From d0c878fe0e496083a1e892795c23a1ac939714a9 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Wed, 27 Aug 2014 23:32:26 +0000
Subject: Event-based dispatch.

---
 pugl/pugl_internal.h | 115 +++++++++++++++++++++++++++++++++++++--------------
 1 file changed, 85 insertions(+), 30 deletions(-)

(limited to 'pugl/pugl_internal.h')

diff --git a/pugl/pugl_internal.h b/pugl/pugl_internal.h
index 3db08f7..32d31bf 100644
--- a/pugl/pugl_internal.h
+++ b/pugl/pugl_internal.h
@@ -24,27 +24,18 @@
    If you are copying the pugl code into your source tree, the following
    symbols can be defined to tweak pugl behaviour:
 
-   PUGL_GRAB_FOCUS: Work around reparent keyboard issues by grabbing focus.
-   PUGL_VERBOSE:    Print graphics information to console.
    PUGL_HAVE_CAIRO: Include Cairo support code.
    PUGL_HAVE_GL:    Include OpenGL support code.
 */
 
-#include "pugl.h"
-
-#ifdef PUGL_VERBOSE
-#    include <stdio.h>
-#    define PUGL_LOG(str)       fprintf(stderr, "pugl: " str)
-#    define PUGL_LOGF(fmt, ...) fprintf(stderr, "pugl: " fmt, __VA_ARGS__)
-#else
-#    define PUGL_LOG(str)
-#    define PUGL_LOGF(fmt, ...)
-#endif
+#include "pugl/pugl.h"
+#include "pugl/event.h"
 
 typedef struct PuglInternalsImpl PuglInternals;
 
 struct PuglViewImpl {
 	PuglHandle       handle;
+	PuglEventFunc    eventFunc;
 	PuglCloseFunc    closeFunc;
 	PuglDisplayFunc  displayFunc;
 	PuglKeyboardFunc keyboardFunc;
@@ -71,8 +62,6 @@ struct PuglViewImpl {
 
 PuglInternals* puglInitInternals();
 
-void puglDefaultReshape(PuglView* view, int width, int height);
-
 PuglView*
 puglInit(int* pargc, char** argv)
 {
@@ -143,27 +132,15 @@ puglGetModifiers(PuglView* view)
 }
 
 void
-puglDefaultReshape(PuglView* view, int width, int height)
+puglIgnoreKeyRepeat(PuglView* view, bool ignore)
 {
-#ifdef PUGL_HAVE_GL
-	glMatrixMode(GL_PROJECTION);
-	glLoadIdentity();
-	glOrtho(0, width, height, 0, 0, 1);
-	glViewport(0, 0, width, height);
-
-	glMatrixMode(GL_MODELVIEW);
-	glLoadIdentity();
-#endif
-	return;
-
-	// unused
-	(void)view;
+	view->ignoreKeyRepeat = ignore;
 }
 
 void
-puglIgnoreKeyRepeat(PuglView* view, bool ignore)
+puglSetEventFunc(PuglView* view, PuglEventFunc eventFunc)
 {
-	view->ignoreKeyRepeat = ignore;
+	view->eventFunc = eventFunc;
 }
 
 void
@@ -213,3 +190,81 @@ puglSetSpecialFunc(PuglView* view, PuglSpecialFunc specialFunc)
 {
 	view->specialFunc = specialFunc;
 }
+
+void
+puglEnterContext(PuglView* view);
+
+void
+puglLeaveContext(PuglView* view, bool flush);
+
+static void
+puglDispatchEvent(PuglView* view, const PuglEvent* event)
+{
+	if (view->eventFunc) {
+		view->eventFunc(view, event);
+	}
+
+	switch (event->type) {
+	case PUGL_CONFIGURE:
+		puglEnterContext(view);
+		view->width  = event->configure.width;
+		view->height = event->configure.height;
+		if (view->reshapeFunc) {
+			view->reshapeFunc(view, view->width, view->height);
+		}
+		puglLeaveContext(view, false);
+		break;
+	case PUGL_EXPOSE:
+		if (event->expose.count == 0) {
+			puglEnterContext(view);
+			if (view->displayFunc) {
+				view->displayFunc(view);
+			}
+			view->redisplay = false;
+			puglLeaveContext(view, true);
+		}
+		break;
+	case PUGL_MOTION_NOTIFY:
+		view->event_timestamp_ms = event->motion.time;
+		view->mods               = event->motion.state;
+		if (view->motionFunc) {
+			view->motionFunc(view, event->motion.x, event->motion.y);
+		}
+		break;
+	case PUGL_SCROLL:
+		if (view->scrollFunc) {
+			view->scrollFunc(view,
+			                 event->scroll.x, event->scroll.y,
+			                 event->scroll.dx, event->scroll.dy);
+		}
+		break;
+	case PUGL_BUTTON_PRESS:
+	case PUGL_BUTTON_RELEASE:
+		view->event_timestamp_ms = event->button.time;
+		view->mods               = event->button.state;
+		if (view->mouseFunc) {
+			view->mouseFunc(view,
+			                event->button.button,
+			                event->type == PUGL_BUTTON_PRESS,
+			                event->button.x,
+			                event->button.y);
+		}
+		break;
+	case PUGL_KEY_PRESS:
+	case PUGL_KEY_RELEASE:
+		view->event_timestamp_ms = event->key.time;
+		view->mods               = event->key.state;
+		if (event->key.special && view->specialFunc) {
+			view->specialFunc(view,
+			                  event->type == PUGL_KEY_PRESS,
+			                  event->key.special);
+		} else if (event->key.character && view->keyboardFunc) {
+			view->keyboardFunc(view,
+			                   event->type == PUGL_KEY_PRESS,
+			                   event->key.character);
+		}
+		break;
+	default:
+		break;
+	}
+}
-- 
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