eric7/Documentation/Source/eric7.Graphics.PixmapDiagram.html

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<h1>eric7.Graphics.PixmapDiagram</h1>

<p>
Module implementing a dialog showing a pixmap.
</p>
<h3>Global Attributes</h3>

<table>
<tr><td>None</td></tr>
</table>
<h3>Classes</h3>

<table>

<tr>
<td><a href="#PixmapDiagram">PixmapDiagram</a></td>
<td>Class implementing a dialog showing a pixmap.</td>
</tr>
</table>
<h3>Functions</h3>

<table>
<tr><td>None</td></tr>
</table>
<hr />
<hr />
<a NAME="PixmapDiagram" ID="PixmapDiagram"></a>
<h2>PixmapDiagram</h2>

<p>
    Class implementing a dialog showing a pixmap.
</p>
<h3>Derived from</h3>
EricMainWindow
<h3>Class Attributes</h3>

<table>
<tr><td>ZoomLevelDefault</td></tr><tr><td>ZoomLevels</td></tr>
</table>
<h3>Class Methods</h3>

<table>
<tr><td>None</td></tr>
</table>
<h3>Methods</h3>

<table>

<tr>
<td><a href="#PixmapDiagram.__init__">PixmapDiagram</a></td>
<td>Constructor</td>
</tr>
<tr>
<td><a href="#PixmapDiagram.__adjustScrollBar">__adjustScrollBar</a></td>
<td>Private method to adjust a scrollbar by a certain factor.</td>
</tr>
<tr>
<td><a href="#PixmapDiagram.__doZoom">__doZoom</a></td>
<td>Private method to set the zoom value in percent.</td>
</tr>
<tr>
<td><a href="#PixmapDiagram.__initActions">__initActions</a></td>
<td>Private method to initialize the view actions.</td>
</tr>
<tr>
<td><a href="#PixmapDiagram.__initContextMenu">__initContextMenu</a></td>
<td>Private method to initialize the context menu.</td>
</tr>
<tr>
<td><a href="#PixmapDiagram.__initToolBars">__initToolBars</a></td>
<td>Private method to populate the toolbars with our actions.</td>
</tr>
<tr>
<td><a href="#PixmapDiagram.__levelForZoom">__levelForZoom</a></td>
<td>Private method determining the zoom level index given a zoom factor.</td>
</tr>
<tr>
<td><a href="#PixmapDiagram.__print">__print</a></td>
<td>Private slot to the actual printing.</td>
</tr>
<tr>
<td><a href="#PixmapDiagram.__printDiagram">__printDiagram</a></td>
<td>Private slot called to print the diagram.</td>
</tr>
<tr>
<td><a href="#PixmapDiagram.__printPreviewDiagram">__printPreviewDiagram</a></td>
<td>Private slot called to show a print preview of the diagram.</td>
</tr>
<tr>
<td><a href="#PixmapDiagram.__showContextMenu">__showContextMenu</a></td>
<td>Private slot to show the context menu of the listview.</td>
</tr>
<tr>
<td><a href="#PixmapDiagram.__showPixmap">__showPixmap</a></td>
<td>Private method to show a file.</td>
</tr>
<tr>
<td><a href="#PixmapDiagram.__zoom">__zoom</a></td>
<td>Private method to get the current zoom factor in percent.</td>
</tr>
<tr>
<td><a href="#PixmapDiagram.__zoomIn">__zoomIn</a></td>
<td>Private method to zoom into the pixmap.</td>
</tr>
<tr>
<td><a href="#PixmapDiagram.__zoomOut">__zoomOut</a></td>
<td>Private method to zoom out of the pixmap.</td>
</tr>
<tr>
<td><a href="#PixmapDiagram.__zoomReset">__zoomReset</a></td>
<td>Private method to reset the zoom value.</td>
</tr>
<tr>
<td><a href="#PixmapDiagram.event">event</a></td>
<td>Public method handling events.</td>
</tr>
<tr>
<td><a href="#PixmapDiagram.gestureEvent">gestureEvent</a></td>
<td>Protected method handling gesture events.</td>
</tr>
<tr>
<td><a href="#PixmapDiagram.getDiagramName">getDiagramName</a></td>
<td>Public method to retrieve a name for the diagram.</td>
</tr>
<tr>
<td><a href="#PixmapDiagram.getStatus">getStatus</a></td>
<td>Public method to retrieve the status of the canvas.</td>
</tr>
<tr>
<td><a href="#PixmapDiagram.wheelEvent">wheelEvent</a></td>
<td>Protected method to handle wheel events.</td>
</tr>
</table>
<h3>Static Methods</h3>

