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-rw-r--r--cervisia/logtree.cpp501
1 files changed, 501 insertions, 0 deletions
diff --git a/cervisia/logtree.cpp b/cervisia/logtree.cpp
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+++ b/cervisia/logtree.cpp
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+/*
+ * Copyright (C) 1999-2002 Bernd Gehrmann
+ * [email protected]
+ * Copyright (c) 2003-2004 Christian Loose <[email protected]>
+ *
+ * This program 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 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include "logtree.h"
+
+#include <qpainter.h>
+#include <kdebug.h>
+#include <kglobal.h>
+#include <kglobalsettings.h>
+
+#include "loginfo.h"
+#include "tooltip.h"
+
+
+const int LogTreeView::BORDER = 8;
+const int LogTreeView::INSPACE = 3;
+
+namespace
+{
+ bool static_initialized = false;
+ int static_width;
+ int static_height;
+}
+
+class LogTreeItem
+{
+public:
+ Cervisia::LogInfo m_logInfo;
+ QString branchpoint;
+ bool firstonbranch;
+ int row;
+ int col;
+ bool selected;
+};
+
+
+class LogTreeConnection
+{
+public:
+ LogTreeItem *start;
+ LogTreeItem *end;
+};
+
+
+LogTreeView::LogTreeView(QWidget *parent, const char *name)
+ : QTable(parent, name)
+{
+ if (!static_initialized)
+ {
+ static_initialized = true;
+ QFontMetrics fm( fontMetrics() );
+ static_width = fm.width("1234567890") + 2*BORDER + 2*INSPACE;
+ static_height = 2*fm.height() + 2*BORDER + 3*INSPACE;
+ }
+
+ setNumCols(0);
+ setNumRows(0);
+ setReadOnly(true);
+ setFocusStyle(QTable::FollowStyle);
+ setSelectionMode(QTable::NoSelection);
+ setShowGrid(false);
+ horizontalHeader()->hide();
+ setTopMargin(0);
+ verticalHeader()->hide();
+ setLeftMargin(0);
+ setFrameStyle( QFrame::WinPanel | QFrame::Sunken );
+ setBackgroundMode(PaletteBase);
+ setFocusPolicy(NoFocus);
+
+ currentRow = -1;
+ currentCol = -1;
+
+ items.setAutoDelete(true);
+ connections.setAutoDelete(true);
+
+ Cervisia::ToolTip* toolTip = new Cervisia::ToolTip(viewport());
+
+ connect(toolTip, SIGNAL(queryToolTip(const QPoint&, QRect&, QString&)),
+ this, SLOT(slotQueryToolTip(const QPoint&, QRect&, QString&)));
+}
+
+
+void LogTreeView::addRevision(const Cervisia::LogInfo& logInfo)
+{
+ QString branchpoint, branchrev;
+
+ const QString rev(logInfo.m_revision);
+
+ // find branch
+ int pos1, pos2;
+ if ((pos2 = rev.findRev('.')) > 0 &&
+ (pos1 = rev.findRev('.', pos2-1)) > 0)
+ {
+ // e. g. for rev = 1.1.2.3 we have
+ // branchrev = 1.1.2, branchpoint = 1.1
+ branchrev = rev.left(pos2);
+ branchpoint = rev.left(pos1);
+ }
+
+ if (branchrev.isEmpty())
+ {
+ // Most probably we are on the trunk
+ setNumRows(numRows()+1);
+ setNumCols(1);
+ LogTreeItem *item = new LogTreeItem;
+ item->m_logInfo = logInfo;
+ item->branchpoint = branchpoint;
+ item->firstonbranch = false;
+ item->row = numRows()-1;
+ item->col = 0;
+ item->selected = false;
+ items.append(item);
+ return;
+ }
+
+ // look whether we have revisions on this branch
+ // shift them up
+ int row=-1, col=-1;
+ QPtrListIterator<LogTreeItem> it(items);
+ for (; it.current(); ++it)
+ {
+ if (branchrev == (it.current()->m_logInfo.m_revision).left(branchrev.length()))
+ {
+ it.current()->firstonbranch = false;
+ row = it.current()->row;
+ col = it.current()->col;
+ it.current()->row--;
+ // Are we at the top of the widget?
