DPF

DISTRHO Plugin Framework
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NanoSubWidgets.cpp (4308B)

      1 /*
      2  * DISTRHO Plugin Framework (DPF)
      3  * Copyright (C) 2012-2021 Filipe Coelho <falktx@falktx.com>
      4  *
      5  * Permission to use, copy, modify, and/or distribute this software for any purpose with
      6  * or without fee is hereby granted, provided that the above copyright notice and this
      7  * permission notice appear in all copies.
      8  *
      9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
     10  * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
     11  * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
     12  * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
     13  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
     14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     15  */
     16 
     17 #include "tests.hpp"
     18 
     19 #include "../dgl/NanoVG.hpp"
     20 
     21 START_NAMESPACE_DGL
     22 
     23 // --------------------------------------------------------------------------------------------------------------------
     24 
     25 class NanoRectangle : public NanoSubWidget
     26 {
     27 public:
     28     explicit NanoRectangle(Widget* const parent)
     29         : NanoSubWidget(parent),
     30           color() {}
     31 
     32     void setColor(const Color c) noexcept
     33     {
     34         color = c;
     35     }
     36 
     37 protected:
     38     void onNanoDisplay() override
     39     {
     40         beginPath();
     41 
     42         fillColor(color);
     43         rect(0, 0, getWidth(), getHeight());
     44         fill();
     45 
     46         closePath();
     47     }
     48 
     49 private:
     50     Color color;
     51 };
     52 
     53 // --------------------------------------------------------------------------------------------------------------------
     54 
     55 class NanoRectanglesContainer : public NanoTopLevelWidget,
     56                                 public IdleCallback
     57 {
     58 public:
     59     explicit NanoRectanglesContainer(Window& parent)
     60         : NanoTopLevelWidget(parent),
     61           rect1(this),
     62           rect2(this),
     63           rect3(this),
     64           rectToHide(1)
     65     {
     66         rect1.setAbsolutePos(100, 100);
     67         rect1.setSize(25, 25);
     68         rect1.setColor(Color(255, 0, 0));
     69 
     70         rect2.setAbsolutePos(200, 200);
     71         rect2.setSize(25, 25);
     72         rect2.setColor(Color(0, 255, 0));
     73 
     74         rect3.setAbsolutePos(300, 300);
     75         rect3.setSize(25, 25);
     76         rect3.setColor(Color(0, 0, 255));
     77 
     78         idleCallback();
     79         addIdleCallback(this, 500);
     80     }
     81 
     82 protected:
     83     void onNanoDisplay() override
     84     {
     85         beginPath();
     86 
     87         fillColor(Color(0.5f, 0.5f, 0.5f));
     88         rect(0, 0, getWidth(), getHeight());
     89         fill();
     90 
     91         closePath();
     92     }
     93 
     94     void idleCallback() override
     95     {
     96         switch (rectToHide)
     97         {
     98         case 1:
     99             rect1.hide();
    100             rect2.show();
    101             rect3.show();
    102             rectToHide = 2;
    103             break;
    104         case 2:
    105             rect1.show();
    106             rect2.hide();
    107             rect3.show();
    108             rectToHide = 3;
    109             break;
    110         case 3:
    111             rect1.show();
    112             rect2.show();
    113             rect3.hide();
    114             rectToHide = 1;
    115             break;
    116         }
    117     }
    118 
    119 private:
    120     NanoRectangle rect1, rect2, rect3;
    121     int rectToHide;
    122 };
    123 
    124 // --------------------------------------------------------------------------------------------------------------------
    125 
    126 class NanoExampleWindow : public Window
    127 {
    128 public:
    129     explicit NanoExampleWindow(Application& app)
    130         : Window(app)
    131     {
    132         {
    133             const ScopedGraphicsContext sgc(*this);
    134             container = new NanoRectanglesContainer(*this);
    135         }
    136 
    137         const uint targetWidth = 400;
    138         const uint targetHeight = 400;
    139         const double scaleFactor = getScaleFactor();
    140 
    141         setGeometryConstraints(targetWidth, targetHeight, true);
    142         setResizable(true);
    143         setSize(targetWidth * scaleFactor, targetHeight * scaleFactor);
    144         setTitle("NanoVG SubWidgets test");
    145     }
    146 
    147 private:
    148     ScopedPointer<NanoRectanglesContainer> container;
    149 };
    150 
    151 // --------------------------------------------------------------------------------------------------------------------
    152 
    153 END_NAMESPACE_DGL
    154 
    155 int main()
    156 {
    157     USE_NAMESPACE_DGL;
    158 
    159     Application app;
    160     NanoExampleWindow win(app);
    161     win.show();
    162     app.exec();
    163 
    164     return 0;
    165 }
    166 
    167 // --------------------------------------------------------------------------------------------------------------------