1 files changed, 355 insertions, 0 deletions

diff --git a/scripts/pybootchartgui/pybootchartgui/draw.py b/scripts/pybootchartgui/pybootchartgui/draw.py
new file mode 100644
index 0000000000..249cd2ef81
--- /dev/null
+++ b/scripts/pybootchartgui/pybootchartgui/draw.py
@@ -0,0 +1,355 @@
+import cairo
+import math
+import re
+
+# Process tree background color.
+BACK_COLOR = (1.0, 1.0, 1.0, 1.0)
+
+WHITE = (1.0, 1.0, 1.0, 1.0)
+# Process tree border color.
+BORDER_COLOR = (0.63, 0.63, 0.63, 1.0)
+# Second tick line color.
+TICK_COLOR = (0.92, 0.92, 0.92, 1.0)
+# 5-second tick line color.
+TICK_COLOR_BOLD = (0.86, 0.86, 0.86, 1.0)
+# Text color.
+TEXT_COLOR = (0.0, 0.0, 0.0, 1.0)
+
+# Font family
+FONT_NAME = "Bitstream Vera Sans"       
+# Title text font.
+TITLE_FONT_SIZE = 18
+# Default text font.
+TEXT_FONT_SIZE = 12
+# Axis label font.
+AXIS_FONT_SIZE = 11
+# Legend font.
+LEGEND_FONT_SIZE = 12
+        
+# CPU load chart color.
+CPU_COLOR = (0.40, 0.55, 0.70, 1.0)
+# IO wait chart color.
+IO_COLOR = (0.76, 0.48, 0.48, 0.5)
+# Disk throughput color.
+DISK_TPUT_COLOR = (0.20, 0.71, 0.20, 1.0)
+# CPU load chart color.
+FILE_OPEN_COLOR = (0.20, 0.71, 0.71, 1.0)
+        
+# Process border color.
+PROC_BORDER_COLOR = (0.71, 0.71, 0.71, 1.0)
+# Waiting process color.
+PROC_COLOR_D = (0.76, 0.48, 0.48, 0.125)
+# Running process color.
+PROC_COLOR_R = CPU_COLOR
+# Sleeping process color.
+PROC_COLOR_S = (0.94, 0.94, 0.94, 1.0)
+# Stopped process color.
+PROC_COLOR_T = (0.94, 0.50, 0.50, 1.0)
+# Zombie process color.
+PROC_COLOR_Z = (0.71, 0.71, 0.71, 1.0)
+# Dead process color.
+PROC_COLOR_X = (0.71, 0.71, 0.71, 0.125)
+# Paging process color.
+PROC_COLOR_W = (0.71, 0.71, 0.71, 0.125)
+
+# Process label color.
+PROC_TEXT_COLOR = (0.19, 0.19, 0.19, 1.0)
+# Process label font.
+PROC_TEXT_FONT_SIZE = 12
+
+# Signature color.
+SIG_COLOR = (0.0, 0.0, 0.0, 0.3125)
+# Signature font.
+SIG_FONT_SIZE = 14
+# Signature text.
+SIGNATURE = "http://code.google.com/p/pybootchartgui"
+        
+# Process dependency line color.
+DEP_COLOR = (0.75, 0.75, 0.75, 1.0)
+# Process dependency line stroke.
+DEP_STROKE = 1.0
+
+# Process description date format.
