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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commitc90c389a8a8d9d8661e9772ec4144c5cf2039f23 (patch)
tree6d8391395bce9eaea4ad78958617edb20c6a7573 /kreversi/board.cpp
downloadtdegames-c90c389a8a8d9d8661e9772ec4144c5cf2039f23.tar.gz
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Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegames@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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diff --git a/kreversi/board.cpp b/kreversi/board.cpp
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+/* Yo Emacs, this -*- C++ -*-
+ *******************************************************************
+ *******************************************************************
+ *
+ *
+ * KREVERSI
+ *
+ *
+ *******************************************************************
+ *
+ * A Reversi (or sometimes called Othello) game
+ *
+ *******************************************************************
+ *
+ * created 1997 by Mario Weilguni <mweilguni@sime.com>
+ *
+ *******************************************************************
+ *
+ * This file is part of the KDE project "KREVERSI"
+ *
+ * KREVERSI is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * KREVERSI is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with KREVERSI; see the file COPYING. If not, write to
+ * the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ *******************************************************************
+ */
+
+
+#include <unistd.h>
+
+#include <qpainter.h>
+#include <qfont.h>
+
+#include <kapplication.h>
+#include <kstandarddirs.h>
+#include <kconfig.h>
+#include <knotifyclient.h>
+#include <klocale.h>
+#include <kexthighscore.h>
+#include <kdebug.h>
+
+#include "board.h"
+#include "prefs.h"
+#include "Engine.h"
+#include "qreversigame.h"
+
+
+#ifndef PICDATA
+#define PICDATA(x) KGlobal::dirs()->findResource("appdata", QString("pics/")+ x)
+#endif
+
+const uint HINT_BLINKRATE = 250000;
+const uint ANIMATION_DELAY = 3000;
+const uint CHIP_OFFSET[NbColors] = { 24, 1 };
+const uint CHIP_SIZE = 36;
+
+#define OFFSET() (zoomedSize() * 3 / 4)
+
+
+// ================================================================
+// class KReversiBoardView
+
+
+QReversiBoardView::QReversiBoardView(QWidget *parent, QReversiGame *krgame)
+ : QWidget(parent, "board"),
+ chiptype(Unloaded)
+{
+ m_krgame = krgame;
+
+ m_marksShowing = true;
+ m_legalMovesShowing = false;
+ m_legalMoves.clear();
+
+ m_showLastMove = false;
+ m_lastMoveShown = SimpleMove();
+}
+
+
+QReversiBoardView::~QReversiBoardView()
+{
+}
+
+
+// ----------------------------------------------------------------
+
+
+// Start it all up.
+//
+
+void QReversiBoardView::start()
+{
+ updateBoard(true);
+ adjustSize();
+}
+
+
+void QReversiBoardView::loadChips(ChipType type)
+{
+ QString name("pics/");
+ name += (type==Colored ? "chips.png" : "chips_mono.png");
+
+ QString s = KGlobal::dirs()->findResource("appdata", name);
+ bool ok = allchips.load(s);
+
+ Q_ASSERT( ok && allchips.width()==CHIP_SIZE*5
+ && allchips.height()==CHIP_SIZE*5 );
+ chiptype = type;
+ update();
+}
+
+
+// Negative speed is allowed. If speed is negative,
+// no animations are displayed.
+//
+
+void QReversiBoardView::setAnimationSpeed(uint speed)
+{
+ if (speed <= 10)
+ anim_speed = speed;
+}
+
+
+// Handle mouse clicks.
+//
+
+void QReversiBoardView::mousePressEvent(QMouseEvent *e)
+{
+ // Only handle left button. No context menu.
+ if ( e->button() != LeftButton ) {
+ e->ignore();
+ return;
+ }
+
+ int offset = m_marksShowing ? OFFSET() : 0;
+ int px = e->pos().x()- 1 - offset;
+ int py = e->pos().y()- 1 - offset;
+
+ if (px < 0 || px >= 8 * (int) zoomedSize()
+ || py < 0 || py >= 8 * (int) zoomedSize()) {
+ e->ignore();
+ return;
+ }
+
+ emit signalSquareClicked(py / zoomedSize(), px / zoomedSize());
+}
+
+
+void QReversiBoardView::showHint(Move move)
+{
+ // Only show a hint if there is a move to show.
+ if (move.x() == -1)
+ return;
+
+ // Blink with a piece at the location where the hint move points.
