new file mode 100644
--- /dev/null
+++ b/window/event.cc
@@ -0,0 +1,570 @@
+/*
+ * Copyright (c) 2004-2006  Kazunori "jagarl" Ueno
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ */
+
+#include"SDL.h"
+#include"event.h"
+#include<vector>
+#include<list>
+#include<algorithm>
+#include<iostream>
+#include<sys/stat.h>
+
+using namespace std;
+
+extern bool save_req = false, load_req = false, grpdump_req = false; //  scn2k/scn2k_impl.cc: キーボードからセーブ・ロードできるように
+extern bool pressAreq=false,pressFreq=false,pressDreq=false;
+namespace Event {
+/* Impl: struct Event::Video */
+
+Video::Video(Container& container) : region(0, 0, 0, 0), z(0), parent(container) {
+	activated = false;
+	parent.Add(this);
+}
+Video::Video(Container& container, const Rect& init_rect) : region(init_rect), z(0), parent(container) {
+	activated = false;
+	parent.Add(this);
+}
+Video::Video(Container& container, const Rect& init_rect, int _z) : region(init_rect), z(_z), parent(container) {
+	activated = false;
+	parent.Add(this);
+}
+Video::~Video() {
+	parent.Delete(this);
+};
+void Video::SetRegion(const Rect& new_rect) {
+	region = new_rect;
+}
+void Video::SetZ(int new_z) {
+	z = new_z;
+}
+void Video::activate(void) {
+	activated = true;
+}
+void Video::deactivate(void) {
+	activated = false;
+}
+inline int Video::point_in(int x, int y) {
+	if (!activated) return -1;
+	if (region.point_in(x,y)) return z;
+	else return -1;
+}
+
+/* カーソルの動く順序：上、左の順に準位付け */
+bool operator <(const Video& pos1, const Video& pos2) {
+	if (pos1.region.ty < pos2.region.ty) return true;
+	if (pos1.region.ty == pos2.region.ty) return pos1.region.lx < pos2.region.lx;
+	if (pos1.region.by >= pos2.region.by) return pos1.region.lx <= pos2.region.lx;
+	return false;
+}
+
+
+/* Impl: struct Event::Time */
+Time::Time(Container& container) : wakeup_time(container.current_time), parent(container) {
+	parent.Add(this);
+}
+Time::~Time() {
+	parent.Delete(this);
+}
+/* Define: struct Event::ContainerImpl */
+
+struct ContainerImplTime_Item {
+	Time* instance;
+	bool valid;
+	bool operator ==(Time* const& to) const {
+		return to == instance;
+	}
+	ContainerImplTime_Item(Time* _time) :
+		instance(_time), valid(true) {
+	}
+};
+
+class ContainerImplTime : private vector<ContainerImplTime_Item> {
+public:
+	ContainerImplTime(void);
+	bool Exec(unsigned int current_time);
+	void Add(Time* new_event);
+	void Delete(Time* delete_event);
+private:
+	static vector<ContainerImplTime_Item> new_item;
+	unsigned int prev_execed_time;
+	static bool is_invalid(const_reference value) {
+		return !value.valid;
+	}
+};
+
+vector<ContainerImplTime_Item> ContainerImplTime::new_item;
+
+ContainerImplTime::ContainerImplTime(void) {
+	prev_execed_time = 0;
+}
+void ContainerImplTime::Add(Time* event) {
+	ContainerImplTime_Item item(event);
+	new_item.push_back(item);
+}
+void ContainerImplTime::Delete(Time* delete_event) {
+	iterator it = find(begin(), end(), delete_event);
+	if (it != end()) {
+		it->valid = false;
+		it->instance = 0;
+		return;
+	}
+	it = find(new_item.begin(), new_item.end(), delete_event);
+	if (it != end()) {
+		it->valid = false;
+		it->instance = 0;
+		return;
