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<h1 class="title"><a href="/bkurdali">Bassam Kurdali</a> / <a class="project-item-select-holder" href="/bkurdali/blender-addon-experiments">blender-addon-experiments</a></h1>
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<div class="blob-content" data-blob-id="ff646ecdfc24e59b217bd34cdc5b71ea7c69f0e6">
<pre class="code highlight"><code><span id="LC1" class="line"><span class="c"># ##### BEGIN GPL LICENSE BLOCK #####</span></span>
<span id="LC2" class="line"><span class="c">#</span></span>
<span id="LC3" class="line"><span class="c">#  This program is free software; you can redistribute it and/or</span></span>
<span id="LC4" class="line"><span class="c">#  modify it under the terms of the GNU General Public License</span></span>
<span id="LC5" class="line"><span class="c">#  as published by the Free Software Foundation; either version 2</span></span>
<span id="LC6" class="line"><span class="c">#  of the License, or (at your option) any later version.</span></span>
<span id="LC7" class="line"><span class="c">#</span></span>
<span id="LC8" class="line"><span class="c">#  This program is distributed in the hope that it will be useful,</span></span>
<span id="LC9" class="line"><span class="c">#  but WITHOUT ANY WARRANTY; without even the implied warranty of</span></span>
<span id="LC10" class="line"><span class="c">#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</span></span>
<span id="LC11" class="line"><span class="c">#  GNU General Public License for more details.</span></span>
<span id="LC12" class="line"><span class="c">#</span></span>
<span id="LC13" class="line"><span class="c">#  You should have received a copy of the GNU General Public License</span></span>
<span id="LC14" class="line"><span class="c">#  along with this program; if not, write to the Free Software Foundation,</span></span>
<span id="LC15" class="line"><span class="c">#  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.</span></span>
<span id="LC16" class="line"><span class="c">#</span></span>
<span id="LC17" class="line"><span class="c"># ##### END GPL LICENSE BLOCK #####</span></span>
<span id="LC18" class="line"></span>
<span id="LC19" class="line"><span class="c"># &lt;pep8-80 compliant&gt;</span></span>
<span id="LC20" class="line"><span class="kn">import</span> <span class="nn">bpy</span></span>
<span id="LC21" class="line"><span class="kn">from</span> <span class="nn">bpy.app.handlers</span> <span class="kn">import</span> <span class="n">persistent</span></span>
<span id="LC22" class="line"></span>
<span id="LC23" class="line"><span class="n">bl_info</span> <span class="o">=</span> <span class="p">{</span></span>
<span id="LC24" class="line">    <span class="s">'name'</span><span class="p">:</span> <span class="s">'Text FX'</span><span class="p">,</span></span>
<span id="LC25" class="line">    <span class="s">'author'</span><span class="p">:</span> <span class="s">'Bassam Kurdali'</span><span class="p">,</span></span>
<span id="LC26" class="line">    <span class="s">'version'</span><span class="p">:</span> <span class="s">'1.0'</span><span class="p">,</span></span>
<span id="LC27" class="line">    <span class="s">'blender'</span><span class="p">:</span> <span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">2</span><span class="p">),</span></span>
<span id="LC28" class="line">    <span class="s">'location'</span><span class="p">:</span> <span class="s">'Properties Editor, Text Context'</span><span class="p">,</span></span>
<span id="LC29" class="line">    <span class="s">'description'</span><span class="p">:</span> <span class="s">'Text Animation Effects, formerly Typewriter Text'</span><span class="p">,</span></span>
<span id="LC30" class="line">    <span class="s">'url'</span><span class="p">:</span> <span class="s">'http://urchn.org'</span><span class="p">,</span></span>
<span id="LC31" class="line">    <span class="s">'category'</span><span class="p">:</span> <span class="s">'Text'</span><span class="p">}</span></span>
<span id="LC32" class="line"></span>
<span id="LC33" class="line"><span class="n">__bpydoc__</span> <span class="o">=</span> <span class="s">"""</span></span>
<span id="LC34" class="line"><span class="s">Typewriter Text Animation For Font Objects</span></span>
<span id="LC35" class="line"></span>
<span id="LC36" class="line"><span class="s">"""</span></span>
<span id="LC37" class="line"></span>
<span id="LC38" class="line"></span>
