484 lines
14 KiB
HTML
484 lines
14 KiB
HTML
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<![endif]-->
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</head>
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<body>
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<header id="title-block-header">
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<h1 class="title">spmenu documentation 1.2.1</h1>
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</header>
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<nav id="TOC" role="doc-toc">
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<ul>
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<li><a href="#code-documentation" id="toc-code-documentation">Code
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documentation</a>
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<ul>
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<li><a href="#position-and-widthheight-variables"
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id="toc-position-and-widthheight-variables">Position and width/height
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variables</a></li>
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<li><a href="#drawable-abstraction-functions"
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id="toc-drawable-abstraction-functions">Drawable abstraction
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functions</a></li>
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<li><a href="#font-abstraction-functions"
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id="toc-font-abstraction-functions">Font abstraction functions</a></li>
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<li><a href="#colorscheme-abstraction-functions"
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id="toc-colorscheme-abstraction-functions">Colorscheme abstraction
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functions</a></li>
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<li><a href="#cursor-abstraction-functions"
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id="toc-cursor-abstraction-functions">Cursor abstraction
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functions</a></li>
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<li><a href="#drawable-context-functions"
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id="toc-drawable-context-functions">Drawable context functions</a></li>
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<li><a href="#drawing-functions" id="toc-drawing-functions">Drawing
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functions</a></li>
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<li><a href="#map-functions" id="toc-map-functions">Map
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functions</a></li>
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<li><a href="#removed-functions" id="toc-removed-functions">Removed
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functions</a></li>
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</ul></li>
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</ul>
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</nav>
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<h1 id="code-documentation">Code documentation</h1>
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<p>Some of spmenu’s code documented. If you want to hack on the project,
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this should be useful. Note that these may be renamed in the future to
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make the codebase easier to understand and make changes to. Also note
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that this is <strong>definitely not</strong> a complete list.</p>
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<h2 id="position-and-widthheight-variables">Position and width/height
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variables</h2>
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<ul>
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<li><code>bh</code>
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<ul>
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<li>Menu height divided by lines gets you <code>bh</code>. The name
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comes from dwm’s <code>bh</code> meaning ‘bar height’. This is the
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height of each item in the list.</li>
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</ul></li>
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<li><code>mh</code>
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<ul>
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<li>Menu height (or height of the window)</li>
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<li>Use <code>drw_resize()</code> and <code>XResizeWindow()</code> to
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adjust this.</li>
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</ul></li>
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<li><code>mw</code>
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<ul>
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<li>Menu width (or width of the window)</li>
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<li>Use <code>drw_resize()</code> and <code>XResizeWindow()</code> to
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adjust this.</li>
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<li><code>2 * borderwidth</code> is removed from <code>mw</code> (2*
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because we have two sides)</li>
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<li><code>2 * sp</code> is removed from <code>mw</code> (2* because we
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have two sides)</li>
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</ul></li>
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<li><code>x</code>
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<ul>
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<li>X position, functions like <code>drw_text</code> use this.</li>
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<li>If you set this in bar drawing functions, you must apply the same to
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<code>buttonpress()</code>, otherwise clicks will be offset.</li>
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</ul></li>
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<li><code>y</code>
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<ul>
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<li>Y position, functions like <code>drw_text</code> use this.</li>
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<li>If you set this in bar drawing functions, you must apply the same to
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<code>buttonpress()</code>, otherwise clicks will be offset.</li>
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</ul></li>
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<li><code>ev->x</code>
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<ul>
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<li>X position where you clicked. This is used in the
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<code>buttonpress()</code> function to check where you clicked.</li>
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</ul></li>
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<li><code>ev->y</code>
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<ul>
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<li>Y position where you clicked. This is used in the
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<code>buttonpress()</code> function to check where you clicked.</li>
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</ul></li>
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<li><code>w</code>
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<ul>
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<li>Width of something, this is passed to <code>drw_text()</code> for
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example, but you may override this.</li>
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</ul></li>
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<li><code>plw</code>
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<ul>
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<li>This is the width of the powerline arrow. It must be added on in the
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<code>buttonpress()</code> and draw functions.</li>
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</ul></li>
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<li><code>vp</code>
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<ul>
