GtkTreeView的限制高度
GtkTreeView的限制高度
提问于 2018-02-01 17:32:35
我正在尝试为GtkTreeView设置高度限制，如果行数据超过此限制，则希望使用滚动条。目前，整个窗口不受限制地增长，并在某一时刻离开屏幕。需要什么才能获得所需的行为？
我的Python代码(它只是在每次单击按钮时向列表存储添加一个新行)：
#!/usr/bin/env python3
import gi
gi.require_version("Gtk", "3.0")
from gi.repository import Gtk
class MyApp:
def on_window1_destroy(self, obj, data=None):
Gtk.main_quit()
def button1_clicked(self, object):
liststore = self.builder.get_object("liststore1")
print(self.window.get_default_size())
liststore.append(("test",))
def __init__(self):
self.builder = Gtk.Builder()
self.builder.add_from_file("table_test.glade")
self.builder.connect_signals(self)
self.window = self.builder.get_object("window1")
self.window.show()
if __name__ == "__main__":
main = MyApp()
Gtk.main()相应的Glade文件(test_table.glade)：
<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated with glade 3.18.3 -->
<interface>
<requires lib="gtk+" version="3.12"/>
<object class="GtkListStore" id="liststore1">
<columns>
<!-- column-name column1 -->
<column type="gchararray"/>
</columns>
</object>
<object class="GtkWindow" id="window1">
<property name="can_focus">False</property>
<property name="resizable">False</property>
<property name="default_height">300</property>
<signal name="destroy" handler="on_window1_destroy" swapped="no"/>
<child>
<object class="GtkGrid" id="grid1">
<property name="visible">True</property>
<property name="can_focus">False</property>
<child>
<object class="GtkButton" id="button1">
<property name="label" translatable="yes">add</property>
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="receives_default">True</property>
<signal name="clicked" handler="button1_clicked" swapped="no"/>
</object>
<packing>
<property name="left_attach">1</property>
<property name="top_attach">0</property>
</packing>
</child>
<child>
<object class="GtkTreeView" id="treeview1">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="model">liststore1</property>
<child internal-child="selection">
<object class="GtkTreeSelection" id="treeview-selection1"/>
</child>
<child>
<object class="GtkTreeViewColumn" id="treeviewcolumn1">
<property name="title" translatable="yes">test-column</property>
<child>
<object class="GtkCellRendererText" id="cellrenderertext1"/>
<attributes>
<attribute name="text">0</attribute>
</attributes>
</child>
</object>
</child>
</object>
<packing>
<property name="left_attach">0</property>
<property name="top_attach">0</property>
</packing>
</child>
</object>
</child>
</object>
</interface>回答 1
Stack Overflow用户
回答已采纳
发布于 2018-02-01 23:35:42
您不需要实现该小部件，它已经存在，并且名为Gtk.ScrolledWindow。滚动条行为可以是自动的(仅当内容超过分配的空间时才显示)。
这可以通过向您通过glade添加的GtkTreeView添加一个父小部件来实现。
如果你不想让按钮随着窗口按比例扩展，那么你应该将GtkButton垂直对齐设置为Start (也是在glade中)。
下面是添加了Gtk.ScrolledWindow的glade文件
<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated with glade 3.19.0 -->
<interface>
<requires lib="gtk+" version="3.12"/>
<object class="GtkListStore" id="liststore1">
<columns>
<!-- column-name column1 -->
<column type="gchararray"/>
</columns>
</object>
<object class="GtkWindow" id="window1">
<property name="can_focus">False</property>
<property name="default_height">300</property>
<signal name="destroy" handler="on_window1_destroy" swapped="no"/>
<child>
<object class="GtkGrid" id="grid1">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="hexpand">True</property>
<property name="vexpand">True</property>
<child>
<object class="GtkButton" id="button1">
<property name="label" translatable="yes">add</property>
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="receives_default">True</property>
<property name="halign">center</property>
<property name="valign">start</property>
<signal name="clicked" handler="button1_clicked" swapped="no"/>
</object>
<packing>
<property name="left_attach">1</property>
<property name="top_attach">0</property>
</packing>
</child>
<child>
<object class="GtkScrolledWindow" id="scrolledwindow1">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="hexpand">True</property>
<property name="vexpand">True</property>
<property name="shadow_type">in</property>
<child>
<object class="GtkTreeView" id="treeview1">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="hexpand">True</property>
<property name="vexpand">True</property>
<property name="model">liststore1</property>
<child internal-child="selection">
<object class="GtkTreeSelection" id="treeview-selection1"/>
</child>
<child>
<object class="GtkTreeViewColumn" id="treeviewcolumn1">
<property name="title" translatable="yes">test-column</property>
<child>
<object class="GtkCellRendererText" id="cellrenderertext1"/>
<attributes>
<attribute name="text">0</attribute>
</attributes>
</child>
</object>
</child>
</object>
</child>
</object>
<packing>
<property name="left_attach">0</property>
<property name="top_attach">0</property>
</packing>
</child>
</object>
</child>
</object>
</interface>结果应该类似于如下所示：
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/48559407
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