<span id="LC39" class="line"><span class="k">def</span> <span class="nf">uptext</span><span class="p">(</span><span class="n">text</span><span class="p">):</span></span>
<span id="LC40" class="line">    <span class="s">'''</span></span>
<span id="LC41" class="line"><span class="s">    slice the source text up to the character_count</span></span>
<span id="LC42" class="line"><span class="s">    '''</span></span>
<span id="LC43" class="line">    <span class="n">source</span> <span class="o">=</span> <span class="n">text</span><span class="o">.</span><span class="n">source_text</span></span>
<span id="LC44" class="line">    <span class="k">if</span> <span class="n">source</span> <span class="ow">in</span> <span class="n">bpy</span><span class="o">.</span><span class="n">data</span><span class="o">.</span><span class="n">texts</span><span class="p">:</span></span>
<span id="LC45" class="line">        <span class="n">text</span><span class="o">.</span><span class="n">body</span> <span class="o">=</span> <span class="n">bpy</span><span class="o">.</span><span class="n">data</span><span class="o">.</span><span class="n">texts</span><span class="p">[</span><span class="n">source</span><span class="p">]</span><span class="o">.</span><span class="n">as_string</span><span class="p">()[:</span><span class="n">text</span><span class="o">.</span><span class="n">character_count</span><span class="p">]</span></span>
<span id="LC46" class="line">    <span class="k">else</span><span class="p">:</span></span>
<span id="LC47" class="line">        <span class="n">text</span><span class="o">.</span><span class="n">body</span> <span class="o">=</span> <span class="n">source</span><span class="p">[:</span><span class="n">text</span><span class="o">.</span><span class="n">character_count</span><span class="p">]</span></span>
<span id="LC48" class="line"></span>
<span id="LC49" class="line"></span>
<span id="LC50" class="line"><span class="nd">@persistent</span>   </span>
<span id="LC51" class="line"><span class="k">def</span> <span class="nf">typewriter_text_update_frame</span><span class="p">(</span><span class="n">scene</span><span class="p">):</span></span>
<span id="LC52" class="line">    <span class="s">'''</span></span>
<span id="LC53" class="line"><span class="s">    sadly we need this for frame change updating</span></span>
<span id="LC54" class="line"><span class="s">    '''</span></span>
<span id="LC55" class="line">    <span class="k">for</span> <span class="n">text</span> <span class="ow">in</span> <span class="n">scene</span><span class="o">.</span><span class="n">objects</span><span class="p">:</span></span>
<span id="LC56" class="line">        <span class="k">if</span> <span class="n">text</span><span class="o">.</span><span class="nb">type</span> <span class="o">==</span> <span class="s">'FONT'</span> <span class="ow">and</span> <span class="n">text</span><span class="o">.</span><span class="n">data</span><span class="o">.</span><span class="n">use_animated_text</span><span class="p">:</span></span>
<span id="LC57" class="line">            <span class="n">uptext</span><span class="p">(</span><span class="n">text</span><span class="o">.</span><span class="n">data</span><span class="p">)</span></span>
<span id="LC58" class="line"></span>
<span id="LC59" class="line"></span>
<span id="LC60" class="line"><span class="k">def</span> <span class="nf">update_func</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span></span>
<span id="LC61" class="line">    <span class="s">'''</span></span>
<span id="LC62" class="line"><span class="s">    updates when changing the value</span></span>
<span id="LC63" class="line"><span class="s">    '''</span></span>
<span id="LC64" class="line">    <span class="n">uptext</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span></span>
<span id="LC65" class="line"></span>
<span id="LC66" class="line"></span>
<span id="LC67" class="line"><span class="k">class</span> <span class="nc">TEXT_PT_Typewriter</span><span class="p">(</span><span class="n">bpy</span><span class="o">.</span><span class="n">types</span><span class="o">.</span><span class="n">Panel</span><span class="p">):</span></span>
<span id="LC68" class="line">    <span class="s">'''</span></span>
<span id="LC69" class="line"><span class="s">    Typewriter Effect Panel</span></span>
<span id="LC70" class="line"><span class="s">    '''</span></span>
