viscal

commit 7f7e339c2a087c685b841fd572eb91a91e48a227
parent 4f6087d37cb22082261d3ab5c170c19a92a107ed
Author: William Casarin <bill@casarin.me>
Date:   Fri, 13 Jan 2017 08:37:56 -0800

Initial commit

Diffstat:
M
Event.vala
 | 
2
++
M
calendar.vala
 | 
81
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--------------

2 files changed, 69 insertions(+), 14 deletions(-)
diff --git a/Event.vala b/Event.vala
@@ -1,4 +1,6 @@
 
 public class Event {
 	public DateTime start;
+	public DateTime end;
+	public string title;
 }
diff --git a/calendar.vala b/calendar.vala
@@ -5,7 +5,11 @@ using Cairo;
 public class Calendar : Gtk.Window {
 
     private const int SIZE = 30;
-    private const int GAP = 20;
+    private const double MIN_EVENT_HEIGHT = 10.0;
+    private const int GAP = 0;
+    private const int LMARGIN = 40;
+    private const int TXTPAD = 11;
+    private const int EVPAD = 2;
 	private const double dashed[] = {1.0};
 
     public Calendar () {
@@ -21,25 +25,68 @@ public class Calendar : Gtk.Window {
         add (drawing_area);
     }
 
-    private void draw_event (Context ctx, Event ev) {
+	private double time_location (DateTime d) {
+		int doy = d.get_day_of_year();
+		int hour = d.get_hour();
+		int minute = d.get_minute();
+		int second = d.get_second();
+
+		int seconds =
+			(hour * 60 * 60) + (minute * 60) + second;
+
+		return ((double)seconds / 86400.0);
+	}
+
+    private void draw_event (Context ctx, int sx, int sy, Event ev, int width, int height) {
+		double sloc = time_location(ev.start);
+		double eloc = time_location(ev.end);
+		double dloc = eloc - sloc;
+		double eheight = dloc * height;
+
+		// double height = Math.fmin(, MIN_EVENT_HEIGHT);
+        // stdout.printf("sloc %f eloc %f dloc %f eheight %f\n",
+		// 			  sloc, eloc, dloc, eheight);
+
+		ctx.move_to(sx, (sloc * height)+sy);
+		ctx.set_source_rgba(1.0, 0, 0, 0.25);
+		rectangle(ctx, (double)width, eheight);
+		ctx.fill();
+		ctx.set_source_rgb(0.5, 0, 0);
+		ctx.stroke();
+		ctx.move_to(sx + EVPAD, (sloc * height)+EVPAD+TXTPAD);
+		ctx.show_text(ev.title);
 	}
 
-	private void draw_hours (Context ctx, int width, int height) {
-		double hour_height = ((double)height) / 24.0;
-		const double col = 0.35;
+	private void draw_hours (Context ctx, int sy, int width, int height) {
+		double section_height = ((double)height) / 48.0;
+		char[] buffer;
+		const double col = 0.4;
         ctx.set_source_rgb (col, col, col);
 		ctx.set_line_width (1);
-		for (int hour = 1; hour < 24; hour++) {
-			double y = ((double)hour) * hour_height;
-			ctx.move_to (GAP, y+GAP);
+
+		for (int section = 0; section < 48; section++) {
+			int minutes = section * 30;
+			double y = sy + ((double)section) * section_height;
+			ctx.move_to (0, y);
 			ctx.rel_line_to (width, 0);
 
-			if (hour % 2 == 0)
-			  ctx.set_dash (dashed, 0);
-			else
+			if (section % 2 == 0)
 			  ctx.set_dash ({}, 0);
+			else
+			  ctx.set_dash (dashed, 0);
 
 			ctx.stroke();
+
+			bool onhour = ((minutes / 30) % 2) == 0;
+			if (onhour) {
+			  var t = Time();
+			  t.minute = 0;
+			  t.hour = minutes / 60;
+			  var strtime = t.format("%H:%M");
+			  // TODO: text extents for proper time placement?
+			  ctx.move_to(1.0, y+TXTPAD);
+			  ctx.show_text(strtime);
+			}
 		}
 	}
 
@@ -51,14 +98,20 @@ public class Calendar : Gtk.Window {
 
     private bool on_draw (Widget da, Context ctx) {
 		int width, height;
+		var ev = new Event();
+		ev.title = "Coding this";
+		ev.start = new DateTime.now_local();
+		ev.end = new DateTime.now_local().add_hours(1);
 		this.get_size(out width, out height);
-		width -= GAP*2; height -= GAP*2;
+		width -= LMARGIN+GAP; height -= GAP*2;
 
-		ctx.move_to (GAP, GAP);
+		ctx.move_to(LMARGIN, GAP);
 		draw_background(ctx, width, height);
 
 		// ctx.move_to (GAP, GAP);
-		draw_hours(ctx, width, height);
+		draw_hours(ctx, GAP, width+LMARGIN, height);
+
+		draw_event(ctx, LMARGIN, GAP, ev, width, height);
 
         return true;
     }