beremiz

IDE: Fix missing highlighted element in diagrams when using GTK3
wxPython4
2023-03-08, Edouard Tisserant
8c3d9159b6a9
IDE: Fix missing highlighted element in diagrams when using GTK3

- wx's logical function does not work on gtk3, and highlighting relies on it
- skipping logical funciion at all "works" but this now makes highlight opaque
- no easy fix for highlight transparency since emulated with AND Wx logical function
+ added other highlight related cosmetic fix.
// widget_button.ysl2
widget_desc("Button") {
longdesc
||
Button widget takes one boolean variable path, and reflect current true
or false value by showing "active" or "inactive" labeled element
respectively. Pressing and releasing button changes variable to true and
false respectively. Potential inconsistency caused by quick consecutive
presses on the button is mitigated by using a state machine that wait for
previous state change to be reflected on variable before applying next one.
||
shortdesc > Push button reflecting consistently given boolean variable
path name="value" accepts="HMI_BOOL" > Boolean variable
}
// Finite state machine
decl fsm(name);
decl state(name);
decl on_mouse(position);
decl on_dispatch(value);
decl jump(state);
decl show(eltname);
decl hmi_value(value);
gen_index_xhtml {
const "_push_button_fsm" fsm {
state "init" {
on_dispatch "false" jump "reflect_off";
on_dispatch "true" jump "reflect_on";
}
state "reflect_on" {
show "active";
on_mouse "down" jump "on";
on_mouse "up" jump "off";
on_dispatch "false" jump "reflect_off";
}
state "on" {
hmi_value "true";
show "active";
on_mouse "up" jump "off";
on_dispatch "false" jump "reflect_off";
}
state "reflect_off" {
show "inactive";
on_mouse "down" jump "on";
on_mouse "up" jump "off";
on_dispatch "true" jump "reflect_on";
}
state "off" {
hmi_value "false";
show "inactive";
on_mouse "down" jump "on";
on_dispatch "true" jump "reflect_on";
}
}
// State machine to drive HMI_BOOL on a potentially laggy connection
const "_button_fsm" fsm {
state "init" {
on_dispatch "false" jump "released";
on_dispatch "true" jump "pressed";
}
state "pressing" {
// show "waitactive";
hmi_value "true";
on_dispatch "true" jump "pressed";
on_mouse "up" jump "shortpress";
}
state "pressed" {
show "active";
on_mouse "up" jump "releasing";
on_dispatch "false" jump "released";
}
state "shortpress" {
on_dispatch "true" jump "releasing";
on_mouse "down" jump "pressing";
}
state "releasing" {
// show "waitinactive";
hmi_value "false";
on_dispatch "false" jump "released";
on_mouse "down" jump "shortrelease";
}
state "released" {
show "inactive";
on_mouse "down" jump "pressing";
on_dispatch "true" jump "pressed";
}
state "shortrelease" {
on_dispatch "false" jump "pressing";
on_mouse "up" jump "releasing";
}
}
template "fsm", mode="dispatch_transition" {
| switch (this.state) {
apply "state", mode="dispatch_transition";
| }
}
template "state", mode="dispatch_transition" {
| case "«@name»":
apply "on-dispatch";
| break;
}
template "on-dispatch" {
| if(value == «@value») {
apply "jump", mode="transition";
| }
}
template "fsm", mode="mouse_transition" {
param "position";
| switch (this.state) {
apply "state", mode="mouse_transition" with "position", "$position";
| }
}
template "state", mode="mouse_transition" {
param "position";
| case "«@name»":
apply "on-mouse[@position = $position]";
| break;
}
template "on-mouse" {
// up or down state is already assumed because apply statement filters it
apply "jump", mode="transition";
}
template "jump", mode="transition" {
| this.state = "«@state»";
| this.«@state»_action();
}
template "fsm", mode="actions" {
apply "state", mode="actions";
}
template "state", mode="actions" {
| «@name»_action(){
// | console.log("Entering state «@name»", this.frequency);
apply "*", mode="actions";
| }
}
template "show", mode="actions" {
| this.activity_state = «@eltname = 'active'»;
| this.request_animate();
}
template "hmi-value", mode="actions" {
| this.apply_hmi_value(0, «@value»);
}
}
function "generated_button_class" {
param "fsm";
| state = "init";
| dispatch(value) {
apply "$fsm", mode="dispatch_transition";
| }
| onmouseup(evt) {
| svg_root.removeEventListener("pointerup", this.bound_onmouseup, true);
apply "$fsm", mode="mouse_transition" with "position", "'up'";
| }
| onmousedown(evt) {
| svg_root.addEventListener("pointerup", this.bound_onmouseup, true);
apply "$fsm", mode="mouse_transition" with "position", "'down'";
| }
apply "$fsm", mode="actions";
| init() {
| this.bound_onmouseup = this.onmouseup.bind(this);
| this.element.addEventListener("pointerdown", this.onmousedown.bind(this));
| this.activity_state = undefined;
| }
}
widget_class("Button"){
| frequency = 5;
const "fsm","exsl:node-set($_button_fsm)";
call "generated_button_class" with "fsm", "$fsm";
}
widget_defs("Button") {
activable();
}
widget_class("PushButton"){
| frequency = 20;
const "fsm","exsl:node-set($_push_button_fsm)";
call "generated_button_class" with "fsm", "$fsm";
}
widget_defs("PushButton") {
activable();
}