83 lines
3.2 KiB
C++
83 lines
3.2 KiB
C++
#ifndef slic3r_GUI_BackgroundSlicingProcess_hpp_
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#define slic3r_GUI_BackgroundSlicingProcess_hpp_
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#include <string>
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#include <condition_variable>
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#include <mutex>
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#include <thread>
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namespace Slic3r {
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class DynamicPrintConfig;
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class GCodePreviewData;
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class Print;
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// Support for the GUI background processing (Slicing and G-code generation).
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// As of now this class is not declared in Slic3r::GUI due to the Perl bindings limits.
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class BackgroundSlicingProcess
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{
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public:
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BackgroundSlicingProcess() {}
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~BackgroundSlicingProcess() { this->stop(); this->join_background_thread(); }
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void set_print(Print *print) { m_print = print; }
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void set_gcode_preview_data(GCodePreviewData *gpd) { m_gcode_preview_data = gpd; }
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void set_sliced_event(int event_id) { m_event_sliced_id = event_id; }
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void set_finished_event(int event_id) { m_event_finished_id = event_id; }
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// Start the background processing. Returns false if the background processing was already running.
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bool start();
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// Cancel the background processing. Returns false if the background processing was not running.
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// A stopped background processing may be restarted with start().
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bool stop();
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// Apply config over the print. Returns false, if the new config values caused any of the already
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// processed steps to be invalidated, therefore the task will need to be restarted.
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bool apply_config(DynamicPrintConfig *config);
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enum State {
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// m_thread is not running yet, or it did not reach the STATE_IDLE yet (it does not wait on the condition yet).
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STATE_INITIAL = 0,
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// m_thread is waiting for the task to execute.
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STATE_IDLE,
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STATE_STARTED,
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// m_thread is executing a task.
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STATE_RUNNING,
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// m_thread finished executing a task, and it is waiting until the UI thread picks up the results.
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STATE_FINISHED,
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// m_thread finished executing a task, the task has been canceled by the UI thread, therefore the UI thread will not be notified.
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STATE_CANCELED,
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// m_thread exited the loop and it is going to finish. The UI thread should join on m_thread.
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STATE_EXIT,
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STATE_EXITED,
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};
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State state() const { return m_state; }
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bool idle() const { return m_state == STATE_IDLE; }
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bool running() const { return m_state == STATE_STARTED || m_state == STATE_RUNNING || m_state == STATE_FINISHED || m_state == STATE_CANCELED; }
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private:
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void thread_proc();
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void start_background_thread();
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void join_background_thread();
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Print *m_print = nullptr;
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GCodePreviewData *m_gcode_preview_data = nullptr;
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std::string m_output_path;
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// Thread, on which the background processing is executed. The thread will always be present
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// and ready to execute the slicing process.
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std::thread m_thread;
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// Mutex and condition variable to synchronize m_thread with the UI thread.
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std::mutex m_mutex;
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std::condition_variable m_condition;
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State m_state = STATE_INITIAL;
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// wxWidgets command ID to be sent to the platter to inform that the slicing is finished, and the G-code export will continue.
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int m_event_sliced_id = 0;
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// wxWidgets command ID to be sent to the platter to inform that the task finished.
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int m_event_finished_id = 0;
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};
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}; // namespace Slic3r
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#endif /* slic3r_GUI_BackgroundSlicingProcess_hpp_ */
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