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  194. <div class="title">Tutorial 24: CursorControl </div>  </div>
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  200.  <p>Show how to modify cursors and offer some useful tool-functions for creating cursors. It can also be used for experiments with the mouse in general. </p><div class="fragment"><div class="line"><span class="preprocessor">#include &lt;irrlicht.h&gt;</span></div><div class="line"><span class="preprocessor">#include &quot;driverChoice.h&quot;</span></div><div class="line"><span class="preprocessor">#include &quot;exampleHelper.h&quot;</span></div><div class="line"></div><div class="line"><span class="keyword">using namespace </span>irr;</div><div class="line"><span class="keyword">using namespace </span>core;</div><div class="line"><span class="keyword">using namespace </span>scene;</div><div class="line"><span class="keyword">using namespace </span>video;</div><div class="line"><span class="keyword">using namespace </span>io;</div><div class="line"><span class="keyword">using namespace </span>gui;</div><div class="line"></div><div class="line"><span class="preprocessor">#ifdef _MSC_VER</span></div><div class="line"><span class="preprocessor">#pragma comment(lib, &quot;Irrlicht.lib&quot;)</span></div><div class="line"><span class="preprocessor">#endif</span></div><div class="line"></div><div class="line"><span class="keyword">const</span> <span class="keywordtype">int</span> DELAY_TIME = 3000;</div><div class="line"></div><div class="line"><span class="keyword">enum</span> ETimerAction</div><div class="line">{</div><div class="line">    ETA_MOUSE_VISIBLE,</div><div class="line">    ETA_MOUSE_INVISIBLE,</div><div class="line">};</div></div><!-- fragment --><p> Structure to allow delayed execution of some actions. </p><div class="fragment"><div class="line"><span class="keyword">struct </span>TimerAction</div><div class="line">{</div><div class="line">    u32 TargetTime;</div><div class="line">    ETimerAction Action;</div><div class="line">};</div></div><!-- fragment --> <div class="fragment"><div class="line"><span class="keyword">struct </span>SAppContext</div><div class="line">{</div><div class="line">    SAppContext()</div><div class="line">    : Device(0), InfoStatic(0), EventBox(0), CursorBox(0), SpriteBox(0)</div><div class="line">    , ButtonSetVisible(0), ButtonSetInvisible(0), ButtonSimulateBadFps(0)</div><div class="line">    , ButtonChangeIcon(0)</div><div class="line">    , SimulateBadFps(false)</div><div class="line">    {</div><div class="line">    }</div><div class="line"></div><div class="line">    <span class="keywordtype">void</span> update()</div><div class="line">    {</div><div class="line">        <span class="keywordflow">if</span> (!Device)</div><div class="line">            <span class="keywordflow">return</span>;</div><div class="line">        u32 timeNow = Device-&gt;getTimer()-&gt;getTime();</div><div class="line">        <span class="keywordflow">for</span> ( u32 i=0; i &lt; TimerActions.size(); ++i )</div><div class="line">        {</div><div class="line">            <span class="keywordflow">if</span> ( timeNow &gt;= TimerActions[i].TargetTime )</div><div class="line">            {</div><div class="line">                runTimerAction(TimerActions[i]);</div><div class="line">                TimerActions.erase(i);</div><div class="line">            }</div><div class="line">            <span class="keywordflow">else</span></div><div class="line">            {</div><div class="line">                ++i;</div><div class="line">            }</div><div class="line">        }</div><div class="line">    }</div><div class="line"></div><div class="line">    <span class="keywordtype">void</span> runTimerAction(<span class="keyword">const</span> TimerAction&amp; action)</div><div class="line">    {</div><div class="line">        <span class="keywordflow">if</span> (ETA_MOUSE_VISIBLE == action.Action)</div><div class="line">        {</div><div class="line">            Device-&gt;getCursorControl()-&gt;setVisible(<span class="keyword">true</span>);</div><div class="line">            ButtonSetVisible-&gt;setEnabled(<span class="keyword">true</span>);</div><div class="line">        }</div><div class="line">        <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( ETA_MOUSE_INVISIBLE == action.Action)</div><div class="line">        {</div><div class="line">            Device-&gt;getCursorControl()-&gt;setVisible(<span class="keyword">false</span>);</div><div class="line">            ButtonSetInvisible-&gt;setEnabled(<span class="keyword">true</span>);</div><div class="line">        }</div><div class="line">    }</div></div><!-- fragment --><p> Add another icon which the user can click and select as cursor later on. </p><div class="fragment"><div class="line"><span class="keywordtype">void</span> addIcon(<span class="keyword">const</span> stringw&amp; name, <span class="keyword">const</span> SCursorSprite &amp;sprite, <span class="keywordtype">bool</span> addCursor=<span class="keyword">true</span>)</div><div class="line">{</div><div class="line">    <span class="comment">// Sprites are just icons - not yet cursors. They can be displayed by Irrlicht sprite functions and be used to create cursors.