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[Samples] ComboBox samples, still missing some major combo features.

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Pedro Larouca 2018-03-21 02:27:44 +00:00
parent 9366140544
commit ed53817b99
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47
Source/Samples/Samples.csproj
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@ -25,4 +25,51 @@
<ProjectReference Include="..\Libs\GtkSharp\GtkSharp.csproj" /> <ProjectReference Include="..\Libs\GtkSharp\GtkSharp.csproj" />
<ProjectReference Include="..\Libs\PangoSharp\PangoSharp.csproj" /> <ProjectReference Include="..\Libs\PangoSharp\PangoSharp.csproj" />
</ItemGroup> </ItemGroup>
<ItemGroup>
<EmbeddedResource Update="Sections\Category.cs">
<LogicalName>GtkSharp.Samples.Category.cs</LogicalName>
</EmbeddedResource>
<EmbeddedResource Update="Sections\ListSection.cs">
<LogicalName>GtkSharp.Samples.ListSection.cs</LogicalName>
</EmbeddedResource>
<EmbeddedResource Update="Sections\SectionAttribute.cs">
<LogicalName>GtkSharp.Samples.SectionAttribute.cs</LogicalName>
</EmbeddedResource>
<EmbeddedResource Update="Sections\Dialogs\AboutDialogSection.cs">
<LogicalName>GtkSharp.Samples.AboutDialogSection.cs</LogicalName>
</EmbeddedResource>
<EmbeddedResource Update="Sections\Widgets\ButtonSection.cs">
<LogicalName>GtkSharp.Samples.ButtonSection.cs</LogicalName>
</EmbeddedResource>
<EmbeddedResource Update="Sections\Widgets\ColorButtonSection.cs">
<LogicalName>GtkSharp.Samples.ColorButtonSection.cs</LogicalName>
</EmbeddedResource>
<EmbeddedResource Update="Sections\Widgets\EntrySection.cs">
<LogicalName>GtkSharp.Samples.EntrySection.cs</LogicalName>
</EmbeddedResource>
<EmbeddedResource Update="Sections\Widgets\LabelSection.cs">
<LogicalName>GtkSharp.Samples.LabelSection.cs</LogicalName>
</EmbeddedResource>
<EmbeddedResource Update="Sections\Widgets\LevelBarSection.cs">
<LogicalName>GtkSharp.Samples.LevelBarSection.cs</LogicalName>
</EmbeddedResource>
<EmbeddedResource Update="Sections\Widgets\LinkButtonSection.cs">
<LogicalName>GtkSharp.Samples.LinkButtonSection.cs</LogicalName>
</EmbeddedResource>
<EmbeddedResource Update="Sections\Widgets\ProgressBarSection.cs">
<LogicalName>GtkSharp.Samples.ProgressBarSection.cs</LogicalName>
</EmbeddedResource>
<EmbeddedResource Update="Sections\Widgets\SpinButtonSection.cs">
<LogicalName>GtkSharp.Samples.SpinButtonSection.cs</LogicalName>
</EmbeddedResource>
<EmbeddedResource Update="Sections\Widgets\SpinnerSection.cs">
<LogicalName>GtkSharp.Samples.SpinnerSection.cs</LogicalName>
</EmbeddedResource>
<EmbeddedResource Update="Sections\Widgets\SwitchSection.cs">
<LogicalName>GtkSharp.Samples.SwitchSection.cs</LogicalName>
</EmbeddedResource>
<EmbeddedResource Update="Sections\Widgets\ToggleButtonSection.cs">
<LogicalName>GtkSharp.Samples.ToggleButtonSection.cs</LogicalName>
</EmbeddedResource>
</ItemGroup>
</Project> </Project>

97
Source/Samples/Sections/Widgets/ComboBoxSection.cs Normal file
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// This is free and unencumbered software released into the public domain.
// Happy coding!!! - GtkSharp Team
using Gtk;
namespace Samples
{
[Section(ContentType = typeof(ComboBox), Category = Category.Widgets)]
class ComboBoxSection : ListSection
{
public ComboBoxSection()
{
AddItem(CreateSimpleComboBox());
AddItem(CreateMultiColumnComboBox());
AddItem(CreateEditableComboBox());
}
public (string, Widget) CreateSimpleComboBox()
{
// initialize with a simple string list
var combo = new ComboBox(
new string[]
{
"Combo Entry 1",
"Combo Entry 2",
"Combo Entry 3",
"Combo Entry 4"
}
);
// event to notify for index changes in our combo
combo.Changed += (sender, e) =>
ApplicationOutput.WriteLine(sender, $"Index changed to:{((ComboBox)sender).Active}");
// set the active selection to index 2 (Combo Entry 3)
combo.Active = 2;
return ("Simple combo:", combo);
}
public (string, Widget) CreateMultiColumnComboBox()
{
// create a store for our combo
var store = new ListStore(typeof(string), typeof(string), typeof(bool));
// lets append some stock icons, passing the icon names, and a simple text column
store.AppendValues("dialog-warning", "Warning", true);
store.AppendValues("process-stop", "Stop", false);
store.AppendValues("document-new", "New", true);
store.AppendValues("edit-clear", "Clear", true);
// create cells
var imageCell = new CellRendererPixbuf();
var textCell = new CellRendererText();
// create the combo and pass the values in
var combo = new ComboBox(store);
combo.PackStart(imageCell, true);
combo.PackStart(textCell, true);
// add combo attributes to show in columns
combo.AddAttribute(imageCell, "icon-name", 0);
combo.AddAttribute(textCell, "text", 1);
// lets use the store bool values to control sensitive rows
// Process-stop (store index one) should be disabled in this sample
// For a ComboBox item to be disabled, all cell renderers for the item need to have
// their sensitivity disabled
combo.AddAttribute(imageCell, "sensitive", 2);
combo.AddAttribute(textCell, "sensitive", 2);
// listen to index changed on combo
combo.Changed += (sender, e) =>
ApplicationOutput.WriteLine(sender, $"Index changed to:{((ComboBox)sender).Active}");
// lets preselect the first option
combo.Active = 0;
return ("Combo with Icons and Text:", combo);
}
public (string, Widget) CreateEditableComboBox()
{
var combo = ComboBoxText.NewWithEntry();
combo.AppendText("Example 1");
combo.AppendText("Example 2");
combo.AppendText("Example 3");
combo.AppendText("Example 4");
// combos with entry have a real entry inside it
// we can use it by
combo.Entry.PlaceholderText = "Write something";
return ("Combo with entry:", combo);
}
}
}