def draw_text_2d(text, x, y, line_height=17, color=None):
"""Draw a text at a given 2D position.
A very basic 2D drawing function for drawing (multi-line) text."
"""
width = glutGet(GLUT_WINDOW_WIDTH)
height = glutGet(GLUT_WINDOW_HEIGHT)
glMatrixMode(GL_PROJECTION)
glPushMatrix() #matrix = glGetDouble( GL_PROJECTION_MATRIX )
glLoadIdentity()
glOrtho(0.0, width, 0.0, height, -1.0, 1.0)
glMatrixMode(GL_MODELVIEW)
glPushMatrix()
glLoadIdentity()
if color:
glColor3f(*color)
glRasterPos2i(x, y)
lines = 0
for character in text:
if character == '\n':
lines += 1
glRasterPos(x, y - (lines * line_height))
else:
glutBitmapCharacter(GLUT_BITMAP_8_BY_13, ord(character))
glPopMatrix()
glMatrixMode(GL_PROJECTION)
glPopMatrix() #glLoadMatrixd(matrix)
glMatrixMode(GL_MODELVIEW)
def _draw_text(font, input_str, x, y, line_height=16, r=1.0, g=1.0, b=1.0):
"""Render text based on window position. The origin is in the bottom-left."""
glColor3f(r, g, b)
glWindowPos2f(x, y)
input_list = input_str.split('\n')
y = y + (line_height * (len(input_list) - 1))
for line in input_list:
glWindowPos2f(x, y)
y -= line_height
for ch in line:
glutBitmapCharacter(font, ctypes.c_int(ord(ch)))
def Print(self, text):
"""Print(String text) prints text to the screen"""
glPushMatrix()
glTranslatef(0.02, 0.96, 0.0) # TODO where does the magic number come from?
for character in text:
if(character == "\n"):
self.rasterPos -= self.y
glRasterPos(0, self.rasterPos)
else:
glutBitmapCharacter(GLUT_BITMAP_8_BY_13,
ord(character))
glPopMatrix()
def draw_text_3d(text, x, y, z, color=None):
"""Draw a text at a given 3D position.
A very basic 3D drawing function for displaying text in a 3D scene.
The multi-line support is experimental.
"""
if color:
glColor3f(*color)
glRasterPos(x, y, z)
for character in text:
if character == '\n':
glRasterPos(x, y, z - 15)
else:
glutBitmapCharacter(GLUT_BITMAP_8_BY_13, ord(character))
def _text_(self, text, offs, stroke=False, color=None):
'''
'''
if stroke:
font = GLUT_STROKE_ROMAN
glutStrokeWidth(font, 50)
for c in text:
glutStrokeCharacter(font, ord(c))
else:
glDisable(GL_LIGHTING)
co = color if (color and (isinstance(color, tuple) or isinstance(color, list))) else (0, 1, 0)
glColor3f(*co)
font = GLUT_BITMAP_HELVETICA_18
glRasterPos2f(*offs)
for c in text:
glutBitmapCharacter(font, ord(c))
glEnable(GL_LIGHTING)
def render(self):
if self.blend < 1:
glColor3fv((1, 0, 0)) # dark grey this one
else:
glColor3fv(self.textcolors[0]) #
# marquee
glPushMatrix()
glEnable(GL_LINE_STIPPLE)
glLineStipple(
1, 0x1111) # 0x0101 dotted # 0x00FF dashed #0x1C47 dash/dot/dash
glTranslatef(self.x, self.y, -self.z) # translate to GL loc ppint
glLineWidth(1)
glBegin(GL_LINE_LOOP)
glVertex2f(-self.width2, -self.height2)
glVertex2f(self.width2, -self.height2)
glVertex2f(self.width2, self.height2)
glVertex2f(-self.width2, self.height2)
glEnd()
glDisable(GL_LINE_STIPPLE)
glPopMatrix()
bgleft = self.x - self.width2 # display's marquee left side
w = (self.limits[1] - self.limits[0] +
1) * 0.5 # half width of color area
x = bgleft + self.limits[0] + w # x loc of color rect
# colored selection area #
glColor4fv(self.forecolor) # black?
