Add a basic "log window", this will be more polished and useful later on for now it's just something quick and dirty.

There are a few issues to fix:
 * Delete the pointer in frame_main from the modless dialog.
 * Fix string storage in the logging class.
 * Close button doesn't work.

Originally committed to SVN as r4406.

aegisub/src/Makefile.am

@@ -233,6 +233,7 @@ aegisub_2_2_SOURCES = \
 	dialog_fonts_collector.cpp \
 	dialog_jumpto.cpp \
 	dialog_kara_timing_copy.cpp \
+	dialog_log.cpp \
 	dialog_paste_over.cpp \
 	dialog_progress.cpp \
 	dialog_properties.cpp \

aegisub/src/dialog_log.cpp

@@ -0,0 +1,121 @@
+// Copyright (c) 2010, Amar Takhar
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+//   * Redistributions of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//   * Redistributions in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//   * Neither the name of the Aegisub Group nor the names of its contributors
+//     may be used to endorse or promote products derived from this software
+//     without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+// Aegisub Project http://www.aegisub.org/
+//
+// $Id$
+
+/// @file dialog_log.cpp
+/// @brief Log window.
+/// @ingroup libaegisub
+///
+
+
+////////////
+// Includes
+#include "config.h"
+
+#ifndef AGI_PRE
+#include <wx/button.h>
+#include <wx/panel.h>
+#include <wx/sizer.h>
+#include <wx/statline.h>
+#include <wx/stattext.h>
+#endif
+
+#include <time.h>
+#include "dialog_log.h"
+
+/// @brief Constructor
+/// @param parent Parent frame.
+LogWindow::LogWindow(wxWindow *parent)
+: wxDialog (parent, -1, _("Log window"), wxDefaultPosition, wxSize(700,300), wxCAPTION | wxCLOSE_BOX | wxRESIZE_BORDER, _("Log window"))
+{
+	// Text sizer
+	wxSizer *sizer_text = new wxBoxSizer(wxVERTICAL);
+
+	wxTextCtrl *text_ctrl = new wxTextCtrl(this, wxID_ANY, wxEmptyString ,wxDefaultPosition, wxSize(700,300), wxTE_MULTILINE|wxTE_READONLY);
+	wxTextAttr attr;
+	attr.SetFont(wxFont(8, wxFONTFAMILY_TELETYPE, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL));
+	text_ctrl->SetDefaultStyle(attr);
+	sizer_text->Add(text_ctrl, 1, wxEXPAND);
+
+	wxSizer *sizer_button = new wxBoxSizer(wxHORIZONTAL);
+	sizer_button->Add(new wxButton(this, wxID_CLOSE), 0, wxALIGN_RIGHT | wxALL, 2);
+
+
+	wxSizer *sizer = new wxBoxSizer(wxVERTICAL);
+	sizer->Add(sizer_text, 1 ,wxEXPAND|wxALL, 0);
+	sizer->Add(sizer_button, 0 ,wxEXPAND|wxALL, 0);
+	sizer->SetSizeHints(this);
+	SetSizer(sizer);
+
+	emit_log = new EmitLog(text_ctrl);
+	emit_log->Enable();
+}
+
+
+/// @brief Destructor
+LogWindow::~LogWindow() {
+	emit_log->Disable();
+	delete emit_log;
+}
+
+LogWindow::EmitLog::EmitLog(wxTextCtrl *t): text_ctrl(t) {
+	const agi::log::Sink *sink = agi::log::log->GetSink();
+
+	for (unsigned int i=0; i < sink->size(); i++) {
+		Write((*sink)[i]);
+	}
+	delete sink;
+}
+
+
+
+void LogWindow::EmitLog::Write(agi::log::SinkMessage *sm) {
+	tm tmtime;
+	localtime_r(&sm->tv.tv_sec, &tmtime);
+	wxString log = wxString::Format("%c %02d:%02d:%02d %ld <%-25s> [%s:%s:%d]  %s\n",
+		agi::log::Severity_ID[sm->severity],
+		tmtime.tm_hour,
+		tmtime.tm_min,
+		tmtime.tm_sec,
+		sm->tv.tv_usec,
+		sm->section,
+		sm->file,
+		sm->func,
+		sm->line,
+		strndup(sm->message, sm->len));
+
+	text_ctrl->AppendText(log);
+}
+
+void LogWindow::EmitLog::log(agi::log::SinkMessage *sm) {
+	Write(sm);
+}
+
+

