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-rw-r--r--krozat/krozat/krozat.cpp845
1 files changed, 845 insertions, 0 deletions
diff --git a/krozat/krozat/krozat.cpp b/krozat/krozat/krozat.cpp
new file mode 100644
index 0000000..3df5b5b
--- /dev/null
+++ b/krozat/krozat/krozat.cpp
@@ -0,0 +1,845 @@
+/* Slide Show Screen Saver
+ * (C) 1999 Stefan Taferner <taferner@kde.org>
+ *
+ * This code is under GPL
+ *
+ * 2001/03/04 Converted to libkscreensaver by Martin R. Jones.
+ * Adapted by Laurent Montel <lmontel@mandrakesoft.com>
+ * For MandrakeSoft
+ */
+
+
+#include <qdir.h>
+#include <qpushbutton.h>
+#include <qcolor.h>
+#include <qlabel.h>
+#include <qlayout.h>
+#include <qfile.h>
+#include <qcolor.h>
+#include <qpaintdevicemetrics.h>
+#include <qcheckbox.h>
+#include <qcombobox.h>
+#include <qslider.h>
+
+#include <kconfig.h>
+#include <kglobal.h>
+#include <kapp.h>
+#include <klocale.h>
+#include <kbuttonbox.h>
+#include <kmessagebox.h>
+#include <kimageio.h>
+#include <kfiledialog.h>
+#include <kstddirs.h>
+
+#include <stdlib.h>
+#include <assert.h>
+#include <math.h>
+#include <time.h>
+
+#include "krozat.h"
+#include "krozat.moc"
+
+// libkscreensaver interface
+extern "C"
+{
+ const char *kss_applicationName = "mandrake.kss";
+ const char *kss_description = I18N_NOOP( "KMandrakeSlideShow :)" );
+ const char *kss_version = "2.2.0";
+
+ KScreenSaver *kss_create( WId id )
+ {
+ return new krozatSaver( id );
+ }
+
+ QDialog *kss_setup()
+ {
+ return new krozatSetup();
+ }
+}
+
+
+//=============================================================================
+// Class krozatSaver
+//=============================================================================
+krozatSaver::krozatSaver( WId id ): KScreenSaver(id)
+{
+ time_t t;
+
+ time(&t);
+ srand((unsigned int)t);
+
+ KImageIO::registerFormats();
+
+ blank();
+
+ mEffect = NULL;
+ mNumEffects = 0;
+ mIntArray = NULL;
+ registerEffects();
+
+ readConfig();
+ initNextScreen();
+
+ mFileIdx = 0;
+ mColorContext = QColor::enterAllocContext();
+
+ mEffectRunning = false;
+ loadNextImage();
+ createNextScreen();
+
+ mTimer.start(10, true);
+ //init background color
+ setBackgroundColor(QColor("#21449C"));
+
+ connect(&mTimer, SIGNAL(timeout()), SLOT(slotTimeout()));
+}
+
+
+//----------------------------------------------------------------------------
+krozatSaver::~krozatSaver()
+{
+ mTimer.stop();
+ if (mPainter.isActive()) mPainter.end();
+ QColor::leaveAllocContext();
+ QColor::destroyAllocContext(mColorContext);
+}
+
+
+//-----------------------------------------------------------------------------
+void krozatSaver::initNextScreen()
+{
+ QPaintDeviceMetrics metric(this);
+ int w, h;
+
+ w = width();
+ h = height();
+ mNextScreen = QPixmap(w, h, metric.depth());
+}
+
+
+//-----------------------------------------------------------------------------
+void krozatSaver::readConfig()
+{
+ //Change this directory