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<li>Vertical padding, this is initially added on in the
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<code>create_window()</code> function.</li>
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</ul></li>
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<li><code>sp</code>
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<ul>
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<li>Horizontal padding, this is initially added on in the
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<code>create_window()</code> function.</li>
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</ul></li>
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<li><code>promptw</code>
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<ul>
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<li>Width of the prompt text, this is going to be the same as
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<code>TEXTW(prompt)</code>.</li>
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</ul></li>
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<li><code>inputw</code>
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<ul>
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<li>Width of the input text.</li>
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</ul></li>
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<li><code>fh</code>
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<ul>
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<li>Font height. Used to calculate the height of the cursor. See
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<code>drawcaret()</code>.</li>
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</ul></li>
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<li><code>menuposition</code>
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<ul>
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<li>Integer the user is meant to configure. If it’s set to
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<code>0</code>, spmenu will be put on the bottom of the screen. If it’s
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set to <code>1</code> it will be put on the top of the screen. If it’s
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<code>2</code> it will be put in the center of the screen.</li>
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</ul></li>
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<li><code>wa.width</code>
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<ul>
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<li>Window width, <code>wa</code> is
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<code>XWindowAttributes</code>.</li>
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</ul></li>
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<li><code>wa.height</code>
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<ul>
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<li>Window height, <code>wa</code> is
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<code>XWindowAttributes</code>.</li>
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</ul></li>
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<li><code>imageheight</code>
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<ul>
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<li>Image height, This is <strong>not</strong> the height of the image,
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it is the height that the image will be scaled to fit.</li>
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</ul></li>
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<li><code>imagewidth</code>
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<ul>
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<li>Image width, This is <strong>not</strong> the width of the image, it
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is the width that the image will be scaled to fit.</li>
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</ul></li>
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<li><code>imagegaps</code>
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<ul>
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<li>Image gaps, this is extra space added around the image.</li>
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</ul></li>
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<li><code>imageh</code>
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<ul>
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<li>Usually the same as <code>imageheight</code>. This is what
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<code>imageheight</code> is initially set to.</li>
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</ul></li>
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<li><code>imagew</code>
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<ul>
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<li>Usually the same as <code>imagewidth</code>. This is what
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<code>imagewidth</code> is initially set to.</li>
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</ul></li>
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<li><code>imageg</code>
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<ul>
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<li>Usually the same as <code>imagegaps</code>. This is what
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<code>imagegaps</code> is initially set to.</li>
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</ul></li>
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<li><code>longestedge</code>
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<ul>
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<li>As the name implies, it is the longest (highest value) of
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<code>imageheight</code> and <code>imagewidth</code>.</li>
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</ul></li>
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<li><code>numberWidth</code>
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<ul>
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<li>Integer set in some functions, it is simply
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<code>TEXTW(numbers)</code> if the match count isn’t hidden.</li>
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</ul></li>
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<li><code>modeWidth</code>
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<ul>
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<li>Integer set in some functions, it is simply
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<code>TEXTW(modetext)</code> if the mode indicator isn’t hidden.</li>
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</ul></li>
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<li><code>larrowWidth</code>
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<ul>
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<li>Integer set in some functions, it is simply
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<code>TEXTW(leftarrow)</code> if the left arrow isn’t hidden.</li>
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</ul></li>
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<li><code>rarrowWidth</code>
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<ul>
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<li>Integer set in some functions, it is simply
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<code>TEXTW(rightarrow)</code> if the right arrow isn’t hidden.</li>
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</ul></li>
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<li><code>powerlinewidth</code>
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<ul>
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<li>Integer set in some functions, it is simply <code>plw / 2</code> if
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powerlines are enabled.</li>
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</ul></li>
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<li><code>curpos</code>
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<ul>
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<li>Cursor/caret position. When text is added to the input, the width of
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that text is added to this.</li>
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</ul></li>
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</ul>
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<h2 id="drawable-abstraction-functions">Drawable abstraction
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functions</h2>
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<p>Most of these are in <code>libs/sl/draw.c</code> and