+ if (row == 0)
+ {
+ QPtrListIterator<LogTreeItem> it2(items);
+ for (; it2.current(); ++it2)
+ it2.current()->row++;
+ setNumRows(numRows()+1);
+ row = 1;
+ }
+ }
+ }
+
+ if (row == -1)
+ {
+ // Ok, so we must open a new branch
+ // Let's find the branch point
+ QPtrListIterator<LogTreeItem> it3(items);
+ for (it3.toLast(); it3.current(); --it3)
+ {
+ if (branchpoint == it3.current()->m_logInfo.m_revision)
+ {
+ // Move existing branches to the right
+ QPtrListIterator<LogTreeItem> it4(items);
+ for (; it4.current(); ++it4)
+ if (it4.current()->col > it3.current()->col)
+ {
+ it4.current()->col++;
+ }
+ setNumCols(numCols()+1);
+ row = it3.current()->row-1;
+ col = it3.current()->col+1;
+ if (row == -1)
+ {
+ QPtrListIterator<LogTreeItem> it5(items);
+ for (; it5.current(); ++it5)
+ it5.current()->row++;
+ setNumRows(numRows()+1);
+ row = 0;
+ }
+ break;
+ }
+ }
+ }
+
+ LogTreeItem *item = new LogTreeItem;
+ item->m_logInfo = logInfo;
+ item->branchpoint = branchpoint;
+ item->firstonbranch = true;
+ item->row = row;
+ item->col = col;
+ item->selected = false;
+ items.append(item);
+
+#if 0
+ cout << "Dump: " << endl;
+ cout << "Rows: " << numRows() << "Cols: " << numCols() << endl;
+ QPtrListIterator<LogTreeItem> it5(items);
+ for (; it5.current(); ++it5)
+ {
+ cout << "Rev: "<< it5.current()->rev << endl;
+ cout << "row: "<< it5.current()->row << ", col: " << it5.current()->col << endl;
+ cout << "fob: "<< it5.current()->firstonbranch << endl;
+ }
+ cout << "End Dump" << endl;
+#endif
+
+}
+
+
+void LogTreeView::collectConnections()
+{
+ QPtrListIterator<LogTreeItem> it(items);
+ for (; it.current(); ++it)
+ {
+ QString rev = it.current()->m_logInfo.m_revision;
+
+ QPtrListIterator<LogTreeItem> it2(items);
+ for (it2=it,++it2; it2.current(); ++it2)
+ if (it2.current()->branchpoint == rev &&
+ it2.current()->firstonbranch)
+ {
+ LogTreeConnection *conn = new LogTreeConnection;
+ conn->start = it.current();
+ conn->end = it2.current();
+ connections.append(conn);
+ }
+ }
+}
+
+
+void LogTreeView::setSelectedPair(QString selectionA, QString selectionB)
+{
+ QPtrListIterator<LogTreeItem> it(items);
+ for(; it.current(); ++it)
+ {
+ bool oldstate = it.current()->selected;
+ bool newstate = ( selectionA == it.current()->m_logInfo.m_revision ||
+ selectionB == it.current()->m_logInfo.m_revision );
+ if (oldstate != newstate)
+ {
+ it.current()->selected = newstate;
+ repaint(false);
+ }
+ }
+}
+
+
+QSize LogTreeView::sizeHint() const
+{
+ return QSize(2 * static_width, 3 * static_height);
+}
+
+
+QString LogTreeView::text(int row, int col) const
+{
+ LogTreeItem* item = 0;
+
+ QPtrListIterator<LogTreeItem> it(items);
+ for( ; it.current(); ++it )
+ {
+ if( it.current()->col == col && it.current()->row == row )
+ {
+ item = it.current();
+ break;
+ }
+ }
+
+ QString text;
+
+ if( item && !item->m_logInfo.m_author.isNull() )
