def setBackgroundImage(self, imagefilename):
# code taken from the backgroundImage.cpp file that is part of the QGLViewer library
self.u_max = 1.0
self.v_max = 1.0
# load image
img = QtGui.QImage(imagefilename)
if img.isNull():
QtCore.qWarning("Unable to load file, unsupported file format")
return
# QtCore.qWarning("Loading " + imagefilename + " " + str(img.width()) + "x" + str(img.height()) +" pixels")
self.imageWidth = float(img.width())
self.imageHeight = float(img.height())
# QQQ QtCore.qWarning(str(self.imageWidth) + " " + str(self.imageHeight))
# 1E-3 needed. Just try with width=128 and see !
newWidth = 1<<(int)(1+log(img.width() -1+1E-3) / log(2.0))
newHeight = 1<<(int)(1+log(img.height()-1+1E-3) / log(2.0))
self.u_max = img.width() / float(newWidth)
self.v_max = img.height() / float(newHeight)
if ((img.width()!=newWidth) or (img.height()!=newHeight)):
#QtCore.qWarning("Image size set to " + str(newWidth) + "x" + str(newHeight) + " pixels")
img = img.copy(0, 0, newWidth, newHeight)
glImg = QtGui.QImage(QtOpenGL.QGLWidget.convertToGLFormat(img)) # flipped 32bit RGBA
# Bind the img texture...
glTexImage2D(GL_TEXTURE_2D, 0, 4, glImg.width(), glImg.height(), 0,
GL_RGBA, GL_UNSIGNED_BYTE, glImg.bits().asstring(glImg.numBytes()))
# Another way to bind img texture:
# if self.textureId:
# self.deleteTexture(self.textureId)
# self.textureId = None
# self.textureId = self.bindTexture(img,GL_TEXTURE_2D,GL_RGBA)
# if self.textureId :
# glBindTexture(GL_TEXTURE_2D, self.textureId)
self.bgimage = True
def __init__(self, project, parent=None):
super(Preview, self).__init__(parent)
wanted_size = 50
self.project = project
layout = QtGui.QGridLayout()
icon_name = ":/images/resources/openalea_icon2.png"
if len(project.icon):
if project.icon[0] is not ":":
# local icon
icon_name = project.path / project.icon
# else native icon from oalab.gui.resources
image = QtGui.QImage(icon_name)
label = QtGui.QLabel()
label.setPixmap(QtGui.QPixmap(image))
size = image.size()
if size.height() > wanted_size or size.width() > wanted_size:
# Auto-rescale if image is bigger than wanted_size x wanted_size
label.setScaledContents(True)
label.setMinimumSize(wanted_size, wanted_size)
label.setMaximumSize(wanted_size, wanted_size)
layout.addWidget(label, 0, 0)
layout.addWidget(
QtGui.QLabel("<b><FONT SIZE = 40>" + pretty_print(project.name) +
"<\b>"), 0, 1)
i = 1
for label in Project.DEFAULT_METADATA:
layout.addWidget(QtGui.QLabel(label), i, 0)
# GBY Review:
# QLabel expects a QString and QString is equivalent to unicode
# so you must convert str to unicode to support non ASCII characters correctly (for example accent in author's name)
# If project meta-info encoding is utf-8, you can write projet.author.decode('utf-8')
# Just put accents or greek characters in test data to check such problems
# GBY Review: if amount of metainfo grows, QTextEdit can be more convenient
layout.addWidget(
QtGui.QLabel(pretty_print(getattr(project, label))), i, 1)
i += 1
layout.addWidget(QtGui.QLabel("Items:"), i, 0, 1, 2)
model_list = QtGui.QTextEdit()
layout.addWidget(model_list, i + 1, 0, 1, 2)
model_list.setText(html_item_summary(project))
open_button = QtGui.QPushButton("Open this project")
open_button.clicked.connect(self.on_project_opened)
layout.addWidget(open_button, i + 2, 0)
self.setLayout(layout)
def timerEvent(self, event):
# -- compute the view rect --
rect = self.scene.sceneRect()
scale = self.scale or rect.width() / self.width
transfo = QtGui.QTransform.fromScale(scale, scale)
rect = transfo.mapRect(rect).toRect()
# -- our canvas filled with white --
self.image = QtGui.QImage(rect.width(), rect.height(),
QtGui.QImage.Format_RGB32)
self.image.fill(0xFFFFFFFF)
painter = QtGui.QPainter(self.image)
painter.setRenderHint(QtGui.QPainter.Antialiasing)
self.scene.render(painter)
self.image.save(self.filename + '.png', "png")
self.killTimer(self.timerId)
QtGui.QApplication.exit()