aegisub/src/dialog_log.h

@@ -0,0 +1,71 @@
+// Copyright (c) 2010, Amar Takhar
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+//   * Redistributions of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//   * Redistributions in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//   * Neither the name of the Aegisub Group nor the names of its contributors
+//     may be used to endorse or promote products derived from this software
+//     without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+// Aegisub Project http://www.aegisub.org/
+//
+// $Id$
+
+/// @file dialog_log.h
+/// @see dialog_log.cpp
+/// @ingroup libaegisub
+///
+
+
+
+
+////////////
+// Includes
+#ifndef AGI_PRE
+#include <wx/dialog.h>
+#include <wx/textctrl.h>
+#endif
+
+#include <libaegisub/log.h>
+
+/// @class AboutScreen
+/// @brief About dialogue.
+
+class LogWindow: public wxDialog {
+public:
+
+	class EmitLog: public agi::log::Emitter {
+		wxTextCtrl *text_ctrl;
+		void Write(agi::log::SinkMessage *sm);
+	public:
+		EmitLog(wxTextCtrl *t);
+		void Prime();
+		void Set(wxTextCtrl *text_ctrl_p) { text_ctrl = text_ctrl_p; }
+    	void log(agi::log::SinkMessage *sm);
+	};
+
+
+	LogWindow(wxWindow *parent);
+	~LogWindow();
+private:
+    EmitLog *emit_log;
+};
+

aegisub/src/frame_main.cpp

@@ -570,6 +570,7 @@ void FrameMain::InitMenu() {
 #endif
 	AppendBitmapMenuItem(helpMenu,Menu_Help_Check_Updates, _("&Check for Updates..."), _("Check to see if there is a new version of Aegisub available"),GETIMAGE(blank_button_16));
 	AppendBitmapMenuItem(helpMenu,Menu_Help_About, _("&About..."), _("About Aegisub"),GETIMAGE(about_menu_16));
+	AppendBitmapMenuItem(helpMenu,Menu_Help_Log, _("&Log window..."), _("Aegisub event log"),GETIMAGE(about_menu_16));
 	MenuBar->Append(helpMenu, _("&Help"));
 
 	// Set the bar as this frame's

aegisub/src/frame_main.h

@@ -203,6 +203,7 @@ private:
 	void OnMenuOpen (wxMenuEvent &event);
 	void OnExit(wxCommandEvent &WXUNUSED(event));
 	void OnAbout (wxCommandEvent &event);
+	void OnLog (wxCommandEvent &event);
 	void OnCheckUpdates (wxCommandEvent &event);
 	void OnContents (wxCommandEvent &event);
 	void OnFiles (wxCommandEvent &event);
@@ -686,6 +687,7 @@ enum {
 	/// DOCME
 	Menu_Help_About,
 
+	Menu_Help_Log,
 
 	/// DOCME
 	Menu_Subs_Snap_Start_To_Video,

aegisub/src/frame_main_events.cpp

@@ -66,6 +66,7 @@
 #include "dialog_fonts_collector.h"
 #include "dialog_jumpto.h"
 #include "dialog_kara_timing_copy.h"
+#include "dialog_log.h"
 #include "dialog_progress.h"
 #include "dialog_properties.h"
 #include "dialog_resample.h"
@@ -212,6 +213,7 @@ BEGIN_EVENT_TABLE(FrameMain, wxFrame)
 	EVT_MENU(Menu_Help_IRCChannel, FrameMain::OnIRCChannel)
 	EVT_MENU(Menu_Help_Check_Updates, FrameMain::OnCheckUpdates)
 	EVT_MENU(Menu_Help_About, FrameMain::OnAbout)
+	EVT_MENU(Menu_Help_Log, FrameMain::OnLog)
 
 	EVT_MENU(Menu_View_Language, FrameMain::OnChooseLanguage)
 	EVT_MENU(Menu_View_Standard, FrameMain::OnViewStandard)
@@ -612,6 +614,13 @@ void FrameMain::OnAbout(wxCommandEvent &event) {
 }
 
 
+/// @brief Open log window
+/// @param event 
+void FrameMain::OnLog(wxCommandEvent &event) {
+	LogWindow *log = new LogWindow(this);
+	log->Show(1);
+}
+
 
 /// @brief Open check updates
 /// @param event