</span></div><div class="line">    SpriteBox-&gt;addItem(name.c_str(), sprite.SpriteId);</div><div class="line">    Sprites.push_back(sprite);</div><div class="line"></div><div class="line">    <span class="comment">// create the cursor together with the icon?</span></div><div class="line">    <span class="keywordflow">if</span> ( addCursor )</div><div class="line">    {</div></div><!-- fragment --><p> Here we create a hardware cursor from a sprite</p><div class="fragment"><div class="line">            Device-&gt;getCursorControl()-&gt;addIcon(sprite);</div><div class="line"></div><div class="line">            <span class="comment">// ... and add it to the cursors selection listbox to the other system cursors.</span></div><div class="line">            CursorBox-&gt;addItem(name.c_str());</div><div class="line">        }</div><div class="line">    }</div><div class="line"></div><div class="line">    IrrlichtDevice * Device;</div><div class="line">    gui::IGUIStaticText * InfoStatic;</div><div class="line">    gui::IGUIListBox * EventBox;</div><div class="line">    gui::IGUIListBox * CursorBox;</div><div class="line">    gui::IGUIListBox * SpriteBox;</div><div class="line">    gui::IGUIButton * ButtonSetVisible;</div><div class="line">    gui::IGUIButton * ButtonSetInvisible;</div><div class="line">    gui::IGUIButton * ButtonSimulateBadFps;</div><div class="line">    gui::IGUIButton * ButtonChangeIcon;</div><div class="line">    array&lt;TimerAction&gt; TimerActions;</div><div class="line">    <span class="keywordtype">bool</span> SimulateBadFps;</div><div class="line">    array&lt;SCursorSprite&gt; Sprites;</div><div class="line">};</div></div><!-- fragment --><p> Helper function to print mouse event names into a stringw </p><div class="fragment"><div class="line"><span class="keywordtype">void</span> PrintMouseEventName(<span class="keyword">const</span> SEvent&amp; event, stringw &amp;result)</div><div class="line">{</div><div class="line">    <span class="keywordflow">switch</span> ( event.MouseInput.Event )</div><div class="line">    {</div><div class="line">        <span class="keywordflow">case</span> EMIE_LMOUSE_PRESSED_DOWN:  result += stringw(L<span class="stringliteral">&quot;EMIE_LMOUSE_PRESSED_DOWN&quot;</span>); <span class="keywordflow">break</span>;</div><div class="line">        <span class="keywordflow">case</span> EMIE_RMOUSE_PRESSED_DOWN:  result += stringw(L<span class="stringliteral">&quot;EMIE_RMOUSE_PRESSED_DOWN&quot;</span>); <span class="keywordflow">break</span>;</div><div class="line">        <span class="keywordflow">case</span> EMIE_MMOUSE_PRESSED_DOWN:  result += stringw(L<span class="stringliteral">&quot;EMIE_MMOUSE_PRESSED_DOWN&quot;</span>); <span class="keywordflow">break</span>;</div><div class="line">        <span class="keywordflow">case</span> EMIE_LMOUSE_LEFT_UP:       result += stringw(L<span class="stringliteral">&quot;EMIE_LMOUSE_LEFT_UP&quot;</span>); <span class="keywordflow">break</span>;</div><div class="line">        <span class="keywordflow">case</span> EMIE_RMOUSE_LEFT_UP:       result += stringw(L<span class="stringliteral">&quot;EMIE_RMOUSE_LEFT_UP&quot;</span>); <span class="keywordflow">break</span>;</div><div class="line">        <span class="keywordflow">case</span> EMIE_MMOUSE_LEFT_UP:       result += stringw(L<span class="stringliteral">&quot;EMIE_MMOUSE_LEFT_UP&quot;</span>); <span class="keywordflow">break</span>;</div><div class="line">        <span class="keywordflow">case</span> EMIE_MOUSE_MOVED:          result += stringw(L<span class="stringliteral">&quot;EMIE_MOUSE_MOVED&quot;</span>); <span class="keywordflow">break</span>;</div><div class="line">        <span class="keywordflow">case</span> EMIE_MOUSE_WHEEL:          result += stringw(L<span class="stringliteral">&quot;EMIE_MOUSE_WHEEL&quot;</span>); <span class="keywordflow">break</span>;</div><div class="line">        <span class="keywordflow">case</span> EMIE_LMOUSE_DOUBLE_CLICK:  result += stringw(L<span class="stringliteral">&quot;EMIE_LMOUSE_DOUBLE_CLICK&quot;</span>); <span class="keywordflow">break</span>;</div><div class="line">        <span class="keywordflow">case</span> EMIE_RMOUSE_DOUBLE_CLICK:  result += stringw(L<span class="stringliteral">&quot;EMIE_RMOUSE_DOUBLE_CLICK&quot;</span>); <span class="keywordflow">break</span>;</div><div class="line">        <span class="keywordflow">case</span> EMIE_MMOUSE_DOUBLE_CLICK:  result += stringw(L<span class="stringliteral">&quot;EMIE_MMOUSE_DOUBLE_CLICK&quot;</span>); <span class="keywordflow">break</span>;</div><div class="line">        <span class="keywordflow">case</span> EMIE_LMOUSE_TRIPLE_CLICK:  result += stringw(L<span class="stringliteral">&quot;EMIE_LMOUSE_TRIPLE_CLICK&quot;</span>); <span class="keywordflow">break</span>;</div><div class="line">        <span class="keywordflow">case</span> EMIE_RMOUSE_TRIPLE_CLICK:  result += stringw(L<span class="stringliteral">&quot;EMIE_RMOUSE_TRIPLE_CLICK&quot;</span>); <span class="keywordflow">break</span>;</div><div class="line">        <span class="keywordflow">case</span> EMIE_MMOUSE_TRIPLE_CLICK:  result += stringw(L<span class="stringliteral">&quot;EMIE_MMOUSE_TRIPLE_CLICK&quot;</span>); <span class="keywordflow">break</span>;</div><div class="line">        <span class="keywordflow">default</span>:</div><div class="line">        <span class="keywordflow">break</span>;</div><div class="line">    }</div><div class="line">}</div></div><!