Added scrollbar shortcuts to demos

demo/allegro5/nuklear_allegro.h

@@ -253,12 +253,18 @@ nk_allegro_handle_event(ALLEGRO_EVENT *evt)
             if (evt->keyboard.modifiers & ALLEGRO_KEYMOD_CTRL)
                 nk_input_key(ctx, NK_KEY_TEXT_WORD_RIGHT, down);
             else nk_input_key(ctx, NK_KEY_RIGHT, down);
-        } else if (sym == ALLEGRO_KEY_HOME)
+        } else if (sym == ALLEGRO_KEY_HOME) {
             nk_input_key(ctx, NK_KEY_TEXT_START, down);
-        else if (sym == ALLEGRO_KEY_END)
+            nk_input_key(ctx, NK_KEY_SCROLL_START, down);
+        } else if (sym == ALLEGRO_KEY_END) {
             nk_input_key(ctx, NK_KEY_TEXT_END, down);
-        else if (sym == ALLEGRO_KEY_C)
+            nk_input_key(ctx, NK_KEY_SCROLL_END, down);
+        } else if (sym == ALLEGRO_KEY_C)
             nk_input_key(ctx, NK_KEY_COPY, down && evt->keyboard.modifiers & ALLEGRO_KEYMOD_CTRL);
+        else if (sym == ALLEGRO_KEY_PGUP)
+            nk_input_key(ctx, NK_KEY_SCROLL_UP, down);
+        else if (sym == ALLEGRO_KEY_PGDN)
+            nk_input_key(ctx, NK_KEY_SCROLL_DOWN, down);
         else if (sym == ALLEGRO_KEY_V)
             nk_input_key(ctx, NK_KEY_PASTE, down && evt->keyboard.modifiers & ALLEGRO_KEYMOD_CTRL);
         else if (sym == ALLEGRO_KEY_X)

demo/d3d11/nuklear_d3d11.h

@@ -236,10 +236,20 @@ nk_d3d11_handle_event(HWND wnd, UINT msg, WPARAM wparam, LPARAM lparam)
 
         case VK_HOME:
             nk_input_key(&d3d11.ctx, NK_KEY_TEXT_START, down);
+            nk_input_key(&d3d11.ctx, NK_KEY_SCROLL_START, down);
             return 1;
 
         case VK_END:
             nk_input_key(&d3d11.ctx, NK_KEY_TEXT_END, down);
+            nk_input_key(&d3d11.ctx, NK_KEY_SCROLL_END, down);
+            return 1;
+
+        case VK_NEXT:
+            nk_input_key(&d3d11.ctx, NK_KEY_SCROLL_DOWN, down);
+            return 1;
+
+        case VK_PRIOR:
+            nk_input_key(&d3d11.ctx, NK_KEY_SCROLL_UP, down);
             return 1;
 
         case 'C':
@@ -558,7 +568,7 @@ nk_d3d11_font_stash_end(void)
 {
     const void *image; int w, h;
     image = nk_font_atlas_bake(&d3d11.atlas, &w, &h, NK_FONT_ATLAS_RGBA32);
-    
+
     /* upload font to texture and create texture view */
     {
         ID3D11Texture2D *font_texture;

demo/gdi/nuklear_gdi.h

@@ -559,10 +559,20 @@ nk_gdi_handle_event(HWND wnd, UINT msg, WPARAM wparam, LPARAM lparam)
 
         case VK_HOME:
             nk_input_key(&gdi.ctx, NK_KEY_TEXT_START, down);
+            nk_input_key(&d3d11.ctx, NK_KEY_SCROLL_START, down);
             return 1;
 
         case VK_END:
             nk_input_key(&gdi.ctx, NK_KEY_TEXT_END, down);
+            nk_input_key(&d3d11.ctx, NK_KEY_SCROLL_END, down);
+            return 1;
+
+        case VK_NEXT:
+            nk_input_key(&d3d11.ctx, NK_KEY_SCROLL_DOWN, down);
+            return 1;
+
+        case VK_PRIOR:
+            nk_input_key(&d3d11.ctx, NK_KEY_SCROLL_UP, down);
             return 1;
 