+	}
+	return;
+}
+bool ContainerImplTime::Exec(unsigned int current_time) {
+	if (current_time == Time::NEVER_WAKE) return true;
+	// 呼び出しまでに作製されたitemを追加 
+	insert(end(), new_item.begin(), new_item.end());
+	new_item.clear();
+	if (empty()) return true;
+	if (current_time == Time::FRAME_UPDATE) { // ビデオフレームの更新時
+		for (iterator it = begin(); it != end(); it++) {
+			if (! it->valid) continue;
+			
+			unsigned tm = it->instance->Wakeup();
+			if (tm == Time::FRAME_UPDATE) {
+				it->instance->Elapsed(prev_execed_time);
+			}
+		}
+	} else { // 時間変化時
+		if (current_time < prev_execed_time) prev_execed_time = 0; /* 時間が一回りして０に戻ったとき */
+		for (iterator it = begin(); it != end(); it++) {
+			if (! it->valid) continue;
+			unsigned tm = it->instance->Wakeup();
+			if (tm >= prev_execed_time && tm < current_time) {
+				it->instance->Elapsed(current_time);
+			}
+		}
+		prev_execed_time = current_time;
+	}
+	// 処理中に削除された item を実際に削除
+	erase(remove_if(begin(), end(), is_invalid), end());
+	return true;
+}
+
+
+class ContainerImplVideo : private vector<Video*> {
+public:
+	bool Exec(void);
+
+	ContainerImplVideo(void);
+	~ContainerImplVideo();
+	void Add(Video* item);
+	void Delete(Video* item);
+	void RegisterGlobalMotionFunc(Container::motionfunc, void* pointer);
+	void DeleteGlobalMotionFunc(Container::motionfunc, void* pointer);
+	void RegisterGlobalPressFunc(Container::motionfunc, void* pointer);
+	void DeleteGlobalPressFunc(Container::motionfunc, void* pointer);
+private:
+	struct Motionfunc {
+		Container::motionfunc func;
+		void* pointer;
+		bool operator ==(const Motionfunc& m) const { return func == m.func && pointer == m.pointer;}
+	};
+	list<Motionfunc> motion_vec;
+	list<Motionfunc> press_vec;
+	typedef list<Motionfunc>::iterator MotionIterator;
+	bool is_sorted;
+public:
+	int button_pressed;
+	int button_released;
+	int mouse_x, mouse_y;
+	int new_mouse_x, new_mouse_y;
+private:
+	void SetChanged(void);
+	static bool SortLess(const Video* pos1, const Video* pos2) {
+		return pos1 < pos2;
+	}
+	void Sort(void);
+	void Motion(int x, int y); // mouse motion
+	void Press(void);
+	void TakeScreenshot(void);
+	iterator cur_pos;
+	Video* cur_item; // 現在のフォーカス位置
+	int cur_pressed_x, cur_pressed_y;
+};
+
+void ContainerImplVideo::SetChanged(void) {
+	if (is_sorted) {
+		if (cur_item) {
+			cur_pos = find(begin(), end(), cur_item);
+			if (cur_pos == end()) cur_item = 0;
+		}
+		is_sorted = false;
+	}
+}
+
+void ContainerImplVideo::Sort(void) {
+	sort(begin(), end(), SortLess);
+	if (cur_item) {
+		cur_pos = lower_bound(begin(), end(), cur_item, SortLess);
+	} else {
+		cur_pos = end();
+	}
+	is_sorted = true;
+}
+
+ContainerImplVideo::ContainerImplVideo(void) {
+	is_sorted = false;
+	button_pressed = 0;
+	button_released = 0;
+	cur_item = 0;
+	mouse_x = 0; mouse_y = 0;
+	new_mouse_x = 0; new_mouse_y = 0;
+}
+ContainerImplVideo::~ContainerImplVideo(void) {
+};
+void ContainerImplVideo::Add(Video* event) {
+	push_back(event);
+	SetChanged();
+}
+void ContainerImplVideo::Delete(Video* delete_event) {
+	iterator it = find(begin(), end(), delete_event);
+	if (it != end()) {
+		erase(it);
+		SetChanged();
