300 lines
6.7 KiB
Go
300 lines
6.7 KiB
Go
// Copyright 2017-2025 WIT.COM Inc. All rights reserved.
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// Use of this source code is governed by the GPL 3.0
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package main
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import (
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"fmt"
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"github.com/awesome-gocui/gocui"
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"go.wit.com/widget"
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)
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/*
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gocui defines the offset like this:
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width -> increases to the right
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---------------------------------- hieght
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| H = 1 | increases
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| | |
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| W = 1 W = 18 | |
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| | v
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| H = 5 | downwards
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-------------------------------------
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*/
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// change over to this name
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// returns all the widgets under (X,H) that are visible
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func findByXY(w int, h int) []*guiWidget {
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rootW := me.treeRoot.TK.(*guiWidget)
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// this searches the binary tree recursively (function is right below)
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return rootW.findByXYreal(w, h)
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}
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// this checks a widget to see if it is under (W,H), then checks the widget's children
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// anything that matches is passed back as an array of widgets
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func (tk *guiWidget) findByXYreal(w int, h int) []*guiWidget {
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var widgets []*guiWidget
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if !tk.Visible() {
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// ignore widgets that are not visible
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} else {
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// check the location to see if this is under (W,H)
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// if it is, return this widget
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if (tk.gocuiSize.w0 <= w) && (w <= tk.gocuiSize.w1) &&
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(tk.gocuiSize.h0 <= h) && (h <= tk.gocuiSize.h1) {
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widgets = append(widgets, tk)
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// log.Log(GOCUI, "findByXY() found", widget.node.WidgetType, w, h)
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}
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}
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// tk.verifyRect()
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// search through the children widgets in the binary tree
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for _, child := range tk.children {
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widgets = append(widgets, child.findByXYreal(w, h)...)
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}
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return widgets
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}
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// returns all the windows from the root of the binary tree
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func findWindows() []*guiWidget {
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rootW := me.treeRoot.TK.(*guiWidget)
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return rootW.findWindows()
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}
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// walk the binary tree looking for WidgetType == Window
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func (tk *guiWidget) findWindows() []*guiWidget {
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var found []*guiWidget
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if tk.node.WidgetType == widget.Window {
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found = append(found, tk)
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}
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for _, child := range tk.children {
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found = append(found, child.findWindows()...)
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}
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return found
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}
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func (tk *guiWidget) setFullSize() bool {
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r := tk.getFullSize()
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var changed bool
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if tk.full.w0 != r.w0 {
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tk.full.w0 = r.w0
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changed = true
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}
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if tk.full.w1 != r.w1 {
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tk.full.w1 = r.w1
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changed = true
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}
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if tk.full.h0 != r.h0 {
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tk.full.h0 = r.h0
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changed = true
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}
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if tk.full.h1 != r.h1 {
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tk.full.h1 = r.h1
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changed = true
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}
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if changed {
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tk.dumpWidget(fmt.Sprintf("setFullSize(changed)"))
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}
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return changed
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}
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func (tk *guiWidget) gridFullSize() rectType {
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var r rectType
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var first bool = true
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for _, child := range tk.children {
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cr := child.getFullSize()
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if cr.Width() == 0 && cr.Height() == 0 {
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// ignore widgets of zero size?
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continue
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}
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if first {
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// use the lowest width and hight from children widgets
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r.w0 = cr.w0
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r.h0 = cr.h0
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r.w1 = cr.w1
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r.h1 = cr.h1
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first = false
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child.dumpWidget(fmt.Sprintf("grid(f)"))
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continue
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}
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child.dumpWidget(fmt.Sprintf("grid()"))
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// use the lowest width and hight from children widgets
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if r.w0 > cr.w0 {
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r.w0 = cr.w0
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}
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if r.h0 > cr.h0 {
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r.h0 = cr.h0
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}
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// use the highest width and hight from children widgets
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if r.w1 < cr.w1 {
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r.w1 = cr.w1
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}
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if r.h1 < cr.h1 {
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r.h1 = cr.h1
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}
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}
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tk.full.w0 = r.w0
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tk.full.w1 = r.w1
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tk.full.h0 = r.h0
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tk.full.h1 = r.h1
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return r
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}
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func (tk *guiWidget) buttonFullSize() rectType {
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var r rectType
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r.w0 = tk.gocuiSize.w0
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r.w1 = tk.gocuiSize.w1
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r.h0 = tk.gocuiSize.h0
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r.h1 = tk.gocuiSize.h1
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// try setting the full values here ? is this right?