+ text = item->m_logInfo.createToolTipText();
+
+ return text;
+}
+
+
+void LogTreeView::paintCell(QPainter *p, int row, int col, const QRect& cr,
+ bool selected, const QColorGroup& cg)
+{
+ Q_UNUSED(selected)
+ Q_UNUSED(cr)
+ bool followed, branched;
+ LogTreeItem *item;
+
+ branched = false;
+ followed = false;
+ item = 0;
+
+ QPtrListIterator<LogTreeItem> it(items);
+ for(; it.current(); ++it)
+ {
+ int itcol = it.current()->col;
+ int itrow = it.current()->row;
+ if (itrow == row-1 && itcol == col)
+ followed = true;
+ if (itrow == row && itcol == col)
+ item = it.current();
+ }
+ QPtrListIterator<LogTreeConnection> it2(connections);
+ for (; it2.current(); ++it2)
+ {
+ int itcol1 = it2.current()->start->col;
+ int itcol2 = it2.current()->end->col;
+ int itrow = it2.current()->start->row;
+ if (itrow == row && itcol1 <= col && itcol2 > col)
+ branched = true;
+ }
+
+ p->fillRect(0, 0, columnWidth(col), rowHeight(row),
+ cg.base());
+ p->setPen(cg.text());
+ if (item)
+ paintRevisionCell(p, row, col, item->m_logInfo,
+ followed, branched, item->selected);
+ else if (followed || branched)
+ paintConnector(p, row, col, followed, branched);
+}
+
+
+void LogTreeView::paintConnector(QPainter *p,
+ int row, int col, bool followed, bool branched)
+{
+ const int midx = columnWidth(col) / 2;
+ const int midy = rowHeight(row) / 2;
+
+ p->drawLine(0, midy, branched ? columnWidth(col) : midx, midy);
+ if (followed)
+ p->drawLine(midx, midy, midx, 0);
+}
+
+
+QSize LogTreeView::computeSize(const Cervisia::LogInfo& logInfo,
+ int* authorHeight,
+ int* tagsHeight) const
+{
+ const QFontMetrics fm(fontMetrics());
+
+ const QString tags(logInfo.tagsToString(Cervisia::TagInfo::Branch | Cervisia::TagInfo::Tag,
+ Cervisia::TagInfo::Branch));
+
+ const QSize r1 = fm.size(AlignCenter, logInfo.m_revision);
+ const QSize r3 = fm.size(AlignCenter, logInfo.m_author);
+
+ if (authorHeight)
+ *authorHeight = r3.height();
+
+ int infoWidth = kMax(static_width - 2 * BORDER, kMax(r1.width(), r3.width()));
+ int infoHeight = r1.height() + r3.height() + 3 * INSPACE;
+
+ if (!tags.isEmpty())
+ {
+ const QSize r2 = fm.size(AlignCenter, tags);
+ infoWidth = kMax(infoWidth, r2.width());
+ infoHeight += r2.height() + INSPACE;
+ if (tagsHeight)
+ *tagsHeight = r2.height();
+ }
+ else
+ {
+ if (tagsHeight)
+ *tagsHeight = 0;
+ }
+ infoWidth += 2 * INSPACE;
+
+ return QSize(infoWidth, infoHeight);
+}
+
+
+void LogTreeView::paintRevisionCell(QPainter *p,
+ int row, int col,
+ const Cervisia::LogInfo& logInfo,
+ bool followed, bool branched, bool selected)
+{
+ int authorHeight;
+ int tagsHeight;
+ const QSize infoSize(computeSize(logInfo, &authorHeight, &tagsHeight));
+ const QSize cellSize(columnWidth(col), rowHeight(row));
+
+ const int midx(cellSize.width() / 2);
+ const int midy(cellSize.height() / 2);
+
+ QRect rect(QPoint((cellSize.width() - infoSize.width()) / 2,