+	} else {
+		fprintf(stderr,"\nXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX\n");
+		fprintf(stderr,"X  ContainerImplVideo: Cannot delete node %x\n",delete_event);
+		fprintf(stderr,"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX\n\n");
+		fprintf(stderr,"vector from:\n");
+		for(it=begin(); it!=end(); it++) {
+			fprintf(stderr,"%x, ",*it);
+		}
+		fprintf(stderr,"\n");
+	}
+	if (delete_event == cur_item) {
+		cur_pos = end();
+		cur_item = 0;
+		Motion(mouse_x, mouse_y);
+	}
+	return;
+}
+void ContainerImplVideo::RegisterGlobalMotionFunc(Container::motionfunc func, void* pointer) {
+	Motionfunc f;
+	f.func = func;
+	f.pointer = pointer;
+	if (find(motion_vec.begin(), motion_vec.end(), f) == motion_vec.end()) {
+		motion_vec.push_back(f);
+	}
+}
+void ContainerImplVideo::DeleteGlobalMotionFunc(Container::motionfunc func, void* pointer) {
+	Motionfunc f;
+	f.func = func;
+	f.pointer = pointer;
+	list<Motionfunc>::iterator it = find(motion_vec.begin(), motion_vec.end(), f);
+	if (it != motion_vec.end())
+		motion_vec.erase(it);
+	return;
+}
+void ContainerImplVideo::RegisterGlobalPressFunc(Container::motionfunc func, void* pointer) {
+	Motionfunc f;
+	f.func = func;
+	f.pointer = pointer;
+	if (find(press_vec.begin(), press_vec.end(), f) == press_vec.end()) {
+		press_vec.push_back(f);
+	}
+}
+void ContainerImplVideo::DeleteGlobalPressFunc(Container::motionfunc func, void* pointer) {
+	Motionfunc f;
+	f.func = func;
+	f.pointer = pointer;
+	list<Motionfunc>::iterator it = find(press_vec.begin(), press_vec.end(), f);
+	if (it != press_vec.end())
+		press_vec.erase(it);
+	return;
+}
+void ContainerImplVideo::Motion(int x, int y) {
+	mouse_x = x; mouse_y = y;
+	MotionIterator mit;
+	for (mit=motion_vec.begin(); mit != motion_vec.end();) {
+		MotionIterator mit_next = mit;
+		mit_next++;
+		if (!(*mit->func)(x, y, mit->pointer)) motion_vec.erase(mit);
+		mit = mit_next;
+	
+	}
+	
+	/* @@@ ドラッグ処理とマウスを押す処理のバッティングで「二回ボタンを押さないと云々」関連のバグの可能性あり */
+	if (button_pressed & (1<<MOUSE_LEFT)) {
+		if (cur_item) cur_item->Drag(cur_pressed_x, cur_pressed_y, x, y);
+		return;
+	}
+	if (cur_item) cur_item->Motion(x,y);
+	int z = -1; iterator z_it;
+	iterator it;
+	for (it = begin(); it != end(); it++) {
+		int new_z = (*it)->point_in(x, y);
+		if (z < new_z) {
+			z = new_z;
+			z_it = it;
+		}
+	}
+	if (z != -1) {
+		if (cur_item == *z_it) return;
+		if (cur_item) cur_item->Out();
+		cur_pos = z_it;
+		cur_item = *z_it;
+		cur_item->In();
+		return;
+	} else {
+		if (cur_item) cur_item->Out();
+		cur_pos = end();
+		cur_item = 0;
+	}
+	return;
+}
+
+void ContainerImplVideo::Press(void) {
+	if (cur_item) {
+		cur_pressed_x = mouse_x;
+		cur_pressed_y = mouse_y;
+		cur_item->Press();
+		return;
+	}
+	MotionIterator mit;
+	for (mit=press_vec.begin(); mit != press_vec.end(); ) {
+		MotionIterator mit_next = mit;
+		mit_next++;
+		if (!(*mit->func)(mouse_x, mouse_y, mit->pointer)) {
+			press_vec.erase(mit);
+		}
+		mit = mit_next;
+	}
+}
+void ContainerImplVideo::TakeScreenshot(void) {
+	int n=0;
+	char filename[1024];
+	struct stat buffer;
+	for(n=0; n<9999; n++) {
+		// XXX: put screenshots in a seperate dir?
