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List:       kde-panel-devel
Subject:    D6392: [Panel Config] Scrolling over size button increments size by 1 and shows current thickness
From:       Kai Uwe Broulik <noreply () phabricator ! kde ! org>
Date:       2017-06-26 13:42:55
Message-ID: 20170626134251.86788.914455745B7E563B () phabricator ! kde ! org
[Download RAW message or body]

broulik added a comment.


  I like the idea of showing the thickness in the button. My suggestion would be add \
a `Timer` which you `restart()` when you change the panel thickness (you need to try \
whether in `onThicknessChanged` is sufficient or doing that explicitly in \
`onWheelEvent` and/or `onPositionChanged` and then bind the text to whether it's \
running, this way you don't break any bindings but just have it work like magic ;) \
for example:  
    Timer {
        id: panelResizeSizeHintTimer
        interval: 1000
    }
    
    ...
    
    Button {
        text: panelResizeHintTimer.running ? panel.thickness : i18n("Width") // don't \
                forget "Height" for horizontal panels
        ...
        onWheel: {
            // wheel stuff here
            panelResizeHintTimer.restart()
        ...
    }
  
  (QtQuick `Timer` `restart` will start it if not running and restart it if already \
running, it also runs only once by default which is what we want here)

INLINE COMMENTS

> SizeHandle.qml:123
> +
> +        onWheelMoved: {
> +            if (wheel.delta > 0) {

I don't know exactly how `MouseEventListener` behaves but in `MouseArea` you get a \
ton of `onWheel` events for touchpads (which scroll pixel-precisely), potentially \
causing you to making your panel enormous accidentally

> SizeHandle.qml:125
> +            if (wheel.delta > 0) {
> +                panel.thickness = Math.max(units.gridUnit, panel.thickness + 1);
> +            } else if (wheel.delta < 0) {

I think there's also a maximum size enforced (half of `screenToFollow.geometry`), \
it's somewhat hidden in the complex `onPositionChanged` code

> SizeHandle.qml:129
> +            } else {
> +                return
> +            }

Missing semicolon here and below, also can it ever get 0 anyway?

REPOSITORY
  R119 Plasma Desktop

REVISION DETAIL
  https://phabricator.kde.org/D6392

To: Zren, #plasma
Cc: broulik, plasma-devel, ZrenBot, progwolff, lesliezhai, ali-mohamed, \
jensreuterberg, abetts, sebas, apol, mart, lukas


[Attachment #3 (unknown)]

<table><tr><td style="">broulik added a comment.
</td><a style="text-decoration: none; padding: 4px 8px; margin: 0 8px 8px; float: \
right; color: #464C5C; font-weight: bold; border-radius: 3px; background-color: \
#F7F7F9; background-image: linear-gradient(to bottom,#fff,#f1f0f1); display: \
inline-block; border: 1px solid rgba(71,87,120,.2);" \
href="https://phabricator.kde.org/D6392" rel="noreferrer">View \
Revision</a></tr></table><br /><div><div><p>I like the idea of showing the thickness \
in the button. My suggestion would be add a <tt style="background: #ebebeb; \
font-size: 13px;">Timer</tt> which you <tt style="background: #ebebeb; font-size: \
13px;">restart()</tt> when you change the panel thickness (you need to try whether in \
<tt style="background: #ebebeb; font-size: 13px;">onThicknessChanged</tt> is \
sufficient or doing that explicitly in <tt style="background: #ebebeb; font-size: \
13px;">onWheelEvent</tt> and/or <tt style="background: #ebebeb; font-size: \
13px;">onPositionChanged</tt> and then bind the text to whether it&#039;s running, \
this way you don&#039;t break any bindings but just have it work like magic ;) for \
example:</p>

<div class="remarkup-code-block" style="margin: 12px 0;" data-code-lang="text" \
data-sigil="remarkup-code-block"><pre class="remarkup-code" style="font: 11px/15px \
&quot;Menlo&quot;, &quot;Consolas&quot;, &quot;Monaco&quot;, monospace; padding: \
12px; margin: 0; background: rgba(71, 87, 120, 0.08);">Timer {  id: \
panelResizeSizeHintTimer  interval: 1000
}

...

