Engauge Digitizer 2
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TutorialStateColorFilter.cpp
Go to the documentation of this file.
1/******************************************************************************************************
2 * (C) 2014 markummitchell@github.com. This file is part of Engauge Digitizer, which is released *
3 * under GNU General Public License version 2 (GPLv2) or (at your option) any later version. See file *
4 * LICENSE or go to gnu.org/licenses for details. Distribution requires prior written permission. *
5 ******************************************************************************************************/
6
7#include "Logger.h"
8#include <qdebug.h>
9#include <QGraphicsPixmapItem>
10#include <QGraphicsScene>
11#include <QGraphicsView>
12#include "TutorialButton.h"
13#include "TutorialDlg.h"
16
19 m_title (nullptr),
20 m_background (nullptr),
21 m_text0 (nullptr),
22 m_text1 (nullptr),
23 m_text2 (nullptr),
24 m_text3 (nullptr),
25 m_text4 (nullptr),
26 m_back (nullptr)
27{
28 LOG4CPP_INFO_S ((*mainCat)) << "TutorialStateColorFilter::TutorialStateColorFilter";
29}
30
32{
33 LOG4CPP_INFO_S ((*mainCat)) << "TutorialStateColorFilter::begin ()";
34
35 context().tutorialDlg().scene().clear ();
36
37 m_title = createTitle (tr ("Color Filter"));
38 m_background = createPixmapItem (":/engauge/img/panel_color_filter.png",
39 QPoint (0, 30));
40 m_text0 = createTextItem (tr ("Each curve has Color Filter settings that\n"
41 "are applied in Segment Fill mode. For\n"
42 "black lines the defaults work well, but for\n"
43 "colored lines the settings can be improved."),
44 QPoint (260, 30));
45 m_text1 = createTextItem (tr ("Step 1 - Select the Settings / Color\n"
46 "Filter menu option."),
47 QPoint (285, 115));
48 m_text2 = createTextItem (tr ("Step 2 - Select the curve that will\n"
49 "be given the new settings."),
50 QPoint (285, 165));
51 m_text3 = createTextItem (tr ("Step 3 - Select the mode. Intensity is\n"
52 "suggested for uncolored lines, and Hue\n"
53 "is suggested for colored lines."),
54 QPoint (285, 210));
55 m_text4 = createTextItem (tr ("Step 4 - Adjust the included range by\n"
56 "dragging the green handles, until the\n"
57 "curve is clear in the preview window\n"
58 "below. The graph shows a histogram\n"
59 "distribution of the values underneath.\n"
60 "Click Ok when finished."),
61 QPoint (285, 280));
62
63 QSize backgroundSize = context().tutorialDlg().backgroundSize();
64
65 m_back = new TutorialButton (tr ("Back"),
66 context().tutorialDlg().scene());
67 m_back->setGeometry (QPoint (backgroundSize.width () / 2 - m_back->size().width () / 2,
68 backgroundSize.height() - buttonMargin() - m_back->size().height()));
69 connect (m_back, SIGNAL (signalTriggered ()), this, SLOT (slotBack ()));
70}
71
73{
74 LOG4CPP_INFO_S ((*mainCat)) << "TutorialStateColorFilter::end ()";
75
76 // It is not safe to remove and deallocate items here since an active TutorialButton
77 // may be on the stack. So we clear the scene as the first step in the next begin()
78}
79
log4cpp::Category * mainCat
Definition Logger.cpp:14
@ TUTORIAL_STATE_CURVE_SELECTION
Show a button with text for clicking ion. The button is implemented using layering of two graphics it...
QGraphicsScene & scene()
Single scene the covers the entire tutorial dialog.
QSize backgroundSize() const
Make geometry available for layout.
TutorialStateAbstractBase(TutorialStateContext &context)
Single constructor.
QGraphicsTextItem * createTitle(const QString &text)
Factory method for title items.
QGraphicsTextItem * createTextItem(const QString &text, const QPoint &pos)
Factory method for text items.
TutorialStateContext & context()
Context class for the tutorial state machine.
QGraphicsPixmapItem * createPixmapItem(const QString &resource, const QPoint &pos)
Factory method for pixmap items.
int buttonMargin() const
Buttons are placed up against bottom side, and left or right side, separated by this margin.
TutorialStateColorFilter(TutorialStateContext &context)
Single constructor.
virtual void begin()
Transition into this state.
void slotBack()
Slot called to return to previous panel.
virtual void end()
Transition out of this state.
Context class for tutorial state machine.
void requestDelayedStateTransition(TutorialState tutorialState)
Request a transition to the specified state from the current state.
TutorialDlg & tutorialDlg()
Access to tutorial dialogs and its scene.
#define LOG4CPP_INFO_S(logger)
Definition convenience.h:18