-- fragment --><p> Helper function to print all the state information which get from a mouse-event into a stringw </p><div class="fragment"><div class="line"><span class="keywordtype">void</span> PrintMouseState(<span class="keyword">const</span> SEvent&amp; event, stringw &amp;result)</div><div class="line">{</div><div class="line">    result += stringw(L<span class="stringliteral">&quot;X: &quot;</span>);</div><div class="line">    result += stringw(event.MouseInput.X);</div><div class="line">    result += stringw(L<span class="stringliteral">&quot;\n&quot;</span>);</div><div class="line"></div><div class="line">    result += stringw(L<span class="stringliteral">&quot;Y: &quot;</span>);</div><div class="line">    result += stringw(event.MouseInput.Y);</div><div class="line">    result += stringw(L<span class="stringliteral">&quot;\n&quot;</span>);</div><div class="line"></div><div class="line"></div><div class="line">    result += stringw(L<span class="stringliteral">&quot;Wheel: &quot;</span>);</div><div class="line">    result += stringw(event.MouseInput.Wheel);</div><div class="line">    result += stringw(L<span class="stringliteral">&quot;\n&quot;</span>);</div><div class="line"></div><div class="line">    result += stringw(L<span class="stringliteral">&quot;Shift: &quot;</span>);</div><div class="line">    <span class="keywordflow">if</span> ( event.MouseInput.Shift )</div><div class="line">        result += stringw(L<span class="stringliteral">&quot;true\n&quot;</span>);</div><div class="line">    <span class="keywordflow">else</span></div><div class="line">        result += stringw(L<span class="stringliteral">&quot;false\n&quot;</span>);</div><div class="line"></div><div class="line">    result += stringw(L<span class="stringliteral">&quot;Control: &quot;</span>);</div><div class="line">    <span class="keywordflow">if</span> ( event.MouseInput.Control )</div><div class="line">        result += stringw(L<span class="stringliteral">&quot;true\n&quot;</span>);</div><div class="line">    <span class="keywordflow">else</span></div><div class="line">        result += stringw(L<span class="stringliteral">&quot;false\n&quot;</span>);</div><div class="line"></div><div class="line">    result += stringw(L<span class="stringliteral">&quot;ButtonStates: &quot;</span>);</div><div class="line">    result += stringw(event.MouseInput.ButtonStates);</div><div class="line">    result += stringw(L<span class="stringliteral">&quot;\n&quot;</span>);</div><div class="line"></div><div class="line">    result += stringw(L<span class="stringliteral">&quot;isLeftPressed: &quot;</span>);</div><div class="line">    <span class="keywordflow">if</span> ( event.MouseInput.isLeftPressed() )</div><div class="line">        result += stringw(L<span class="stringliteral">&quot;true\n&quot;</span>);</div><div class="line">    <span class="keywordflow">else</span></div><div class="line">        result += stringw(L<span class="stringliteral">&quot;false\n&quot;</span>);</div><div class="line"></div><div class="line">    result += stringw(L<span class="stringliteral">&quot;isRightPressed: &quot;</span>);</div><div class="line">    <span class="keywordflow">if</span> ( event.MouseInput.isRightPressed() )</div><div class="line">        result += stringw(L<span class="stringliteral">&quot;true\n&quot;</span>);</div><div class="line">    <span class="keywordflow">else</span></div><div class="line">        result += stringw(L<span class="stringliteral">&quot;false\n&quot;</span>);</div><div class="line"></div><div class="line">    result += stringw(L<span class="stringliteral">&quot;isMiddlePressed: &quot;</span>);</div><div class="line">    <span class="keywordflow">if</span> ( event.MouseInput.isMiddlePressed() )</div><div class="line">        result += stringw(L<span class="stringliteral">&quot;true\n&quot;</span>);</div><div class="line">    <span class="keywordflow">else</span></div><div class="line">        result += stringw(L<span class="stringliteral">&quot;false\n&quot;</span>);</div><div class="line"></div><div class="line">    result += stringw(L<span class="stringliteral">&quot;Event: &quot;</span>);</div><div class="line"></div><div class="line">    PrintMouseEventName(event, result);</div><div class="line"></div><div class="line">    result += stringw(L<span class="stringliteral">&quot;\n&quot;</span>);</div><div class="line">}</div></div><!