+ //
+ // The isVisible condition has been added so that when the player
+ // was viewing a hint and quits the game window, the game doesn't
+ // still have to do all this looping and directly ends.
+ QPainter p(this);
+ p.setPen(black);
+ m_hintShowing = true;
+ for (int flash = 0;
+ flash < 100 && m_hintShowing && isVisible();
+ flash++)
+ {
+ if (flash & 1) {
+ // FIXME: Draw small circle if showLegalMoves is turned on.
+ drawPiece(move.y() - 1, move.x() - 1, Nobody);
+ if (m_legalMovesShowing)
+ drawSmallCircle(move.x(), move.y(), p);
+ }
+ else
+ drawPiece(move.y() - 1, move.x() - 1, m_krgame->toMove());
+
+ // keep GUI alive while waiting
+ for (int dummy = 0; dummy < 5; dummy++) {
+ usleep(HINT_BLINKRATE / 5);
+ qApp->processEvents();
+ }
+ }
+ m_hintShowing = false;
+
+ // Draw the empty square again.
+ drawPiece(move.y() - 1, move.x() - 1, m_krgame->color(move.x(), move.y()));
+ if (m_legalMovesShowing)
+ drawSmallCircle(move.x(), move.y(), p);
+}
+
+
+// Set the member m_hintShowing to false. This will make showHint()
+// end, if it is running.
+//
+
+void QReversiBoardView::quitHint()
+{
+ m_hintShowing = false;
+}
+
+
+void QReversiBoardView::setShowLegalMoves(bool show)
+{
+ m_legalMovesShowing = show;
+ updateBoard(true);
+}
+
+void QReversiBoardView::setShowMarks(bool show)
+{
+ m_marksShowing = show;
+ updateBoard(true);
+}
+
+
+void QReversiBoardView::setShowLastMove(bool show)
+{
+ m_showLastMove = show;
+ updateBoard(true);
+}
+
+
+// ================================================================
+// Functions related to drawing/painting
+
+
+// Flash all pieces which are turned.
+//
+// NOTE: This code is quite a hack. Should make it better.
+//
+
+void QReversiBoardView::animateChanged(Move move)
+{
+ if (anim_speed == 0)
+ return;
+
+ // Draw the new piece.
+ drawPiece(move.y() - 1, move.x() - 1, move.color());
+
+ // Animate row by row in all directions.
+ for (int dx = -1; dx < 2; dx++)
+ for (int dy = -1; dy < 2; dy++)
+ if ((dx != 0) || (dy != 0))
+ animateChangedRow(move.y() - 1, move.x() - 1, dy, dx);
+}
+
+
+bool QReversiBoardView::isField(int row, int col) const
+{
+ return ((0 <= row) && (row < 8) && (0 <= col) && (col < 8));
+}
+
+
+void QReversiBoardView::animateChangedRow(int row, int col, int dy, int dx)
+{
+ row = row + dy;
+ col = col + dx;
+ while (isField(row, col)) {
+ if (m_krgame->wasTurned(col+1, row+1)) {
+ KNotifyClient::event(winId(), "click", i18n("Click"));
+ rotateChip(row, col);
+ } else
+ return;
+
+ col += dx;
+ row += dy;
+ }
+}
+
+
+void QReversiBoardView::rotateChip(uint row, uint col)
+{
+ // Check which direction the chip has to be rotated. If the new
+ // chip is white, the chip was black first, so lets begin at index
+ // 1, otherwise it was white.
+ Color color = m_krgame->color(col+1, row+1);
+ uint from = CHIP_OFFSET[opponent(color)];
+ uint end = CHIP_OFFSET[color];
+ int delta = (color==White ? 1 : -1);
+
+ from += delta;
+ end -= delta;
+
+ for (uint i = from; i != end; i += delta) {
+ drawOnePiece(row, col, i);
+ kapp->flushX(); // FIXME: use QCanvas to avoid flicker...
+ usleep(ANIMATION_DELAY * anim_speed);
+ }
+}
+
+
+// Redraw the board. If 'force' is true, redraw everything, otherwise
+// only redraw those squares that have changed (marked by
+// m_krgame->squareModified(col, row)).
+//
+
+void QReversiBoardView::updateBoard (bool force)
+{
+ QPainter p(this);
+ p.setPen(black);
+
+ // If we are showing legal moves, we have to erase the old ones
+ // before we can show the new ones. The easiest way to do that is
+ // to repaint everything.
+ //
+ // FIXME: A better way, perhaps, is to do the repainting in
+ // drawPiece (which should be renamed drawSquare).