<span id="LC71" class="line">    <span class="n">bl_label</span> <span class="o">=</span> <span class="s">"Typewriter Effect"</span></span>
<span id="LC72" class="line">    <span class="n">bl_idname</span> <span class="o">=</span> <span class="s">"TEXT_PT_Typewriter"</span></span>
<span id="LC73" class="line">    <span class="n">bl_space_type</span> <span class="o">=</span> <span class="s">'PROPERTIES'</span></span>
<span id="LC74" class="line">    <span class="n">bl_region_type</span> <span class="o">=</span> <span class="s">'WINDOW'</span></span>
<span id="LC75" class="line">    <span class="n">bl_context</span> <span class="o">=</span> <span class="s">'data'</span></span>
<span id="LC76" class="line"></span>
<span id="LC77" class="line">    <span class="nd">@classmethod</span></span>
<span id="LC78" class="line">    <span class="k">def</span> <span class="nf">poll</span><span class="p">(</span><span class="n">cls</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span></span>
<span id="LC79" class="line">        <span class="k">return</span> <span class="n">context</span><span class="o">.</span><span class="n">active_object</span> <span class="ow">and</span> <span class="n">context</span><span class="o">.</span><span class="n">active_object</span><span class="o">.</span><span class="nb">type</span> <span class="o">==</span> <span class="s">'FONT'</span></span>
<span id="LC80" class="line"></span>
<span id="LC81" class="line">    <span class="k">def</span> <span class="nf">draw_header</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span></span>
<span id="LC82" class="line">        <span class="n">text</span> <span class="o">=</span> <span class="n">context</span><span class="o">.</span><span class="n">active_object</span><span class="o">.</span><span class="n">data</span></span>
<span id="LC83" class="line">        <span class="n">layout</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">layout</span></span>
<span id="LC84" class="line">        <span class="n">layout</span><span class="o">.</span><span class="n">prop</span><span class="p">(</span><span class="n">text</span><span class="p">,</span> <span class="s">'use_animated_text'</span><span class="p">,</span> <span class="n">text</span><span class="o">=</span><span class="s">""</span><span class="p">)</span></span>
<span id="LC85" class="line"></span>
<span id="LC86" class="line">    <span class="k">def</span> <span class="nf">draw</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span></span>
<span id="LC87" class="line">        <span class="n">st</span> <span class="o">=</span> <span class="n">context</span><span class="o">.</span><span class="n">space_data</span></span>
<span id="LC88" class="line">        <span class="n">text</span> <span class="o">=</span> <span class="n">context</span><span class="o">.</span><span class="n">active_object</span><span class="o">.</span><span class="n">data</span></span>
<span id="LC89" class="line">        <span class="n">layout</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">layout</span></span>
<span id="LC90" class="line">        <span class="n">layout</span><span class="o">.</span><span class="n">prop</span><span class="p">(</span><span class="n">text</span><span class="p">,</span> <span class="s">'character_count'</span><span class="p">)</span></span>
<span id="LC91" class="line">        <span class="n">layout</span><span class="o">.</span><span class="n">prop</span><span class="p">(</span><span class="n">text</span><span class="p">,</span> <span class="s">'use_text_datablock'</span><span class="p">)</span></span>
<span id="LC92" class="line">        <span class="k">if</span> <span class="ow">not</span> <span class="n">text</span><span class="o">.</span><span class="n">use_text_datablock</span><span class="p">:</span></span>
<span id="LC93" class="line">            <span class="n">layout</span><span class="o">.</span><span class="n">prop</span><span class="p">(</span><span class="n">text</span><span class="p">,</span> <span class="s">'source_text'</span><span class="p">)</span></span>
<span id="LC94" class="line">        <span class="k">else</span><span class="p">:</span></span>
<span id="LC95" class="line">            <span class="n">layout</span><span class="o">.</span><span class="n">prop</span><span class="p">(</span><span class="n">text</span><span class="p">,</span> <span class="s">'source_text_file'</span><span class="p">)</span></span>
<span id="LC96" class="line"></span>
<span id="LC97" class="line"></span>