+DESC_TIME_FORMAT = "mm:ss.SSS"
+
+# Process states
+STATE_UNDEFINED = 0
+STATE_RUNNING   = 1
+STATE_SLEEPING  = 2
+STATE_WAITING   = 3
+STATE_STOPPED   = 4
+STATE_ZOMBIE    = 5
+
+STATE_COLORS = [(0,0,0,0), PROC_COLOR_R, PROC_COLOR_S, PROC_COLOR_D, PROC_COLOR_T, PROC_COLOR_Z, PROC_COLOR_X, PROC_COLOR_W]
+
+# Convert ps process state to an int
+def get_proc_state(flag):
+        return "RSDTZXW".index(flag) + 1
+        
+
+def draw_text(ctx, text, color, x, y):
+        ctx.set_source_rgba(*color)
+        ctx.move_to(x, y)
+        ctx.show_text(text)
+        
+        
+def draw_fill_rect(ctx, color, rect):
+        ctx.set_source_rgba(*color)
+        ctx.rectangle(*rect)
+        ctx.fill()
+        
+
+def draw_rect(ctx, color, rect):
+        ctx.set_source_rgba(*color)
+        ctx.rectangle(*rect)
+        ctx.stroke()
+        
+        
+def draw_legend_box(ctx, label, fill_color, x, y, s):
+        draw_fill_rect(ctx, fill_color, (x, y - s, s, s))
+        draw_rect(ctx, PROC_BORDER_COLOR, (x, y - s, s, s))
+        draw_text(ctx, label, TEXT_COLOR, x + s + 5, y)
+        
+     
+def draw_legend_line(ctx, label, fill_color, x, y, s):
+        draw_fill_rect(ctx, fill_color, (x, y - s/2, s + 1, 3))    
+        ctx.arc(x + (s + 1)/2.0, y - (s - 3)/2.0, 2.5, 0, 2.0 * math.pi)
+        ctx.fill()
+        draw_text(ctx, label, TEXT_COLOR, x + s + 5, y)
+        
+
+def draw_label_in_box(ctx, color, label, x, y, w, maxx):
+        label_w = ctx.text_extents(label)[2]
+        label_x = x + w / 2 - label_w / 2
+        if label_w + 10 > w:
+            label_x = x + w + 5
+        if label_x + label_w > maxx:
+            label_x = x - label_w - 5
+        draw_text(ctx, label, color, label_x, y)
+
+
+def draw_5sec_labels(ctx, rect, sec_w):
+        ctx.set_font_size(AXIS_FONT_SIZE)
+        for i in range(0, rect[2] + 1, sec_w):
+                if ((i / sec_w) % 5 == 0) :
+                        label = "%ds" % (i / sec_w)
+                        label_w = ctx.text_extents(label)[2]
+                        draw_text(ctx, label, TEXT_COLOR, rect[0] + i - label_w/2, rect[1] - 2)
+
+
+def draw_box_ticks(ctx, rect, sec_w):
+        draw_rect(ctx, BORDER_COLOR, tuple(rect))
+        
+        ctx.set_line_cap(cairo.LINE_CAP_SQUARE)
+
+        for i in range(sec_w, rect[2] + 1, sec_w):
+                if ((i / sec_w) % 5 == 0) :
+                        ctx.set_source_rgba(*TICK_COLOR_BOLD)
+                else :
+                        ctx.set_source_rgba(*TICK_COLOR)
+                ctx.move_to(rect[0] + i, rect[1] + 1)
+                ctx.line_to(rect[0] + i, rect[1] + rect[3] - 1)
+                ctx.stroke()
+
+        ctx.set_line_cap(cairo.LINE_CAP_BUTT)
+
+def draw_chart(ctx, color, fill, chart_bounds, data, proc_tree):
+        ctx.set_line_width(0.5)
+        x_shift = proc_tree.start_time
+        x_scale = proc_tree.duration
+    
+        def transform_point_coords(point, x_base, y_base, xscale, yscale, x_trans, y_trans):
+                x = (point[0] - x_base) * xscale + x_trans
+                y = (point[1] - y_base) * -yscale + y_trans + bar_h
+                return x, y
+
+        xscale = float(chart_bounds[2]) / max(x for (x,y) in data)
+        yscale = float(chart_bounds[3]) / max(y for (x,y) in data)
+    
+        first = transform_point_coords(data[0], x_shift, 0, xscale, yscale, chart_bounds[0], chart_bounds[1])
+        last = transform_point_coords(data[-1], x_shift, 0, xscale, yscale, chart_bounds[0], chart_bounds[1])
+    
+        ctx.set_source_rgba(*color)
+        ctx.move_to(*first)
+        for point in data:
+                x, y = transform_point_coords(point, x_shift, 0, xscale, yscale, chart_bounds[0], chart_bounds[1])
+                ctx.line_to(x, y)
+        if fill:
+                ctx.stroke_preserve()
+                ctx.line_to(last[0], chart_bounds[1]+bar_h)
+                ctx.line_to(first[0], chart_bounds[1]+bar_h)
+                ctx.line_to(first[0], first[1])
+                ctx.fill()
+        else:
+                ctx.stroke()
+        ctx.set_line_width(1.0)
+
+header_h = 280
+bar_h = 55
+# offsets
+off_x, off_y = 10, 10
+sec_w = 25 # the width of a second
+proc_h = 16 # the height of a process
+leg_s = 10
+MIN_IMG_W = 800
+
+
+def extents(headers, cpu_stats, disk_stats, proc_tree):
+        w = (proc_tree.duration * sec_w / 100) + 2*off_x
+        h = proc_h * proc_tree.num_proc + header_h + 2*off_y
+        return (w,h)
+
+#
+# Render the chart.