<table>
<tr><td>None</td></tr>
</table>

<a NAME="PixmapDiagram.__init__" ID="PixmapDiagram.__init__"></a>
<h4>PixmapDiagram (Constructor)</h4>
<b>PixmapDiagram</b>(<i>pixmap, parent=None, name=None</i>)

<p>
        Constructor
</p>
<dl>

<dt><i>pixmap</i> (str)</dt>
<dd>
filename of a graphics file to show
</dd>
<dt><i>parent</i> (QWidget)</dt>
<dd>
parent widget of the view
</dd>
<dt><i>name</i> (str)</dt>
<dd>
name of the view widget
</dd>
</dl>
<a NAME="PixmapDiagram.__adjustScrollBar" ID="PixmapDiagram.__adjustScrollBar"></a>
<h4>PixmapDiagram.__adjustScrollBar</h4>
<b>__adjustScrollBar</b>(<i>scrollBar, factor</i>)

<p>
        Private method to adjust a scrollbar by a certain factor.
</p>
<dl>

<dt><i>scrollBar</i> (QScrollBar)</dt>
<dd>
reference to the scrollbar object
</dd>
<dt><i>factor</i> (float)</dt>
<dd>
factor to adjust by
</dd>
</dl>
<a NAME="PixmapDiagram.__doZoom" ID="PixmapDiagram.__doZoom"></a>
<h4>PixmapDiagram.__doZoom</h4>
<b>__doZoom</b>(<i>value</i>)

<p>
        Private method to set the zoom value in percent.
</p>
<dl>

<dt><i>value</i> (int)</dt>
<dd>
zoom value in percent
</dd>
</dl>
<a NAME="PixmapDiagram.__initActions" ID="PixmapDiagram.__initActions"></a>
<h4>PixmapDiagram.__initActions</h4>
<b>__initActions</b>(<i></i>)

<p>
        Private method to initialize the view actions.
</p>
<a NAME="PixmapDiagram.__initContextMenu" ID="PixmapDiagram.__initContextMenu"></a>
<h4>PixmapDiagram.__initContextMenu</h4>
<b>__initContextMenu</b>(<i></i>)

<p>
        Private method to initialize the context menu.
</p>
<a NAME="PixmapDiagram.__initToolBars" ID="PixmapDiagram.__initToolBars"></a>
<h4>PixmapDiagram.__initToolBars</h4>
<b>__initToolBars</b>(<i></i>)

<p>
        Private method to populate the toolbars with our actions.
</p>
<a NAME="PixmapDiagram.__levelForZoom" ID="PixmapDiagram.__levelForZoom"></a>
<h4>PixmapDiagram.__levelForZoom</h4>
<b>__levelForZoom</b>(<i>zoom</i>)

<p>
        Private method determining the zoom level index given a zoom factor.
</p>
<dl>

<dt><i>zoom</i> (int)</dt>
<dd>
zoom factor
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
index of zoom factor
</dd>
</dl>
<dl>
<dt>Return Type:</dt>
<dd>
int
</dd>
</dl>
<a NAME="PixmapDiagram.__print" ID="PixmapDiagram.__print"></a>
<h4>PixmapDiagram.__print</h4>
<b>__print</b>(<i>printer</i>)

<p>
        Private slot to the actual printing.
</p>
<dl>

<dt><i>printer</i> (QPrinter)</dt>
<dd>
reference to the printer object
</dd>
</dl>
<a NAME="PixmapDiagram.__printDiagram" ID="PixmapDiagram.__printDiagram"></a>
<h4>PixmapDiagram.__printDiagram</h4>
<b>__printDiagram</b>(<i></i>)

<p>
        Private slot called to print the diagram.
</p>
<a NAME="PixmapDiagram.__printPreviewDiagram" ID="PixmapDiagram.__printPreviewDiagram"></a>
<h4>PixmapDiagram.__printPreviewDiagram</h4>
<b>__printPreviewDiagram</b>(<i></i>)

<p>
        Private slot called to show a print preview of the diagram.
</p>
<a NAME="PixmapDiagram.__showContextMenu" ID="PixmapDiagram.__showContextMenu"></a>
<h4>PixmapDiagram.__showContextMenu</h4>
<b>__showContextMenu</b>(<i>coord</i>)

