path: root/doc/touchpad-softbutton-state-machine.svg

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      <text x="785" y="141">NONE</text>
      <text x="785" y="155">on-entry:</text>
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      <text x="787" y="431">BOTTOM</text>
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      <text x="1088" y="425">AREA</text>
      <text x="1088" y="439">on-entry:</text>
      <text x="1088" y="453">curr =area</text>
      <text x="1088" y="467">set_pointer()</text>
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      <text x="949" y="438">finger in</text>
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      <text x="787" y="258">finger in</text>
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      <text x="1088" y="258">finger in</text>
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      <text x="952" y="586">finger in</text>
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      <text x="952" y="614">button != curr</text>
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      <text x="1813" y="429">Check state of</text>
      <text x="1813" y="443">all touches</text>
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      <text x="1813" y="41">tp_post_softbutton_buttons()</text>
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      <text x="1813" y="244">!buttons.click_pend</text>
      <text x="1813" y="258">&amp;&amp; current == old</text>
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      <text x="1999" y="241">yes</text>
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      <text x="1830" y="319">no</text>
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      <text x="1813" y="120">current = buttons.state &amp; 0x01</text>
      <text x="1813" y="134">old = buttons.old_state &amp; 0x01</text>
      <text x="1813" y="148">button = 0</text>
      <text x="1813" y="162">is_top = 0</text>
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      <text x="1813" y="630">All touches are in state none</text>
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      <text x="1820" y="704">no</text>
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      <text x="2048" y="630">buttons.click_pend = 1</text>
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      <text x="1813" y="785">(Some touches are in middle) ||</text>
      <text x="1813" y="799">((Some touches are in right) &amp;&amp;</text>
      <text x="1813" y="813">(Some touches are in left))</text>
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      <text x="2048" y="799">button = BTN_MIDDLE</text>
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      <text x="1813" y="361">current</text>
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      <text x="1813" y="971">Some touches are in right</text>
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      <text x="2048" y="971">button = BTN_RIGHT</text>
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      <text x="1813" y="1106">button = BTN_LEFT</text>
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      <text x="1814" y="1197">buttons.active = button</text>
      <text x="1814" y="1211">buttons.active_is_top = is_top</text>
      <text x="1814" y="1225">state = BUTTON_PRESSED</text>
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      <text x="1596" y="1183">button = buttons.active</text>
      <text x="1596" y="1197">is_top = buttons.active_is_top</text>
      <text x="1596" y="1211">buttons.active = 0</text>
      <text x="1596" y="1225">buttons.active_is_top = 0</text>
      <text x="1596" y="1239">state = BUTTON_RELEASED</text>
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      <text x="1703" y="1356">buttons.click_pend = 0</text>
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      <text x="1703" y="1426">button</text>
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      <text x="1703" y="1499">tp_notify_softbutton(</text>
      <text x="1703" y="1513">button, is_top, state)</text>
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