErrorCallback m_on_error;
+    RetryCallback m_on_retry;
+
+    // UI components
+    wxSimplebook* m_simplebook_status{nullptr};
+    std::shared_ptr<BBLStatusBarSend> m_status_bar;
+    wxPanel* m_panel_download{nullptr};
+    wxPanel* m_panel_complete{nullptr};
+    wxPanel* m_panel_error{nullptr};
+    
+    wxStaticText* m_complete_text{nullptr};
+    wxStaticText* m_error_text{nullptr};  
+    Button* m_retry_button{nullptr};
+    Button* m_close_button{nullptr};
+    Button* m_error_close_button{nullptr};  
+    
+    std::atomic<bool> m_is_destroying{false};
+};
+
+}} // namespace Slic3r::GUI
+
+#endif // slic3r_GenericDownloadDialog_hpp_
+