+ mDirectory="/usr/share/apps/krozat/pics/";
+ mDelay = 5000; //in milli-second
+
+ loadDirectory();
+}
+
+
+//----------------------------------------------------------------------------
+void krozatSaver::registerEffects()
+{
+ int i = 0;
+
+ mEffectList = new EffectMethod[64];
+ mEffectList[i++] = &krozatSaver::effectChessboard;
+ mEffectList[i++] = &krozatSaver::effectMultiCircleOut;
+ mEffectList[i++] = &krozatSaver::effectSpiralIn;
+ mEffectList[i++] = &krozatSaver::effectSweep;
+ mEffectList[i++] = &krozatSaver::effectMeltdown;
+ mEffectList[i++] = &krozatSaver::effectCircleOut;
+ mEffectList[i++] = &krozatSaver::effectBlobs;
+ mEffectList[i++] = &krozatSaver::effectHorizLines;
+ mEffectList[i++] = &krozatSaver::effectVertLines;
+ mEffectList[i++] = &krozatSaver::effectRandom;
+ mEffectList[i++] = &krozatSaver::effectGrowing;
+ mEffectList[i++] = &krozatSaver::effectIncomingEdges;
+
+ mNumEffects = i;
+ // mNumEffects = 1; //...for testing
+}
+
+
+//----------------------------------------------------------------------------
+int krozatSaver::effectMultiCircleOut(bool aInit)
+{
+ int x, y, i;
+ double alpha;
+ static QPointArray pa(4);
+
+ if (aInit)
+ {
+ startPainter();
+ mw = width();
+ mh = height();
+ mx = mw;
+ my = mh>>1;
+ pa.setPoint(0, mw>>1, mh>>1);
+ pa.setPoint(3, mw>>1, mh>>1);
+ mfy = sqrt((double)mw*mw + mh*mh) / 2;
+ mi = rand()%15 + 2;
+ mfd = M_PI*2/mi;
+ mAlpha = mfd;
+ mwait = 10 * mi;
+ mfx = M_PI/32; // divisor must be powers of 8
+ }
+
+ if (mAlpha < 0)
+ {
+ mPainter.end();
+ showNextScreen();
+ return -1;
+ }
+
+ for (alpha=mAlpha, i=mi; i>=0; i--, alpha+=mfd)
+ {
+ x = (mw>>1) + (int)(mfy * cos(-alpha));
+ y = (mh>>1) + (int)(mfy * sin(-alpha));
+
+ mx = (mw>>1) + (int)(mfy * cos(-alpha + mfx));
+ my = (mh>>1) + (int)(mfy * sin(-alpha + mfx));
+
+ pa.setPoint(1, x, y);
+ pa.setPoint(2, mx, my);
+
+ mPainter.drawPolygon(pa);
+ }
+ mAlpha -= mfx;
+
+ return mwait;
+}
+
+
+//----------------------------------------------------------------------------
+int krozatSaver::effectSpiralIn(bool aInit)
+{
+ if (aInit)
+ {
+ startPainter();
+ mw = width();
+ mh = height();
+ mix = mw / 8;
+ miy = mh / 8;
+ mx0 = 0;
+ mx1 = mw - mix;
+ my0 = miy;
+ my1 = mh - miy;
+ mdx = mix;
+ mdy = 0;
+ mi = 0;
+ mj = 16 * 16;
+ mx = 0;
+ my = 0;
+ }
+
+ if (mi==0 && mx0>=mx1)
+ {
+ mPainter.end();
+ showNextScreen();
+ return -1;
+ }
+
+ if (mi==0 && mx>=mx1) // switch to: down on right side
+ {
+ mi = 1;
+ mdx = 0;
+ mdy = miy;
+ mx1 -= mix;
+ }
+ else if (mi==1 && my>=my1) // switch to: right to left on bottom side
+ {
+ mi = 2;
+ mdx = -mix;
+ mdy = 0;
+ my1 -= miy;
+ }
+ else if (mi==2 && mx<=mx0) // switch to: up on left side
+ {
+ mi = 3;
+ mdx = 0;
+ mdy = -miy;
+ mx0 += mix;
+ }
+ else if (mi==3 && my<=my0) // switch to: left to right on top side
+ {
+ mi = 0;
+ mdx = mix;
+ mdy = 0;
+ my0 += miy;
+ }
+
+ bitBlt(this, mx, my, &mNextScreen, mx, my, mix, miy, CopyROP, true);