-- fragment --><p> A typical event receiver. </p><div class="fragment"><div class="line"><span class="keyword">class </span>MyEventReceiver : <span class="keyword">public</span> IEventReceiver</div><div class="line">{</div><div class="line"><span class="keyword">public</span>:</div><div class="line">    MyEventReceiver(SAppContext &amp; context) : Context(context) { }</div><div class="line"></div><div class="line">    <span class="keyword">virtual</span> <span class="keywordtype">bool</span> OnEvent(<span class="keyword">const</span> SEvent&amp; event)</div><div class="line">    {</div><div class="line">        <span class="keywordflow">if</span> (event.EventType == EET_GUI_EVENT )</div><div class="line">        {</div><div class="line">            <span class="keywordflow">switch</span> ( event.GUIEvent.EventType )</div><div class="line">            {</div><div class="line">                <span class="keywordflow">case</span> EGET_BUTTON_CLICKED:</div><div class="line">                {</div><div class="line">                    u32 timeNow = Context.Device-&gt;getTimer()-&gt;getTime();</div><div class="line">                    TimerAction action;</div><div class="line">                    action.TargetTime = timeNow + DELAY_TIME;</div><div class="line">                    <span class="keywordflow">if</span> ( event.GUIEvent.Caller == Context.ButtonSetVisible )</div><div class="line">                    {</div><div class="line">                        action.Action = ETA_MOUSE_VISIBLE;</div><div class="line">                        Context.TimerActions.push_back(action);</div><div class="line">                        Context.ButtonSetVisible-&gt;setEnabled(<span class="keyword">false</span>);</div><div class="line">                    }</div><div class="line">                    <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( event.GUIEvent.Caller == Context.ButtonSetInvisible )</div><div class="line">                    {</div><div class="line">                        action.Action = ETA_MOUSE_INVISIBLE;</div><div class="line">                        Context.TimerActions.push_back(action);</div><div class="line">                        Context.ButtonSetInvisible-&gt;setEnabled(<span class="keyword">false</span>);</div><div class="line">                    }</div><div class="line">                    <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( event.GUIEvent.Caller == Context.ButtonSimulateBadFps )</div><div class="line">                    {</div><div class="line">                        Context.SimulateBadFps = Context.ButtonSimulateBadFps-&gt;isPressed();</div><div class="line">                    }</div><div class="line">                    <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( event.GUIEvent.Caller == Context.ButtonChangeIcon )</div><div class="line">                    {</div></div><!-- fragment --><p> Replace an existing cursor icon by another icon. The user has to select both - the icon which should be replaced and the icon which will replace it. </p><div class="fragment"><div class="line">s32 selectedCursor = Context.CursorBox-&gt;getSelected();</div><div class="line">s32 selectedSprite = Context.SpriteBox-&gt;getSelected();</div><div class="line"><span class="keywordflow">if</span> ( selectedCursor &gt;= 0 &amp;&amp; selectedSprite &gt;= 0 )</div><div class="line">{</div></div><!-- fragment --><p> This does replace the icon. </p><div class="fragment"><div class="line">Context.Device-&gt;getCursorControl()-&gt;changeIcon((ECURSOR_ICON)selectedCursor, Context.Sprites[selectedSprite] );</div></div><!-- fragment --><p> Do also show the new icon. </p><div class="fragment"><div class="line">            Context.Device-&gt;getCursorControl()-&gt;setActiveIcon( ECURSOR_ICON(selectedCursor) );</div><div class="line">        }</div><div class="line">    }</div><div class="line">}</div><div class="line"><span class="keywordflow">break</span>;</div><div class="line"><span class="keywordflow">case</span> EGET_LISTBOX_CHANGED:</div><div class="line"><span class="keywordflow">case</span> EGET_LISTBOX_SELECTED_AGAIN:</div><div class="line">{</div><div class="line">    <span class="keywordflow">if</span> ( event.GUIEvent.Caller == Context.CursorBox )</div><div class="line">    {</div></div><!-- fragment --><p> Find out which cursor the user selected </p><div class="fragment"><div class="line">s32 selected = Context.CursorBox-&gt;getSelected();</div><div class="line"><span class="keywordflow">if</span> ( selected &gt;= 0 )</div><div class="line">{</div></div><!-- fragment --><p> Here we set the new cursor icon which will now be used within our window. </p><div class="fragment"><div class="line">                            Context.Device-&gt;getCursorControl()-&gt;setActiveIcon( ECURSOR_ICON(selected) );</div><div class="line">                        }</div><div class="line">                    }</div><div class="line">                }</div><div class="line">                <span class="keywordflow">break</span>;</div><div class="line">                <span class="keywordflow">default</span>:</div><div class="line">                <span class="keywordflow">break</span>;</div><div class="line">            }</div><div class="line">        }</div><div class="line"></div><div class="line">        <span class="keywordflow">if</span> (event.EventType == EET_MOUSE_INPUT_EVENT)</div><div class="line">        {</div><div