Method SetProgress

src/dialog_progress.cpp:89–95

	}

	void SetProgress(int64_t cur, int64_t max) override {
		int new_progress = mid<int>(0, double(cur) / max * 300, 300);
		if (new_progress != progress) {
			progress = new_progress;
			Main().Async([=, this]{ dialog->SetProgress(new_progress); });
		}
	}

	void Log(std::string const& str) override {
		Main().Async([=, this]{ dialog->pending_log += to_wx(str); });