glPushMatrix()
glTranslatef(x, self.y, -self.z) # translate to GL loc ppint
glRectf(-w, -self.height2 + 1, w, self.height2)
glPopMatrix()
# marquee
self.playhead = (self.app.loopers[self.z].pos * self.width) + bgleft
# reference line
glColor4fv(self.forecolor)
glPushMatrix()
glTranslatef(x, 0, -self.z) # translate to GL loc ppint
glLineWidth(1)
glEnable(GL_LINE_STIPPLE)
glLineStipple(1, 0xF0F0)
glBegin(GL_LINES)
glVertex2f(-w, 0) # line ends
glVertex2f(-w, self.app.height)
glVertex2f(w, 0) # line ends
glVertex2f(w, self.app.height)
glEnd()
glDisable(GL_LINE_STIPPLE)
glPopMatrix()
# playhead line
glColor4fv(
(1, 0, 0, 1)) ### EVERYTHING below goes red but normal volume ###
glPushMatrix()
glTranslatef(self.playhead, self.y,
-self.z) # translate to GL loc ppint
glLineWidth(1)
glBegin(GL_LINES)
glVertex2f(0, self.height2) # line ends
glVertex2f(0, -self.height2)
glEnd()
glPopMatrix()
# red mark # already drawing red at this point
if self.selected: # mark as selected
glPushMatrix()
glTranslatef(20, self.y, -self.z)
glRectf(-7, -7, 7, 7)
glPopMatrix()
# amp/MUTED label #
if self.blend < 1:
glColor3fv((1, 0, 0)) # dark grey this one
txt = 'MUTED'
else:
txt = ''
glRasterPos3f(self.left + 25, self.top + 13, -self.z)
for c in txt:
glutBitmapCharacter(GLUT_BITMAP_8_BY_13, ord(c))
def DrawString(self, s='', f=None):
if f is None: f = GLUT_BITMAP_HELVETICA_12
for c in s:
glutBitmapCharacter(f, ord(c))
def draw_string(x, y, string):
glWindowPos2i(x, y)
for c in string:
glutBitmapCharacter(GLUT_BITMAP_8_BY_13, ord(c))
def DrawString(self, s='', f=None): if f is None: f = GLUT_BITMAP_HELVETICA_12 for c in s: glutBitmapCharacter(f, ord(c))
def renderizar_texto(self, texto, posicao_texto, fonte, cor=(1., 1., 1.)):
# glColor(*cor)
glRasterPos2f(*posicao_texto)
for char in texto:
glutBitmapCharacter(fonte, ord(char))
def draw(self):
"""
Draw this menu on the screen.
"""
from OpenGL.GL import glRasterPos2f
from OpenGL.GLUT import glutBitmapCharacter, GLUT_BITMAP_HELVETICA_18
view = glGetInteger(GL_VIEWPORT)
# Switch to an orthogonal projection for drawing the menu.
glDisable(GL_LIGHTING)
glDisable(GL_DEPTH_TEST)
glMatrixMode(GL_PROJECTION)
glPushMatrix()
glLoadIdentity()
# Height and width of the viewport.
vheight = view[3] - view[1]
vwidth = view[2] - view[0]
right = 100.0
top = float(vheight) / float(vwidth) * right
glOrtho(0.0, right, 0.0, top, 0.0, 1.0)
glMatrixMode(GL_MODELVIEW)
glPushMatrix()
glLoadIdentity()
gluLookAt(0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0)
# glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
glEnable(GL_BLEND)
glEnable(GL_LINE_SMOOTH)
glEnable(GL_POLYGON_SMOOTH)
#
# Draw the background box
#
nopts = len(self.opts)
# Constants used to size the menu elements.
ratio = right / vwidth
charRise = 22 * ratio
charFall = 8 * ratio
charWidth = 12 * ratio
vmargin = 10 * ratio
hmargin = 20 * ratio
#
itemHeight = charRise + charFall + vmargin
if self.opts:
# Include the length of the title in maxChars so that
# the menu is never narrower than the title.
maxChars = max([len(s) for s in self.opts + (self.title,)])
totalHeight = itemHeight * len(self.opts) + vmargin
else:
maxChars = len(self.title)
totalHeight = itemHeight + vmargin
width = charWidth * maxChars + hmargin * 2.0
titleWidth = charWidth * len(self.title) + hmargin * 2.0
glColor4f(*self.bgColor)
glPushMatrix()
# Translate into the center of the display.
glTranslatef(50.0, top / 2.0, 0.0)
# Now translate this whole figure so that it's centered.
glTranslatef(width / -2.0, totalHeight / -2.0, 0.0)
glBegin(GL_QUADS)
glVertex3f(0.0, 0.0, 0.0)
glVertex3f(width, 0.0, 0.0)
glVertex3f(width, totalHeight, 0.0)
glVertex3f(0.0, totalHeight, 0.0)
glEnd()
glPushMatrix()
glColor4f(*self.fgColor)
glTranslatef(0.0, totalHeight, 0.0)