         case 'C':

demo/gdip/nuklear_gdip.h

@@ -792,11 +792,21 @@ nk_gdip_handle_event(HWND wnd, UINT msg, WPARAM wparam, LPARAM lparam)
             return 1;
 
         case VK_HOME:
-            nk_input_key(&gdip.ctx, NK_KEY_TEXT_START, down);
+            nk_input_key(&gdi.ctx, NK_KEY_TEXT_START, down);
+            nk_input_key(&d3d11.ctx, NK_KEY_SCROLL_START, down);
             return 1;
 
         case VK_END:
-            nk_input_key(&gdip.ctx, NK_KEY_TEXT_END, down);
+            nk_input_key(&gdi.ctx, NK_KEY_TEXT_END, down);
+            nk_input_key(&d3d11.ctx, NK_KEY_SCROLL_END, down);
+            return 1;
+
+        case VK_NEXT:
+            nk_input_key(&d3d11.ctx, NK_KEY_SCROLL_DOWN, down);
+            return 1;
+
+        case VK_PRIOR:
+            nk_input_key(&d3d11.ctx, NK_KEY_SCROLL_UP, down);
             return 1;
 
         case 'C':

demo/glfw_opengl2/nuklear_glfw_gl2.h

@@ -277,6 +277,10 @@ nk_glfw3_new_frame(void)
     nk_input_key(ctx, NK_KEY_DOWN, glfwGetKey(win, GLFW_KEY_DOWN) == GLFW_PRESS);
     nk_input_key(ctx, NK_KEY_TEXT_START, glfwGetKey(win, GLFW_KEY_HOME) == GLFW_PRESS);
     nk_input_key(ctx, NK_KEY_TEXT_END, glfwGetKey(win, GLFW_KEY_END) == GLFW_PRESS);
+    nk_input_key(ctx, NK_KEY_SCROLL_START, glfwGetKey(win, GLFW_KEY_HOME) == GLFW_PRESS);
+    nk_input_key(ctx, NK_KEY_SCROLL_END, glfwGetKey(win, GLFW_KEY_END) == GLFW_PRESS);
+    nk_input_key(ctx, NK_KEY_SCROLL_DOWN, glfwGetKey(win, GLFW_KEY_PAGE_DOWN) == GLFW_PRESS);
+    nk_input_key(ctx, NK_KEY_SCROLL_UP, glfwGetKey(win, GLFW_KEY_PAGE_UP) == GLFW_PRESS);
     nk_input_key(ctx, NK_KEY_SHIFT, glfwGetKey(win, GLFW_KEY_LEFT_SHIFT) == GLFW_PRESS||
                                     glfwGetKey(win, GLFW_KEY_RIGHT_SHIFT) == GLFW_PRESS);
 

demo/glfw_opengl3/nuklear_glfw_gl3.h

@@ -385,6 +385,10 @@ nk_glfw3_new_frame(void)
     nk_input_key(ctx, NK_KEY_DOWN, glfwGetKey(win, GLFW_KEY_DOWN) == GLFW_PRESS);
     nk_input_key(ctx, NK_KEY_TEXT_START, glfwGetKey(win, GLFW_KEY_HOME) == GLFW_PRESS);
     nk_input_key(ctx, NK_KEY_TEXT_END, glfwGetKey(win, GLFW_KEY_END) == GLFW_PRESS);
+    nk_input_key(ctx, NK_KEY_SCROLL_START, glfwGetKey(win, GLFW_KEY_HOME) == GLFW_PRESS);
+    nk_input_key(ctx, NK_KEY_SCROLL_END, glfwGetKey(win, GLFW_KEY_END) == GLFW_PRESS);
+    nk_input_key(ctx, NK_KEY_SCROLL_DOWN, glfwGetKey(win, GLFW_KEY_PAGE_DOWN) == GLFW_PRESS);
+    nk_input_key(ctx, NK_KEY_SCROLL_UP, glfwGetKey(win, GLFW_KEY_PAGE_UP) == GLFW_PRESS);
     nk_input_key(ctx, NK_KEY_SHIFT, glfwGetKey(win, GLFW_KEY_LEFT_SHIFT) == GLFW_PRESS||
                                     glfwGetKey(win, GLFW_KEY_RIGHT_SHIFT) == GLFW_PRESS);
 

