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FEATURE: Added marker lines to ease meter-reading

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git-svn-id: http://www.neo1973-germany.de/svn@80 46df4e5c-bc4e-4628-a0fc-830ba316316d
This commit is contained in:
kriss 2008-07-02 18:32:00 +00:00
parent 6f321a441c
commit d1cd97cf39
1 changed files with 81 additions and 23 deletions
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74
2D_Slider/trunk/src/slider_2d.py
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@ -46,6 +46,9 @@ class slider_2d(gtk.HBox):
self.bg_color = bg_color
self.fg_color = fg_color
self.mark_color = "#AAAAAA"
self.hover_color = "#555588"
self.x_value = int(x_range[1] - x_range[0] / 2)
self.y_value = int(x_range[1] - x_range[0] / 2)
self.mouse_x_position = -1
@ -53,7 +56,7 @@ class slider_2d(gtk.HBox):
self.clicked = False
self.area = gtk.DrawingArea()
self.area.set_size_request(400, 300)
# self.area.set_size_request(400, 300)
style = self.area.get_style()
self.gc = style.fg_gc[gtk.STATE_NORMAL]
self.area.set_events(gtk.gdk.POINTER_MOTION_MASK |
@ -201,28 +204,77 @@ class slider_2d(gtk.HBox):
# 1) clear screen
self.area.window.draw_rectangle(self.gc, True, 0, 0, -1, -1)
self.gc.foreground = fg_backup
self.draw_grid()
self.show_point(self.x_value, self.y_value)
def draw_grid(self):
backup_fb = self.gc.foreground
try:
self.gc.foreground = self.area.window.get_colormap()\
.alloc_color(self.fg_color)
self.set_color(self.fg_color)
self.gc.set_line_attributes(1, \
gtk.gdk.LINE_SOLID, gtk.gdk.CAP_ROUND, \
gtk.gdk.CAP_ROUND)
# 2) draw grid
x_max = self.width * 1.0 -1
y_max = self.height * 1.0 -1
x_spacing = x_max / self.x_resolution
y_spacing = y_max / self.y_resolution
for i in range(self.x_resolution+2):
self.area.window.draw_line(self.gc, int(x_spacing * i), 0, int(x_spacing * i), int(y_max))
if i == self.x_value:
self.set_color(self.mark_color)
self.area.window.draw_line(self.gc, int(x_spacing * i),\
0, int(x_spacing * i), int(y_max))
self.set_color(self.fg_color)
elif i == self.mouse_x_position:
self.set_color(self.hover_color)
self.area.window.draw_line(self.gc, int(x_spacing * i),\
0, int(x_spacing * i), int(y_max))
self.set_color(self.fg_color)
else:
self.area.window.draw_line(self.gc, int(x_spacing * i),\
0, int(x_spacing * i), int(y_max))
for i in range(self.y_resolution+2):
self.area.window.draw_line(self.gc, 0, int(y_spacing * i), int(x_max), int(y_spacing * i))
if i == self.y_value:
self.set_color(self.mark_color)
self.area.window.draw_line(self.gc, 0, \
int(y_spacing * i), int(x_max), int(y_spacing * i))
self.set_color(self.fg_color)
elif i == self.mouse_y_position:
self.set_color(self.hover_color)
self.area.window.draw_line(self.gc, 0, \
int(y_spacing * i), int(x_max), int(y_spacing * i))
self.set_color(self.fg_color)
else:
self.area.window.draw_line(self.gc, 0, \
int(y_spacing * i), int(x_max), int(y_spacing * i))
# redraw hover (was overdrawn my other lines)
self.set_color(self.hover_color)
self.area.window.draw_line(self.gc, \
int(x_spacing * self.mouse_x_position),\
0, int(x_spacing * self.mouse_x_position), int(y_max))
self.area.window.draw_line(self.gc, 0, \
int(y_spacing * self.mouse_y_position), int(x_max), \
int(y_spacing * self.mouse_y_position))
# redraw value (was overdrawn my other lines)
self.set_color(self.mark_color)
self.area.window.draw_line(self.gc, \
int(x_spacing * self.x_value),\
0, int(x_spacing * self.x_value), int(y_max))
self.area.window.draw_line(self.gc, 0, \
int(y_spacing * self.y_value), int(x_max), \
int(y_spacing * self.y_value))
finally:
self.gc.foreground = backup_fb
self.show_point(self.x_value, self.y_value)
def set_color(self, color_string):
self.gc.foreground = self.area.window.get_colormap()\
.alloc_color(color_string)
def draw_pixmap(self, x, y, img):
"""
@ -255,6 +307,8 @@ class slider_2d(gtk.HBox):
x_spacing = x_max / self.x_resolution
y_spacing = y_max / self.y_resolution
self.draw_grid()
self.show_point(self.x_value, self.y_value)
self.draw_pixmap(x_spacing * int(x_value), y_spacing * int(y_value),\
POINT_INV_IMAGE)
@ -279,7 +333,11 @@ class slider_2d(gtk.HBox):
start_x, start_y, IMAGE_SIZE_X, IMAGE_SIZE_Y)
self.gc.foreground = fg_backup
# easyest way for now: redraw all lines
self.draw_grid()
"""
backup_fb = self.gc.foreground
try:
self.gc.foreground = self.area.window.get_colormap()\
@ -299,5 +357,5 @@ class slider_2d(gtk.HBox):
self.area.window.draw_line(self.gc, 0, int(y_spacing * i), int(x_max), int(y_spacing * i))
finally:
self.gc.foreground = backup_fb
"""
self.show_point(self.x_value, self.y_value)