# Draw the background for the title.
glBegin(GL_QUADS)
glVertex3f(0.0, 0.0, 0.0)
glVertex3f(titleWidth, 0.0, 0.0)
glVertex3f(titleWidth, itemHeight, 0.0)
glVertex3f(0.0, itemHeight, 0.0)
glEnd()
glPopMatrix()
#
# Draw the selection frame for the currently selected item
#
glColor4f(*self.selColor)
# push is 1/2 the linewidth
glPushMatrix()
glTranslatef(0.0, itemHeight * (nopts - self.selection - 1) + vmargin / 2.0, 0.0)
glBegin(GL_QUADS)
glVertex3f(hmargin / 4.0, vmargin / 4.0, 0.0)
glVertex3f(width - hmargin / 4.0, vmargin / 4.0, 0.0)
glVertex3f(width - hmargin / 4.0, itemHeight - vmargin / 4.0, 0.0)
glVertex3f(hmargin / 4.0, itemHeight - vmargin / 4.0, 0.0)
glEnd()
glPopMatrix()
#
# Draw the menu items
#
# Translate into position for the last item.
glTranslatef(hmargin, charFall + vmargin, 0.0)
# Draw items, moving up as we go
for i in range(nopts - 1, -1, -1):
glPushMatrix()
glColor4f(*self.fgColor)
glRasterPos2f(0, 0)
for c in self.opts[i]:
glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, ord(c))
glPopMatrix()
glTranslatef(0.0, itemHeight, 0.0)
#
# Draw the menu title.
#
glTranslatef(0.0, vmargin / 2.0, 0.0)
glColor4f(*self.bgColor)
glRasterPos2f(0, 0)
for c in self.title:
glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, ord(c))
glPopMatrix()
#
# end draw
#
glPopMatrix()
glMatrixMode(GL_PROJECTION)
glPopMatrix()
glMatrixMode(GL_MODELVIEW)
glEnable(GL_LIGHTING)
glEnable(GL_DEPTH_TEST)
def render(self) :
if self.blend < 1:
glColor3fv( (1,0,0) ) # dark grey this one
else :
glColor3fv(self.textcolors[0]) #
# marquee
glPushMatrix()
glEnable(GL_LINE_STIPPLE)
glLineStipple(1, 0x1111) # 0x0101 dotted # 0x00FF dashed #0x1C47 dash/dot/dash
glTranslatef(self.x, self.y, -self.z) # translate to GL loc ppint
glLineWidth(1)
glBegin(GL_LINE_LOOP)
glVertex2f(-self.width2, -self.height2)
glVertex2f(self.width2, -self.height2)
glVertex2f(self.width2, self.height2)
glVertex2f(-self.width2, self.height2)
glEnd()
glDisable(GL_LINE_STIPPLE)
glPopMatrix()
bgleft = self.x - self.width2 # display's marquee left side
w = (self.limits[1] - self.limits[0] + 1)*0.5 # half width of color area
x = bgleft + self.limits[0] + w # x loc of color rect
# colored selection area #
glColor4fv(self.forecolor) # black?
glPushMatrix()
glTranslatef(x, self.y, -self.z) # translate to GL loc ppint
glRectf(-w, -self.height2+1, w, self.height2)
glPopMatrix()
# marquee
self.playhead = (self.app.loopers[self.z].pos * self.width) + bgleft
# reference line
glColor4fv( self.forecolor )
glPushMatrix()
glTranslatef( x, 0, -self.z ) # translate to GL loc ppint
glLineWidth(1)
glEnable(GL_LINE_STIPPLE)
glLineStipple(1, 0xF0F0)
glBegin(GL_LINES)
glVertex2f( -w, 0) # line ends
glVertex2f( -w, self.app.height )
glVertex2f( w, 0) # line ends
glVertex2f( w, self.app.height )
glEnd()
glDisable(GL_LINE_STIPPLE)
glPopMatrix()
# playhead line
glColor4fv( (1,0,0,1) ) ### EVERYTHING below goes red but normal volume ###
glPushMatrix()
glTranslatef( self.playhead, self.y, -self.z ) # translate to GL loc ppint
glLineWidth(1)
glBegin(GL_LINES)
glVertex2f( 0, self.height2 ) # line ends
glVertex2f( 0, -self.height2 )
glEnd()
glPopMatrix()
# red mark # already drawing red at this point
if self.selected : # mark as selected
glPushMatrix()
glTranslatef(20, self.y, -self.z)
glRectf(-7,-7,7,7)
glPopMatrix()
# amp/MUTED label #
if self.blend < 1:
glColor3fv( (1,0,0) ) # dark grey this one
txt ='MUTED'
else :
txt = ''
glRasterPos3f(self.left + 25, self.top + 13, -self.z)
for c in txt :
glutBitmapCharacter(GLUT_BITMAP_8_BY_13, ord(c))
def draw_string(x, y, string):
glWindowPos2i(x, y)
for c in string:
glutBitmapCharacter(GLUT_BITMAP_8_BY_13, ord(c))