+
+ mx += mdx;
+ my += mdy;
+ mj--;
+
+ return 8;
+}
+
+
+//----------------------------------------------------------------------------
+int krozatSaver::effectMeltdown(bool aInit)
+{
+ int i, x, y;
+ bool done;
+
+ if (aInit)
+ {
+ if (mIntArray) delete mIntArray;
+ mw = width();
+ mh = height();
+ mdx = 4;
+ mdy = 16;
+ mix = mw / mdx;
+ mIntArray = new int[mix];
+ for (i=mix-1; i>=0; i--)
+ mIntArray[i] = 0;
+ }
+
+ done = true;
+ for (i=0,x=0; i<mix; i++,x+=mdx)
+ {
+ y = mIntArray[i];
+ if (y >= mh) continue;
+ done = false;
+ if ((rand()&15) < 6) continue;
+ bitBlt(this, x, y+mdy, this, x, y, mdx, mh-y-mdy, CopyROP, true);
+ bitBlt(this, x, y, &mNextScreen, x, y, mdx, mdy, CopyROP, true);
+ mIntArray[i] += mdy;
+ }
+
+ if (done)
+ {
+ delete mIntArray;
+ mIntArray = NULL;
+ return -1;
+ }
+
+ return 15;
+}
+
+
+//----------------------------------------------------------------------------
+int krozatSaver::effectCircleOut(bool aInit)
+{
+ int x, y;
+ static QPointArray pa(4);
+
+ if (aInit)
+ {
+ startPainter();
+ mw = width();
+ mh = height();
+ mx = mw;
+ my = mh>>1;
+ mAlpha = 2*M_PI;
+ pa.setPoint(0, mw>>1, mh>>1);
+ pa.setPoint(3, mw>>1, mh>>1);
+ mfx = M_PI/16; // divisor must be powers of 8
+ mfy = sqrt((double)mw*mw + mh*mh) / 2;
+ }
+
+ if (mAlpha < 0)
+ {
+ mPainter.end();
+ showNextScreen();
+ return -1;
+ }
+
+ x = mx;
+ y = my;
+ mx = (mw>>1) + (int)(mfy * cos(mAlpha));
+ my = (mh>>1) + (int)(mfy * sin(mAlpha));
+ mAlpha -= mfx;
+
+ pa.setPoint(1, x, y);
+ pa.setPoint(2, mx, my);
+
+ mPainter.drawPolygon(pa);
+
+ return 20;
+}
+
+
+//----------------------------------------------------------------------------
+int krozatSaver::effectSweep(bool aInit)
+{
+ int w, h, x, y, i;
+
+ if (aInit)
+ {
+ // subtype: 0=sweep right to left, 1=sweep left to right
+ // 2=sweep bottom to top, 3=sweep top to bottom
+ mSubType = rand() % 4;
+ mw = width();
+ mh = height();
+ mdx = (mSubType==1 ? 16 : -16);
+ mdy = (mSubType==3 ? 16 : -16);
+ mx = (mSubType==1 ? 0 : mw);
+ my = (mSubType==3 ? 0 : mh);
+ }
+
+ if (mSubType==0 || mSubType==1)
+ {
+ // horizontal sweep
+ if ((mSubType==0 && mx < -64) ||
+ (mSubType==1 && mx > mw+64))
+ {
+ return -1;
+ }
+ for (w=2,i=4,x=mx; i>0; i--, w<<=1, x-=mdx)
+ {
+ bitBlt(this, x, 0, &mNextScreen, x, 0, w, mh, CopyROP, true);
+ }
+ mx += mdx;
+ }
+ else
+ {
+ // vertical sweep
+ if ((mSubType==2 && my < -64) ||
+ (mSubType==3 && my > mh+64))
+ {
+ return -1;
+ }
+ for (h=2,i=4,y=my; i>0; i--, h<<=1, y-=mdy)
+ {
+ bitBlt(this, 0, y, &mNextScreen, 0, y, mw, h, CopyROP, true);
+ }
+ my += mdy;
+ }
+
+ return 20;
+}
+
+
+//----------------------------------------------------------------------------
+int krozatSaver::effectBlobs(bool aInit)
+{
+ int r;
+
+ if (aInit)
+ {
+ startPainter();
+ mAlpha = M_PI * 2;
+ mw = width();
+ mh = height();
+ mi = 150;
+ }
+
+ if (mi <= 0)
+ {
+ mPainter.end();
+ showNextScreen();
+ return -1;
+ }
+
