1 #include "CmdMediator.h"
2 #include "CmdSettingsSegments.h"
3 #include "DlgSettingsSegments.h"
4 #include "EngaugeAssert.h"
6 #include "MainWindow.h"
7 #include "PointStyle.h"
10 #include <QGridLayout>
11 #include <QGraphicsScene>
16 #include "SegmentFactory.h"
17 #include "ViewPreview.h"
19 const int MIN_LENGTH_MIN = 1;
20 const int MIN_LENGTH_MAX = 10000;
21 const int POINT_SEPARATION_MIN = 5;
22 const int POINT_SEPARATION_MAX = 10000;
24 const int IMAGE_WIDTH = 400;
25 const int IMAGE_HEIGHT = 300;
27 const double TWOPI = 2.0 * 3.1415926535;
29 const double BRUSH_WIDTH = 2.0;
33 "DlgSettingsSegments",
37 m_modelSegmentsBefore (0),
38 m_modelSegmentsAfter (0),
41 LOG4CPP_INFO_S ((*mainCat)) <<
"DlgSettingsSegments::DlgSettingsSegments";
47 DlgSettingsSegments::~DlgSettingsSegments()
49 LOG4CPP_INFO_S ((*mainCat)) <<
"DlgSettingsSegments::~DlgSettingsSegments";
52 void DlgSettingsSegments::clearPoints ()
54 LOG4CPP_INFO_S ((*mainCat)) <<
"DlgSettingsSegments::clearPoints";
56 QList<GraphicsPoint*>::iterator itrP;
57 for (itrP = m_points.begin(); itrP != m_points.end(); itrP++) {
65 void DlgSettingsSegments::createControls (QGridLayout *layout,
68 LOG4CPP_INFO_S ((*mainCat)) <<
"DlgSettingsSegments::createControls";
70 QLabel *labelMinLength =
new QLabel(
"Minimum length (points):");
71 layout->addWidget(labelMinLength, row, 1);
73 m_spinMinLength =
new QSpinBox;
74 m_spinMinLength->setRange (MIN_LENGTH_MIN, MIN_LENGTH_MAX);
75 m_spinMinLength->setWhatsThis (tr (
"Select a minimum number of points in a segment.\n\n"
76 "Only segments with more points will be created.\n\n"
77 "This value should be as large as possible to reduce memory usage. This value has "
79 connect (m_spinMinLength, SIGNAL (valueChanged (
const QString &)),
this, SLOT (slotMinLength (
const QString &)));
80 layout->addWidget(m_spinMinLength, row++, 2);
82 QLabel *labelPointSeparation =
new QLabel(
"Point separation (pixels):");
83 layout->addWidget (labelPointSeparation, row, 1);
85 m_spinPointSeparation =
new QSpinBox;
86 m_spinPointSeparation->setRange (POINT_SEPARATION_MIN, POINT_SEPARATION_MAX);
87 m_spinPointSeparation->setWhatsThis (tr (
"Select a point separation in pixels.\n\n"
88 "Successive points added to a segment will be separated by this number of pixels. "
89 "If Fill Corners is enabled, then additional points will be inserted at corners so some points "
91 "This value has a lower limit"));
92 connect (m_spinPointSeparation, SIGNAL (valueChanged (
const QString &)),
this, SLOT (slotPointSeparation (
const QString &)));
93 layout->addWidget (m_spinPointSeparation, row++, 2);
95 QLabel *labelFillCorners =
new QLabel (
"Fill corners:");
96 layout->addWidget (labelFillCorners, row, 1);
98 m_chkFillCorners =
new QCheckBox;
99 m_chkFillCorners->setWhatsThis (tr (
"Fill corners.\n\n"
100 "In addition to the points placed at regular intervals, this option causes a point to be "
101 "placed at each corner. This option can capture important information in piecewise linear graphs, "
102 "but gradually curving graphs may not benefit from the additional points"));
103 connect (m_chkFillCorners, SIGNAL (stateChanged (
int)),
this, SLOT (slotFillCorners (
int)));
104 layout->addWidget (m_chkFillCorners, row++, 2);
106 QLabel *labelLineWidth =
new QLabel(
"Line width:");
107 layout->addWidget (labelLineWidth, row, 1);
109 m_spinLineWidth =
new QSpinBox;
110 m_spinLineWidth->setWhatsThis (tr (
"Select a size for the lines drawn along a segment"));
111 m_spinLineWidth->setMinimum(1);
112 connect (m_spinLineWidth, SIGNAL (valueChanged (
int)),
this, SLOT (slotLineWidth (
int)));
113 layout->addWidget (m_spinLineWidth, row++, 2);
115 QLabel *labelLineColor =
new QLabel(
"Line color:");
116 layout->addWidget (labelLineColor, row, 1);
118 m_cmbLineColor =
new QComboBox;
119 m_cmbLineColor->setWhatsThis (tr (
