Added the possibility to specify a period in the chart.

This allows to set a period start and end date and a color, which will
result in painting a day line (like the current day indicator) at the
start and end date. Doing this a user knows in which date range he is
allowed to move events.

9 files changed, 75 insertions, 4 deletions

diff --git a/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/AbstractColorManager.java b/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/AbstractColorManager.java
index 82d2f4f..1d12d5e 100644
--- a/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/AbstractColorManager.java
+++ b/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/AbstractColorManager.java
@@ -321,4 +321,9 @@ public abstract class AbstractColorManager implements IColorManager {
     public Color getVerticalInsertMarkerColor() {	
         return getOriginalLocationColor();
     }
+    
+	public Color getPeriodLineColor() {
+        return ColorCache.getColor(255, 0, 0);
+	}
+
 }
diff --git a/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/AbstractSettings.java b/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/AbstractSettings.java
index 2447ffe..4365c0c 100644
--- a/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/AbstractSettings.java
+++ b/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/AbstractSettings.java
@@ -506,4 +506,11 @@ public abstract class AbstractSettings implements ISettings {
     public boolean scrollChartVerticallyOnMouseWheel() {
     	return true;
     }
+    public Calendar getPeriodStart() {
+    	return null;
+    }
+    
+    public Calendar getPeriodEnd() {
+    	return null;
+    }
 }
diff --git a/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/GanttComposite.java b/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/GanttComposite.java
index 24c0510..363f957 100644
--- a/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/GanttComposite.java
+++ b/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/GanttComposite.java
@@ -132,6 +132,8 @@ public final class GanttComposite extends Canvas implements MouseListener, Mouse
     // various colors used.. all set in initColors()
     private Color                         _lineTodayColor;
 
+    private Color                         _linePeriodColor;
+
     private Color                         _lineColor;
 
     private Color                         _lineWkDivColor;
@@ -624,6 +626,7 @@ public final class GanttComposite extends Canvas implements MouseListener, Mouse
 
     private void initColors() {
         _lineTodayColor = _colorManager.getTodayLineColor();
+        _linePeriodColor = _colorManager.getPeriodLineColor();
         _lineColor = _colorManager.getLineColor();
         _textColor = _colorManager.getTextColor();
         _satTextColor = _colorManager.getSaturdayTextColor();
@@ -2101,7 +2104,20 @@ public final class GanttComposite extends Canvas implements MouseListener, Mouse
             }
 
             final Calendar today = Calendar.getInstance(_defaultLocale);
-            drawTodayLine(gc, bounds, getStartingXFor(today), today.get(Calendar.DAY_OF_WEEK));
+            drawTodayLine(gc, bounds, getStartingXFor(today), today.get(Calendar.DAY_OF_WEEK), _lineTodayColor);
+            
+            if (_settings.getPeriodStart() != null) {
+                drawTodayLine(gc, bounds, 
+                		getStartingXFor(_settings.getPeriodStart()), 
+                		_settings.getPeriodStart().get(Calendar.DAY_OF_WEEK),
+                		_linePeriodColor);
+            }
+            if (_settings.getPeriodEnd() != null) {
+                drawTodayLine(gc, bounds, 
+                		getStartingXFor(_settings.getPeriodEnd()), 
+                		_settings.getPeriodEnd().get(Calendar.DAY_OF_WEEK),
+                		_linePeriodColor);
+            }
         } else if (_currentView == ISettings.VIEW_YEAR) {
             for (int i = 0; i < _verticalLineLocations.size(); i++) {
                 gc.setForeground(_lineWkDivColor);
@@ -2111,7 +2127,20 @@ public final class GanttComposite extends Canvas implements MouseListener, Mouse
             }
 
             final Calendar today = Calendar.getInstance(_defaultLocale);
-            drawTodayLine(gc, bounds, getStartingXFor(today), today.get(Calendar.DAY_OF_WEEK));
+            drawTodayLine(gc, bounds, getStartingXFor(today), today.get(Calendar.DAY_OF_WEEK), _lineTodayColor);
+            
+            if (_settings.getPeriodStart() != null) {
+                drawTodayLine(gc, bounds, 
+                		getStartingXFor(_settings.getPeriodStart()), 
+                		_settings.getPeriodStart().get(Calendar.DAY_OF_WEEK),
+                		_linePeriodColor);
+            }
+            if (_settings.getPeriodEnd() != null) {
+                drawTodayLine(gc, bounds, 
+                		getStartingXFor(_settings.getPeriodEnd()), 
+                		_settings.getPeriodEnd().get(Calendar.DAY_OF_WEEK),
+                		_linePeriodColor);
+            }
         }
     }
 
