Complete images example

examples/Makefile

@@ -14,9 +14,9 @@ LINK_FLAGS      += -L.. -ldgl $(DGL_LIBS)
 # --------------------------------------------------------------
 
 ifeq ($(WIN32),true)
-TARGETS = app.exe image.exe nekobi-ui.exe
+TARGETS = app.exe color images.exe nekobi-ui.exe
 else
-TARGETS = app image nekobi-ui
+TARGETS = app color images nekobi-ui
 endif
 
 # --------------------------------------------------------------
@@ -38,7 +38,7 @@ app: app.cpp ../dgl/*
 color: color.cpp ../dgl/*
 	$(CXX) $< $(BUILD_CXX_FLAGS) $(LINK_FLAGS) -o $@
 
-image: image.cpp ../dgl/*
+images: images.cpp ../dgl/*
 	$(CXX) $< $(BUILD_CXX_FLAGS) $(LINK_FLAGS) -o $@
 
 nekobi-ui: nekobi-ui.cpp nekobi-ui_src/* ../dgl/*

examples/color.cpp

@@ -127,7 +127,7 @@ private:
         width  = width*2/3;
         height = height*2/3;
 
-        // paint invert color (in 2/3 size)
+        // paint inverted color (in 2/3 size)
         glColor3b(100-r, 100-g, 100-b);
 
         glBegin(GL_QUADS);

examples/image.cpp

@@ -1,73 +0,0 @@
-/*
- * DISTRHO Plugin Toolkit (DPT)
- * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
- *
- * Permission to use, copy, modify, and/or distribute this software for any purpose with
- * or without fee is hereby granted, provided that the above copyright notice and this
- * permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
- * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
- * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
- * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-// ------------------------------------------------------
-// DGL Image
-
-#include "Image.hpp"
-
-// ------------------------------------------------------
-// DGL Widget and StandaloneWindow
-
-#include "Widget.hpp"
-#include "StandaloneWindow.hpp"
-
-// ------------------------------------------------------
-// use namespace
-
-using namespace DGL;
-
-// ------------------------------------------------------
-// our widget
-
-class ExampleImageWidget : public Widget
-{
-public:
-    ExampleImageWidget(Window& win)
-        : Widget(win)
-    {
-        // TODO: load image
-    }
-
-private:
-    void onDisplay() override
-    {
-        fImage.draw();
-    }
-
-    Image fImage;
-};
-
-// ------------------------------------------------------
-// main entry point
-
-int main()
-{
-    StandaloneWindow appWin;
-    Window& win(appWin.getWindow());
-
-    ExampleImageWidget gui(win);
-    win.setResizable(false);
-    win.setSize(200, 200);
-    win.setTitle("Image");
-    win.show();
-
-    appWin.exec();
-
-    return 0;
-}
-
-// ------------------------------------------------------

