Using PyQT with QT Designer

[tausciam at gmail.com]

On Thursday, August 22, 2013 3:26:17 AM UTC-5, Phil Thompson wrote:

> It looks like you aren't using a layout to arrange your widgets.
> 
> Explicitly specifying geometries is a bad idea.
> 
> 
> 
> Phil

Thanks.QT Designer uses set geometry and I'm totally lost as how to implement it. I've tried using a layout on the central widget. I've tried specifically referencing the Ui_MainWindow in the window.py ui file...

This is what I tried:

from PyQt4.QtCore import *
from PyQt4.QtGui import *
from window import Ui_MainWindow
     
THUMBNAIL_SIZE = 128
SPACING        = 10
IMAGES_PER_ROW = 4

class MainWindow(QMainWindow, Ui_MainWindow):
    def __init__(self):
        super(MainWindow, self).__init__()

#        self.setWindowTitle("Image Gallery")
        
        centralWidget=QWidget(self)
        l=QVBoxLayout(centralWidget)
        
        self.tableWidget=TableWidget(self)
        l.addWidget(self.tableWidget)
        
        self.listWidget=ListWidget(self)
        l.addWidget(self.listWidget)
        
        Ui_MainWindow.pushButton = QPushButton(self)
        l.addWidget(Ui_MainWindow.pushButton)
        
        self.pushButton_2 = QPushButton(self)
        l.addWidget(self.pushButton_2)
        
        self.pushButton_3 = QPushButton(self)
        l.addWidget(self.pushButton_3)
     
        self.setCentralWidget(centralWidget)
     
        picturesPath=QDesktopServices.storageLocation(QDesktopServices.PicturesLocation)
        pictureDir=QDir(picturesPath)
        pictures=pictureDir.entryList(['*.jpg','*.png','*.gif'])
     
        rowCount=len(pictures)//IMAGES_PER_ROW
        if len(pictures)%IMAGES_PER_ROW: rowCount+=1
        self.tableWidget.setRowCount(rowCount)
     
        row=-1
        for i,picture in enumerate(pictures):
            col=i%IMAGES_PER_ROW
            if not col: row+=1
            self.tableWidget.addPicture(row, col, pictureDir.absoluteFilePath(picture))    

class ListWidget(QListWidget):
    def __init__(self, parent=MainWindow, **kwargs):
        QListWidget.__init__(self, parent, **kwargs)
        
        self.setGeometry(QRect(70, 400, 661, 181))
        
class TableWidget(QTableWidget):
    def __init__(self, parent=MainWindow, **kwargs):
        QTableWidget.__init__(self, parent, **kwargs)
     
        self.setIconSize(QSize(128,128))
        self.setColumnCount(IMAGES_PER_ROW)
        self.setGridStyle(Qt.NoPen)

        # Set the default column width and hide the header
        self.verticalHeader().setDefaultSectionSize(THUMBNAIL_SIZE+SPACING)
        self.verticalHeader().hide()
     
        # Set the default row height and hide the header
        self.horizontalHeader().setDefaultSectionSize(THUMBNAIL_SIZE+SPACING)
        self.horizontalHeader().hide()
     
        # Set the table width to show all images without horizontal scrolling
        self.setMinimumWidth((THUMBNAIL_SIZE+SPACING)*IMAGES_PER_ROW+(SPACING*2))
     
    def addPicture(self, row, col, picturePath):
        item=QTableWidgetItem()
     
        # Scale the image by either height or width and then 'crop' it to the
        # desired size, this prevents distortion of the image.
        p=QPixmap(picturePath)
        if p.height()>p.width(): p=p.scaledToWidth(THUMBNAIL_SIZE)
        else: p=p.scaledToHeight(THUMBNAIL_SIZE)
        p=p.copy(0,0,THUMBNAIL_SIZE,THUMBNAIL_SIZE)
        item.setIcon(QIcon(p))
     
        self.setItem(row,col,item)
        
     
if __name__=="__main__":
    from sys import argv, exit
     
    a=QApplication(argv)
    m=MainWindow()
    m.show()
    m.raise_()
    exit(a.exec_())

and I'm getting this (not even starting at 800x600): http://i.imgur.com/Xg4Qnzl.png

instead of this as it was designed in QT Designer: http://i.imgur.com/ULRolq8.png

