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1 /*
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2 * Copyright (c) 2004-2006 Kazunori "jagarl" Ueno
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3 * All rights reserved.
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4 *
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5 * Redistribution and use in source and binary forms, with or without
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6 * modification, are permitted provided that the following conditions
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7 * are met:
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8 * 1. Redistributions of source code must retain the above copyright
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9 * notice, this list of conditions and the following disclaimer.
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10 * 2. Redistributions in binary form must reproduce the above copyright
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11 * notice, this list of conditions and the following disclaimer in the
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12 * documentation and/or other materials provided with the distribution.
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13 * 3. The name of the author may not be used to endorse or promote products
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14 * derived from this software without specific prior written permission.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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26 */
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27
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28 #include<SDL.h>
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29 #include"system.h"
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30 #include<iostream>
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31 #include<stdio.h>
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32
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33 using namespace std;
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34
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35 // void SDL_SetEventFilter(SDL_EventFilter filter);
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36 // typedef int (*SDL_EventFilter)(const SDL_Event *event);
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37 namespace System {
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38
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39 Main* Main::instance = 0;
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40
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41 int Main::event_filter(const SDL_Event* event) {
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42 return 1; /* throw all event */
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43 }
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44
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45 Main::Main(void) {
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46 instance = this;
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47 framerate = 20;
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48 cursor = 0;
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49 }
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50 Main::~Main() {
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51 if (cursor) delete cursor;
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52 }
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53 void Main::Quit(void) {
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54 is_exit = true;
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55 }
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56 void Main::EnableVideo(void) {
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57 is_video_update = true;
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58 }
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59 void Main::DisableVideo(void) {
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60 is_video_update = false;
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61 }
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62 bool Main::is_exit = false;
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63 bool Main::is_video_update = true;
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64
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65 void Main::Mainloop(void) {
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66 SDL_SetEventFilter(&event_filter);
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67 Uint32 old_time = 0;
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68 while(!is_exit) {
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69 Uint32 start_time = SDL_GetTicks();
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70 if (! event.Exec(start_time)) break;
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71 if (start_time - old_time > 1000/framerate) {
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72 if (is_video_update) root.ExecUpdate();
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73 event.Exec(Event::Time::FRAME_UPDATE);
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74 cout.flush();
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75 old_time = start_time;
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76 }
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77
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78 // 問題：
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79 // z 軸と xy 軸の相互干渉；高速化
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80 // 移動するウィジット描画の高速化
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81 // キャッシュ
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82 // 文字列の一部のみ更新の高速化
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83 // 「階層 z で x なる領域無効化、y なる領域生成」で良い？＞Expose
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84 /*
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85 Uint32 end_time = SDL_GetTicks();
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86 Uint32 delay = (end_time-start_time);
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87 if(delay < 1000/framerate) SDL_Delay(1000/framerate - delay);
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88 else SDL_Delay(0);
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89 */
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90 SDL_Delay(0);
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91 };
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92 }
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93
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94 void Main::SetCursor(Surface* s, const Rect& r) {
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95 if (instance == 0) return;
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96 if (instance->cursor) delete instance->cursor;
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97 if (s == 0) { // カーソル消去
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98 instance->cursor = 0;
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99 } else if (s == DEFAULT_MOUSECURSOR) {
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100 instance->cursor = 0;
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101 SDL_ShowCursor(SDL_ENABLE);
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102 } else {
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103 instance->cursor = new WidMouseCursor(instance->event, instance->root.root, s, r.lx, r.ty, r.width(), r.height());
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104 instance->cursor->show();
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105 SDL_ShowCursor(SDL_DISABLE);
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106 }
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107 }
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108 }
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