examples/images.cpp

@@ -0,0 +1,214 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+// ------------------------------------------------------
+// Pics
+
+#include "images_src/CatPics.cpp"
+
+// ------------------------------------------------------
+// DGL Stuff
+
+#include "Image.hpp"
+#include "Widget.hpp"
+#include "StandaloneWindow.hpp"
+
+// ------------------------------------------------------
+// use namespace
+
+using namespace DGL;
+
+// ------------------------------------------------------
+// our widget
+
+class ExampleImagesWidget : public App::IdleCallback,
+                                  Widget
+{
+public:
+    static const int kImg1y = 0;
+    static const int kImg2y = 500/2-CatPics::cat2Height/2;
+    static const int kImg3x = 400/3-CatPics::cat3Width/3;
+
+    static const int kImg1max = 500-CatPics::cat1Width;
+    static const int kImg2max = 500-CatPics::cat2Width;
+    static const int kImg3max = 400-CatPics::cat3Height;
+
+    ExampleImagesWidget(Window& win)
+        : Widget(win),
+          fImgTop1st(1),
+          fImgTop2nd(2),
+          fImgTop3rd(3),
+          fImg1x(0),
+          fImg2x(kImg2max),
+          fImg3y(kImg3max),
+          fImg1rev(false),
+          fImg2rev(true),
+          fImg3rev(true),
+          fImg1(CatPics::cat1Data, CatPics::cat1Width, CatPics::cat1Height, GL_BGR),
+          fImg2(CatPics::cat2Data, CatPics::cat2Width, CatPics::cat2Height, GL_BGR),
+          fImg3(CatPics::cat3Data, CatPics::cat3Width, CatPics::cat3Height, GL_BGR)
+    {
+    }
+
+private:
+    void idleCallback() override
+    {
+        if (fImg1rev)
+        {
+            fImg1x -= 2;
+            if (fImg1x <= 0)
+            {
+                fImg1rev = false;
+                setNewTopImg(1);
+            }
+        }
+        else
+        {
+            fImg1x += 2;
+            if (fImg1x >= kImg1max)
+            {
+                fImg1rev = true;
+                setNewTopImg(1);
+            }
+        }
+
+        if (fImg2rev)
+        {
+            fImg2x -= 1;
+            if (fImg2x <= 0)
+            {
+                fImg2rev = false;
+                setNewTopImg(2);
+            }
+        }
+        else
+        {
+            fImg2x += 4;
+            if (fImg2x >= kImg2max)
+            {
+                fImg2rev = true;
+                setNewTopImg(2);
+            }
+        }
+
+        if (fImg3rev)
+        {
+            fImg3y -= 3;
+            if (fImg3y <= 0)
+            {
+                fImg3rev = false;
+                setNewTopImg(3);
+            }
+        }
+        else
+        {
+            fImg3y += 3;
+            if (fImg3y >= kImg3max)
+            {
+                fImg3rev = true;
+                setNewTopImg(3);
+            }
+        }
+
+        repaint();
+    }
+
+    void setNewTopImg(const int imgId)
+    {
+        if (fImgTop1st == imgId)
+            return;
+
+        if (fImgTop2nd == imgId)
+        {
+            fImgTop2nd = fImgTop1st;
+            fImgTop1st =  imgId;
+            return;
+        }
+
+        fImgTop3rd = fImgTop2nd;
+        fImgTop2nd = fImgTop1st;
+        fImgTop1st =  imgId;
+    }
+
+    void onDisplay() override
+    {
+        switch (fImgTop3rd)
+        {
+        case 1:
+            fImg1.draw(fImg1x, kImg1y);
+            break;
+        case 2:
+            fImg2.draw(fImg2x, kImg2y);
+            break;
+        case 3:
+            fImg3.draw(kImg3x, fImg3y);
+            break;
+        };
+
+        switch (fImgTop2nd)
+        {
+        case 1:
+            fImg1.draw(fImg1x, kImg1y);
+            break;
+        case 2:
+            fImg2.draw(fImg2x, kImg2y);
+            break;
+        case 3:
+            fImg3.draw(kImg3x, fImg3y);
+            break;
+        };
+
+        switch (fImgTop1st)
+        {
+        case 1:
+            fImg1.draw(fImg1x, kImg1y);
+            break;
+        case 2:
+            fImg2.draw(fImg2x, kImg2y);
+            break;
+        case 3:
+            fImg3.draw(kImg3x, fImg3y);
+            break;
+        };
+    }
+
+    int fImgTop1st, fImgTop2nd, fImgTop3rd;
+    int fImg1x, fImg2x, fImg3y;
+    bool fImg1rev, fImg2rev, fImg3rev;
+    Image fImg1, fImg2, fImg3;
+};
+
+// ------------------------------------------------------
+// main entry point
+
+int main()
+{
+    App app;
+    Window win(app);
+    ExampleImagesWidget images(win);
+
+    app.addIdleCallback(&images);
+
+    win.setResizable(false);
+    win.setSize(500, 400);
+    win.setTitle("Images");
+    win.show();
+    app.exec();
+
+    return 0;
+}
+
+// ------------------------------------------------------

examples/images_src/CREDITS.txt

@@ -0,0 +1,3 @@
+cat1.png: http://www.flickr.com/photos/tomitapio/4305303148/
+cat2.png: http://www.flickr.com/photos/aigle_dore/6672148713/
+cat3.png: http://www.flickr.com/photos/aigle_dore/5889008066/

examples/images_src/CatPics.hpp

@@ -0,0 +1,25 @@
+/* (Auto-generated binary data file). */
+
+#ifndef BINARY_CATPICS_HPP
+#define BINARY_CATPICS_HPP
+
+namespace CatPics
+{
+    extern const char* cat1Data;
+    const unsigned int cat1DataSize = 216090;
+    const unsigned int cat1Width    = 294;
+    const unsigned int cat1Height   = 245;
+
+    extern const char* cat2Data;
+    const unsigned int cat2DataSize = 117600;
+    const unsigned int cat2Width    = 245;
+    const unsigned int cat2Height   = 160;
+
+    extern const char* cat3Data;
+    const unsigned int cat3DataSize = 111600;
+    const unsigned int cat3Width    = 248;
+    const unsigned int cat3Height   = 150;
+}
+
+#endif // BINARY_CATPICS_HPP
+