+ (cellSize.height() - infoSize.height()) / 2),
+ infoSize);
+
+ // Connectors
+ if (followed)
+ p->drawLine(midx, 0, midx, rect.y()); // to the top
+
+ if (branched)
+ p->drawLine(rect.x() + infoSize.width(), midy, cellSize.width(), midy); // to the right
+
+ p->drawLine(midx, rect.y() + infoSize.height(), midx, cellSize.height()); // to the bottom
+
+ // The box itself
+ if (selected)
+ {
+ p->fillRect(rect, KGlobalSettings::highlightColor());
+ p->setPen(KGlobalSettings::highlightedTextColor());
+ }
+ else
+ {
+ p->drawRoundRect(rect, 10, 10);
+ }
+
+ rect.setY(rect.y() + INSPACE);
+
+ p->drawText(rect, AlignHCenter, logInfo.m_author);
+ rect.setY(rect.y() + authorHeight + INSPACE);
+
+ const QString tags(logInfo.tagsToString(Cervisia::TagInfo::Branch | Cervisia::TagInfo::Tag,
+ Cervisia::TagInfo::Branch));
+ if (!tags.isEmpty())
+ {
+ const QFont font(p->font());
+ QFont underline(font);
+ underline.setUnderline(true);
+
+ p->setFont(underline);
+ p->drawText(rect, AlignHCenter, tags);
+ p->setFont(font);
+
+ rect.setY(rect.y() + tagsHeight + INSPACE);
+ }
+
+ p->drawText(rect, AlignHCenter, logInfo.m_revision);
+}
+
+
+void LogTreeView::contentsMousePressEvent(QMouseEvent *e)
+{
+ if ( e->button() == MidButton ||
+ e->button() == LeftButton)
+ {
+ int row = rowAt( e->pos().y() );
+ int col = columnAt( e->pos().x() );
+
+ QPtrListIterator<LogTreeItem> it(items);
+ for(; it.current(); ++it)
+ if (it.current()->row == row
+ && it.current()->col == col)
+ {
+ // Change selection for revision B if the middle mouse button or
+ // the left mouse button with the control key was pressed
+ bool changeRevB = (e->button() == MidButton) ||
+ (e->button() == LeftButton &&
+ e->state() & ControlButton);
+
+ emit revisionClicked(it.current()->m_logInfo.m_revision, changeRevB);
+ break;
+ }
+ }
+
+ viewport()->update();
+}
+
+
+void LogTreeView::recomputeCellSizes ()
+{
+ // Compute maximum for each column and row
+ for (QPtrListIterator<LogTreeItem> it(items); it.current(); ++it)
+ {
+ const LogTreeItem *item = it.current();
+
+ const QSize cellSize(computeSize(item->m_logInfo) + QSize(2 * BORDER, 2 * BORDER));
+
+ setColumnWidth(item->col, kMax(columnWidth(item->col), cellSize.width()));
+ setRowHeight(item->row, kMax(rowHeight(item->row), cellSize.height()));
+ }
+
+ viewport()->update();
+}
+
+
+void LogTreeView::slotQueryToolTip(const QPoint& viewportPos,
+ QRect& viewportRect,
+ QString& tipText)
+{
+ const QPoint contentsPos(viewportToContents(viewportPos));
+ const int column(columnAt(contentsPos.x()));
+ const int row(rowAt(contentsPos.y()));
+
+ tipText = text(row, column);
+ if (tipText.isEmpty())
+ return;
+
+ viewportRect = cellGeometry(row, column);
+ viewportRect.moveTopLeft(contentsToViewport(viewportRect.topLeft()));
+}
+
+
+#include "logtree.moc"
+
+
+// Local Variables:
+// c-basic-offset: 4
+// End:
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