Here is the ui file window.py that I got by running pyuic4 on window.ui:

# -*- coding: utf-8 -*-

# Form implementation generated from reading ui file 'window.ui'
#
# Created by: PyQt4 UI code generator 4.9.6
#
# WARNING! All changes made in this file will be lost!

from PyQt4 import QtCore, QtGui

try:
    _fromUtf8 = QtCore.QString.fromUtf8
except AttributeError:
    def _fromUtf8(s):
        return s

try:
    _encoding = QtGui.QApplication.UnicodeUTF8
    def _translate(context, text, disambig):
        return QtGui.QApplication.translate(context, text, disambig, _encoding)
except AttributeError:
    def _translate(context, text, disambig):
        return QtGui.QApplication.translate(context, text, disambig)

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName(_fromUtf8("MainWindow"))
        MainWindow.resize(800, 600)
        MainWindow.setAnimated(False)
        self.centralwidget = QtGui.QWidget(MainWindow)
        self.centralwidget.setObjectName(_fromUtf8("centralwidget"))
        self.tableWidget = QtGui.QTableWidget(self.centralwidget)
        self.tableWidget.setGeometry(QtCore.QRect(70, 20, 661, 381))
        self.tableWidget.setObjectName(_fromUtf8("tableWidget"))
        self.tableWidget.setColumnCount(0)
        self.tableWidget.setRowCount(0)
        self.listWidget = QtGui.QListWidget(self.centralwidget)
        self.listWidget.setGeometry(QtCore.QRect(70, 400, 661, 181))
        self.listWidget.setObjectName(_fromUtf8("listWidget"))
        self.pushButton = QtGui.QPushButton(self.centralwidget)
        self.pushButton.setGeometry(QtCore.QRect(0, 150, 71, 81))
        self.pushButton.setText(_fromUtf8(""))
        icon = QtGui.QIcon()
        icon.addPixmap(QtGui.QPixmap(_fromUtf8("pics/eye.png")), QtGui.QIcon.Normal, QtGui.QIcon.Off)
        self.pushButton.setIcon(icon)
        self.pushButton.setIconSize(QtCore.QSize(64, 64))
        self.pushButton.setObjectName(_fromUtf8("pushButton"))
        self.pushButton_2 = QtGui.QPushButton(self.centralwidget)
        self.pushButton_2.setGeometry(QtCore.QRect(0, 230, 71, 81))
        self.pushButton_2.setText(_fromUtf8(""))
        icon1 = QtGui.QIcon()
        icon1.addPixmap(QtGui.QPixmap(_fromUtf8("pics/ear.png")), QtGui.QIcon.Normal, QtGui.QIcon.Off)
        self.pushButton_2.setIcon(icon1)
        self.pushButton_2.setIconSize(QtCore.QSize(64, 64))
        self.pushButton_2.setObjectName(_fromUtf8("pushButton_2"))
        self.pushButton_3 = QtGui.QPushButton(self.centralwidget)
        self.pushButton_3.setGeometry(QtCore.QRect(730, 20, 61, 61))
        self.pushButton_3.setText(_fromUtf8(""))
        icon2 = QtGui.QIcon()
        icon2.addPixmap(QtGui.QPixmap(_fromUtf8("pics/exit.png")), QtGui.QIcon.Normal, QtGui.QIcon.Off)
        self.pushButton_3.setIcon(icon2)
        self.pushButton_3.setIconSize(QtCore.QSize(48, 48))
        self.pushButton_3.setObjectName(_fromUtf8("pushButton_3"))
        MainWindow.setCentralWidget(self.centralwidget)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow", None))