class="line">            stringw infoText;</div><div class="line">            PrintMouseState(event, infoText);</div><div class="line">            Context.InfoStatic-&gt;setText(infoText.c_str());</div><div class="line">            <span class="keywordflow">if</span> ( event.MouseInput.Event != EMIE_MOUSE_MOVED &amp;&amp; event.MouseInput.Event != EMIE_MOUSE_WHEEL ) <span class="comment">// no spam</span></div><div class="line">            {</div><div class="line">                infoText = L<span class="stringliteral">&quot;&quot;</span>;</div><div class="line">                PrintMouseEventName(event, infoText);</div><div class="line">                Context.EventBox-&gt;insertItem(0, infoText.c_str(), -1);</div><div class="line">            }</div><div class="line">        }</div><div class="line"></div><div class="line">        <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line">    }</div><div class="line"></div><div class="line"><span class="keyword">private</span>:</div><div class="line">    SAppContext &amp; Context;</div><div class="line">};</div></div><!-- fragment --><p> Use several imagefiles as animation frames for a sprite which can be used as cursor icon. The images in those files all need to have the same size. Return sprite index on success or -1 on failure </p><div class="fragment"><div class="line">s32 AddAnimatedIconToSpriteBank( gui::IGUISpriteBank * spriteBank, video::IVideoDriver* driver,  <span class="keyword">const</span> array&lt; io::path &gt;&amp; files, u32 frameTime )</div><div class="line">{</div><div class="line">    <span class="keywordflow">if</span> ( !spriteBank || !driver || !files.size() )</div><div class="line">        <span class="keywordflow">return</span> -1;</div><div class="line"></div><div class="line">    video::ITexture * tex = driver-&gt;getTexture( files[0] );</div><div class="line">    <span class="keywordflow">if</span> ( tex )</div><div class="line">    {</div><div class="line">        array&lt; rect&lt;s32&gt; &gt;&amp; spritePositions = spriteBank-&gt;getPositions();</div><div class="line">        u32 idxRect = spritePositions.size();</div><div class="line">        spritePositions.push_back( rect&lt;s32&gt;(0,0, tex-&gt;getSize().Width, tex-&gt;getSize().Height) );</div><div class="line"></div><div class="line">        SGUISprite sprite;</div><div class="line">        sprite.frameTime = frameTime;</div><div class="line"></div><div class="line">        array&lt; SGUISprite &gt;&amp; sprites = spriteBank-&gt;getSprites();</div><div class="line">        u32 startIdx = spriteBank-&gt;getTextureCount();</div><div class="line">        <span class="keywordflow">for</span> ( u32 f=0; f &lt; files.size(); ++f )</div><div class="line">        {</div><div class="line">            tex = driver-&gt;getTexture( files[f] );</div><div class="line">            <span class="keywordflow">if</span> ( tex )</div><div class="line">            {</div><div class="line">                spriteBank-&gt;addTexture( driver-&gt;getTexture(files[f]) );</div><div class="line">                gui::SGUISpriteFrame frame;</div><div class="line">                frame.rectNumber = idxRect;</div><div class="line">                frame.textureNumber = startIdx+f;</div><div class="line">                sprite.Frames.push_back( frame );</div><div class="line">            }</div><div class="line">        }</div><div class="line"></div><div class="line">        sprites.push_back( sprite );</div><div class="line">        <span class="keywordflow">return</span> sprites.size()-1;</div><div class="line">    }</div><div class="line"></div><div class="line">    <span class="keywordflow">return</span> -1;</div><div class="line">}</div></div><!-- fragment --><p> Use several images within one imagefile as animation frames for a sprite which can be used as cursor icon The sizes of the icons within that file all need to have the same size Return sprite index on success or -1 on failure </p><div class="fragment"><div class="line">s32 AddAnimatedIconToSpriteBank( gui::IGUISpriteBank * spriteBank, video::IVideoDriver* driver,  <span class="keyword">const</span> io::path&amp; file, <span class="keyword">const</span> array&lt; rect&lt;s32&gt; &gt;&amp; rects, u32 frameTime )</div><div class="line">{</div><div class="line">    <span class="keywordflow">if</span> ( !spriteBank || !driver || !rects.size() )</div><div class="line">        <span class="keywordflow">return</span> -1;</div><div class="line"></div><div class="line">    video::ITexture * tex = driver-&gt;getTexture( file );</div><div class="line">    <span class="keywordflow">if</span> ( tex )</div><div class="line">    {</div><div class="line">        array&lt; rect&lt;s32&gt; &gt;&amp; spritePositions = spriteBank-&gt;getPositions();</div><div class="line">        u32 idxRect = spritePositions.size();</div><div class="line">        u32 idxTex = spriteBank-&gt;getTextureCount();</div><div class="line">        spriteBank-&gt;addTexture( tex );</div><div class="line"></div><div class="line">        SGUISprite sprite;</div><div class="line">        sprite.frameTime = frameTime;</div><div