+ if (m_legalMovesShowing)
+ force = true;
+
+ // Draw the squares of the board.
+ for (uint row = 0; row < 8; row++)
+ for (uint col = 0; col < 8; col++)
+ if ( force || m_krgame->squareModified(col + 1, row + 1) ) {
+ Color color = m_krgame->color(col + 1, row + 1);
+ drawPiece(row, col, color);
+ }
+
+ // Draw a border around the board.
+ int offset = m_marksShowing ? OFFSET() : 0;
+ p.drawRect(0 + offset, 0 + offset,
+ 8 * zoomedSize() + 2, 8 * zoomedSize() + 2);
+
+ // Draw letters and numbers if appropriate.
+ if (m_marksShowing) {
+ QFont font("Sans Serif", zoomedSize() / 2 - 6);
+ font.setWeight(QFont::DemiBold);
+ QFontMetrics metrics(font);
+
+ p.setFont(font);
+ uint charHeight = metrics.ascent();
+ for (uint i = 0; i < 8; i++) {
+ QChar letter = "ABCDEFGH"[i];
+ QChar number = "12345678"[i];
+ uint charWidth = metrics.charWidth("ABCDEFGH", i);
+
+ // The horizontal letters
+ p.drawText(offset + i * zoomedSize() + (zoomedSize() - charWidth) / 2,
+ offset - charHeight / 2 + 2,
+ QString(letter));
+ p.drawText(offset + i * zoomedSize() + (zoomedSize() - charWidth) / 2,
+ offset + 8 * zoomedSize() + offset - charHeight / 2 + 2,
+ QString(letter));
+
+ // The vertical numbers
+ p.drawText((offset - charWidth) / 2 + 2,
+ offset + (i + 1) * zoomedSize() - charHeight / 2 + 2,
+ QString(number));
+ p.drawText(offset + 8 * zoomedSize() + (offset - charWidth) / 2 + 2,
+ offset + (i + 1) * zoomedSize() - charHeight / 2 + 2,
+ QString(number));
+ }
+ }
+
+ // Show legal moves.
+ if (m_legalMovesShowing)
+ showLegalMoves();
+
+ // Show last move
+ int ellipseSize = zoomedSize() / 3;
+ SimpleMove lastMove = m_krgame->lastMove();
+ if (m_showLastMove && lastMove.x() != -1) {
+ // Remove the last shown last move.
+ int col = m_lastMoveShown.x();
+ int row = m_lastMoveShown.y();
+ if (col != -1 && row != -1) {
+ if (lastMove.x() != col || lastMove.y() != row) {
+ //kdDebug() << "Redrawing piece at [" << col << "," << row
+ // << "] with color " << m_krgame->color(col, row)
+ // << endl;
+ drawPiece(row - 1, col - 1, m_krgame->color(col, row));
+ }
+ }
+
+ p.setPen(yellow);
+ p.setBackgroundColor(yellow);
+ p.setBrush(SolidPattern);
+
+ //kdDebug() << "Marking last move at ["
+ // << lastMove.x() << "," << lastMove.y() << "]"
+ // << endl;
+ int px = offset + (lastMove.x() - 1) * zoomedSize() + zoomedSize() / 2;
+ int py = offset + (lastMove.y() - 1) * zoomedSize() + zoomedSize() / 2;
+ p.drawEllipse(px - ellipseSize / 2 + 1, py - ellipseSize / 2 + 1,
+ ellipseSize - 1, ellipseSize - 1);
+
+ m_lastMoveShown = lastMove;
+
+ p.setPen(black);
+ p.setBackgroundColor(black);
+ p.setBrush(NoBrush);
+ }
+}
+
+
+// Show legal moves on the board.
+
+void QReversiBoardView::showLegalMoves()
+{
+ QPainter p(this);
+ p.setPen(black);
+
+ // Get the legal moves in the current position.
+ Color toMove = m_krgame->toMove();
+ MoveList moves = m_krgame->position().generateMoves(toMove);
+
+ // Show the moves on the board.