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tk.full.w0 = r.w0
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tk.full.w1 = r.w1
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tk.full.h0 = r.h0
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tk.full.h1 = r.h1
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return r
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}
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// this checks a widget to see if it is under (W,H), then checks the widget's children
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// anything that matches is passed back as an array of widgets
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func (tk *guiWidget) getFullSize() rectType {
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var r rectType
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if tk.node.WidgetType == widget.Grid {
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return tk.gridFullSize()
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}
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// these are 'simple' widgets
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// the full size is exactly what gocui uses
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switch tk.node.WidgetType {
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case widget.Label:
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return tk.buttonFullSize()
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case widget.Button:
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return tk.buttonFullSize()
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case widget.Checkbox:
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return tk.buttonFullSize()
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case widget.Dropdown:
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return tk.buttonFullSize()
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default:
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}
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if tk.v == nil {
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r.w0 = tk.full.w0
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r.w1 = tk.full.w1
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r.h0 = tk.full.h0
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r.h1 = tk.full.h1
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} else {
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r.w0 = tk.gocuiSize.w0
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r.w1 = tk.gocuiSize.w1
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r.h0 = tk.gocuiSize.h0
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r.h1 = tk.gocuiSize.h1
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}
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// search through the children widgets in the binary tree
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for _, child := range tk.children {
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cr := child.getFullSize()
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/* this didn't make things work either
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if child.v == nil {
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continue
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}
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*/
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// use the lowest width and hight from children widgets
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if r.w0 > cr.w0 {
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r.w0 = cr.w0
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}
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if r.h0 > cr.h0 {
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r.h0 = cr.h0
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}
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// use the highest width and hight from children widgets
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if r.w1 < cr.w1 {
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r.w1 = cr.w1
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}
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if r.h1 < cr.h1 {
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r.h1 = cr.h1
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}
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}
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// try setting the full values here ? is this right?
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tk.full.w0 = r.w0
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tk.full.w1 = r.w1
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tk.full.h0 = r.h0
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tk.full.h1 = r.h1
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return r
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}
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// returns the "highest priority widget under the mouse
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func findUnderMouse() *guiWidget {
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w, h := me.baseGui.MousePosition()
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widgets := findByXY(w, h)
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// search through all the widgets that were below the mouse click
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var found *guiWidget
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for _, w := range widgets {
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// prioritize window buttons. This means if some code covers
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// up the window widgets, then it will ignore everything else
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// and allow the user (hopefully) to redraw or switch windows
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// TODO: display the window widgets on top
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if w.node.WidgetType == widget.Window {
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return w
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}
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}
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// return anything else that is interactive
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for _, w := range widgets {
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if w.node.WidgetType == widget.Button {
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return w
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}
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if w.node.WidgetType == widget.Combobox {
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return w
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}
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if w.node.WidgetType == widget.Checkbox {
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return w
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}
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w.dumpWidget("findUnderMouse() found something unknown")
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found = w
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}
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// maybe something else was found
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return found
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}
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// panics. todo: fix ctrl-mouse click?
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// find the widget under the mouse click
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func ctrlDown(g *gocui.Gui, v *gocui.View) error {
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var found *guiWidget
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// var widgets []*node
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// var f func (n *node)
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found = findUnderMouse()
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if me.ctrlDown == nil {
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setupCtrlDownWidget()
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var tk *guiWidget
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tk = me.ctrlDown.TK.(*guiWidget)
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tk.labelN = found.String()
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tk.cuiName = "ctrlDown"
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// me.ctrlDown.parent = me.rootNode
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}
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var tk *guiWidget
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tk = me.ctrlDown.TK.(*guiWidget)
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if found == nil {
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found = me.treeRoot.TK.(*guiWidget)
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}
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tk.labelN = found.String()
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newR := found.realGocuiSize()
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tk.gocuiSize.w0 = newR.w0
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tk.gocuiSize.h0 = newR.h0
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tk.gocuiSize.w1 = newR.w1
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tk.gocuiSize.h1 = newR.h1
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return nil
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}
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