@@ -4157,13 +4186,13 @@ public final class GanttComposite extends Canvas implements MouseListener, Mouse
     }
 
     // draws the line showing where today's date is
-    private void drawTodayLine(final GC gc, final Rectangle bounds, final int x, final int dayOfWeek) {
+    private void drawTodayLine(final GC gc, final Rectangle bounds, final int x, final int dayOfWeek, final Color lineColor) {
         // d-day has no today
         if (_currentView == ISettings.VIEW_D_DAY) { return; }
 
         int xStart = x;
 
-        gc.setForeground(_lineTodayColor);
+        gc.setForeground(lineColor);
         gc.setLineWidth(_settings.getTodayLineWidth());
         gc.setLineStyle(_settings.getTodayLineStyle());
 
diff --git a/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/IColorManager.java b/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/IColorManager.java
index db50bb6..8b3bd50 100644
--- a/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/IColorManager.java
+++ b/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/IColorManager.java
@@ -491,4 +491,13 @@ public interface IColorManager extends IFillBackgroundColors {
 	 * @return Color
 	 */
 	Color getVerticalInsertMarkerColor();
+	
+	/**
+	 * The color used for drawing the vertical period start and end line that shows where the period
+	 * start and end dates are.
+	 * 
+	 * @return Color
+	 */
+	Color getPeriodLineColor();
+
 }
diff --git a/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/ISettings.java b/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/ISettings.java
index 602c8cc..973c33b 100644
--- a/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/ISettings.java
+++ b/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/ISettings.java
@@ -1076,4 +1076,8 @@ public interface ISettings {
      * @return true to scroll chart vertically. Default is true.
      */
     public boolean scrollChartVerticallyOnMouseWheel();
+    
+    public Calendar getPeriodStart();
+    
+    public Calendar getPeriodEnd();
 }
diff --git a/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/themes/ColorThemeGrayBlue.java b/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/themes/ColorThemeGrayBlue.java
index c357dce..a4c6993 100644
--- a/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/themes/ColorThemeGrayBlue.java
+++ b/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/themes/ColorThemeGrayBlue.java
@@ -321,4 +321,8 @@ public class ColorThemeGrayBlue implements IColorManager {
         return getOriginalLocationColor();
     }
 
+	public Color getPeriodLineColor() {
+        return ColorCache.getColor(255, 0, 0);
+	}
+
 }
diff --git a/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/themes/ColorThemeHighContrastBlack.java b/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/themes/ColorThemeHighContrastBlack.java
index 3b64bef..1796ec4 100644
--- a/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/themes/ColorThemeHighContrastBlack.java
+++ b/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/themes/ColorThemeHighContrastBlack.java
@@ -320,4 +320,9 @@ public class ColorThemeHighContrastBlack implements IColorManager {
     public Color getVerticalInsertMarkerColor() {   
         return getOriginalLocationColor();
     }
+    
+	public Color getPeriodLineColor() {
+        return ColorCache.getColor(255, 0, 0);
+	}
+
 }
diff --git a/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/themes/ColorThemeSilver.java b/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/themes/ColorThemeSilver.java
index 82a9974..34a23d9 100644
--- a/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/themes/ColorThemeSilver.java
+++ b/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/themes/ColorThemeSilver.java
@@ -321,4 +321,8 @@ public class ColorThemeSilver implements IColorManager {
         return getOriginalLocationColor();
     }
 
+	public Color getPeriodLineColor() {
+        return ColorCache.getColor(255, 0, 0);
+	}
+
 }
diff --git a/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/themes/ColorThemeWindowsBlue.java b/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/themes/ColorThemeWindowsBlue.java
index 1fb5c24..d52b6ec 100644
--- a/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/themes/ColorThemeWindowsBlue.java
+++ b/widgets/ganttchart/org.eclipse.nebula.widgets.ganttchart/src/org/eclipse/nebula/widgets/ganttchart/themes/ColorThemeWindowsBlue.java
@@ -324,4 +324,8 @@ public class ColorThemeWindowsBlue implements IColorManager {
         return getOriginalLocationColor();
     }
 
+	public Color getPeriodLineColor() {
+        return ColorCache.getColor(255, 0, 0);
+	}
+
 }