+ MoveList::iterator it;
+ for (it = moves.begin(); it != moves.end(); ++it)
+ drawSmallCircle((*it).x(), (*it).y(), p);
+}
+
+
+void QReversiBoardView::drawSmallCircle(int x, int y, QPainter &p)
+{
+ int offset = m_marksShowing ? OFFSET() : 0;
+ int ellipseSize = zoomedSize() / 3;
+
+ int px = offset + (x - 1) * zoomedSize() + zoomedSize() / 2;
+ int py = offset + (y - 1) * zoomedSize() + zoomedSize() / 2;
+
+ p.drawEllipse(px - ellipseSize / 2, py - ellipseSize / 2,
+ ellipseSize, ellipseSize);
+}
+
+
+
+QPixmap QReversiBoardView::chipPixmap(Color color, uint size) const
+{
+ return chipPixmap(CHIP_OFFSET[color], size);
+}
+
+
+// Get a pixmap for the chip 'i' at size 'size'.
+//
+
+QPixmap QReversiBoardView::chipPixmap(uint i, uint size) const
+{
+ // Get the part of the 'allchips' pixmap that contains exactly that
+ // chip that we want to use.
+ QPixmap pix(CHIP_SIZE, CHIP_SIZE);
+ copyBlt(&pix, 0, 0, &allchips, (i%5) * CHIP_SIZE, (i/5) * CHIP_SIZE,
+ CHIP_SIZE, CHIP_SIZE);
+
+ // Resize (scale) the pixmap to the desired size.
+ QWMatrix wm3;
+ wm3.scale(float(size)/CHIP_SIZE, float(size)/CHIP_SIZE);
+
+ return pix.xForm(wm3);
+}
+
+
+uint QReversiBoardView::zoomedSize() const
+{
+ return qRound(float(CHIP_SIZE) * Prefs::zoom() / 100);
+}
+
+
+void QReversiBoardView::drawPiece(uint row, uint col, Color color)
+{
+ int i = (color == Nobody ? -1 : int(CHIP_OFFSET[color]));
+ drawOnePiece(row, col, i);
+}
+
+
+void QReversiBoardView::drawOnePiece(uint row, uint col, int i)
+{
+ int px = col * zoomedSize() + 1;
+ int py = row * zoomedSize() + 1;
+ QPainter p(this);
+
+ // Draw either a background pixmap or a background color to the square.
+ int offset = m_marksShowing ? OFFSET() : 0;
+ if (bg.width())
+ p.drawTiledPixmap(px + offset, py + offset,
+ zoomedSize(), zoomedSize(), bg, px, py);
+ else
+ p.fillRect(px + offset, py + offset,
+ zoomedSize(), zoomedSize(), bgColor);
+
+ // Draw a black border around the square.
+ p.setPen(black);
+ p.drawRect(px + offset, py + offset, zoomedSize(), zoomedSize());
+
+ // If no piece on the square, i.e. only the background, then return here...
+ if ( i == -1 )
+ return;
+
+ // ...otherwise finally draw the piece on the square.
+ p.drawPixmap(px + offset, py + offset, chipPixmap(i, zoomedSize()));
+}
+
+
+// We got a repaint event. We make it easy for us and redraw the
+// entire board.
+//
+
+void QReversiBoardView::paintEvent(QPaintEvent *)
+{
+ updateBoard(true);
+}
+
+
+void QReversiBoardView::adjustSize()
+{
+ int w = 8 * zoomedSize();
+
+ if (m_marksShowing)
+ w += 2 * OFFSET();
+
+ setFixedSize(w + 2, w + 2);
+}
+
+
+void QReversiBoardView::setPixmap(QPixmap &pm)
+{
+ if ( pm.width() == 0 )
+ return;
+
+ bg = pm;
+ update();
+ setErasePixmap(pm);
+}
+
+
+void QReversiBoardView::setColor(const QColor &c)
+{
+ bgColor = c;
+ bg = QPixmap();
+ update();
+ setEraseColor(c);
+}
+
+
+// Load all settings that have to do with the board view, such as
+// piece colors, background, animation speed, an so on.
+
+void QReversiBoardView::loadSettings()
+{
+ // Colors of the pieces (red/blue or black/white)
+ if ( Prefs::grayscale() ) {
+ if (chiptype != Grayscale)
+ loadChips(Grayscale);
+ }
+ else {
+ if (chiptype != Colored)
+ loadChips(Colored);
+ }
+
+ // Animation speed.
+ if ( !Prefs::animation() )
+ setAnimationSpeed(0);
+ else
+ setAnimationSpeed(10 - Prefs::animationSpeed());
+
+ // Background
+ if ( Prefs::backgroundImageChoice() ) {
+ QPixmap pm( Prefs::backgroundImage() );
+ if (!pm.isNull())
+ setPixmap(pm);
+ } else {
+ setColor( Prefs::backgroundColor() );
+ }
+}
+
+
+#include "board.moc"
+