+		sprintf(filename, "xclannad_%04i.bmp", n);
+		if(stat(filename, &buffer) == -1) break;
+	}
+	SDL_SaveBMP(SDL_GetVideoSurface(), filename);
+}
+bool ContainerImplVideo::Exec(void) {
+
+	bool is_mouse_motion = false;
+	int motion_x = 0, motion_y = 0;
+	SDL_Event event;
+	SDL_PumpEvents();
+	while(SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_ALLEVENTS) == 1) {
+		switch(event.type) {
+		case SDL_QUIT: return false; // @@@ なにかやらないと
+		case SDL_ACTIVEEVENT: // なにもしない
+			// cout<<"active : gain "<<int(event.active.gain)<<", state "<<int(event.active.state)<<endl;
+			break;
+		case SDL_KEYDOWN:
+			if (!is_sorted) Sort();
+			switch(event.key.keysym.sym) {
+			case SDLK_F12:
+			case SDLK_PRINT:
+			case SDLK_p:  // for Zaurus
+				TakeScreenshot();
+				break;
+			// Some window managers (eg enlightenment) use Alt-Enter for
+			// themselves, F11 is a good alternative
+			case SDLK_F11:
+				SDL_WM_ToggleFullScreen(SDL_GetVideoSurface());
+				break;
+			case SDLK_RETURN:
+				if (SDL_GetModState() & KMOD_ALT) {
+					SDL_WM_ToggleFullScreen(SDL_GetVideoSurface());
+					break;
+				}
+			case SDLK_SPACE:
+				Press();
+				break;
+			case SDLK_TAB: // move to next widget
+				if (cur_pos != end())  cur_pos++;
+				if (cur_pos == end()) cur_pos = begin();
+				if (cur_pos != end())  {
+					cur_item = *cur_pos;
+					cur_item->In();
+				} else {
+					cur_item = 0;
+				}
+				break;
+			case SDLK_LEFT: if (cur_pos != end()) (*cur_pos)->KeyLeft(); break;
+			case SDLK_RIGHT:if (cur_pos != end()) (*cur_pos)->KeyRight(); break;
+			case SDLK_LSHIFT: case SDLK_RSHIFT: button_pressed |= (1<<KEY_SHIFT); break;
+			case SDLK_ESCAPE: button_pressed |= (1<<MOUSE_RIGHT); break; /* for Zaurus */
+			case SDLK_s: save_req = true; break;
+			case SDLK_l: load_req = true; break;
+			case SDLK_g: grpdump_req = true; break;
+			case SDLK_a: pressAreq = true; break;
+			case SDLK_d: pressDreq = true; break;
+			case SDLK_f: pressFreq = true; break;
+			}
+			break;
+		case SDL_KEYUP:
+			// cout << "keyup which "<<int(event.key.which)<<", sym "<<int(event.key.keysym.sym)<<endl;
+			switch(event.key.keysym.sym) {
+			case SDLK_RETURN: case SDLK_SPACE:
+				if (cur_item) cur_item->Release();
+			case SDLK_LSHIFT: case SDLK_RSHIFT: button_pressed &= ~(1<<KEY_SHIFT); button_released |= 1<<KEY_SHIFT; break;
+			case SDLK_ESCAPE: button_pressed &= ~(1<<MOUSE_RIGHT); button_released |= 1<<MOUSE_RIGHT; break; /* for Zaurus */
+			}
+			break;
+		case  SDL_MOUSEMOTION:
+			motion_x = event.motion.x;
+			motion_y = event.motion.y;
+			is_mouse_motion = true;
+			// Motion(event.motion.x, event.motion.y);
+			// cout<< "motion which "<<int(event.motion.which)<<
+			//	"x "<<event.motion.x << "y "<<event.motion.y<<endl;
+			break;
+		case SDL_MOUSEBUTTONUP:
+			if (event.button.button == 1) {
+				Motion(event.button.x, event.button.y);
+				is_mouse_motion = false;
+				if (cur_item) cur_item->Release();
+			}
+			switch(event.button.button) {
+			case 1: button_pressed &= ~(1<<MOUSE_LEFT); button_released |= 1<<MOUSE_LEFT; break;
+			case 2: button_pressed &= ~(1<<MOUSE_MIDDLE); button_released |= 1<<MOUSE_MIDDLE; break;
+			case 3: button_pressed &= ~(1<<MOUSE_RIGHT); button_released |= 1<<MOUSE_RIGHT; break;
