QGIS API Documentation  2.11.0-Master
qgscolorwidgetwrapper.cpp
Go to the documentation of this file.
1 /***************************************************************************
2  qgscolorwidgetwrapper.cpp
3  --------------------------------------
4  Date : 5.1.2014
5  Copyright : (C) 2014 Matthias Kuhn
6  Email : matthias at opengis dot ch
7  ***************************************************************************
8  * *
9  * This program is free software; you can redistribute it and/or modify *
10  * it under the terms of the GNU General Public License as published by *
11  * the Free Software Foundation; either version 2 of the License, or *
12  * (at your option) any later version. *
13  * *
14  ***************************************************************************/
15 
16 #include "qgscolorwidgetwrapper.h"
17 
19  : QgsEditorWidgetWrapper( vl, fieldIdx, editor, parent )
20  , mColorButton( NULL )
21 {
22 }
23 
24 
26 {
27  QVariant v;
28 
29  if ( mColorButton )
30  v = mColorButton->color();
31 
32  return v;
33 }
34 
36 {
37  QgsColorButtonV2* button = new QgsColorButtonV2( parent );
38  button->setContext( QString( "editor" ) );
39  return button;
40 }
41 
43 {
44  mColorButton = qobject_cast<QgsColorButtonV2*>( editor );
45 
46  connect( mColorButton, SIGNAL( colorChanged( QColor ) ), this, SLOT( valueChanged() ) );
47 }
48 
50 {
51  return mColorButton;
52 }
53 
55 {
56  if ( mColorButton )
57  mColorButton->setColor( QColor( value.toString() ) );
58 }
A cross platform button subclass for selecting colors.
void valueChanged()
Will call the value() method to determine the emitted value.
Manages an editor widget Widget and wrapper share the same parent.
QgsColorWidgetWrapper(QgsVectorLayer *vl, int fieldIdx, QWidget *editor=0, QWidget *parent=0)
void setValue(const QVariant &value) override
void setContext(const QString context)
Sets the context string for the color button.
bool valid() override
Return true if the widget has been properly initialized.
QVariant value() override
Will be used to access the widget's value.
void setColor(const QColor &color)
Sets the current color for the button.
void initWidget(QWidget *editor) override
This method should initialize the editor widget with runtime data.
bool connect(const QObject *sender, const char *signal, const QObject *receiver, const char *method, Qt::ConnectionType type)
Represents a vector layer which manages a vector based data sets.
QString toString() const
QWidget * createWidget(QWidget *parent) override
This method should create a new widget with the provided parent.