class="line"></div><div class="line">        array&lt; SGUISprite &gt;&amp; sprites = spriteBank-&gt;getSprites();</div><div class="line">        <span class="keywordflow">for</span> ( u32 i=0; i &lt; rects.size(); ++i )</div><div class="line">        {</div><div class="line">            spritePositions.push_back( rects[i] );</div><div class="line"></div><div class="line">            gui::SGUISpriteFrame frame;</div><div class="line">            frame.rectNumber = idxRect+i;</div><div class="line">            frame.textureNumber = idxTex;</div><div class="line">            sprite.Frames.push_back( frame );</div><div class="line">        }</div><div class="line"></div><div class="line">        sprites.push_back( sprite );</div><div class="line">        <span class="keywordflow">return</span> sprites.size()-1;</div><div class="line">    }</div><div class="line"></div><div class="line">    <span class="keywordflow">return</span> -1;</div><div class="line">}</div></div><!-- fragment --><p> Create a non-animated icon from the given file and position and put it into the spritebank. We can use this icon later on in a cursor. </p><div class="fragment"><div class="line">s32 AddIconToSpriteBank( gui::IGUISpriteBank * spriteBank, video::IVideoDriver* driver,  <span class="keyword">const</span> io::path&amp; file, <span class="keyword">const</span> core::rect&lt;s32&gt;&amp; rect )</div><div class="line">{</div><div class="line">    <span class="keywordflow">if</span> ( !spriteBank || !driver )</div><div class="line">        <span class="keywordflow">return</span> -1;</div><div class="line"></div><div class="line">    video::ITexture * tex = driver-&gt;getTexture( file );</div><div class="line">    <span class="keywordflow">if</span> ( tex )</div><div class="line">    {</div><div class="line">        core::array&lt; core::rect&lt;irr::s32&gt; &gt;&amp; spritePositions = spriteBank-&gt;getPositions();</div><div class="line">        spritePositions.push_back( rect );</div><div class="line">        array&lt; SGUISprite &gt;&amp; sprites = spriteBank-&gt;getSprites();</div><div class="line">        spriteBank-&gt;addTexture( tex );</div><div class="line"></div><div class="line">        gui::SGUISpriteFrame frame;</div><div class="line">        frame.rectNumber = spritePositions.size()-1;</div><div class="line">        frame.textureNumber = spriteBank-&gt;getTextureCount()-1;</div><div class="line"></div><div class="line">        SGUISprite sprite;</div><div class="line">        sprite.frameTime = 0;</div><div class="line">        sprite.Frames.push_back( frame );</div><div class="line"></div><div class="line">        sprites.push_back( sprite );</div><div class="line"></div><div class="line">        <span class="keywordflow">return</span> sprites.size()-1;</div><div class="line">    }</div><div class="line"></div><div class="line">    <span class="keywordflow">return</span> -1;</div><div class="line">}</div><div class="line"></div><div class="line"><span class="keywordtype">int</span> main()</div><div class="line">{</div><div class="line">    video::E_DRIVER_TYPE driverType = driverChoiceConsole();</div><div class="line">    <span class="keywordflow">if</span> (driverType==video::EDT_COUNT)</div><div class="line">        <span class="keywordflow">return</span> 1;</div><div class="line"></div><div class="line">    IrrlichtDevice * device = createDevice(driverType, dimension2d&lt;u32&gt;(640, 480));</div><div class="line">    <span class="keywordflow">if</span> (device == 0)</div><div class="line">        <span class="keywordflow">return</span> 1; <span class="comment">// could not create selected driver.</span></div><div class="line"></div><div class="line">    <span class="comment">// It&#39;s sometimes of interest to know how the mouse behaves after a resize</span></div><div class="line">    device-&gt;setResizable(<span class="keyword">true</span>);</div><div class="line"></div><div class="line">    device-&gt;setWindowCaption(L<span class="stringliteral">&quot;Cursor control - Irrlicht engine tutorial&quot;</span>);</div><div class="line">    video::IVideoDriver* driver = device-&gt;getVideoDriver();</div><div class="line">    IGUIEnvironment* env = device-&gt;getGUIEnvironment();</div><div class="line"></div><div class="line">    gui::IGUISpriteBank * SpriteBankIcons;</div><div class="line"></div><div class="line">    SAppContext context;</div><div class="line">    context.Device = device;</div><div class="line"></div><div class="line">    rect&lt; s32 &gt; rectInfoStatic(10,10, 200, 200);</div><div class="line">    env-&gt;addStaticText (L<span class="stringliteral">&quot;Cursor state information&quot;</span>, rectInfoStatic, <span class="keyword">true</span>, <span class="keyword">true</span>);</div><div class="line">    rectInfoStatic.UpperLeftCorner += dimension2di(0, 15);</div><div class="line">    context.InfoStatic = env-&gt;addStaticText (L<span class="stringliteral">&quot;&quot;</span>, rectInfoStatic, <span class="keyword">true</span>, <span class="keyword">true</span>);</div><div class="line">    rect&lt; s32 &gt; rectEventBox(10,210, 200, 400);</div><div class="line">    