"Select a color for the lines drawn along a segment"));
121 connect (m_cmbLineColor, SIGNAL (activated (
const QString &)),
this, SLOT (slotLineColor (
const QString &)));
122 layout->addWidget (m_cmbLineColor, row++, 2);
125 void DlgSettingsSegments::createPreview (QGridLayout *layout,
128 LOG4CPP_INFO_S ((*mainCat)) <<
"DlgSettingsSegments::createPreview";
130 QLabel *labelPreview =
new QLabel (
"Preview");
131 layout->addWidget (labelPreview, row++, 0, 1, 4);
133 m_scenePreview =
new QGraphicsScene (
this);
134 m_viewPreview =
new ViewPreview (m_scenePreview,
this);
135 m_viewPreview->setWhatsThis (tr (
"Preview window shows the shortest line that can be segment filled, "
136 "and the effects of current settings on segments and points generated by segment fill"));
137 m_viewPreview->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
138 m_viewPreview->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
141 layout->addWidget (m_viewPreview, row++, 0, 1, 4);
144 QImage DlgSettingsSegments::createPreviewImage ()
const
146 LOG4CPP_INFO_S ((*mainCat)) <<
"DlgSettingsSegments::createPreviewImage";
148 QImage image (IMAGE_WIDTH,
150 QImage::Format_RGB32);
151 image.fill (Qt::white);
152 QPainter painter (&image);
153 painter.setRenderHint(QPainter::Antialiasing);
154 painter.setPen (QPen (QBrush (Qt::black), BRUSH_WIDTH));
156 int margin = IMAGE_WIDTH / 15;
157 int yCenter = IMAGE_HEIGHT / 2;
158 int yHeight = IMAGE_HEIGHT / 4;
159 int x, y, xLast, yLast;
164 int xStart = margin, xEnd = IMAGE_WIDTH / 2 - margin;
165 for (x = xStart; x < xEnd; x++) {
166 double s = (double) (x - xStart) / (double) (xEnd - xStart);
167 int y = yCenter - yHeight * qSin (TWOPI * s);
170 painter.drawLine (xLast, yLast, x, y);
179 xStart = IMAGE_WIDTH / 2 + margin, xEnd = IMAGE_WIDTH - margin;
180 for (x = xStart; x < xEnd; x++) {
181 double s = (double) (x - xStart) / (double) (xEnd - xStart);
183 y = yCenter - yHeight * (4.0 * s);
184 }
else if (s < 0.75) {
185 y = yCenter - yHeight * (1.0 - 4.0 * (s - 0.25));
187 y = yCenter + yHeight * (1.0 - 4 * (s - 0.75));
191 painter.drawLine (xLast, yLast, x, y);
203 LOG4CPP_INFO_S ((*mainCat)) <<
"DlgSettingsSegments::createSubPanel";
205 QWidget *subPanel =
new QWidget ();
206 QGridLayout *layout =
new QGridLayout (subPanel);
207 subPanel->setLayout (layout);
209 layout->setColumnStretch (0, 1);
210 layout->setColumnStretch (1, 0);
211 layout->setColumnStretch (2, 0);
212 layout->setColumnStretch (3, 1);
215 createControls(layout, row);
216 createPreview (layout, row);
217 QPixmap pixmap = QPixmap::fromImage (createPreviewImage());
218 m_scenePreview->addPixmap (pixmap);
225 LOG4CPP_INFO_S ((*mainCat)) <<
"DlgSettingsSegments::handleOk";
229 *m_modelSegmentsBefore,
230 *m_modelSegmentsAfter);
238 LOG4CPP_INFO_S ((*mainCat)) <<
"DlgSettingsSegments::load";
246 if (m_modelSegmentsBefore != 0) {
247 delete m_modelSegmentsBefore;
249 if (m_modelSegmentsAfter != 0) {
250 delete m_modelSegmentsAfter;
258 ENGAUGE_ASSERT (MIN_LENGTH_MIN <= m_modelSegmentsAfter->minLength ());
259 ENGAUGE_ASSERT (MIN_LENGTH_MAX >= m_modelSegmentsAfter->
minLength ());
260 ENGAUGE_ASSERT (POINT_SEPARATION_MIN <= m_modelSegmentsAfter->pointSeparation());
261 ENGAUGE_ASSERT (POINT_SEPARATION_MAX >= m_modelSegmentsAfter->
pointSeparation());
264 m_spinPointSeparation->setValue (m_modelSegmentsAfter->
pointSeparation());
265 m_spinMinLength->setValue (m_modelSegmentsAfter->
minLength());
266 m_chkFillCorners->setChecked (m_modelSegmentsAfter->
fillCorners ());
267 m_spinLineWidth->setValue (m_modelSegmentsAfter->
lineWidth());
269 int indexLineColor = m_cmbLineColor->findData(QVariant (m_modelSegmentsAfter->
lineColor()));
270 ENGAUGE_ASSERT (indexLineColor >= 0);
271 m_cmbLineColor->setCurrentIndex(indexLineColor);
281 void DlgSettingsSegments::slotFillCorners (
int state)