+# 
+def render(ctx, headers, cpu_stats, disk_stats, proc_tree):
+        (w, h) = extents(headers, cpu_stats, disk_stats, proc_tree)
+
+        ctx.set_line_width(1.0)
+        ctx.select_font_face(FONT_NAME)
+        draw_fill_rect(ctx, WHITE, (0, 0, max(w, MIN_IMG_W), h))
+        w -= 2*off_x    
+        # draw the title and headers
+        curr_y = draw_header(ctx, headers, off_x, proc_tree.duration)
+    
+        # render bar legend
+        ctx.set_font_size(LEGEND_FONT_SIZE)
+
+        draw_legend_box(ctx, "CPU (user+sys)", CPU_COLOR, off_x, curr_y+20, leg_s)
+        draw_legend_box(ctx, "I/O (wait)", IO_COLOR, off_x + 120, curr_y+20, leg_s)
+
+        # render I/O wait
+        chart_rect = (off_x, curr_y+30, w, bar_h)
+        draw_box_ticks(ctx, chart_rect, sec_w)
+        draw_chart(ctx, IO_COLOR, True, chart_rect, [(sample.time, sample.user + sample.sys + sample.io) for sample in cpu_stats], proc_tree) 
+        # render CPU load
+        draw_chart(ctx, CPU_COLOR, True, chart_rect, [(sample.time, sample.user + sample.sys) for sample in cpu_stats], proc_tree)
+
+        curr_y = curr_y + 30 + bar_h
+
+        # render second chart
+        draw_legend_line(ctx, "Disk throughput", DISK_TPUT_COLOR, off_x, curr_y+20, leg_s)
+        draw_legend_box(ctx, "Disk utilization", IO_COLOR, off_x + 120, curr_y+20, leg_s)
+
+        # render I/O utilization
+        chart_rect = (off_x, curr_y+30, w, bar_h)
+        draw_box_ticks(ctx, chart_rect, sec_w)                  
+        draw_chart(ctx, IO_COLOR, True, chart_rect, [(sample.time, sample.util) for sample in disk_stats], proc_tree)
+                                
+        # render disk throughput
+        max_sample = max(disk_stats, key=lambda s: s.tput)
+        draw_chart(ctx, DISK_TPUT_COLOR, False, chart_rect, [(sample.time, sample.tput) for sample in disk_stats], proc_tree)
+        
+        pos_x = off_x + ((max_sample.time - proc_tree.start_time) * w / proc_tree.duration)
+
+        shift_x, shift_y = -20, 20
+        if (pos_x < off_x + 245):
+                shift_x, shift_y = 5, 40
+                                
+        label = "%dMB/s" % round((max_sample.tput) / 1024.0)
+        draw_text(ctx, label, DISK_TPUT_COLOR, pos_x + shift_x, curr_y + shift_y)
+
+
+        # draw process boxes
+        draw_process_bar_chart(ctx, proc_tree, curr_y + bar_h, w, h)
+
+        ctx.set_font_size(SIG_FONT_SIZE)
+        draw_text(ctx, SIGNATURE, SIG_COLOR, off_x + 5, h - off_y - 5)
+        
+def draw_process_bar_chart(ctx, proc_tree, curr_y, w, h):
+        draw_legend_box(ctx, "Running (%cpu)",          PROC_COLOR_R, off_x    , curr_y + 45, leg_s)            
+        draw_legend_box(ctx, "Unint.sleep (I/O)",       PROC_COLOR_D, off_x+120, curr_y + 45, leg_s)
+        draw_legend_box(ctx, "Sleeping",                PROC_COLOR_S, off_x+240, curr_y + 45, leg_s)
+        draw_legend_box(ctx, "Zombie",                  PROC_COLOR_Z, off_x+360, curr_y + 45, leg_s)
+        
+        chart_rect = [off_x, curr_y+60, w, h - 2 * off_y - (curr_y+60) + proc_h]
+        ctx.set_font_size(PROC_TEXT_FONT_SIZE)
+        
+        draw_box_ticks(ctx, chart_rect, sec_w)
+        draw_5sec_labels(ctx, chart_rect, sec_w)
+        
+        y = curr_y+60
+        for root in proc_tree.process_tree:        
+                draw_processes_recursively(ctx, root, proc_tree, y, proc_h, chart_rect)
+                y  = y + proc_h * proc_tree.num_nodes([root])
+
+