env-&gt;addStaticText (L<span class="stringliteral">&quot;click events (new on top)&quot;</span>, rectEventBox, <span class="keyword">true</span>, <span class="keyword">true</span>);</div><div class="line">    rectEventBox.UpperLeftCorner += dimension2di(0, 15);</div><div class="line">    context.EventBox = env-&gt;addListBox(rectEventBox);</div><div class="line">    rect&lt; s32 &gt; rectCursorBox(210,10, 400, 250);</div><div class="line">    env-&gt;addStaticText (L<span class="stringliteral">&quot;cursors, click to set the active one&quot;</span>, rectCursorBox, <span class="keyword">true</span>, <span class="keyword">true</span>);</div><div class="line">    rectCursorBox.UpperLeftCorner += dimension2di(0, 15);</div><div class="line">    context.CursorBox = env-&gt;addListBox(rectCursorBox);</div><div class="line">    rect&lt; s32 &gt; rectSpriteBox(210,260, 400, 400);</div><div class="line">    env-&gt;addStaticText (L<span class="stringliteral">&quot;sprites&quot;</span>, rectSpriteBox, <span class="keyword">true</span>, <span class="keyword">true</span>);</div><div class="line">    rectSpriteBox.UpperLeftCorner += dimension2di(0, 15);</div><div class="line">    context.SpriteBox = env-&gt;addListBox(rectSpriteBox);</div><div class="line"></div><div class="line">    context.ButtonSetVisible = env-&gt;addButton( rect&lt;s32&gt;( 410, 20, 560, 40 ), 0, -1, L<span class="stringliteral">&quot;set visible (delayed)&quot;</span> );</div><div class="line">    context.ButtonSetInvisible = env-&gt;addButton( rect&lt;s32&gt;( 410, 50, 560, 70 ), 0, -1, L<span class="stringliteral">&quot;set invisible (delayed)&quot;</span> );</div><div class="line">    context.ButtonSimulateBadFps = env-&gt;addButton( rect&lt;s32&gt;( 410, 80, 560, 100 ), 0, -1, L<span class="stringliteral">&quot;simulate bad FPS&quot;</span> );</div><div class="line">    context.ButtonSimulateBadFps-&gt;setIsPushButton(<span class="keyword">true</span>);</div><div class="line">    context.ButtonChangeIcon = env-&gt;addButton( rect&lt;s32&gt;( 410, 140, 560, 160 ), 0, -1, L<span class="stringliteral">&quot;replace cursor icon\n(cursor+sprite must be selected)&quot;</span> );</div><div class="line"></div><div class="line">    <span class="comment">// set the names for all the system cursors</span></div><div class="line">    <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i=0; i &lt; (int)gui::ECI_COUNT; ++i )</div><div class="line">    {</div><div class="line">        context.CursorBox-&gt;addItem(stringw( GUICursorIconNames[i] ).c_str());</div><div class="line">    }</div></div><!-- fragment --><p> Create sprites which then can be used as cursor icons. </p><div class="fragment"><div class="line">    SpriteBankIcons = env-&gt;addEmptySpriteBank(io::path(<span class="stringliteral">&quot;cursor_icons&quot;</span>));</div><div class="line">    context.SpriteBox-&gt;setSpriteBank(SpriteBankIcons);</div><div class="line"></div><div class="line">    <span class="keyword">const</span> io::path mediaPath = getExampleMediaPath();</div><div class="line"></div><div class="line">    <span class="comment">// create one animated icon from several files</span></div><div class="line">    array&lt; io::path &gt; files;</div><div class="line">    files.push_back( io::path(mediaPath + <span class="stringliteral">&quot;icon_crosshairs16x16bw1.png&quot;</span>) );</div><div class="line">    files.push_back( io::path(mediaPath + <span class="stringliteral">&quot;icon_crosshairs16x16bw2.png&quot;</span>) );</div><div class="line">    files.push_back( io::path(mediaPath + <span class="stringliteral">&quot;icon_crosshairs16x16bw3.png&quot;</span>) );</div><div class="line">    files.push_back( io::path(mediaPath + <span class="stringliteral">&quot;icon_crosshairs16x16bw3.png&quot;</span>) );</div><div class="line">    files.push_back( io::path(mediaPath + <span class="stringliteral">&quot;icon_crosshairs16x16bw2.png&quot;</span>) );</div><div class="line">    SCursorSprite spriteBw; <span class="comment">// the sprite + some additional information needed for cursors</span></div><div class="line">    spriteBw.SpriteId = AddAnimatedIconToSpriteBank( SpriteBankIcons, driver, files, 200 );</div><div class="line">    spriteBw.SpriteBank = SpriteBankIcons;</div><div class="line">    spriteBw.HotSpot = position2d&lt;s32&gt;(7,7);</div><div class="line">    context.addIcon(L<span class="stringliteral">&quot;crosshair_bw&quot;</span>, spriteBw);</div><div class="line"></div><div class="line">    <span class="comment">// create one animated icon from one file</span></div><div class="line">    array&lt; rect&lt;s32&gt; &gt; iconRects;</div><div class="line">    iconRects.push_back( rect&lt;s32&gt;(0,0, 16, 16) );</div><div class="line">    iconRects.push_back( rect&lt;s32&gt;(16,0, 32, 16) );</div><div class="line">    iconRects.push_back( rect&lt;s32&gt;(0,16, 16, 32) );</div><div class="line">    iconRects.push_back( rect&lt;s32&gt;(0,16, 16, 32) );</div><div class="line">    iconRects.push_back( rect&lt;s32&gt;(16,0, 32, 16) );</div><div class="line">    SCursorSprite spriteCol;    <span class="comment">// the