+ mx = rand() % mw;
+ my = rand() % mh;
+ r = (rand() % 200) + 50;
+
+ mPainter.drawEllipse(mx-r, my-r, r, r);
+ mi--;
+
+ return 10;
+}
+
+
+//----------------------------------------------------------------------------
+int krozatSaver::effectRandom(bool /*aInit*/)
+{
+ int x, y, i, w, h, fact, sz;
+
+ fact = (rand() % 3) + 1;
+
+ w = width() >> fact;
+ h = height() >> fact;
+ sz = 1 << fact;
+
+ for (i = (w*h)<<1; i > 0; i--)
+ {
+ x = (rand() % w) << fact;
+ y = (rand() % h) << fact;
+ bitBlt(this, x, y, &mNextScreen, x, y, sz, sz, CopyROP, true);
+ }
+ showNextScreen();
+
+ return -1;
+}
+
+
+//----------------------------------------------------------------------------
+int krozatSaver::effectGrowing(bool aInit)
+{
+ if (aInit)
+ {
+ mw = width();
+ mh = height();
+ mx = mw >> 1;
+ my = mh >> 1;
+ mi = 0;
+ mfx = mx / 100.0;
+ mfy = my / 100.0;
+ }
+
+ mx = (mw>>1) - (int)(mi * mfx);
+ my = (mh>>1) - (int)(mi * mfy);
+ mi++;
+
+ if (mx<0 || my<0)
+ {
+ showNextScreen();
+ return -1;
+ }
+
+ bitBlt(this, mx, my, &mNextScreen, mx, my,
+ mw - (mx<<1), mh - (my<<1), CopyROP, true);
+
+ return 20;
+}
+
+
+//----------------------------------------------------------------------------
+int krozatSaver::effectChessboard(bool aInit)
+{
+ int y;
+
+ if (aInit)
+ {
+ mw = width();
+ mh = height();
+ mdx = 8; // width of one tile
+ mdy = 8; // height of one tile
+ mj = (mw+mdx-1)/mdx; // number of tiles
+ mx = mj*mdx; // shrinking x-offset from screen border
+ mix = 0; // growing x-offset from screen border
+ miy = 0; // 0 or mdy for growing tiling effect
+ my = mj&1 ? 0 : mdy; // 0 or mdy for shrinking tiling effect
+ mwait = 800 / mj; // timeout between effects
+ }
+
+ if (mix >= mw)
+ {
+ showNextScreen();
+ return -1;
+ }
+
+ mix += mdx;
+ mx -= mdx;
+ miy = miy ? 0 : mdy;
+ my = my ? 0 : mdy;
+
+ for (y=0; y<mw; y+=(mdy<<1))
+ {
+ bitBlt(this, mix, y+miy, &mNextScreen, mix, y+miy,
+ mdx, mdy, CopyROP, true);
+ bitBlt(this, mx, y+my, &mNextScreen, mx, y+my,
+ mdx, mdy, CopyROP, true);
+ }
+
+ return mwait;
+}
+
+
+//----------------------------------------------------------------------------
+int krozatSaver::effectIncomingEdges(bool aInit)
+{
+ int x1, y1;
+
+ if (aInit)
+ {
+ mw = width();
+ mh = height();
+ mix = mw >> 1;
+ miy = mh >> 1;
+ mfx = mix / 100.0;
+ mfy = miy / 100.0;
+ mi = 0;
+ mSubType = rand() & 1;
+ }
+
+ mx = (int)(mfx * mi);
+ my = (int)(mfy * mi);
+
+ if (mx>mix || my>miy)
+ {
+ showNextScreen();
+ return -1;
+ }
+
+ x1 = mw - mx;
+ y1 = mh - my;
+ mi++;
+
+ if (mSubType)
+ {
+ // moving image edges
+ bitBlt(this, 0, 0, &mNextScreen, mix-mx, miy-my, mx, my, CopyROP, true);
+ bitBlt(this, x1, 0, &mNextScreen, mix, miy-my, mx, my, CopyROP, true);
+ bitBlt(this, 0, y1, &mNextScreen, mix-mx, miy, mx, my, CopyROP, true);
+ bitBlt(this, x1, y1, &mNextScreen, mix, miy, mx, my, CopyROP, true);
+ }
+ else
+ {
+ // fixed image edges
+ bitBlt(this, 0, 0, &mNextScreen, 0, 0, mx, my, CopyROP, true);