<span id="LC98" class="line"><span class="k">def</span> <span class="nf">get_text_blocks</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span></span>
<span id="LC99" class="line">    <span class="s">'''Return Text Datablocks for Enum Property'''</span></span>
<span id="LC100" class="line">    <span class="k">return</span> <span class="p">[</span><span class="nb">tuple</span><span class="p">([</span><span class="n">dblock</span><span class="o">.</span><span class="n">name</span><span class="p">]</span> <span class="o">*</span> <span class="mi">3</span><span class="p">)</span> <span class="k">for</span> <span class="n">dblock</span> <span class="ow">in</span> <span class="n">bpy</span><span class="o">.</span><span class="n">data</span><span class="o">.</span><span class="n">texts</span><span class="p">]</span></span>
<span id="LC101" class="line"></span>
<span id="LC102" class="line"></span>
<span id="LC103" class="line"><span class="k">def</span> <span class="nf">register</span><span class="p">():</span></span>
<span id="LC104" class="line">    <span class="s">'''</span></span>
<span id="LC105" class="line"><span class="s">    addon registration function</span></span>
<span id="LC106" class="line"><span class="s">    '''</span></span>
<span id="LC107" class="line">    <span class="c"># create properties</span></span>
<span id="LC108" class="line">    <span class="n">bpy</span><span class="o">.</span><span class="n">types</span><span class="o">.</span><span class="n">TextCurve</span><span class="o">.</span><span class="n">character_count</span> <span class="o">=</span> <span class="n">bpy</span><span class="o">.</span><span class="n">props</span><span class="o">.</span><span class="n">IntProperty</span><span class="p">(</span></span>
<span id="LC109" class="line">      <span class="n">update</span><span class="o">=</span><span class="n">update_func</span><span class="p">,</span> <span class="nb">min</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">options</span><span class="o">=</span><span class="p">{</span><span class="s">'ANIMATABLE'</span><span class="p">})</span></span>
<span id="LC110" class="line">    <span class="n">bpy</span><span class="o">.</span><span class="n">types</span><span class="o">.</span><span class="n">TextCurve</span><span class="o">.</span><span class="n">backup_text</span> <span class="o">=</span> <span class="n">bpy</span><span class="o">.</span><span class="n">props</span><span class="o">.</span><span class="n">StringProperty</span><span class="p">()</span></span>
<span id="LC111" class="line">    <span class="n">bpy</span><span class="o">.</span><span class="n">types</span><span class="o">.</span><span class="n">TextCurve</span><span class="o">.</span><span class="n">use_animated_text</span> <span class="o">=</span> <span class="n">bpy</span><span class="o">.</span><span class="n">props</span><span class="o">.</span><span class="n">BoolProperty</span><span class="p">(</span></span>
<span id="LC112" class="line">      <span class="n">default</span><span class="o">=</span><span class="bp">False</span><span class="p">)</span></span>
<span id="LC113" class="line">    <span class="n">bpy</span><span class="o">.</span><span class="n">types</span><span class="o">.</span><span class="n">TextCurve</span><span class="o">.</span><span class="n">source_text</span> <span class="o">=</span> <span class="n">bpy</span><span class="o">.</span><span class="n">props</span><span class="o">.</span><span class="n">StringProperty</span><span class="p">()</span></span>
<span id="LC114" class="line">    <span class="n">bpy</span><span class="o">.</span><span class="n">types</span><span class="o">.</span><span class="n">TextCurve</span><span class="o">.</span><span class="n">use_text_datablock</span> <span class="o">=</span> <span class="n">bpy</span><span class="o">.</span><span class="n">props</span><span class="o">.</span><span class="n">BoolProperty</span><span class="p">(</span></span>
<span id="LC115" class="line">      <span class="n">default</span><span class="o">=</span><span class="bp">False</span><span class="p">)</span></span>
<span id="LC116" class="line">    <span class="n">bpy</span><span class="o">.</span><span class="n">types</span><span class="o">.</span><span class="n">TextCurve</span><span class="o">.</span><span class="n">source_datablock</span> <span class="o">=</span> <span class="n">bpy</span><span class="o">.</span><span class="n">props</span><span class="o">.</span><span class="n">EnumProperty</span><span class="p">(</span></span>
