Added KDE3 version of Tellico

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/tellico@1097620 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 170 insertions, 0 deletions

diff --git a/src/gui/ratingwidget.cpp b/src/gui/ratingwidget.cpp
new file mode 100644
index 0000000..4921f21
--- /dev/null
+++ b/src/gui/ratingwidget.cpp
@@ -0,0 +1,170 @@
+/***************************************************************************
+    copyright            : (C) 2003-2006 by Robby Stephenson
+    email                : robby@periapsis.org
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of version 2 of the GNU General Public License as  *
+ *   published by the Free Software Foundation;                            *
+ *                                                                         *
+ ***************************************************************************/
+
+#include "ratingwidget.h"
+#include "../field.h"
+#include "../latin1literal.h"
+#include "../tellico_utils.h"
+#include "../tellico_debug.h"
+
+#include <kiconloader.h>
+
+#include <qintdict.h>
+#include <qlayout.h>
+
+namespace {
+  static const int RATING_WIDGET_MAX_ICONS = 10; // same as in Field::ratingValues()
+  static const int RATING_WIDGET_MAX_STAR_SIZE = 24;
+}
+
+using Tellico::GUI::RatingWidget;
+
+const QPixmap& RatingWidget::pixmap(const QString& value_) {
+  static QIntDict<QPixmap> pixmaps;
+  if(pixmaps.isEmpty()) {
+    pixmaps.insert(-1, new QPixmap());
+  }
+  bool ok;
+  int n = Tellico::toUInt(value_, &ok);
+  if(!ok || n < 1 || n > 10) {
+    return *pixmaps[-1];
+  }
+  if(pixmaps[n]) {
+    return *pixmaps[n];
+  }
+
+  QString picName = QString::fromLatin1("stars%1").arg(n);
+  QPixmap* pix = new QPixmap(UserIcon(picName));
+  pixmaps.insert(n, pix);
+  return *pix;
+}
+
+RatingWidget::RatingWidget(Data::FieldPtr field_, QWidget* parent_, const char* name_/*=0*/)
+    : QHBox(parent_, name_), m_field(field_), m_currIndex(-1) {
+  m_pixOn = UserIcon(QString::fromLatin1("star_on"));
+  m_pixOff = UserIcon(QString::fromLatin1("star_off"));
+  setSpacing(0);
+
+  // find maximum width and height
+  int w = QMAX(RATING_WIDGET_MAX_STAR_SIZE, QMAX(m_pixOn.width(), m_pixOff.width()));
+  int h = QMAX(RATING_WIDGET_MAX_STAR_SIZE, QMAX(m_pixOn.height(), m_pixOff.height()));
+  for(int i = 0; i < RATING_WIDGET_MAX_ICONS; ++i) {
+    QLabel* l = new QLabel(this);
+    l->setFixedSize(w, h);
+    m_widgets.append(l);
+  }
+  init();
+
+  QBoxLayout* l = dynamic_cast<QBoxLayout*>(layout());
+  if(l) {
+    l->addStretch(1);
+  }
+}
+
+void RatingWidget::init() {
+  updateBounds();
+  m_total = QMIN(m_max, static_cast<int>(m_widgets.count()));
+  uint i = 0;
+  for( ; static_cast<int>(i) < m_total; ++i) {
+    m_widgets.at(i)->setPixmap(m_pixOff);
+  }
+  for( ; i < m_widgets.count(); ++i) {
+    m_widgets.at(i)->setPixmap(QPixmap());
+  }
+  update();
+}
+
+void RatingWidget::updateBounds() {
+  bool ok; // not used;
+  m_min = Tellico::toUInt(m_field->property(QString::fromLatin1("minimum")), &ok);
+  m_max = Tellico::toUInt(m_field->property(QString::fromLatin1("maximum")), &ok);
+  if(m_max > RATING_WIDGET_MAX_ICONS) {
+    myDebug() << "RatingWidget::updateBounds() - max is too high: " << m_max << endl;
+    m_max = RATING_WIDGET_MAX_ICONS;
+  }
+  if(m_min < 1) {
+    m_min = 1;
+  }
+}
+
+void RatingWidget::update() {
+  int i = 0;
+  for( ; i <= m_currIndex; ++i) {
+    m_widgets.at(i)->setPixmap(m_pixOn);
+  }
+  for( ; i < m_total; ++i) {
+    m_widgets.at(i)->setPixmap(m_pixOff);
+  }
+
+  QHBox::update();
+}
+
+void RatingWidget::mousePressEvent(QMouseEvent* event_) {
+  // only react to left button
+  if(event_->button() != Qt::LeftButton) {
+    return;
+  }
+
+  int idx;
+  QWidget* child = childAt(event_->pos());
+  if(child) {
+    idx = m_widgets.findRef(static_cast<QLabel*>(child));
+    // if the widget is clicked beyond the maximum value, clear it
+    // remember total and min are values, but index is zero-based!
+    if(idx > m_total-1) {
+      idx = -1;
+    } else if(idx < m_min-1) {
+      idx = m_min-1; // limit to minimum, remember index is zero-based
+    }
+  } else {
+    idx = -1;
+  }
+  if(m_currIndex != idx) {
+    m_currIndex = idx;
+    update();
+    emit modified();
+  }
+}
+
+void RatingWidget::clear() {
+  m_currIndex = -1;
+  update();
+}
+
+QString RatingWidget::text() const {
+  // index is index of the list, which is zero-based. Add 1!
+  return m_currIndex == -1 ? QString::null : QString::number(m_currIndex+1);
+}
+
+void RatingWidget::setText(const QString& text_) {
+  bool ok;
+  // text is value, subtract one to get index
+  m_currIndex = Tellico::toUInt(text_, &ok)-1;
+  if(ok) {
+    if(m_currIndex > m_total-1) {
+      m_currIndex = -1;
+    } else if(m_currIndex < m_min-1) {
+      m_currIndex = m_min-1; // limit to minimum, remember index is zero-based
+    }
+  } else {
+    m_currIndex = -1;
+  }
+  update();
+}
+
+void RatingWidget::updateField(Data::FieldPtr field_) {
+  m_field = field_;
+  init();
+}
+
+#include "ratingwidget.moc"