demo/sdl_opengl2/nuklear_sdl_gl2.h

@@ -245,11 +245,17 @@ nk_sdl_handle_event(SDL_Event *evt)
             nk_input_key(ctx, NK_KEY_TAB, down);
         else if (sym == SDLK_BACKSPACE)
             nk_input_key(ctx, NK_KEY_BACKSPACE, down);
-        else if (sym == SDLK_HOME)
+        else if (sym == SDLK_HOME) {
             nk_input_key(ctx, NK_KEY_TEXT_START, down);
-        else if (sym == SDLK_END)
+            nk_input_key(ctx, NK_KEY_SCROLL_START, down);
+        } else if (sym == SDLK_END) {
             nk_input_key(ctx, NK_KEY_TEXT_END, down);
-        else if (sym == SDLK_z)
+            nk_input_key(ctx, NK_KEY_SCROLL_END, down);
+        } else if (sym == SDLK_PAGEDOWN) {
+            nk_input_key(ctx, NK_KEY_SCROLL_DOWN, down);
+        } else if (sym == SDLK_PAGEUP) {
+            nk_input_key(ctx, NK_KEY_SCROLL_UP, down);
+        } else if (sym == SDLK_z)
             nk_input_key(ctx, NK_KEY_TEXT_UNDO, down && state[SDL_SCANCODE_LCTRL]);
         else if (sym == SDLK_r)
             nk_input_key(ctx, NK_KEY_TEXT_REDO, down && state[SDL_SCANCODE_LCTRL]);

demo/sdl_opengl3/nuklear_sdl_gl3.h

@@ -356,11 +356,17 @@ nk_sdl_handle_event(SDL_Event *evt)
             nk_input_key(ctx, NK_KEY_TAB, down);
         else if (sym == SDLK_BACKSPACE)
             nk_input_key(ctx, NK_KEY_BACKSPACE, down);
-        else if (sym == SDLK_HOME)
+        else if (sym == SDLK_HOME) {
             nk_input_key(ctx, NK_KEY_TEXT_START, down);
-        else if (sym == SDLK_END)
+            nk_input_key(ctx, NK_KEY_SCROLL_START, down);
+        } else if (sym == SDLK_END) {
             nk_input_key(ctx, NK_KEY_TEXT_END, down);
-        else if (sym == SDLK_z)
+            nk_input_key(ctx, NK_KEY_SCROLL_END, down);
+        } else if (sym == SDLK_PAGEDOWN) {
+            nk_input_key(ctx, NK_KEY_SCROLL_DOWN, down);
+        } else if (sym == SDLK_PAGEUP) {
+            nk_input_key(ctx, NK_KEY_SCROLL_UP, down);
+        } else if (sym == SDLK_z)
             nk_input_key(ctx, NK_KEY_TEXT_UNDO, down && state[SDL_SCANCODE_LCTRL]);
         else if (sym == SDLK_r)
             nk_input_key(ctx, NK_KEY_TEXT_REDO, down && state[SDL_SCANCODE_LCTRL]);