+def draw_header(ctx, headers, off_x, duration):
+    dur = duration / 100.0
+    toshow = [
+      ('system.uname', 'uname', lambda s: s),
+      ('system.release', 'release', lambda s: s),
+      ('system.cpu', 'CPU', lambda s: re.sub('model name\s*:\s*', '', s, 1)),
+      ('system.kernel.options', 'kernel options', lambda s: s),
+      ('pseudo.header', 'time', lambda s: '%02d:%05.2f' % (math.floor(dur/60), dur - 60 * math.floor(dur/60)))
+    ]
+
+    header_y = ctx.font_extents()[2] + 10
+    ctx.set_font_size(TITLE_FONT_SIZE)
+    draw_text(ctx, headers['title'], TEXT_COLOR, off_x, header_y)
+    ctx.set_font_size(TEXT_FONT_SIZE)
+        
+    for (headerkey, headertitle, mangle) in toshow:
+        header_y += ctx.font_extents()[2]
+        txt = headertitle + ': ' + mangle(headers.get(headerkey))
+        draw_text(ctx, txt, TEXT_COLOR, off_x, header_y)
+
+    return header_y
+
+def draw_processes_recursively(ctx, proc, proc_tree, y, proc_h, rect) :
+        x = rect[0] +  ((proc.start_time - proc_tree.start_time) * rect[2] / proc_tree.duration)
+        w = ((proc.duration) * rect[2] / proc_tree.duration)
+
+        draw_process_activity_colors(ctx, proc, proc_tree, x, y, w, proc_h, rect)
+        draw_rect(ctx, PROC_BORDER_COLOR, (x, y, w, proc_h))
+        draw_label_in_box(ctx, PROC_TEXT_COLOR, proc.cmd, x, y + proc_h - 4, w, rect[0] + rect[2])
+
+        next_y = y + proc_h
+        for child in proc.child_list:
+                child_x, child_y = draw_processes_recursively(ctx, child, proc_tree, next_y, proc_h, rect)
+                draw_process_connecting_lines(ctx, x, y, child_x, child_y, proc_h)
+                next_y = next_y + proc_h * proc_tree.num_nodes([child])
+                
+        return x, y
+
+
+def draw_process_activity_colors(ctx, proc, proc_tree, x, y, w, proc_h, rect):
+        draw_fill_rect(ctx, PROC_COLOR_S, (x, y, w, proc_h))
+
+        last_tx = -1
+        for sample in proc.samples :    
+                tx = rect[0] + round(((sample.time - proc_tree.start_time) * rect[2] / proc_tree.duration))
+                tw = round(proc_tree.sample_period * rect[2] / float(proc_tree.duration))
+                if last_tx != -1 and abs(last_tx - tx) <= tw:
+                        tw -= last_tx - tx
+                        tx = last_tx
+             
+                last_tx = tx + tw
+                state = get_proc_state( sample.state )
+
+                color = STATE_COLORS[state]        
+                if state == STATE_RUNNING:
+                        alpha = sample.cpu_sample.user + sample.cpu_sample.sys
+                        color = tuple(list(PROC_COLOR_R[0:3]) + [alpha])
+                elif state == STATE_SLEEPING:
+                        continue
+
+                draw_fill_rect(ctx, color, (tx, y, tw, proc_h))
+
+    
+def draw_process_connecting_lines(ctx, px, py, x, y, proc_h):
+        ctx.set_source_rgba(*DEP_COLOR)
+        ctx.set_dash([2,2])
+        if abs(px - x) < 3:
+                dep_off_x = 3
+                dep_off_y = proc_h / 4
+                ctx.move_to(x, y + proc_h / 2)
+                ctx.line_to(px - dep_off_x, y + proc_h / 2)
+                ctx.line_to(px - dep_off_x, py - dep_off_y)
+                ctx.line_to(px, py - dep_off_y)         
+        else:
+                ctx.move_to(x, y + proc_h / 2)
+                ctx.line_to(px, y + proc_h / 2)
+                ctx.line_to(px, py)
+        ctx.stroke()
+        ctx.set_dash([])