Hydrogenaudio Forums > Some basic questions

Hydrogenaudio Forums > Hosted Forums > foobar2000 > Development - (fb2k)

sriram

Aug 23 2006, 10:57

I'm trying to develop a component, and I have some basic questions. I am more experienced with C rather than C++, and templates are rather new to me, so forgive me if I'm making some basic mistakes.

This is my code, adapted from the tutorial.

CODE

#include "../SDK/foobar2000.h"
#include "../helpers/helpers.h"

DECLARE_COMPONENT_VERSION("test","0.0.1","test\n")

class tester : public play_callback, public initquit
{
private:

	// Is this OK?
	service_ptr_t<titleformat_object> script;

public:

	virtual void on_init();
	virtual void on_quit();

	virtual void on_playback_new_track(metadb_handle_ptr p_track);
	virtual void on_playback_stop(play_control::t_stop_reason p_reason) {}
	virtual void on_playback_time(double p_time) {}
	virtual void on_playback_pause(bool p_state) {}
	virtual void on_playback_dynamic_info_track(const file_info & p_info) {}
	virtual void on_playback_starting(play_control::t_track_command p_command,bool p_paused) {}
	virtual void on_playback_seek(double p_time) {}
	virtual void on_playback_edited(metadb_handle_ptr p_track) {}
	virtual void on_playback_dynamic_info(const file_info & p_info) {}
	virtual void on_volume_change(float p_new_val) {}
};

void tester::on_init() {
	static_api_ptr_t<play_callback_manager>()->register_callback(this, flag_on_playback_new_track, true);

	static_api_ptr_t<titleformat_compiler>()->compile_safe(script,"%title%");

}

void tester::on_quit() {
	static_api_ptr_t<play_callback_manager>()->unregister_callback(this);
}

void tester::on_playback_new_track(metadb_handle_ptr p_track) {
	pfc::string8 out;
	p_track->format_title(NULL,out,script,NULL);
	console::print(out);
}

static initquit_factory_t< tester > g_test;

Is having this: "service_ptr_t<titleformat_object> script;" ok, since it is inside a static class?

Is there anything (else) wrong with the above code

foosion

Aug 23 2006, 11:03

You'll have to release the titleformat_object in the "script" member in your on_quit() handler.

sriram

Aug 23 2006, 13:32

thanks

another quick question.

I have created a uie::window using:

static uie::window_factory<uie_test> g_uie_test;

uie_test has two methods - on_init() and on_quit(). How do I call the on_init and on_quit methods from here:

CODE

static uie::window_factory<uie_test> g_uie_test;

class initquit_test : public initquit {
    virtual void on_init() {
               //?????????
    }

    virtual void on_quit() {
               //??????
    }
};

static initquit_factory_t< initquit_test > foo_initquit;

foosion

Aug 23 2006, 15:05

Try

CODE

g_uie_text.get_static_instance().on_init();

sriram

Aug 24 2006, 19:23

thanks. that works for a single instance window, but how would I do the same for a multiple instance window?

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