Button {
    text: panelResizeHintTimer.running ? panel.thickness : i18n(&quot;Width&quot;) // \
                don&#039;t forget &quot;Height&quot; for horizontal panels
    ...
    onWheel: {
        // wheel stuff here
        panelResizeHintTimer.restart()
    ...
}</pre></div>

<p>(QtQuick <tt style="background: #ebebeb; font-size: 13px;">Timer</tt> <tt \
style="background: #ebebeb; font-size: 13px;">restart</tt> will start it if not \
running and restart it if already running, it also runs only once by default which is \
what we want here)</p></div></div><br /><div><strong>INLINE \
COMMENTS</strong><div><div style="margin: 6px 0 12px 0;"><div style="border: 1px \
solid #C7CCD9; border-radius: 3px;"><div style="padding: 0; background: #F7F7F7; \
border-color: #e3e4e8; border-style: solid; border-width: 0 0 1px 0; margin: 0;"><div \
style="color: #74777d; background: #eff2f4; padding: 6px 8px; overflow: hidden;"><a \
style="float: right; text-decoration: none;" \
href="https://phabricator.kde.org/D6392#inline-26336" rel="noreferrer">View \
Inline</a><span style="color: #4b4d51; font-weight: \
bold;">SizeHandle.qml:123</span></div> <div style="font: 11px/15px &quot;Menlo&quot;, \
&quot;Consolas&quot;, &quot;Monaco&quot;, monospace; white-space: pre-wrap; clear: \
both; padding: 4px 0; margin: 0;"><div style="padding: 0 8px; margin: 0 4px; \
background: rgba(151, 234, 151, .6);">        <span style="color: \
#aa4000">onWheelMoved:</span> <span class="p">{</span> </div><div style="padding: 0 \
8px; margin: 0 4px; background: rgba(151, 234, 151, .6);">            <span \
style="color: #aa4000">if</span> <span class="p">(</span><span style="color: \
#004012">wheel</span><span class="p">.</span><span style="color: \
#004012">delta</span> <span style="color: #aa2211">&gt;</span> <span style="color: \
#601200">0</span><span class="p">)</span> <span class="p">{</span> </div></div></div>
<div style="margin: 8px 0; padding: 0 12px;"><p style="padding: 0; margin: 8px;">I \
don&#039;t know exactly how <tt style="background: #ebebeb; font-size: \
13px;">MouseEventListener</tt> behaves but in <tt style="background: #ebebeb; \
font-size: 13px;">MouseArea</tt> you get a ton of <tt style="background: #ebebeb; \
font-size: 13px;">onWheel</tt> events for touchpads (which scroll pixel-precisely), \
potentially causing you to making your panel enormous accidentally</p></div></div><br \
/><div style="border: 1px solid #C7CCD9; border-radius: 3px;"><div style="padding: 0; \
background: #F7F7F7; border-color: #e3e4e8; border-style: solid; border-width: 0 0 \
1px 0; margin: 0;"><div style="color: #74777d; background: #eff2f4; padding: 6px 8px; \
overflow: hidden;"><a style="float: right; text-decoration: none;" \
href="https://phabricator.kde.org/D6392#inline-26337" rel="noreferrer">View \
Inline</a><span style="color: #4b4d51; font-weight: \
bold;">SizeHandle.qml:125</span></div> <div style="font: 11px/15px &quot;Menlo&quot;, \
&quot;Consolas&quot;, &quot;Monaco&quot;, monospace; white-space: pre-wrap; clear: \
both; padding: 4px 0; margin: 0;"><div style="padding: 0 8px; margin: 0 4px; \
background: rgba(151, 234, 151, .6);">            <span style="color: \
#aa4000">if</span> <span class="p">(</span><span style="color: \
#004012">wheel</span><span class="p">.</span><span style="color: \
#004012">delta</span> <span style="color: #aa2211">&gt;</span> <span style="color: \