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<code>libs/sl/draw.h</code>.</p>
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<ul>
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<li><code>drw_create(Display *dpy, int screen, Window win, unsigned int w, unsigned int h, Visual *visual, unsigned int depth, Colormap cmap);</code>
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<ul>
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<li>This function creates a drawable from <code>Display *dpy</code>,
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<code>Drw</code>. Think of it as a canvas.</li>
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</ul></li>
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<li><code>drw_resize(Drw *drw, unsigned int w, unsigned int h)</code>
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<ul>
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<li>This function resizes the drawable to the dimensions passed as
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arguments (<code>w</code>, <code>h</code>).</li>
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</ul></li>
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<li><code>drw_free(Drw *drw);</code>
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<ul>
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<li>This function will free the drawable from memory. It is
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<em>usually</em> called in cleanup functions like <code>cleanup()</code>
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so most of the time you don’t need to use this.</li>
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</ul></li>
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</ul>
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<h2 id="font-abstraction-functions">Font abstraction functions</h2>
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<p>Most of these are in <code>libs/sl/draw.c</code> and
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<code>libs/sl/draw.h</code>. NOTE: These will differ slightly depending
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on if Pango is enabled or not.</p>
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<ul>
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<li><code>drw_font_create(Drw* drw, char *font[], size_t fontcount);</code>
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<ul>
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<li>This function will return a font libXft can use.</li>
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</ul></li>
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<li><code>drw_font_free(Fnt *set);</code>
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<ul>
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<li>This function will free the font from memory.</li>
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</ul></li>
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<li><code>drw_fontset_getwidth_clamp(Drw *drw, const char *text, unsigned int n, Bool markup);</code>
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<ul>
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<li>This function returns the smallest value out of the passed argument
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<code>n</code> and the length of the text drawn. The text is not
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actually drawn though.</li>
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</ul></li>
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<li><code>drw_font_getwidth(Drw *drw, const char *text, Bool markup);</code>
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<ul>
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<li>This function returns the width of drawn text. The text is not
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actually drawn though.</li>
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</ul></li>
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<li><code>drw_font_getexts(Fnt *font, const char *text, unsigned int len, unsigned int *w, unsigned int *h, Bool markup);</code>
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<ul>
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<li>This function returns the length of the text with the used
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font.</li>
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</ul></li>
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</ul>
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<h2 id="colorscheme-abstraction-functions">Colorscheme abstraction
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functions</h2>
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<ul>
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<li><code>drw_clr_create(Drw *drw, Clr *dest, char *clrname, unsigned int alpha);</code>
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<ul>
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<li>This function allocates space for a color.</li>
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</ul></li>
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<li><code>drw_scm_create(Drw *drw, char *clrnames[], unsigned int alphas[], size_t clrcount);</code>
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<ul>
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<li>This function returns a color scheme from an array of colors and
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alpha.</li>
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</ul></li>
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</ul>
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<h2 id="cursor-abstraction-functions">Cursor abstraction functions</h2>
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<ul>
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<li><code>drw_cur_create(Drw *drw, int shape);</code>
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<ul>
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<li>This function creates and returns a cursor.</li>
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</ul></li>
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<li><code>drw_cur_free(Drw *drw, Cur *cursor);</code>
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<ul>
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<li>This function will free the cursor from memory.</li>
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</ul></li>
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</ul>
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<h2 id="drawable-context-functions">Drawable context functions</h2>
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<ul>
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<li><code>drw_setscheme(Drw *drw, Clr *scm);</code>
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<ul>
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<li>Sets the color scheme to <code>*scm</code> created by
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<code>drw_scm_create()</code></li>
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</ul></li>
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</ul>
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<h2 id="drawing-functions">Drawing functions</h2>
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<ul>
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<li><code>drw_rect(Drw *drw, int x, int y, unsigned int w, unsigned int h, int filled , int invert);</code>
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<ul>
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<li>Draws a simple rectangle. Used in other functions to create more
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useful shapes, such as a cursor.</li>
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</ul></li>
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<li><code>drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lpad, const char *text, int invert, Bool markup);</code>
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<ul>
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<li>Draws text on the drawable using the font created.
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||
<code>const char *text</code> contains the text itself.</li>
|
||
</ul></li>
|
||
</ul>
|
||
<h2 id="map-functions">Map functions</h2>
|
||
<ul>
|
||
<li><code>drw_map(Drw *drw, Window win, int x, int y, unsigned int w, unsigned int h);</code>
|
||
<ul>
|
||
<li>Maps the drawable. (makes it visible)</li>
|
||
</ul></li>
|
||
</ul>
|
||
<h2 id="removed-functions">Removed functions</h2>
|
||
<p>Various functions that have been removed for some reason.</p>
|
||
<ul>
|
||
<li><code>drw_setfont(Drw *drw, Fnt *set);</code>
|
||
<ul>
|
||
<li>Sets the font.</li>
|
||
<li>NOTE: Applies only if Pango is disabled.</li>
|
||
</ul></li>
|
||
</ul>
|
||
</body>
|
||
</html>
|