demo/x11/nuklear_xlib.h

@@ -512,10 +512,16 @@ nk_xlib_handle_event(Display *dpy, int screen, Window win, XEvent *evt)
         else if (*code == XK_Up)        nk_input_key(ctx, NK_KEY_UP, down);
         else if (*code == XK_Down)      nk_input_key(ctx, NK_KEY_DOWN, down);
         else if (*code == XK_BackSpace) nk_input_key(ctx, NK_KEY_BACKSPACE, down);
-        else if (*code == XK_Home)      nk_input_key(ctx, NK_KEY_TEXT_START, down);
-        else if (*code == XK_End)       nk_input_key(ctx, NK_KEY_TEXT_END, down);
         else if (*code == XK_Escape)    nk_input_key(ctx, NK_KEY_TEXT_RESET_MODE, down);
-        else {
+        else if (*code == XK_Page_Up)   nk_input_key(ctx, NK_KEY_SCROLL_UP, down);
+        else if (*code == XK_Page_Down) nk_input_key(ctx, NK_KEY_SCROLL_DOWN, down);
+        else if (*code == XK_Home) {
+            nk_input_key(ctx, NK_KEY_TEXT_START, down);
+            nk_input_key(ctx, NK_KEY_SCROLL_START, down);
+        } else if (*code == XK_End) {
+            nk_input_key(ctx, NK_KEY_TEXT_END, down);
+            nk_input_key(ctx, NK_KEY_SCROLL_END, down);
+        } else {
             if (*code == 'c' && (evt->xkey.state & ControlMask))
                 nk_input_key(ctx, NK_KEY_COPY, down);
             else if (*code == 'v' && (evt->xkey.state & ControlMask))

demo/x11_opengl2/nuklear_xlib_gl2.h

@@ -227,10 +227,16 @@ nk_x11_handle_event(XEvent *evt)
         else if (*code == XK_Left)      nk_input_key(ctx, NK_KEY_LEFT, down);
         else if (*code == XK_Right)     nk_input_key(ctx, NK_KEY_RIGHT, down);
         else if (*code == XK_BackSpace) nk_input_key(ctx, NK_KEY_BACKSPACE, down);
-        else if (*code == XK_Home)  nk_input_key(ctx, NK_KEY_TEXT_START, down);
-        else if (*code == XK_End)  nk_input_key(ctx, NK_KEY_TEXT_END, down);
         else if (*code == XK_space && !down) nk_input_char(ctx, ' ');
-        else {
+        else if (*code == XK_Page_Up)   nk_input_key(ctx, NK_KEY_SCROLL_UP, down);
+        else if (*code == XK_Page_Down) nk_input_key(ctx, NK_KEY_SCROLL_DOWN, down);
+        else if (*code == XK_Home) {
+            nk_input_key(ctx, NK_KEY_TEXT_START, down);
+            nk_input_key(ctx, NK_KEY_SCROLL_START, down);
+        } else if (*code == XK_End) {
+            nk_input_key(ctx, NK_KEY_TEXT_END, down);
+            nk_input_key(ctx, NK_KEY_SCROLL_END, down);
+        } else {
             if (*code == 'c' && (evt->xkey.state & ControlMask))
                 nk_input_key(ctx, NK_KEY_COPY, down);
             else if (*code == 'v' && (evt->xkey.state & ControlMask))

demo/x11_opengl3/nuklear_xlib_gl3.h

@@ -597,10 +597,16 @@ nk_x11_handle_event(XEvent *evt)
         else if (*code == XK_Left)      nk_input_key(ctx, NK_KEY_LEFT, down);
         else if (*code == XK_Right)     nk_input_key(ctx, NK_KEY_RIGHT, down);
         else if (*code == XK_BackSpace) nk_input_key(ctx, NK_KEY_BACKSPACE, down);
-        else if (*code == XK_Home)  nk_input_key(ctx, NK_KEY_TEXT_START, down);
-        else if (*code == XK_End)  nk_input_key(ctx, NK_KEY_TEXT_END, down);
         else if (*code == XK_space && !down) nk_input_char(ctx, ' ');
-        else {
+        else if (*code == XK_Page_Up)   nk_input_key(ctx, NK_KEY_SCROLL_UP, down);
+        else if (*code == XK_Page_Down) nk_input_key(ctx, NK_KEY_SCROLL_DOWN, down);
+        else if (*code == XK_Home) {
+            nk_input_key(ctx, NK_KEY_TEXT_START, down);
+            nk_input_key(ctx, NK_KEY_SCROLL_START, down);
+        } else if (*code == XK_End) {
+            nk_input_key(ctx, NK_KEY_TEXT_END, down);
+            nk_input_key(ctx, NK_KEY_SCROLL_END, down);
+        } else {
             if (*code == 'c' && (evt->xkey.state & ControlMask))
                 nk_input_key(ctx, NK_KEY_COPY, down);
             else if (*code == 'v' && (evt->xkey.state & ControlMask))