#!/bin/env python #---------------------------------------------------------------------------- # Name: BrowseImage.py # Purpose: Display and Select Image Files # # Author: Lorne White # # Version: 0.6 # Date: March 27, 2001 # Licence: wxWindows license #---------------------------------------------------------------------------- import os, sys, string from wxPython.wx import * dir_path = os.getcwd() #--------------------------------------------------------------------------- def ConvertBMP(file_nm): fl_fld = os.path.splitext(file_nm) ext = fl_fld[1] ext = string.lower(ext[1:]) if ext == 'bmp': image = wxImage(file_nm, wxBITMAP_TYPE_BMP) elif ext == 'gif': image = wxImage(file_nm, wxBITMAP_TYPE_GIF) elif ext == 'png': image = wxImage(file_nm, wxBITMAP_TYPE_PNG) elif ext == 'jpg': image = wxImage(file_nm, wxBITMAP_TYPE_JPEG) else: image = None return image class ImageView: def __init__(self, iparent, ipos, isize): self.win = iparent self.ImagePanel = wxPanel(size = isize, parent = iparent, id = -1, name = 'backgroundPanel', style = wxSIMPLE_BORDER | wxCLIP_CHILDREN, pos= ipos) self.clear = wxColour(255, 255, 255) self.ImagePanel.SetBackgroundColour(self.clear) # clear the panel self.image_sizex = isize.width self.image_sizey = isize.height self.image_posx = ipos.x self.image_posy = ipos.y wxInitAllImageHandlers() def SetValue(self, file_nm): # display the selected file in the panel image = ConvertBMP(file_nm).ConvertToBitmap() if image is None: return iwidth = image.GetWidth() # dimensions of image file iheight = image.GetHeight() diffx = (self.image_sizex - iwidth)/2 # center calc if iwidth >= self.image_sizex -10: # if image width fits in window adjust diffx = 5 iwidth = self.image_sizex - 10 diffy = (self.image_sizey - iheight)/2 # center calc if iheight >= self.image_sizey - 10: # if image height fits in window adjust diffy = 5 iheight = self.image_sizey - 10 self.ClearPanel() wxStaticBitmap(self.win, -1, image, wxPoint(self.image_posx+diffx, self.image_posy+diffy), wxSize(iwidth, iheight )) def ClearPanel(self): # clear the image panel self.ImagePanel.SetBackgroundColour(self.clear) self.ImagePanel.Refresh() class ImageDialog(wxDialog): def __init__(self, parent, set_dir = None): wxDialog.__init__(self, parent, -1, "Image Browser", wxPyDefaultPosition, wxSize(400, 400)) self.x_pos = 30 # initial display positions self.y_pos = 20 self.delta = 20 size = wxSize(80, 25) self.set_dir = os.getcwd() if set_dir != None: if os.path.exists(set_dir): # set to working directory if nothing set self.set_dir = set_dir self.dir_x = self.x_pos self.dir_y = self.y_pos self.DisplayDir() # display the directory value self.y_pos = self.y_pos + self.delta mID = NewId() wxButton(self, mID, ' Set Directory ', wxPoint(self.x_pos, self.y_pos), size).SetDefault() EVT_BUTTON(self, mID, self.SetDirect) self.type_posy = self.y_pos # save the y position for the image type combo self.fl_ext = '*.bmp' # initial setting for file filtering self.GetFiles() # get the file list self.y_pos = self.y_pos + self.delta + 10 self.list_height = 150 # List of Labels mID = NewId() self.tb = tb = wxListBox(self, mID, wxPoint(self.x_pos, self.y_pos), wxSize(160, self.list_height), self.fl_list, wxLB_SINGLE) EVT_LISTBOX(self, mID, self.OnListClick) EVT_LISTBOX_DCLICK(self, mID, self.OnListDClick) width, height = self.tb.GetSizeTuple() image_posx = self.x_pos + width + 20 # positions for setting the image window image_posy = self.y_pos image_sizex = 150 image_sizey = self.list_height self.fl_types = ["Bmp", "Gif", "Png", "Jpg"] self.fl_ext_types = { "Bmp": "*.bmp", "Gif": "*.gif", "Png": "*.png", "Jpg": "*.jpg" } self.set_type = self.fl_types[0] # initial file filter setting mID = NewId() self.sel_type = wxComboBox(self, mID, self.set_type, wxPoint(image_posx , self.type_posy), wxSize(150, -1), self.fl_types, wxCB_DROPDOWN) EVT_COMBOBOX(self, mID, self.OnSetType) self.image_view = ImageView(self, wxPoint(image_posx, image_posy), wxSize(image_sizex, image_sizey)) self.y_pos = self.y_pos + height + 20 mID = NewId() wxButton(self, mID, ' Select ', wxPoint(100, self.y_pos), size).SetDefault() EVT_BUTTON(self, mID, self.OnOk) wxButton(self, wxID_CANCEL, 'Cancel', wxPoint(250, self.y_pos), size) self.y_pos = self.y_pos + self.delta fsize = wxSize(400, self.y_pos + 50) # resize dialog for final vertical position self.SetSize(fsize) self.ResetFiles() def GetFiles(self): # get the file list using directory and extension values self.fl_val = FindFiles(self, self.set_dir, self.fl_ext) self.fl_list = self.fl_val.files def DisplayDir(self): # display the working directory wxStaticText(self, -1, self.set_dir, wxPoint(self.dir_x, self.dir_y), wxSize(250, -1)) def OnSetType(self, event): val = event.GetString() # get file type value self.fl_ext = self.fl_ext_types[val] self.ResetFiles() def OnListDClick(self, event): self.OnOk(0) def OnListClick(self, event): val = event.GetSelection() self.SetListValue(val) def SetListValue(self, val): file_nm = self.fl_list[val] self.set_file = file_val = os.path.join(self.set_dir, file_nm) self.image_view.SetValue(file_val) def SetDirect(self, event): # set the new directory dlg = wxDirDialog(self) dlg.SetPath(self.set_dir) if dlg.ShowModal() == wxID_OK: self.set_dir = dlg.GetPath() self.ResetFiles() dlg.Destroy() def ResetFiles(self): # refresh the display with files and initial image self.image_view.ClearPanel() self.DisplayDir() self.GetFiles() self.tb.Set(self.fl_list) try: self.tb.SetSelection(0) self.SetListValue(0) except: pass def GetFile(self): return self.set_file def OnCancel(self, event): self.result = None self.EndModal(wxID_CANCEL) def OnOk(self, event): self.result = self.set_file self.EndModal(wxID_OK) def OnFileDlg(self): dlg = wxFileDialog(self, "Choose an Image File", ".", "", "Bmp (*.bmp)|*.bmp|JPEG (*.jpg)|*.jpg", wxOPEN) if dlg.ShowModal() == wxID_OK: path = dlg.GetPath() else: path = None dlg.Destroy() return path class FindFiles: def __init__(self, parent, dir, mask): filelist = [] dirlist = [".."] self.dir = dir self.file = "" mask = string.upper(mask) self.MakeRegex(mask) for i in os.listdir(dir): if i == "." or i == "..": continue path = os.path.join(dir, i) path = string.upper(path) value = string.upper(i) if self.regex.match(value) == len(value): filelist.append(i) self.files = filelist def MakeRegex(self, pattern): import regex f = "" # Set up a regex for file names for ch in pattern: if ch == "*": f = f + ".*" elif ch == ".": f = f + "\." elif ch == "?": f = f + "." else: f = f + ch self.regex = regex.compile(f) def StripExt(self, file_nm): fl_fld = os.path.splitext(file_nm) fl_name = fl_fld[0] ext = fl_fld[1] return ext[1:]