wrapping my head around this code again

This commit is contained in:
Jeff Carr 2025-01-31 08:50:00 -06:00
parent 11465e4043
commit 75a5c7bf72
8 changed files with 142 additions and 24 deletions

View File

@ -4,7 +4,7 @@ BUILDTIME = $(shell date +%Y.%m.%d)
all: clean gocui.so
@#ldd gocui.so
gocui.so: view.pb.go goimports
gocui.so: goimports
GO111MODULE=off go build -v -work -buildmode=plugin -o gocui.so \
-ldflags "-X main.VERSION=${VERSION} -X main.BUILDTIME=${BUILDTIME} -X gui.GUIVERSION=${VERSION}"

View File

@ -10,6 +10,17 @@ import (
"go.wit.com/widget"
)
// dropdowns don't exist so this is an attempt to pretend they exist
// by having a fake window view in gocui that appears with the dropdown
// items. by detecting where the user clicks, we should be
// able to set the text of the button to that value (and
// rezise it.
// the thing is this is so damned complicated because it
// is very hard to debug this. thanks to the floating on
// screen debugging output I might be able to figure it
// it out now. maybe. notsure.
func makeDropdownView(ddItems string) *guiWidget {
newNode := addDropdown()
tk := newNode.TK.(*guiWidget)
@ -145,12 +156,12 @@ func (w *guiWidget) dropdownClicked(mouseW, mouseH int) string {
}
func dropdownUnclicked(mouseX, mouseH int) {
log.Log(GOCUI, "dropdownUnclicked() mouseup: got inside me.dropdown handler? wxh =", mouseX, mouseH)
if me.dropdownV == nil {
log.Log(GOCUI, "mouseUp() dropdownV = nil", mouseX, mouseH)
return
}
tk := me.dropdownV
log.Log(GOCUI, "mouseUp() view msgMouseDown (check here for dropdown menu click) (w,h) =", mouseX, mouseH)
log.Log(GOCUI, "mouseUp() ddview is the thing that was clicked", mouseX, mouseH)
log.Log(GOCUI, "mouseUp() find out what the string is here", mouseX, mouseH, tk.gocuiSize.h1)
log.Log(GOCUI, fmt.Sprintf("dropdownUnclicked at apparently (w=%d h=%d)", mouseX, mouseH))
log.Log(GOCUI, "dropdownUnclicked() find out what the string is here", mouseX, mouseH, tk.gocuiSize.h1)
}

89
eventsHandler.go Normal file
View File

@ -0,0 +1,89 @@
// WIT.COM Inc. 2017-2025 GPL 3.0
package main
import (
"github.com/awesome-gocui/gocui"
)
// tells 'gocui' what to call based on what key was pressed
func registerHandlers(g *gocui.Gui) {
g.SetKeybinding("", '?', gocui.ModNone, theHelp) // 'h' toggles on and off the help menu
g.SetKeybinding("", 'r', gocui.ModNone, widgetRefresh) // screen refresh
g.SetKeybinding("", 'w', gocui.ModNone, doWindow) // close all windows
g.SetKeybinding("", 'q', gocui.ModNone, doExit) // exit
g.SetKeybinding("", gocui.KeyCtrlC, gocui.ModNone, doExit) // exit
g.SetKeybinding("", gocui.KeyCtrlV, gocui.ModNone, doPanic) // forced panic
// debugging
g.SetKeybinding("", 'd', gocui.ModNone, theLetterD) // 'd' toggles on and off debugging buttons
g.SetKeybinding("", gocui.KeyCtrlD, gocui.ModNone, openDebuggger) // open the debugger
g.SetKeybinding("", 'L', gocui.ModNone, dumpWidgets) // list all widgets
g.SetKeybinding("", 'M', gocui.ModNone, dumpWidgetPlacement) // list all widgets with positions
}
func doExit(g *gocui.Gui, v *gocui.View) error {
return nil
}
func doPanic(g *gocui.Gui, v *gocui.View) error {
return nil
}
func dumpWidgets(g *gocui.Gui, v *gocui.View) error {
return nil
}
func dumpWidgetPlacement(g *gocui.Gui, v *gocui.View) error {
return nil
}
func openDebuggger(g *gocui.Gui, v *gocui.View) error {
return nil
}
// is run whenever anyone hits 'd' (in an open space)
func theLetterD(g *gocui.Gui, v *gocui.View) error {
// widgets that don't have physical existance in
// a display toolkit are hidden. In the case
// of gocui, they are set as not 'visible' and put offscreen
// or have the size set to zero
// (hopefully anyway) lots of things with the toolkit
// still don't work
fakeStartWidth = me.FakeW
fakeStartHeight = me.TabH + me.FramePadH
if showDebug {
showFake()
showDebug = false
} else {
hideFake()
showDebug = true
}
return nil
}
func theHelp(g *gocui.Gui, v *gocui.View) error {
if showHelp {
helplayout()
showHelp = false
if me.dropdownV == nil {
me.dropdownV = makeDropdownView("addWidget() ddview")
}
me.dropdownV.Show()
} else {
me.baseGui.DeleteView("help")
showHelp = true
me.dropdownV.Hide()
}
return nil
}
func widgetRefresh(g *gocui.Gui, v *gocui.View) error {
return nil
}
func doWindow(g *gocui.Gui, v *gocui.View) error {
return nil
}