283 LOG4CPP_INFO_S ((*mainCat)) <<
"DlgSettingsSegments::slotFillCorner";
290 void DlgSettingsSegments::slotLineColor (
const QString &)
292 LOG4CPP_INFO_S ((*mainCat)) <<
"DlgSettingsSegments::slotLineColor";
294 m_modelSegmentsAfter->
setLineColor((ColorPalette) m_cmbLineColor->currentData().toInt());
299 void DlgSettingsSegments::slotLineWidth (
int lineWidth)
301 LOG4CPP_INFO_S ((*mainCat)) <<
"DlgSettingsSegments::slotLineWidth";
308 void DlgSettingsSegments::slotMinLength (
const QString &minLength)
310 LOG4CPP_INFO_S ((*mainCat)) <<
"DlgSettingsSegments::slotMinLength";
312 m_modelSegmentsAfter->
setMinLength(minLength.toDouble());
317 void DlgSettingsSegments::slotPointSeparation (
const QString &pointSeparation)
319 LOG4CPP_INFO_S ((*mainCat)) <<
"DlgSettingsSegments::slotPointSeparation";
326 void DlgSettingsSegments::updateControls()
331 void DlgSettingsSegments::updatePreview()
333 LOG4CPP_INFO_S ((*mainCat)) <<
"DlgSettingsSegments::updatePreview"
334 <<
" loading=" << (m_loading ?
"true" :
"false");
336 const QString ARBITRARY_IDENTIFIER (
"");
337 const QColor COLOR (Qt::blue);
338 const int RADIUS = 5;
346 segmentFactory.clearSegments (m_segments);
349 segmentFactory.makeSegments (createPreviewImage(),
350 *m_modelSegmentsAfter,
354 QList<Segment*>::iterator itrS;
355 for (itrS = m_segments.begin(); itrS != m_segments.end(); itrS++) {
365 QPolygonF polygon = pointStyle.polygon();
366 QList<QPoint> points = segmentFactory.fillPoints (*m_modelSegmentsAfter,
368 QList<QPoint>::iterator itrP;
369 for (itrP = points.begin(); itrP != points.end(); itrP++) {
372 ARBITRARY_IDENTIFIER,
377 m_points.push_back (graphicsPoint);
ColorPalette lineColor() const
Get method for line color.
void setLineColor(ColorPalette lineColor)
Set method for line color.
void setMinLength(double minLength)
Set method for min length.
void setCmdMediator(CmdMediator &cmdMediator)
Store CmdMediator for easy access by the leaf class.
double pointSeparation() const
Get method for point separation.
virtual void load(CmdMediator &cmdMediator)
Load settings from Document.
void setLineWidth(double lineWidth)
Set method for line width.
Factory class for Segment objects.
void slotHover(bool hover)
Slot for hover enter/leave events in the associated SegmentLines.
Class that modifies QGraphicsView to automatically expand/shrink the view to fit the window...
void setFillCorners(bool fillCorners)
Set method for fill corners.
Details for a specific Point.
Selectable piecewise-defined line that follows a filtered line in the image.
double lineWidth() const
Get method for line width.
Graphics item for drawing a circular or polygonal Point.
void finishPanel(QWidget *subPanel)
Add Ok and Cancel buttons to subpanel to get the whole dialog.
static int MINIMUM_PREVIEW_HEIGHT
Dialog layout constant that guarantees preview has sufficent room.
Command for DlgSettingsSegments.
void enableOk(bool enable)
Let leaf subclass control the Ok button.
void populateColorComboWithTransparent(QComboBox &combo)
Add colors in color palette to combobox, with transparent entry at end.
DlgSettingsSegments(MainWindow &mainWindow)
Single constructor.
double minLength() const
Get method for min length.
Model for DlgSettingsSegments and CmdSettingsSegments.
Abstract base class for all Settings dialogs.
virtual void handleOk()
Process slotOk.
virtual QWidget * createSubPanel()
Create dialog-specific panel to which base class will add Ok and Cancel buttons.
void setPointSeparation(double pointSeparation)
Set method for point separation.
MainWindow & mainWindow()
Get method for MainWindow.
Main window consisting of menu, graphics scene, status bar and optional toolbars as a Single Document...
CmdMediator & cmdMediator()
Provide access to Document information wrapped inside CmdMediator.
bool fillCorners() const
Get method for fill corners.