+ bitBlt(this, x1, 0, &mNextScreen, x1, 0, mx, my, CopyROP, true);
+ bitBlt(this, 0, y1, &mNextScreen, 0, y1, mx, my, CopyROP, true);
+ bitBlt(this, x1, y1, &mNextScreen, x1, y1, mx, my, CopyROP, true);
+ }
+ return 20;
+}
+
+
+//----------------------------------------------------------------------------
+int krozatSaver::effectHorizLines(bool aInit)
+{
+ static int iyPos[] = { 0, 4, 2, 6, 1, 5, 3, 7, -1 };
+ int y;
+
+ if (aInit)
+ {
+ mw = width();
+ mh = height();
+ mi = 0;
+ }
+
+ if (iyPos[mi] < 0) return -1;
+
+ for (y=iyPos[mi]; y<mh; y+=8)
+ {
+ bitBlt(this, 0, y, &mNextScreen, 0, y, mw, 1, CopyROP, true);
+ }
+
+ mi++;
+ if (iyPos[mi] >= 0) return 160;
+ return -1;
+}
+
+
+//----------------------------------------------------------------------------
+int krozatSaver::effectVertLines(bool aInit)
+{
+ static int ixPos[] = { 0, 4, 2, 6, 1, 5, 3, 7, -1 };
+ int x;
+
+ if (aInit)
+ {
+ mw = width();
+ mh = height();
+ mi = 0;
+ }
+
+ if (ixPos[mi] < 0) return -1;
+
+ for (x=ixPos[mi]; x<mw; x+=8)
+ {
+ bitBlt(this, x, 0, &mNextScreen, x, 0, 1, mh, CopyROP, true);
+ }
+
+ mi++;
+ if (ixPos[mi] >= 0) return 160;
+ return -1;
+}
+
+
+//-----------------------------------------------------------------------------
+void krozatSaver::startPainter(Qt::PenStyle aPen)
+{
+ QBrush brush;
+ brush.setPixmap(mNextScreen);
+ if (mPainter.isActive())
+ mPainter.end();
+ mPainter.begin(this);
+ mPainter.setBrush(brush);
+ mPainter.setPen(aPen);
+}
+
+
+//-----------------------------------------------------------------------------
+void krozatSaver::restart()
+{
+ mEffectRunning = false;
+ mEffect = NULL;
+ blank();
+ slotTimeout();
+}
+
+
+//-----------------------------------------------------------------------------
+void krozatSaver::slotTimeout()
+{
+ int tmout = -1;
+ int i;
+
+ if (mEffectRunning)
+ {
+ tmout = (this->*mEffect)(false);
+ }
+ else
+ {
+ loadNextImage();
+ createNextScreen();
+
+ if (mNumEffects > 1) i = rand() % mNumEffects;
+ else i = 0;
+
+ mEffect = mEffectList[i];
+ mEffectRunning = true;
+ tmout = (this->*mEffect)(true);
+ }
+ if (tmout <= 0)
+ {
+ tmout = mDelay;
+ mEffectRunning = false;
+ }
+ mTimer.start(tmout, true);
+}
+
+
+//----------------------------------------------------------------------------
+void krozatSaver::showNextScreen()
+{
+ bitBlt(this, 0, 0, &mNextScreen, 0, 0,
+ mNextScreen.width(), mNextScreen.height(), CopyROP, true);
+}
+
+
+//----------------------------------------------------------------------------
+void krozatSaver::createNextScreen()
+{
+ QPainter p;
+ int ww, wh, iw, ih, x, y;
+ double fx, fy;
+
+ if (mNextScreen.size() != size())
+ mNextScreen.resize(size());
+
+ //backgroundcolor
+ mNextScreen.fill( QColor("#21449C") );
+
+ ww = mNextScreen.width();
+ wh = mNextScreen.height();
+ iw = mImage.width();
+ ih = mImage.height();
+
+ p.begin(&mNextScreen);
+
+ if (mFileList.isEmpty())
+ {
