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<div class="title">menu.hpp</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="preprocessor">#pragma once</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160; </div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="preprocessor">#include &lt;string&gt;</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160; </div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="preprocessor">#include &quot;engine/api.hpp&quot;</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="preprocessor">#include &quot;engine/engine.hpp&quot;</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="preprocessor">#include &quot;graphics/surface.hpp&quot;</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160; </div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespaceblit.html">blit</a> {</div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160; </div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160; <span class="comment">//</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160; <span class="comment">// A class that represents a menu. It can render a set of menu items.</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160; <span class="comment">//</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"><a class="line" href="classblit_1_1Menu.html"> 14</a></span>&#160; <span class="keyword">class </span><a class="code" href="classblit_1_1Menu.html">Menu</a> {</div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160; <span class="keyword">public</span>:</div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160; <span class="keyword">static</span> <span class="keyword">const</span> uint16_t Separator = 65535;</div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160; <span class="keyword">static</span> <span class="keyword">const</span> uint16_t AnyId = 65534;</div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160; </div>
<div class="line"><a name="l00019"></a><span class="lineno"><a class="line" href="structblit_1_1Menu_1_1Item.html"> 19</a></span>&#160; <span class="keyword">struct </span><a class="code" href="structblit_1_1Menu_1_1Item.html">Item</a> {</div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160; uint16_t id;</div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160; <span class="keyword">const</span> <span class="keywordtype">char</span> *label;</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160; };</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160; </div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160; <a class="code" href="classblit_1_1Menu.html">Menu</a>(std::string_view title, <span class="keyword">const</span> <a class="code" href="structblit_1_1Menu_1_1Item.html">Item</a> *items = <span class="keyword">nullptr</span>, <span class="keywordtype">int</span> num_items = 0, <span class="keyword">const</span> <a class="code" href="structblit_1_1Font.html">Font</a> &amp;font = minimal_font)</div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160; : title(title), items(items), num_items(num_items), display_rect(0, 0, 0, 0), font(font) {}</div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160; </div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160; <span class="keyword">virtual</span> ~<a class="code" href="classblit_1_1Menu.html">Menu</a>() = <span class="keywordflow">default</span>;</div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160; </div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; <span class="comment">//</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160; <span class="comment">// Render the menu to the screen</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; <span class="comment">//</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; <span class="keywordtype">void</span> render() {</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160; screen.pen = background_colour;</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; screen.<a class="code" href="structblit_1_1Surface.html#a8c997e63c669852c191da244cea7d3f6">rectangle</a>(display_rect);</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; render_menu();</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; }</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; </div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160;<span class="keyword">protected</span>:</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">void</span> render_menu() {</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; <span class="keywordtype">int</span> x = display_rect.x;</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <span class="keywordtype">int</span> y = display_rect.y;</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; <span class="keywordtype">int</span> w = display_rect.w;</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; </div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; <span class="comment">// header</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; render_header(x, y, w);</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; </div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; <span class="comment">// y region to clip to</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; y += header_h;</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; <span class="keywordtype">int</span> display_height = display_rect.h - (header_h + footer_h);</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; </div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; <span class="comment">// footer</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <span class="keywordflow">if</span>(footer_h) {</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; render_footer(x, y + display_height, w);</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; }</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; </div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; <span class="keyword">auto</span> old_clip = screen.clip;</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; screen.clip = screen.clip.intersection({x, y, w, display_height});</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; y += (int)scroll_offset + margin_y;</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; </div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; <span class="comment">// items</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i = 0; i &lt; num_items; i++) {</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; <span class="keyword">auto</span> &amp;item = items[i];</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; </div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; <span class="keywordflow">if</span> ( item.label != <span class="keyword">nullptr</span> ) {</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; render_item(item, y, i);</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; }</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; </div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; <span class="keywordflow">if</span>(item.label != <span class="keyword">nullptr</span> || item.id == Menu::Separator) {</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; y += item_h + item_spacing;</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; }</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; }</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; </div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; screen.clip = old_clip;</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; }</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; </div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; <span class="comment">//</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; <span class="comment">// Update method of the menu</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; <span class="comment">//</span></div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">void</span> update(uint32_t time) {</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; <span class="comment">// default size</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; <span class="keywordflow">if</span>(display_rect.w == 0 &amp;&amp; display_rect.h == 0) {</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; display_rect.w = screen.bounds.w;</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; display_rect.h = screen.bounds.h;</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; }</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; </div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; <span class="comment">// key repeat for up/down</span></div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; <span class="keyword">const</span> <span class="keywordtype">int</span> repeat_ms = 200;</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; <span class="keywordflow">if</span>(buttons.pressed &amp; (Button::DPAD_UP | Button::DPAD_DOWN))</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; repeat_start_time = time - repeat_ms;</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; </div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; <span class="keywordflow">if</span>((time - repeat_start_time) &gt;= repeat_ms) {</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; <span class="keywordflow">if</span>(buttons &amp; Button::DPAD_UP) {</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <span class="keywordflow">do</span> {</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; <span class="keywordflow">if</span>(--current_item &lt; 0) {</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; current_item += num_items;</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; }</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; } <span class="keywordflow">while</span>(items[current_item].label == <span class="keyword">nullptr</span> );</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(buttons &amp; Button::DPAD_DOWN) {</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; <span class="keywordflow">do</span> {</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; <span class="keywordflow">if</span>(++current_item == num_items) {</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; current_item = 0;</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; }</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; } <span class="keywordflow">while</span>(items[current_item].label == <span class="keyword">nullptr</span> );</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; }</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; </div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; repeat_start_time = time;</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; }</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; </div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; <span class="keywordflow">if</span> (buttons.released &amp; Button::A) {</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; item_activated(items[current_item]);</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; }</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; </div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; <span class="comment">// scrolling</span></div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; <span class="keywordtype">int</span> total_height = num_items * (item_h + item_spacing);</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; <span class="keywordtype">int</span> display_height = display_rect.h - (header_h + footer_h + margin_y * 2);</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; </div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; <span class="keywordtype">int</span> current_y = current_item * (item_h + item_spacing);</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; <span class="keywordtype">int</span> target_scroll = display_height / 2 - current_y;</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; </div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; <span class="comment">// clamp</span></div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; target_scroll = std::min(0, std::max(-(total_height - display_height), target_scroll));</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; </div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; scroll_offset += (target_scroll - scroll_offset) * 0.2f;</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; </div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; update_menu(time);</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; </div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; update_item(items[current_item]);</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; }</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; </div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; <span class="keywordtype">void</span> set_items(<span class="keyword">const</span> Item *items, <span class="keywordtype">int</span> num_items) {</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; this-&gt;items = items;</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; this-&gt;num_items = num_items;</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; current_item = 0;</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; }</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; </div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; <span class="keywordtype">void</span> set_display_rect(Rect rect) {</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; display_rect = rect;</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; }</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; </div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; std::string_view title;</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; </div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">void</span> render_item(<span class="keyword">const</span> Item &amp;item, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> index)<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; Rect item_rect(display_rect.x, y, display_rect.w, item_h);</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; </div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; <span class="comment">// selected item</span></div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; <span class="keywordflow">if</span>(index == current_item) {</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; screen.pen = selected_item_background;</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; screen.<a class="code" href="structblit_1_1Surface.html#a8c997e63c669852c191da244cea7d3f6">rectangle</a>(item_rect);</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; }</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; </div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; screen.pen = foreground_colour;</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; item_rect.x += item_padding_x;</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; item_rect.y += item_adjust_y;</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; item_rect.h += font.<a class="code" href="structblit_1_1Font.html#ab57ed4b5011bdecc1c9ea8c03be482c6">spacing_y</a>; <span class="comment">// adjust for alignment</span></div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; screen.<a class="code" href="structblit_1_1Surface.html#a4b4f9375a498340ecf8f5d06281e9add">text</a>(item.label, font, item_rect, <span class="keyword">true</span>, TextAlign::center_left);</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; }</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; </div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; <span class="comment">//</span></div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; <span class="comment">// Can be used in a derived class for global updates to the entire menu</span></div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; <span class="comment">//</span></div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">void</span> update_menu(uint32_t time) {}</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; </div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; <span class="comment">//</span></div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; <span class="comment">// Called in the update phase for the selected item</span></div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; <span class="comment">//</span></div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">void</span> update_item(<span class="keyword">const</span> Item &amp;item) {</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; }</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; </div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; <span class="comment">//</span></div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; <span class="comment">// The A button was pressed on an item</span></div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; <span class="comment">//</span></div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">void</span> item_activated(<span class="keyword">const</span> Item &amp;item) {</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; }</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160; </div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; <span class="comment">//</span></div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160; <span class="comment">// Called when the header should be rendered</span></div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; <span class="comment">// Derived classes should call base, as this clears the rectangle as well</span></div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; <span class="comment">//</span></div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">void</span> render_header(<span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> w) {</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; screen.pen = header_background;</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160; Rect header_rect(x, y, w, header_h);</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; screen.<a class="code" href="structblit_1_1Surface.html#a8c997e63c669852c191da244cea7d3f6">rectangle</a>(header_rect);</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; </div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; screen.pen = header_foreground;</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160; header_rect.x += item_padding_x;</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; header_rect.h += font.<a class="code" href="structblit_1_1Font.html#ab57ed4b5011bdecc1c9ea8c03be482c6">spacing_y</a>; <span class="comment">// adjust for alignment</span></div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160; screen.<a class="code" href="structblit_1_1Surface.html#a4b4f9375a498340ecf8f5d06281e9add">text</a>(title, font, header_rect, <span class="keyword">true</span>, TextAlign::center_left);</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160; }</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160; </div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160; <span class="comment">//</span></div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160; <span class="comment">// Called when the footer should be rendered</span></div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160; <span class="comment">// Derived classes should call base, as this clears the rectangle as well</span></div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160; <span class="comment">//</span></div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">void</span> render_footer(<span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> w) {</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160; screen.pen = header_background;</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160; Rect footer_rect(x, y, w, footer_h);</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160; screen.<a class="code" href="structblit_1_1Surface.html#a8c997e63c669852c191da244cea7d3f6">rectangle</a>(footer_rect);</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160; }</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160; </div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160; <span class="keyword">const</span> Item *items;</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160; <span class="keywordtype">int</span> num_items;</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160; <span class="keywordtype">int</span> current_item = 0;</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160; <span class="keywordtype">float</span> scroll_offset = 0.0f;</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160; </div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160; uint32_t repeat_start_time = 0;</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>&#160; </div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>&#160; <span class="comment">// layout</span></div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>&#160; Rect display_rect;</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>&#160; <span class="keywordtype">int</span> header_h = 16, footer_h = 16;</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>&#160; <span class="keywordtype">int</span> margin_y = 5; <span class="comment">// margin between items and header</span></div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>&#160; </div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>&#160; <span class="keywordtype">int</span> item_h = 9;</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>&#160; <span class="keywordtype">int</span> item_padding_x = 5;</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>&#160; <span class="keywordtype">int</span> item_adjust_y = 1; <span class="comment">// minimal_font y is a bit off</span></div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>&#160; <span class="keywordtype">int</span> item_spacing = 1;</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>&#160; </div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>&#160; <span class="keyword">const</span> Font &amp;font;</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>&#160; </div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>&#160; <span class="comment">// colours</span></div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>&#160; Pen background_colour = Pen(30, 30, 50, 200);</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>&#160; Pen foreground_colour = Pen(255, 255, 255);</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>&#160; Pen selected_item_background = Pen(50, 50, 70);</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>&#160; </div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>&#160; Pen header_background = Pen(235, 245, 255);</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>&#160; Pen header_foreground = Pen(3, 5, 7);</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>&#160; };</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>&#160;}</div>
<div class="ttc" id="aclassblit_1_1Menu_html"><div class="ttname"><a href="classblit_1_1Menu.html">blit::Menu</a></div><div class="ttdef"><b>Definition:</b> menu.hpp:14</div></div>
<div class="ttc" id="anamespaceblit_html"><div class="ttname"><a href="namespaceblit.html">blit</a></div><div class="ttdef"><b>Definition:</b> audio.cpp:10</div></div>
<div class="ttc" id="astructblit_1_1Font_html"><div class="ttname"><a href="structblit_1_1Font.html">blit::Font</a></div><div class="ttdef"><b>Definition:</b> font.hpp:6</div></div>
<div class="ttc" id="astructblit_1_1Font_html_ab57ed4b5011bdecc1c9ea8c03be482c6"><div class="ttname"><a href="structblit_1_1Font.html#ab57ed4b5011bdecc1c9ea8c03be482c6">blit::Font::spacing_y</a></div><div class="ttdeci">uint8_t spacing_y</div><div class="ttdoc">Extra line spacing.</div><div class="ttdef"><b>Definition:</b> font.hpp:20</div></div>
<div class="ttc" id="astructblit_1_1Menu_1_1Item_html"><div class="ttname"><a href="structblit_1_1Menu_1_1Item.html">blit::Menu::Item</a></div><div class="ttdef"><b>Definition:</b> menu.hpp:19</div></div>
<div class="ttc" id="astructblit_1_1Surface_html_a4b4f9375a498340ecf8f5d06281e9add"><div class="ttname"><a href="structblit_1_1Surface.html#a4b4f9375a498340ecf8f5d06281e9add">blit::Surface::text</a></div><div class="ttdeci">void text(std::string_view message, const Font &amp;font, const Rect &amp;r, bool variable=true, TextAlign align=TextAlign::top_left)</div><div class="ttdef"><b>Definition:</b> text.cpp:35</div></div>
<div class="ttc" id="astructblit_1_1Surface_html_a8c997e63c669852c191da244cea7d3f6"><div class="ttname"><a href="structblit_1_1Surface.html#a8c997e63c669852c191da244cea7d3f6">blit::Surface::rectangle</a></div><div class="ttdeci">void rectangle(const Rect &amp;r)</div><div class="ttdef"><b>Definition:</b> primitive.cpp:24</div></div>
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