+			case 4: button_pressed &= ~(1<<MOUSE_UP); button_released |= 1<<MOUSE_UP; break;
+			case 5: button_pressed &= ~(1<<MOUSE_DOWN); button_released |= 1<<MOUSE_DOWN; break;
+			}
+			break;
+		case SDL_MOUSEBUTTONDOWN:
+			if (event.button.button == 1) {
+				Motion(event.button.x, event.button.y);
+				is_mouse_motion = false;
+				Press();
+			}
+			switch(event.button.button) {
+			case 1: button_pressed |= (1<<MOUSE_LEFT); break;
+			case 2: button_pressed |= (1<<MOUSE_MIDDLE); break;
+			case 3: button_pressed |= (1<<MOUSE_RIGHT); break;
+			case 4: button_pressed |= (1<<MOUSE_UP); break;
+			case 5: button_pressed |= (1<<MOUSE_DOWN); break;
+			}
+			// cout << "mouse which "<<int(event.button.which)<<"button "<<int(event.button.button)<<
+			//	"state "<<int(event.button.state)<<"x "<<event.button.x << "y "<<event.button.y<<endl;
+			break;
+		case SDL_VIDEOEXPOSE: // redraw の必要がある？
+			// cout<<"expose."<<endl;
+			break;
+		}
+	}
+	// Motion 呼び出しは一回だけ
+	if (is_mouse_motion)
+		Motion(motion_x, motion_y);
+	return true;
+};
+/* Impl: struct Event::Container */
+Container::Container(void) {
+	pimpl_video = new ContainerImplVideo;
+	try {
+		pimpl_time = new ContainerImplTime;
+	} catch(...) {
+		delete pimpl_video;
+		throw;
+	}
+	button_pressed = 0;
+	current_time = 0;
+	int i; for (i=0; i<BUTTON_MAX; i++) button_presscount[i] = 0;
+	return;
+}
+Container::~Container(void) {
+	delete pimpl_video;
+	delete pimpl_time;
+}
+void Container::Add(Video* item) {
+	pimpl_video->Add(item);
+}
+void Container::Delete(Video* item) {
+	pimpl_video->Delete(item);
+}
+void Container::Add(Time* item) {
+	pimpl_time->Add(item);
+}
+void Container::Delete(Time* item) {
+	pimpl_time->Delete(item);
+}
+void Container::RegisterGlobalMotionFunc(Container::motionfunc f, void* pointer) {
+	pimpl_video->RegisterGlobalMotionFunc(f, pointer);
+}
+void Container::DeleteGlobalMotionFunc(Container::motionfunc f, void* pointer) {
+	pimpl_video->DeleteGlobalMotionFunc(f, pointer);
+}
+void Container::RegisterGlobalPressFunc(Container::motionfunc f, void* pointer) {
+	pimpl_video->RegisterGlobalPressFunc(f, pointer);
+}
+void Container::DeleteGlobalPressFunc(Container::motionfunc f, void* pointer) {
+	pimpl_video->DeleteGlobalPressFunc(f, pointer);
+}
+bool Container::Exec(unsigned int time) {
+	current_time = time;
+	bool ret = true;
+	ret = ret && pimpl_video->Exec();
+	ret = ret && pimpl_time->Exec(time);
+	int i; int mask = 1;
+	int new_button_pressed = pimpl_video->button_pressed;
+	for (i=0; i<BUTTON_MAX; i++) {
+		if (pimpl_video->button_released&mask) {
+			button_presscount[i]++;
+		}
+		mask <<= 1;
+	}
+	pimpl_video->button_released = 0;
+	button_pressed = pimpl_video->button_pressed;
+	return ret;
+}
+
+void Container::MousePos(int& x, int& y) {
+	x = pimpl_video->mouse_x;
+	y = pimpl_video->mouse_y;
+}
+
+bool Container::pressed(int mask) {
+	if (mask < 0 || mask >= BUTTON_MAX) return 0;
+	return (button_pressed & (1<<mask)) != 0;
+}
+bool Container::presscount(int mask) {
+	if (mask < 0 || mask >= BUTTON_MAX) return 0;
+	int count = button_presscount[mask];
+	button_presscount[mask] = 0;
+	return count;
+}
+
+}; /* end of namespace Container */
+
+// 問題：
+// z 軸と xy 軸の相互干渉；高速化
+// 移動するウィジット描画の高速化
+// キャッシュ
+// 文字列の一部のみ更新の高速化
+// 「階層 z で x なる領域無効化、y なる領域生成」で良い？＞Expose