+ p.setPen(QColor("white"));
+ p.drawText(20 + (rand() % (ww>>1)), 20 + (rand() % (wh>>1)),
+ i18n("No images found"));
+ }
+ else
+ {
+ x = (ww - iw) >> 1;
+ y = (wh - ih) >> 1;
+ // bitBlt(&mNextScreen, x, y, &mImage, 0, 0, iw, ih, CopyROP, false);
+ p.drawImage(x, y, mImage);
+ }
+
+ p.end();
+}
+
+
+//----------------------------------------------------------------------------
+void krozatSaver::loadNextImage()
+{
+ QString fname, fpath;
+ int num, i, j;
+
+ num = mFileList.count();
+ if (mFileIdx >= num) mFileIdx = 0;
+ fname = mFileList[mFileIdx];
+
+ if (!mDirectory.isEmpty())
+ fpath = mDirectory + '/' + fname;
+ else
+ fpath = fname;
+
+ if (!mImage.load(fpath))
+ {
+ printf(i18n("Failed to load image \"%1\"\n").arg(fpath).local8Bit());
+ mFileList.remove(fname);
+ if (!mFileList.isEmpty())
+ loadNextImage();
+ return;
+ }
+ mFileIdx++;
+
+ i = fname.findRev('.');
+ if (i < 0) i = 32767;
+ j = fname.findRev('/') + 1;
+ if (j < 0) j = 0;
+ mImageName = fname.mid(j, i-j);
+}
+
+
+//----------------------------------------------------------------------------
+void krozatSaver::loadDirectory()
+{
+ QDir dir(mDirectory);
+
+ mFileIdx = 0;
+ mFileList.clear();
+ mFileList = dir.entryList();
+ mFileList.remove(".");
+ mFileList.remove("..");
+}
+
+
+//-----------------------------------------------------------------------------
+void krozatSaver::blank()
+{
+ erase();
+}
+
+
+//=============================================================================
+// Class krozatSetup
+//=============================================================================
+krozatSetup::krozatSetup(QWidget *aParent, const char *aName):
+ QDialog(aParent, aName, TRUE )
+{
+ setCaption(i18n("Setup Slide Show Screen Saver"));
+
+ QPushButton *button;
+
+ QVBoxLayout *tl = new QVBoxLayout(this, 10, 10);
+ QHBoxLayout *tl1 = new QHBoxLayout;
+ tl->addLayout(tl1);
+
+ KButtonBox *bbox = new KButtonBox(this);
+ button = bbox->addButton(i18n("About"));
+ connect(button, SIGNAL(clicked()), SLOT(slotAbout()));
+ bbox->addStretch(1);
+
+ button = bbox->addButton(i18n("OK"));
+ connect(button, SIGNAL(clicked()), SLOT(slotOkPressed()));
+
+ button = bbox->addButton(i18n("Cancel"));
+ connect(button, SIGNAL(clicked()), SLOT(reject()));
+ bbox->layout();
+ tl->addWidget(bbox);
+
+ tl->freeze();
+}
+
+
+
+//-----------------------------------------------------------------------------
+void krozatSetup::slotOkPressed()
+{
+ accept();
+}
+
+
+//-----------------------------------------------------------------------------
+void krozatSetup::slotAbout()
+{
+ KMessageBox::about(this,
+ i18n("SlideShow Version 1.1\n\n"
+ "Copyright (c) 1999 by\n"
+ "Stefan Taferner <taferner@kde.org>\n"));
+}
+
+
+//-----------------------------------------------------------------------------
+void krozatSetup::minSize(QWidget* aWidget)
+{
+ aWidget->setFixedSize(aWidget->sizeHint());
+}
+
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