Merge pull request #365 from GursheenK/expected-progress-bars

feat: expected progress bars

dist/frappe-gantt.css

@@ -39,7 +39,10 @@
   user-select: none;
 }
 .gantt .bar-progress {
-  fill: #a3a3ff;
+  fill: #acacfa;
+}
+.gantt .bar-expected-progress {
+  fill: #c4c4e9;
 }
 .gantt .bar-invalid {
   fill: transparent;
@@ -76,7 +79,7 @@
   fill: #a9b5c1;
 }
 .gantt .bar-wrapper:hover .bar-progress {
-  fill: #8a8aff;
+  fill: #9494f9;
 }
 .gantt .bar-wrapper:hover .handle {
   visibility: visible;
@@ -86,7 +89,7 @@
   fill: #a9b5c1;
 }
 .gantt .bar-wrapper.active .bar-progress {
-  fill: #8a8aff;
+  fill: #9494f9;
 }
 .gantt .lower-text, .gantt .upper-text {
   font-size: 12px;
@@ -117,7 +120,7 @@
   border-radius: 3px;
 }
 .gantt-container .popup-wrapper .title {
-  border-bottom: 3px solid #a3a3ff;
+  border-bottom: 3px solid #acacfa;
   padding: 10px;
 }
 .gantt-container .popup-wrapper .subtitle {

src/bar.js

@@ -23,12 +23,10 @@ export default class Bar {
     prepare_values() {
         this.invalid = this.task.invalid;
         this.height = this.gantt.options.bar_height;
-        this.x = this.compute_x();
-        this.y = this.compute_y();
+        this.compute_x();
+        this.compute_y();
+        this.compute_duration();
         this.corner_radius = this.gantt.options.bar_corner_radius;
-        this.duration =
-            date_utils.diff(this.task._end, this.task._start, 'hour') /
-            this.gantt.options.step;
         this.width = this.gantt.options.column_width * this.duration;
         this.progress_width =
             this.gantt.options.column_width *
@@ -66,8 +64,20 @@ export default class Bar {
         };
     }
 
+    prepare_expected_progress_values() {
+        this.compute_expected_progress();
+        this.expected_progress_width =
+            this.gantt.options.column_width *
+                this.duration *
+                (this.expected_progress / 100) || 0;
+    }
+
     draw() {
         this.draw_bar();
+        if (this.gantt.options.show_expected_progress) {
+            this.prepare_expected_progress_values();
+            this.draw_expected_progress_bar();
+        }
         this.draw_progress_bar();
         this.draw_label();
         this.draw_resize_handles();
@@ -92,6 +102,22 @@ export default class Bar {
         }
     }
 
+    draw_expected_progress_bar() {
+        if (this.invalid) return;
+        this.$expected_bar_progress = createSVG('rect', {
+            x: this.x,
+            y: this.y,
+            width: this.expected_progress_width,
+            height: this.height,
+            rx: this.corner_radius,
+            ry: this.corner_radius,
+            class: 'bar-expected-progress',
+            append_to: this.bar_group,
+        });
+
+        animateSVG(this.$expected_bar_progress, 'width', 0, this.expected_progress_width);
+    }
+
     draw_progress_bar() {
         if (this.invalid) return;
         this.$bar_progress = createSVG('rect', {
@@ -241,6 +267,11 @@ export default class Bar {
         }
         this.update_label_position();
         this.update_handle_position();
+        if (this.gantt.options.show_expected_progress){
+            this.date_changed();
+            this.compute_duration();
+            this.update_expected_progressbar_position();
+        }
         this.update_progressbar_position();
         this.update_arrow_position();
     }
@@ -303,6 +334,11 @@ export default class Bar {
         return parseInt(progress, 10);
     }
 
+    compute_expected_progress() {
+        this.expected_progress = date_utils.diff(date_utils.today(), this.task._start, 'hour') / this.gantt.options.step;
+        this.expected_progress = ((this.expected_progress < this.duration) ? this.expected_progress : this.duration) * 100 / this.duration;
+    }
+
     compute_x() {
         const { step, column_width } = this.gantt.options;
         const task_start = this.task._start;
@@ -315,17 +351,22 @@ export default class Bar {
             const diff = date_utils.diff(task_start, gantt_start, 'day');
             x = (diff * column_width) / 30;
         }
-        return x;
+        this.x = x;
     }
 
     compute_y() {
-        return (
+        this.y = (
             this.gantt.options.header_height +
             this.gantt.options.padding +
             this.task._index * (this.height + this.gantt.options.padding)
         );
     }
 
+    compute_duration() {
+        this.duration = date_utils.diff(this.task._end, this.task._start, 'hour') /
+            this.gantt.options.step;
+    }
+
     get_snap_position(dx) {
         let odx = dx,
             rem,
@@ -367,6 +408,16 @@ export default class Bar {
         return element;
     }
 
+    update_expected_progressbar_position() {
+        if (this.invalid) return;
+        this.$expected_bar_progress.setAttribute('x', this.$bar.getX());
+        this.compute_expected_progress();
+        this.$expected_bar_progress.setAttribute(
+            'width',
+            this.gantt.options.column_width * this.duration * (this.expected_progress / 100) || 0
+        );
+    }
+
     update_progressbar_position() {
         if (this.invalid) return;
         this.$bar_progress.setAttribute('x', this.$bar.getX());

src/gantt.scss

@@ -7,8 +7,9 @@ $light-yellow: #fcf8e3 !default;
 $text-muted: #666 !default;
 $text-light: #555 !default;
 $text-color: #333 !default;
-$blue: #a3a3ff !default;
+$blue: #acacfa !default;
 $handle-color: #ddd !default;
+$light-blue: #c4c4e9 !default;
 
 .gantt {
 	.grid-background {
@@ -71,6 +72,9 @@ $handle-color: #ddd !default;
 	.bar-progress {
 		fill: $blue;
 	}
+	.bar-expected-progress {
+		fill: $light-blue;
+	}
 	.bar-invalid {
 		fill: transparent;
 		stroke: $bar-stroke;