sprite + some additional information needed for cursors</span></div><div class="line">    spriteCol.SpriteId = AddAnimatedIconToSpriteBank( SpriteBankIcons, driver, io::path(mediaPath + <span class="stringliteral">&quot;icon_crosshairs16x16col.png&quot;</span>), iconRects, 200 );</div><div class="line">    spriteCol.HotSpot = position2d&lt;s32&gt;(7,7);</div><div class="line">    spriteCol.SpriteBank = SpriteBankIcons;</div><div class="line">    context.addIcon(L<span class="stringliteral">&quot;crosshair_colored&quot;</span>, spriteCol);</div><div class="line"></div><div class="line">    <span class="comment">// Create some non-animated icons</span></div><div class="line">    rect&lt;s32&gt; rectIcon;</div><div class="line">    SCursorSprite spriteNonAnimated(SpriteBankIcons, 0, position2d&lt;s32&gt;(7,7));</div><div class="line"></div><div class="line">    rectIcon = rect&lt;s32&gt;(0,0, 16, 16);</div><div class="line">    spriteNonAnimated.SpriteId = AddIconToSpriteBank( SpriteBankIcons, driver, io::path(mediaPath + <span class="stringliteral">&quot;icon_crosshairs16x16col.png&quot;</span>), rectIcon );</div><div class="line">    context.addIcon(L<span class="stringliteral">&quot;crosshair_col1&quot;</span>, spriteNonAnimated, <span class="keyword">false</span>);</div><div class="line"></div><div class="line">    rectIcon = rect&lt;s32&gt;(16,0, 32, 16);</div><div class="line">    spriteNonAnimated.SpriteId = AddIconToSpriteBank( SpriteBankIcons, driver, io::path(mediaPath + <span class="stringliteral">&quot;icon_crosshairs16x16col.png&quot;</span>), rectIcon );</div><div class="line">    context.addIcon(L<span class="stringliteral">&quot;crosshair_col2&quot;</span>, spriteNonAnimated, <span class="keyword">false</span>);</div><div class="line"></div><div class="line">    rectIcon = rect&lt;s32&gt;(0,16, 16, 32);</div><div class="line">    spriteNonAnimated.SpriteId = AddIconToSpriteBank( SpriteBankIcons, driver, io::path(mediaPath + <span class="stringliteral">&quot;icon_crosshairs16x16col.png&quot;</span>), rectIcon );</div><div class="line">    context.addIcon(L<span class="stringliteral">&quot;crosshair_col3&quot;</span>, spriteNonAnimated, <span class="keyword">false</span>);</div><div class="line"></div><div class="line"></div><div class="line">    MyEventReceiver receiver(context);</div><div class="line">    device-&gt;setEventReceiver(&amp;receiver);</div><div class="line"></div><div class="line">    <span class="keywordflow">while</span>(device-&gt;run() &amp;&amp; driver)</div><div class="line">    {</div><div class="line">        <span class="comment">// if (device-&gt;isWindowActive())</span></div><div class="line">        {</div><div class="line">            u32 realTimeNow = device-&gt;getTimer()-&gt;getRealTime();</div><div class="line"></div><div class="line">            context.update();</div><div class="line"></div><div class="line">            driver-&gt;beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, SColor(0,200,200,200));</div><div class="line"></div><div class="line">            env-&gt;drawAll();</div><div class="line"></div><div class="line">            <span class="comment">// draw custom sprite with Irrlicht functions for comparison. It should usually look the same as the cursors.</span></div><div class="line">            <span class="keywordflow">if</span> ( context.SpriteBox )</div><div class="line">            {</div><div class="line">                s32 selectedSprite = context.SpriteBox-&gt;getSelected();</div><div class="line">                <span class="keywordflow">if</span> ( selectedSprite &gt;= 0 &amp;&amp; context.Sprites[selectedSprite].SpriteId &gt;= 0 )</div><div class="line">                {</div><div class="line">                    SpriteBankIcons-&gt;draw2DSprite(u32(context.Sprites[selectedSprite].SpriteId), position2di(580, 140), 0, video::SColor(255, 255, 255, 255), 0, realTimeNow);</div><div class="line">                }</div><div class="line">            }</div><div class="line"></div><div class="line">            driver-&gt;endScene();</div><div class="line">        }</div><div class="line"></div><div class="line">        <span class="comment">// By simulating bad fps we can find out if hardware-support for cursors works or not. If it works the cursor will move as usual,while it otherwise will just update with 2 fps now.</span></div><div class="line">        <span class="keywordflow">if</span> ( context.SimulateBadFps )</div><div class="line">        {</div><div class="line">            device-&gt;sleep(500); <span class="comment">// 2 fps</span></div><div class="line">        }</div><div class="line">        <span class="keywordflow">else</span></div><div class="line">        {</div><div class="line">            device-&gt;sleep(10);</div><div class="line">        }</div><div class="line">    }</div><div class="line"></div><div class="line">    device-&gt;drop();</div><div class="line"></div><div class="line">    <span class="keywordflow">return</span> 0;</div><div class="line">}</div></div><!-- fragment --> </div></div><!-- contents -->
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