wxpython 将pdf文档读取并显示到 wx界面上
时间: 2023-12-17 18:05:25 浏览: 231
要在`wxPython`中读取和显示`PDF`文档,您可以使用第三方库`PyMuPDF`来实现。以下是一个简单的示例:
```python
import fitz
import wx
class PDFPanel(wx.Panel):
def __init__(self, parent):
wx.Panel.__init__(self, parent)
self.pdfdoc = None
self.current_page = None
self.total_pages = None
self.bitmap = None
self.page_width = None
self.page_height = None
def open_pdf(self, path):
self.pdfdoc = fitz.open(path)
self.current_page = 0
self.total_pages = len(self.pdfdoc)
self.render_page()
def render_page(self):
page = self.pdfdoc[self.current_page]
zoom = 72 / 96 # adjust zoom to match screen resolution
mat = fitz.Matrix(zoom, zoom)
pix = page.getPixmap(matrix=mat)
img = wx.Image(pix.width, pix.height, pix.samples)
img.SetData(pix.samples)
self.bitmap = wx.Bitmap(img)
self.page_width = pix.width
self.page_height = pix.height
self.Refresh()
def paint(self, event):
dc = wx.BufferedPaintDC(self)
if self.bitmap is not None:
dc.DrawBitmap(self.bitmap, 0, 0)
def next_page(self):
if self.current_page < self.total_pages - 1:
self.current_page += 1
self.render_page()
def prev_page(self):
if self.current_page > 0:
self.current_page -= 1
self.render_page()
class PDFFrame(wx.Frame):
def __init__(self, parent, title):
wx.Frame.__init__(self, parent, title=title, size=(800, 600))
self.panel = PDFPanel(self)
self.panel.Bind(wx.EVT_PAINT, self.panel.paint)
self.create_toolbar()
self.create_menu()
def create_toolbar(self):
toolbar = self.CreateToolBar()
toolbar.AddTool(wx.ID_OPEN, 'Open', wx.Bitmap('open.png'))
toolbar.Realize()
self.Bind(wx.EVT_TOOL, self.on_open, id=wx.ID_OPEN)
def create_menu(self):
menu_bar = wx.MenuBar()
file_menu = wx.Menu()
open_item = file_menu.Append(wx.ID_OPEN, 'Open', 'Open a PDF file')
menu_bar.Append(file_menu, 'File')
self.SetMenuBar(menu_bar)
self.Bind(wx.EVT_MENU, self.on_open, open_item)
def on_open(self, event):
dlg = wx.FileDialog(self, 'Choose a file', '', '', '*.pdf', wx.FD_OPEN)
if dlg.ShowModal() == wx.ID_OK:
path = dlg.GetPath()
self.panel.open_pdf(path)
dlg.Destroy()
if __name__ == '__main__':
app = wx.App()
frame = PDFFrame(None, 'PDF Viewer')
frame.Show()
app.MainLoop()
```
在上面的示例中,`PDFPanel`是继承自`wx.Panel`的自定义面板类,用于显示`PDF`文档。它使用`PyMuPDF`库来读取`PDF`文档并将其渲染成`wx.Bitmap`对象,然后将其显示在面板上。
`PDFFrame`是继承自`wx.Frame`的窗口类,包含一个`PDFPanel`面板和一个工具栏和菜单,用于打开`PDF`文件。当用户选择要打开的文件时,它会调用`PDFPanel`的`open_pdf`方法来加载并显示`PDF`文档。
注意,上面的示例仅提供一个基本的实现,您可能需要根据自己的需求进行修改和扩展。例如,您可以添加缩放和滚动功能,以便用户可以更方便地查看文档中的内容。
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