View File

@ -1,3 +1,6 @@
// Copyright 2017-2025 WIT.COM Inc. All rights reserved.
// Use of this source code is (now) governed by the GPL 3.0
// Copyright 2014 The gocui Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
@ -13,8 +16,6 @@ import (
"go.wit.com/log"
)
var ecount int = 3
// Thanks to the gocui developers -- your package kicks ass
// This function is called on every event. It is a callback function from the gocui package
// which has an excellent implementation. While gocui handles things like text highlighting
@ -22,7 +23,7 @@ var ecount int = 3
// complicated console handling, it sends events here in a clean way.
// This is equivalent to the linux command xev (apt install x11-utils)
func gocuiEvent(g *gocui.Gui) error {
ecount += 1
me.ecount += 1
maxX, maxY := g.Size()
mx, my := g.MousePosition()
log.Verbose("handleEvent() START", maxX, maxY, mx, my, msgMouseDown)
@ -36,7 +37,7 @@ func gocuiEvent(g *gocui.Gui) error {
// setOutput(me.logStdout)
// me.logStdout.Write("test out")
w := me.logStdout.TK.(*guiWidget)
msg := fmt.Sprintf("test out gocuiEvent() %d\n", ecount)
msg := fmt.Sprintf("test out gocuiEvent() %d\n", me.ecount)
w.Write([]byte(msg))
// log.CaptureMode(w)
log.Log(NOW, "logStdout test out")

View File

@ -20,7 +20,9 @@ var helpText []string = []string{"KEYBINDINGS",
"s/h: show/hide all widgets",
"L: list all widgets",
"M: list all widgets positions",
"\x1b[0;32m  \x1b[0m",
"\x1b[0;32m  \x1b[0m", // this was a test to see what might be
// possible with gocui. it doesn't seem to work for me
"q: quit()",
"p: panic()",
"o: show Stdout",

View File

@ -63,19 +63,7 @@ func defaultKeybindings(g *gocui.Gui) error {
func addDebugKeys(g *gocui.Gui) {
// show debugging buttons
g.SetKeybinding("", 'd', gocui.ModNone,
func(g *gocui.Gui, v *gocui.View) error {
fakeStartWidth = me.FakeW
fakeStartHeight = me.TabH + me.FramePadH
if showDebug {
showFake()
showDebug = false
} else {
hideFake()
showDebug = true
}
return nil
})
g.SetKeybinding("", 'd', gocui.ModNone, theLetterD)
// display the help menu
g.SetKeybinding("", '?', gocui.ModNone,

View File

@ -2,6 +2,13 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// note by jcarr@wit.com in 2025: this is one of the coolest
// things ever what this does. I've tried to improve
// it while I've been working on making a gocui
// GO plugin so it can be generalized as a useful
// console interface. Well done everyone that has
// contributed to this gocui project !!!
package main
import (
@ -27,8 +34,13 @@ func mouseMove(g *gocui.Gui) {
func msgDown(g *gocui.Gui, v *gocui.View) error {
initialMouseX, initialMouseY = g.MousePosition()
// debugging output
log.Log(GOCUI, "msgDown() X,Y", initialMouseX, initialMouseY)
if vx, vy, _, _, err := g.ViewPosition("msg"); err == nil {
//
vx, vy, _, _, err := g.ViewPosition("msg")
if err == nil {
xOffset = initialMouseX - vx
yOffset = initialMouseY - vy
msgMouseDown = true
@ -40,6 +52,7 @@ func mouseUp(g *gocui.Gui, v *gocui.View) error {
w, h := g.MousePosition()
dropdownUnclicked(w, h)
if msgMouseDown {
msgMouseDown = false
if movingMsg {
@ -55,16 +68,26 @@ func mouseUp(g *gocui.Gui, v *gocui.View) error {
return nil
}
// func isMouseInMsg
// this is where you have to figure out what
// widget was underneath so you can active
// the right response for the toolkit user's app
func mouseDown(g *gocui.Gui, v *gocui.View) error {
mx, my := g.MousePosition()
if vx0, vy0, vx1, vy1, err := g.ViewPosition("msg"); err == nil {
vx0, vy0, vx1, vy1, err := g.ViewPosition("msg")
if err == nil {
if mx >= vx0 && mx <= vx1 && my >= vy0 && my <= vy1 {
return msgDown(g, v)
}
}
globalMouseDown = true
maxX, _ := g.Size()
findUnderMouse()
msg := fmt.Sprintf("mouseDown() Mouse really down at: %d,%d", mx, my)
// dropdownClicked(mx, my)
x := mx - len(msg)/2

View File

@ -102,6 +102,10 @@ type config struct {
// used to attempt to write to the stdout window
fakefile *FakeFile
// just a counter for curiosity.
// counts how many mouse and keyboard events have occurred
ecount int
}
// deprecate these