#601200">0</span><span class="p">)</span> <span class="p">{</span> </div><div \
style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);">          \
<span style="color: #004012">panel</span><span class="p">.</span><span style="color: \
#004012">thickness</span> <span style="color: #aa2211">=</span> <span style="color: \
#304a96">Math</span><span class="p">.</span><span style="color: \
#004012">max</span><span class="p">(</span><span style="color: \
#004012">units</span><span class="p">.</span><span style="color: \
#004012">gridUnit</span><span class="p">,</span> <span style="color: \
#004012">panel</span><span class="p">.</span><span style="color: \
#004012">thickness</span> <span style="color: #aa2211">+</span> <span style="color: \
#601200">1</span><span class="p">);</span> </div><div style="padding: 0 8px; margin: \
0 4px; background: rgba(151, 234, 151, .6);">            <span class="p">}</span> \
<span style="color: #aa4000">else</span> <span style="color: #aa4000">if</span> <span \
class="p">(</span><span style="color: #004012">wheel</span><span \
class="p">.</span><span style="color: #004012">delta</span> <span style="color: \
#aa2211">&lt;</span> <span style="color: #601200">0</span><span class="p">)</span> \
<span class="p">{</span> </div></div></div>
<div style="margin: 8px 0; padding: 0 12px;"><p style="padding: 0; margin: 8px;">I \
think there&#039;s also a maximum size enforced (half of <tt style="background: \
#ebebeb; font-size: 13px;">screenToFollow.geometry</tt>), it&#039;s somewhat hidden \
in the complex <tt style="background: #ebebeb; font-size: \
13px;">onPositionChanged</tt> code</p></div></div><br /><div style="border: 1px solid \
#C7CCD9; border-radius: 3px;"><div style="padding: 0; background: #F7F7F7; \
border-color: #e3e4e8; border-style: solid; border-width: 0 0 1px 0; margin: 0;"><div \
style="color: #74777d; background: #eff2f4; padding: 6px 8px; overflow: hidden;"><a \
style="float: right; text-decoration: none;" \
href="https://phabricator.kde.org/D6392#inline-26338" rel="noreferrer">View \
Inline</a><span style="color: #4b4d51; font-weight: \
bold;">SizeHandle.qml:129</span></div> <div style="font: 11px/15px &quot;Menlo&quot;, \
&quot;Consolas&quot;, &quot;Monaco&quot;, monospace; white-space: pre-wrap; clear: \
both; padding: 4px 0; margin: 0;"><div style="padding: 0 8px; margin: 0 4px; \
background: rgba(151, 234, 151, .6);">            <span class="p">}</span> <span \
style="color: #aa4000">else</span> <span class="p">{</span> </div><div \
style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);">          \
<span style="color: #aa4000">return</span> </div><div style="padding: 0 8px; margin: \
0 4px; background: rgba(151, 234, 151, .6);">            <span class="p">}</span> \
</div></div></div> <div style="margin: 8px 0; padding: 0 12px;"><p style="padding: 0; \
margin: 8px;">Missing semicolon here and below, also can it ever get 0 \
anyway?</p></div></div></div></div></div><br \
/><div><strong>REPOSITORY</strong><div><div>R119 Plasma Desktop</div></div></div><br \
/><div><strong>REVISION DETAIL</strong><div><a \
href="https://phabricator.kde.org/D6392" \
rel="noreferrer">https://phabricator.kde.org/D6392</a></div></div><br \
/><div><strong>To: </strong>Zren, Plasma<br /><strong>Cc: </strong>broulik, \
plasma-devel, ZrenBot, progwolff, lesliezhai, ali-mohamed, jensreuterberg, abetts, \
sebas, apol, mart, lukas<br /></div>



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