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mmsimagewidgetthread.cpp

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00001 /***************************************************************************
00002  *   Copyright (C) 2005-2007 Stefan Schwarzer, Jens Schneider,             *
00003  *                           Matthias Hardt, Guido Madaus                  *
00004  *                                                                         *
00005  *   Copyright (C) 2007-2008 BerLinux Solutions GbR                        *
00006  *                           Stefan Schwarzer & Guido Madaus               *
00007  *                                                                         *
00008  *   Copyright (C) 2009-2013 BerLinux Solutions GmbH                       *
00009  *                                                                         *
00010  *   Authors:                                                              *
00011  *      Stefan Schwarzer   <stefan.schwarzer@diskohq.org>,                 *
00012  *      Matthias Hardt     <matthias.hardt@diskohq.org>,                   *
00013  *      Jens Schneider     <jens.schneider@diskohq.org>,                   *
00014  *      Guido Madaus       <guido.madaus@diskohq.org>,                     *
00015  *      Patrick Helterhoff <patrick.helterhoff@diskohq.org>,               *
00016  *      René Bählkow       <rene.baehlkow@diskohq.org>                     *
00017  *                                                                         *
00018  *   This library is free software; you can redistribute it and/or         *
00019  *   modify it under the terms of the GNU Lesser General Public            *
00020  *   License version 2.1 as published by the Free Software Foundation.     *
00021  *                                                                         *
00022  *   This library is distributed in the hope that it will be useful,       *
00023  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
00024  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU     *
00025  *   Lesser General Public License for more details.                       *
00026  *                                                                         *
00027  *   You should have received a copy of the GNU Lesser General Public      *
00028  *   License along with this library; if not, write to the                 *
00029  *   Free Software Foundation, Inc.,                                       *
00030  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
00031  **************************************************************************/
00032 
00033 #include "mmsgui/mmsimagewidgetthread.h"
00034 
00035 MMSImageWidgetThread::MMSImageWidgetThread(MMSImageWidget *image) {
00036     this->image = image;
00037     this->inWait = false;
00038     this->stopThread = false;
00039     this->pauseThread = false;
00040 }
00041 
00042 void MMSImageWidgetThread::wait(unsigned int delaytime) {
00043     this->inWait = true;
00044     usleep(delaytime);
00045     while (this->pauseThread)
00046         usleep(1000);
00047     this->inWait = false;
00048 }
00049 
00050 void MMSImageWidgetThread::stop() {
00051     while (!this->inWait)
00052         usleep(1000);
00053     this->stopThread = true;
00054 }
00055 
00056 void MMSImageWidgetThread::pause(bool pauseThread) {
00057     if (pauseThread) {
00058         while (!this->inWait)
00059             usleep(1000);
00060         this->pauseThread = true;
00061     }
00062     else {
00063         this->pauseThread = false;
00064     }
00065 }
00066 
00067 void MMSImageWidgetThread::doIt() {
00068 
00069     /* init */
00070     this->inWait = false;
00071     this->stopThread = false;
00072     this->pauseThread = false;
00073 
00074     while (1) {
00075         /* first check if the window is shown */
00076         MMSWindow *win = this->image->getRootWindow();
00077         if (!win) {
00078             wait(1000000);
00079             if (this->stopThread)
00080                 return;
00081             else
00082                 continue;
00083         }
00084         if (!win->isShown()) {
00085             wait(1000000);
00086             if (this->stopThread)
00087                 return;
00088             else
00089                 continue;
00090         }
00091 
00092         /* get the next sleep time */
00093         unsigned int delaytime = 1000;
00094         bool changed = false;
00095 
00096         if (image->isActivated()) {
00097             if (image->isSelected()) {
00098                 if ((image->selimage)&&(image->selimage_suf)) {
00099                     if (image->selimage_suf[image->selimage_curr_index].delaytime > 0) {
00100                         /* save current index */
00101                         unsigned int index = image->selimage_curr_index;
00102 
00103                         /* wait of image */
00104                         int s = 10*1000;
00105                         while (image->selimage_suf[image->selimage_curr_index+1].delaytime == MMSIM_DESC_SUF_LOADING) {
00106                             wait(s);
00107                             if (this->stopThread)
00108                                 return;
00109                             if (s < 100*1000)
00110                                 s+= 10*1000;
00111                             if (!image->selimage_suf)
00112                                 /* image was deleted!!! */
00113                                 break;
00114                         }
00115 
00116                         if (image->selimage_suf) {
00117                             /* get next index */
00118                             if (image->selimage_suf[image->selimage_curr_index+1].delaytime == MMSIM_DESC_SUF_END)
00119                                 /* go back to the beginning */
00120                                 image->selimage_curr_index = 0;
00121                             else
00122                                 /* next image */
00123                                 image->selimage_curr_index++;
00124 
00125                             /* check if changed */
00126                             changed = (index != image->selimage_curr_index);
00127 
00128                             /* get the delaytime */
00129                             delaytime = image->selimage_suf[image->selimage_curr_index].delaytime;
00130                         }
00131                     }
00132                 }
00133             }
00134             else {
