MantisGraph, adjust width of some graphs.

Some graphs pages only display one graph. When they are displayed in the
full page width, the 5:4 aspect ratio doesn't fit in the usual screen
sizes.
Make them double wide, but keep the height, to mantain the constant fill
area similar to those pages with side by side graphs.

plugins/MantisGraph/core/graph_api.php

@@ -128,20 +128,32 @@ function graph_status_colors_to_colors() {
  * @param string  $p_title        Title.
  * @param string  $p_series_name  The name of the data series.
  * @param string  $p_color        The bar color.
+ * @param integer $p_wfactor      Width factor for graph chart. Eg: 2 to make it double wide
  * @return void
  */
-function graph_bar( array $p_metrics, $p_title = '', $p_series_name, $p_color = '#fcbdbd' ) {
+function graph_bar( array $p_metrics, $p_title = '', $p_series_name, $p_color = null, $p_wfactor = null ) {
 	static $s_id = 0;
 
+	# set defaults
+	if( !$p_color ) {
+		$p_color = '#fcbdbd';
+	}
+	if( !$p_wfactor ) {
+		$p_wfactor = 1;
+	}
+
 	$s_id++;
 	$t_labels = array_keys( $p_metrics );
 	$t_js_labels = graph_strings_array( $t_labels );
 
 	$t_values = array_values( $p_metrics );
 	$t_js_values = graph_numeric_array( $t_values );
 
+	$t_width = 500 * $p_wfactor;
+	$t_height = 400;
+
 ?>
-	<canvas id="barchart<?php echo $s_id ?>" width="500" height="400"
+	<canvas id="barchart<?php echo $s_id ?>" width="<?php echo $t_width ?>" height="<?php echo $t_height ?>"
 		data-labels="[<?php echo htmlspecialchars( $t_js_labels, ENT_QUOTES ) ?>]"
 		data-values="[<?php echo $t_js_values ?>]" />
 <?php
@@ -181,11 +193,17 @@ function graph_pie( array $p_metrics, $p_title = '' ) {
  * Cumulative line graph
  *
  * @param array   $p_metrics      Graph Data.
+ * @param integer $p_wfactor      Width factor for graph chart. Eg: 2 to make it double wide
  * @return void
  */
-function graph_cumulative_bydate( array $p_metrics ) {
+function graph_cumulative_bydate( array $p_metrics, $p_wfactor = null ) {
 	static $s_id = 0;
 
+	# set defaults
+	if( !$p_wfactor ) {
+		$p_wfactor = 1;
+	}
+
 	$s_id++;
 
 	$t_labels = array_keys( $p_metrics[0] );
@@ -209,8 +227,10 @@ function graph_cumulative_bydate( array $p_metrics ) {
 	$t_legend_resolved = plugin_lang_get( 'legend_resolved' );
 	$t_legend_still_open = plugin_lang_get( 'legend_still_open' );
 
+	$t_width = 500 * $p_wfactor;
+	$t_height = 400;
 ?>
-	<canvas id="linebydate<?php echo $s_id ?>" width="500" height="400"
+	<canvas id="linebydate<?php echo $s_id ?>" width="<?php echo $t_width ?>" height="<?php echo $t_height ?>"
 			data-labels="[<?php echo htmlspecialchars( $t_js_labels, ENT_QUOTES ) ?>]"
 			data-opened-label="<?php echo $t_legend_opened ?>"
 			data-opened-values="[<?php echo $t_opened_values ?>]"

plugins/MantisGraph/pages/issues_trend_graph.php

@@ -47,7 +47,7 @@
 <?php
 			$t_metrics = create_cumulative_bydate( $t_filter );
 			if ( $t_metrics != null ) {
-				graph_cumulative_bydate( $t_metrics );
+				graph_cumulative_bydate( $t_metrics, 2 /*wfactor*/ );
 			}
 ?>
 	</div>

plugins/MantisGraph/pages/reporter_graph.php

@@ -55,7 +55,7 @@
             </div>
 <?php
             $t_metrics = create_reporter_summary( $t_filter );
-            graph_bar( $t_metrics, lang_get( 'by_reporter' ), $t_series_name );
+            graph_bar( $t_metrics, lang_get( 'by_reporter' ), $t_series_name, null, 2 /*wfactor*/ );
 ?>
         </div>
     </div>