Git_Mirror/Terminal.Gui
1
0
Fork 0
mirror of https://github.com/gui-cs/Terminal.Gui.git synced 2025-12-26 15:57:56 +01:00
Code Issues Packages Projects Releases Wiki Activity

Fixes #351. Added a horizontal display for RadioGroup.

Browse Source
This commit is contained in:
BDisp
2020-08-03 23:31:12 +01:00
parent e658f08228
commit 0598de1b38
1 changed files with 95 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

119
Terminal.Gui/Views/RadioGroup.cs
View File

@@ -10,15 +10,17 @@ namespace Terminal.Gui {
public class RadioGroup : View {
int selected = -1;
int cursor;
DisplayModeLayout displayMode;
List<(int pos, int length)> horizontal;
void Init(Rect rect, ustring [] radioLabels, int selected)
void Init (Rect rect, ustring [] radioLabels, int selected)
{
if (radioLabels == null) {
this.radioLabels = new List<ustring>();
} else {
this.radioLabels = radioLabels.ToList ();
}
this.selected = selected;
SetWidthHeight (this.radioLabels);
CanFocus = true;
@@ -59,30 +61,47 @@ namespace Terminal.Gui {
/// <param name="y">The y coordinate.</param>
/// <param name="radioLabels">The radio labels; an array of strings that can contain hotkeys using an underscore before the letter.</param>
/// <param name="selected">The item to be selected, the value is clamped to the number of items.</param>
public RadioGroup (int x, int y, ustring [] radioLabels, int selected = 0) :
public RadioGroup (int x, int y, ustring [] radioLabels, int selected = 0) :
this (MakeRect (x, y, radioLabels != null ? radioLabels.ToList() : null), radioLabels, selected) { }
/// <summary>
/// The location of the cursor in the <see cref="RadioGroup"/>
/// Gets or sets the <see cref="DisplayModeLayout"/> for this <see cref="RadioGroup"/>.
/// </summary>
public int Cursor {
get => cursor;
public DisplayModeLayout DisplayMode {
get { return displayMode; }
set {
if (cursor < 0 || cursor >= radioLabels.Count)
return;
cursor = value;
SetNeedsDisplay ();
if (displayMode != value) {
displayMode = value;
SetWidthHeight (radioLabels);
SetNeedsDisplay ();
}
}
}
void SetWidthHeight (List<ustring> radioLabels)
{
var r = MakeRect(0, 0, radioLabels);
if (LayoutStyle == LayoutStyle.Computed) {
Width = r.Width;
Height = radioLabels.Count;
} else {
Frame = new Rect (Frame.Location, new Size (r.Width, radioLabels.Count));
switch (displayMode) {
case DisplayModeLayout.Vertical:
var r = MakeRect (0, 0, radioLabels);
if (LayoutStyle == LayoutStyle.Computed) {
Width = r.Width;
Height = radioLabels.Count;
} else {
Frame = new Rect (Frame.Location, new Size (r.Width, radioLabels.Count));
}
break;
case DisplayModeLayout.Horizontal:
CalculateHorizontalPositions ();
var length = 0;
foreach (var item in horizontal) {
length += item.length;
}
var hr = new Rect (0, 0, length, 1);
if (LayoutStyle == LayoutStyle.Computed) {
Width = hr.Width;
Height = 1;
}
break;
}
}
@@ -106,7 +125,7 @@ namespace Terminal.Gui {
/// The radio labels to display
/// </summary>
/// <value>The radio labels.</value>
public ustring [] RadioLabels {
public ustring [] RadioLabels {
get => radioLabels.ToArray();
set {
var prevCount = radioLabels.Count;
@@ -120,6 +139,20 @@ namespace Terminal.Gui {
}
}
private void CalculateHorizontalPositions ()
{
if (displayMode == DisplayModeLayout.Horizontal) {
horizontal = new List<(int pos, int length)> ();
int start = 0;
int length = 0;
for (int i = 0; i < radioLabels.Count; i++) {
start += length;
length = radioLabels [i].RuneCount + 2;
horizontal.Add ((start, length));
}
}
}
//// Redraws the RadioGroup
//void Update(List<ustring> newRadioLabels)
//{
@@ -139,7 +172,14 @@ namespace Terminal.Gui {
Driver.SetAttribute (ColorScheme.Normal);
Clear ();
for (int i = 0; i < radioLabels.Count; i++) {
Move (0, i);
switch (DisplayMode) {
case DisplayModeLayout.Vertical:
Move (0, i);
break;
case DisplayModeLayout.Horizontal:
Move (horizontal [i].pos, 0);
break;
}
Driver.SetAttribute (ColorScheme.Normal);
Driver.AddStr (ustring.Make(new Rune[] { (i == selected ? Driver.Selected : Driver.UnSelected), ' '}));
DrawHotString (radioLabels [i], HasFocus && i == cursor, ColorScheme);
@@ -149,7 +189,14 @@ namespace Terminal.Gui {
///<inheritdoc/>
public override void PositionCursor ()
{
Move (0, cursor);
switch (DisplayMode) {
case DisplayModeLayout.Vertical:
Move (0, cursor);
break;
case DisplayModeLayout.Horizontal:
Move (horizontal [cursor].pos, 0);
break;
}
}
// TODO: Make this a global class
@@ -192,6 +239,7 @@ namespace Terminal.Gui {
get => selected;
set {
OnSelectedItemChanged (value, SelectedItem);
cursor = selected;
SetNeedsDisplay ();
}
}
@@ -264,16 +312,39 @@ namespace Terminal.Gui {
///<inheritdoc/>
public override bool MouseEvent (MouseEvent me)
{
if (!me.Flags.HasFlag (MouseFlags.Button1Clicked))
if (!me.Flags.HasFlag (MouseFlags.Button1Clicked)) {
return false;
}
if (!CanFocus) {
return false;
}
SetFocus ();
if (me.Y < radioLabels.Count) {
cursor = SelectedItem = me.Y;
SetNeedsDisplay ();
var pos = displayMode == DisplayModeLayout.Horizontal ? me.X : me.Y;
var rCount = displayMode == DisplayModeLayout.Horizontal ? horizontal.Last ().pos + horizontal.Last ().length : radioLabels.Count;
if (pos < rCount) {
var c = displayMode == DisplayModeLayout.Horizontal ? horizontal.FindIndex ((x) => x.pos <= me.X && x.pos + x.length - 2 >= me.X) : me.Y;
if (c > -1) {
cursor = SelectedItem = c;
SetNeedsDisplay ();
}
}
return true;
}
}
/// <summary>
/// Used for choose the display mode of this <see cref="RadioGroup"/>
/// </summary>
public enum DisplayModeLayout {
/// <summary>
/// Vertical mode display. It's the default.
/// </summary>
Vertical,
/// <summary>
/// Horizontal mode display.
/// </summary>
Horizontal
}
}