00135                 if ((image->image)&&(image->image_suf)) {
00136                     if (image->image_suf[image->image_curr_index].delaytime > 0) {
00137                         /* save current index */
00138                         unsigned int index = image->image_curr_index;
00139 
00140                         /* wait of image */
00141                         int s = 10*1000;
00142                         while (image->image_suf[image->image_curr_index+1].delaytime == MMSIM_DESC_SUF_LOADING) {
00143                             wait(s);
00144                             if (this->stopThread)
00145                                 return;
00146                             if (s < 100*1000)
00147                                 s+= 10*1000;
00148                             if (!image->image_suf)
00149                                 /* image was deleted!!! */
00150                                 break;
00151                         }
00152 
00153                         if (image->image_suf) {
00154                             /* get next index */
00155                             if (image->image_suf[image->image_curr_index+1].delaytime == MMSIM_DESC_SUF_END)
00156                                 /* go back to the beginning */
00157                                 image->image_curr_index = 0;
00158                             else
00159                                 /* next image */
00160                                 image->image_curr_index++;
00161 
00162                             /* check if changed */
00163                             changed = (index != image->image_curr_index);
00164 
00165                             /* get the delaytime */
00166                             delaytime = image->image_suf[image->image_curr_index].delaytime;
00167                         }
00168                     }
00169                 }
00170             }
00171         }
00172         else {
00173             if (image->isSelected()) {
00174                 if ((image->selimage_i)&&(image->selimage_i_suf)) {
00175                     if (image->selimage_i_suf[image->selimage_i_curr_index].delaytime > 0) {
00176                         /* save current index */
00177                         unsigned int index = image->selimage_i_curr_index;
00178 
00179                         /* wait of image */
00180                         int s = 10*1000;
00181                         while (image->selimage_i_suf[image->selimage_i_curr_index+1].delaytime == MMSIM_DESC_SUF_LOADING) {
00182                             wait(s);
00183                             if (this->stopThread)
00184                                 return;
00185                             if (s < 100*1000)
00186                                 s+= 10*1000;
00187                             if (!image->selimage_i_suf)
00188                                 /* image was deleted!!! */
00189                                 break;
00190                         }
00191 
00192                         if (image->selimage_i_suf) {
00193                             /* get next index */
00194                             if (image->selimage_i_suf[image->selimage_i_curr_index+1].delaytime == MMSIM_DESC_SUF_END)
00195                                 /* go back to the beginning */
00196                                 image->selimage_i_curr_index = 0;
00197                             else
00198                                 /* next image */
00199                                 image->selimage_i_curr_index++;
00200 
00201                             /* check if changed */
00202                             changed = (index != image->selimage_i_curr_index);
00203 
00204                             /* get the delaytime */
00205                             delaytime = image->selimage_i_suf[image->selimage_i_curr_index].delaytime;
00206                         }
00207                     }
00208                 }
00209             }
00210             else {
00211                 if ((image->image_i)&&(image->image_i_suf)) {
00212                     if (image->image_i_suf[image->image_i_curr_index].delaytime > 0) {
00213                         /* save current index */
00214                         unsigned int index = image->image_i_curr_index;
00215 
00216                         /* wait of image */
00217                         int s = 10*1000;
00218                         while (image->image_i_suf[image->image_i_curr_index+1].delaytime == MMSIM_DESC_SUF_LOADING) {
00219                             wait(s);
00220                             if (this->stopThread)
00221                                 return;
00222                             if (s < 100*1000)
00223                                 s+= 10*1000;
00224                             if (!image->image_i_suf)
00225                                 /* image was deleted!!! */
00226                                 break;
00227                         }
00228 
00229                         if (image->image_i_suf) {
00230                             /* get next index */
00231                             if (image->image_i_suf[image->image_i_curr_index+1].delaytime == MMSIM_DESC_SUF_END)
00232                                 /* go back to the beginning */
00233                                 image->image_i_curr_index = 0;
00234                             else
00235                                 /* next image */
00236                                 image->image_i_curr_index++;
00237 
00238                             /* check if changed */
00239                             changed = (index != image->image_i_curr_index);
00240 
00241                             /* get the delaytime */
00242                             delaytime = image->image_i_suf[image->image_i_curr_index].delaytime;
00243                         }
00244                     }
00245                 }
00246             }
00247         }
00248 
00249         // refresh the widget
00250         if (changed) {
00251             // refresh is required
00252             this->image->enableRefresh();
00253 
00254             this->image->refresh();
00255         }
00256 
00257         // sleep
00258         if (delaytime > 0)
00259             wait(delaytime*1000);
00260         else
00261             wait(1000000);
00262         if (this->stopThread)
00263             return;
00264     }
00265 }
00266 
00267 void MMSImageWidgetThread::threadMain() {
00268     doIt();
00269     delete this;
00270 }
00271 

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