<span id="LC117" class="line">      <span class="n">items</span><span class="o">=</span><span class="n">get_text_blocks</span><span class="p">)</span></span>
<span id="LC118" class="line">    <span class="c"># register the module:</span></span>
<span id="LC119" class="line">    <span class="n">bpy</span><span class="o">.</span><span class="n">utils</span><span class="o">.</span><span class="n">register_class</span><span class="p">(</span><span class="n">TEXT_PT_Typewriter</span><span class="p">)</span></span>
<span id="LC120" class="line">    <span class="c"># add the frame change handler</span></span>
<span id="LC121" class="line">    <span class="n">bpy</span><span class="o">.</span><span class="n">app</span><span class="o">.</span><span class="n">handlers</span><span class="o">.</span><span class="n">frame_change_post</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">typewriter_text_update_frame</span><span class="p">)</span></span>
<span id="LC122" class="line"></span>
<span id="LC123" class="line"></span>
<span id="LC124" class="line"><span class="k">def</span> <span class="nf">unregister</span><span class="p">():</span></span>
<span id="LC125" class="line">    <span class="s">'''</span></span>
<span id="LC126" class="line"><span class="s">    addon unregistration function</span></span>
<span id="LC127" class="line"><span class="s">    '''</span></span>
<span id="LC128" class="line">    <span class="c"># remove the frame change handler</span></span>
<span id="LC129" class="line">    <span class="n">bpy</span><span class="o">.</span><span class="n">app</span><span class="o">.</span><span class="n">handlers</span><span class="o">.</span><span class="n">frame_change_post</span><span class="o">.</span><span class="n">remove</span><span class="p">(</span><span class="n">typewriter_text_update_frame</span><span class="p">)</span></span>
<span id="LC130" class="line">    <span class="c"># remove the panel</span></span>
<span id="LC131" class="line">    <span class="n">bpy</span><span class="o">.</span><span class="n">utils</span><span class="o">.</span><span class="n">unregister_class</span><span class="p">(</span><span class="n">TEXT_PT_Typewriter</span><span class="p">)</span></span>
<span id="LC132" class="line">    <span class="c"># remove the properties</span></span>
<span id="LC133" class="line">    <span class="k">del</span><span class="p">(</span><span class="n">bpy</span><span class="o">.</span><span class="n">types</span><span class="o">.</span><span class="n">TextCurve</span><span class="o">.</span><span class="n">character_count</span><span class="p">)</span></span>
<span id="LC134" class="line">    <span class="k">del</span><span class="p">(</span><span class="n">bpy</span><span class="o">.</span><span class="n">types</span><span class="o">.</span><span class="n">TextCurve</span><span class="o">.</span><span class="n">backup_text</span><span class="p">)</span></span>
<span id="LC135" class="line">    <span class="k">del</span><span class="p">(</span><span class="n">bpy</span><span class="o">.</span><span class="n">types</span><span class="o">.</span><span class="n">TextCurve</span><span class="o">.</span><span class="n">use_animated_text</span><span class="p">)</span></span>
<span id="LC136" class="line">    <span class="k">del</span><span class="p">(</span><span class="n">bpy</span><span class="o">.</span><span class="n">types</span><span class="o">.</span><span class="n">TextCurve</span><span class="o">.</span><span class="n">source_text</span><span class="p">)</span></span>
<span id="LC137" class="line">    <span class="k">del</span><span class="p">(</span><span class="n">bpy</span><span class="o">.</span><span class="n">types</span><span class="o">.</span><span class="n">TextCurve</span><span class="o">.</span><span class="n">use_text_datablock</span><span class="p">)</span></span>
<span id="LC138" class="line"></span>
<span id="LC139" class="line"></span>
<span id="LC140" class="line"><span class="k">if</span> <span class="n">__name__</span> <span class="o">==</span> <span class="s">"__main__"</span><span class="p">:</span></span>
<span id="LC141" class="line">    <span class="n">register</span><span class="p">()</span></span>
<span id="LC142" class="line"></span>
<span id="LC143" class="line"> </span></code></pre>
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