<p>
        Private slot to show the context menu of the listview.
</p>
<dl>

<dt><i>coord</i> (QPoint)</dt>
<dd>
the position of the mouse pointer
</dd>
</dl>
<a NAME="PixmapDiagram.__showPixmap" ID="PixmapDiagram.__showPixmap"></a>
<h4>PixmapDiagram.__showPixmap</h4>
<b>__showPixmap</b>(<i>filename</i>)

<p>
        Private method to show a file.
</p>
<dl>

<dt><i>filename</i> (str)</dt>
<dd>
name of the file to be shown
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
flag indicating success
</dd>
</dl>
<dl>
<dt>Return Type:</dt>
<dd>
bool
</dd>
</dl>
<a NAME="PixmapDiagram.__zoom" ID="PixmapDiagram.__zoom"></a>
<h4>PixmapDiagram.__zoom</h4>
<b>__zoom</b>(<i></i>)

<p>
        Private method to get the current zoom factor in percent.
</p>
<dl>
<dt>Return:</dt>
<dd>
current zoom factor in percent
</dd>
</dl>
<dl>
<dt>Return Type:</dt>
<dd>
int
</dd>
</dl>
<a NAME="PixmapDiagram.__zoomIn" ID="PixmapDiagram.__zoomIn"></a>
<h4>PixmapDiagram.__zoomIn</h4>
<b>__zoomIn</b>(<i></i>)

<p>
        Private method to zoom into the pixmap.
</p>
<a NAME="PixmapDiagram.__zoomOut" ID="PixmapDiagram.__zoomOut"></a>
<h4>PixmapDiagram.__zoomOut</h4>
<b>__zoomOut</b>(<i></i>)

<p>
        Private method to zoom out of the pixmap.
</p>
<a NAME="PixmapDiagram.__zoomReset" ID="PixmapDiagram.__zoomReset"></a>
<h4>PixmapDiagram.__zoomReset</h4>
<b>__zoomReset</b>(<i></i>)

<p>
        Private method to reset the zoom value.
</p>
<a NAME="PixmapDiagram.event" ID="PixmapDiagram.event"></a>
<h4>PixmapDiagram.event</h4>
<b>event</b>(<i>evt</i>)

<p>
        Public method handling events.
</p>
<dl>

<dt><i>evt</i> (QEvent)</dt>
<dd>
reference to the event
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
flag indicating, if the event was handled
</dd>
</dl>
<dl>
<dt>Return Type:</dt>
<dd>
bool
</dd>
</dl>
<a NAME="PixmapDiagram.gestureEvent" ID="PixmapDiagram.gestureEvent"></a>
<h4>PixmapDiagram.gestureEvent</h4>
<b>gestureEvent</b>(<i>evt</i>)

<p>
        Protected method handling gesture events.
</p>
<dl>

<dt><i>evt</i> (QGestureEvent)</dt>
<dd>
reference to the gesture event
</dd>
</dl>
<a NAME="PixmapDiagram.getDiagramName" ID="PixmapDiagram.getDiagramName"></a>
<h4>PixmapDiagram.getDiagramName</h4>
<b>getDiagramName</b>(<i></i>)

<p>
        Public method to retrieve a name for the diagram.
</p>
<dl>
<dt>Return:</dt>
<dd>
name for the diagram
</dd>
</dl>
<dl>
<dt>Return Type:</dt>
<dd>
str
</dd>
</dl>
<a NAME="PixmapDiagram.getStatus" ID="PixmapDiagram.getStatus"></a>
<h4>PixmapDiagram.getStatus</h4>
<b>getStatus</b>(<i></i>)

<p>
        Public method to retrieve the status of the canvas.
</p>
<dl>
<dt>Return:</dt>
<dd>
flag indicating a successful pixmap loading
</dd>
</dl>
<dl>
<dt>Return Type:</dt>
<dd>
bool
</dd>
</dl>
<a NAME="PixmapDiagram.wheelEvent" ID="PixmapDiagram.wheelEvent"></a>
<h4>PixmapDiagram.wheelEvent</h4>
<b>wheelEvent</b>(<i>evt</i>)

<p>
        Protected method to handle wheel events.
</p>
<dl>

<dt><i>evt</i> (QWheelEvent)</dt>
<dd>
reference to the wheel event
</dd>
</dl>
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