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-rw-r--r--examples/pugl_cairo_demo.c100
1 files changed, 56 insertions, 44 deletions
diff --git a/examples/pugl_cairo_demo.c b/examples/pugl_cairo_demo.c
index 94ac26e..2f62e11 100644
--- a/examples/pugl_cairo_demo.c
+++ b/examples/pugl_cairo_demo.c
@@ -1,5 +1,5 @@
/*
- Copyright 2012-2019 David Robillard <http://drobilla.net>
+ Copyright 2012-2020 David Robillard <http://drobilla.net>
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
@@ -29,14 +29,16 @@
#include <math.h>
#include <stdbool.h>
#include <stdio.h>
+#include <string.h>
-static PuglWorld* world = NULL;
-static PuglTestOptions opts = {0};
-
-static int quit = 0;
-static bool entered = false;
-static bool mouseDown = false;
-static unsigned framesDrawn = 0;
+typedef struct {
+ PuglTestOptions opts;
+ PuglWorld* world;
+ unsigned framesDrawn;
+ int quit;
+ bool entered;
+ bool mouseDown;
+} PuglTestApp;
typedef struct {
int x;
@@ -46,11 +48,11 @@ typedef struct {
const char* label;
} Button;
-static Button buttons[] = { { 128, 128, 64, 64, "1" },
- { 384, 128, 64, 64, "2" },
- { 128, 384, 64, 64, "3" },
- { 384, 384, 64, 64, "4" },
- { 0, 0, 0, 0, NULL } };
+static const Button buttons[] = {{128, 128, 64, 64, "1"},
+ {384, 128, 64, 64, "2"},
+ {128, 384, 64, 64, "3"},
+ {384, 384, 64, 64, "4"},
+ {0, 0, 0, 0, NULL}};
static void
roundedBox(cairo_t* cr, double x, double y, double w, double h)
@@ -76,14 +78,14 @@ roundedBox(cairo_t* cr, double x, double y, double w, double h)
}
static void
-buttonDraw(cairo_t* cr, const Button* but, const double time)
+buttonDraw(PuglTestApp* app, cairo_t* cr, const Button* but, const double time)
{
cairo_save(cr);
cairo_translate(cr, but->x, but->y);
cairo_rotate(cr, sin(time) * 3.141592);
// Draw base
- if (mouseDown) {
+ if (app->mouseDown) {
cairo_set_source_rgba(cr, 0.4, 0.9, 0.1, 1);
} else {
cairo_set_source_rgba(cr, 0.3, 0.5, 0.1, 1);
@@ -118,7 +120,7 @@ postButtonRedisplay(PuglView* view)
const double scaleX = (width - (512 / width)) / 512.0;
const double scaleY = (height - (512 / height)) / 512.0;
- for (Button* b = buttons; b->label; ++b) {
+ for (const Button* b = buttons; b->label; ++b) {
const double span = sqrt(b->w * b->w + b->h * b->h);
const PuglRect rect = {(b->x - span) * scaleX,
(b->y - span) * scaleY,
@@ -130,7 +132,7 @@ postButtonRedisplay(PuglView* view)
}
static void
-onDisplay(PuglView* view, const PuglEventExpose* event)
+onDisplay(PuglTestApp* app, PuglView* view, const PuglEventExpose* event)
{
cairo_t* cr = (cairo_t*)puglGetContext(view);
@@ -141,7 +143,7 @@ onDisplay(PuglView* view, const PuglEventExpose* event)
const PuglRect frame = puglGetFrame(view);
const double width = frame.width;
const double height = frame.height;
- if (entered) {
+ if (app->entered) {
cairo_set_source_rgb(cr, 0.1, 0.1, 0.1);
} else {
cairo_set_source_rgb(cr, 0, 0, 0);
@@ -154,47 +156,53 @@ onDisplay(PuglView* view, const PuglEventExpose* event)
cairo_scale(cr, scaleX, scaleY);
// Draw button
- for (Button* b = buttons; b->label; ++b) {
- buttonDraw(cr, b, opts.continuous ? puglGetTime(world) : 0.0);
+ for (const Button* b = buttons; b->label; ++b) {
+ buttonDraw(app,
+ cr,
+ b,
+ app->opts.continuous ? puglGetTime(app->world) : 0.0);
}
- ++framesDrawn;
+ ++app->framesDrawn;
}
static void
onClose(PuglView* view)
{
- (void)view;
- quit = 1;
+ PuglTestApp* app = (PuglTestApp*)puglGetHandle(view);
+
+ app->quit = 1;
}
static PuglStatus
onEvent(PuglView* view, const PuglEvent* event)
{
+ PuglTestApp* app = (PuglTestApp*)puglGetHandle(view);
+
switch (event->type) {
case PUGL_KEY_PRESS:
if (event->key.key == 'q' || event->key.key == PUGL_KEY_ESCAPE) {
- quit = 1;
+ app->quit = 1;
}
break;
case PUGL_BUTTON_PRESS:
- mouseDown = true;
+ app->mouseDown = true;
postButtonRedisplay(view);
break;
case PUGL_BUTTON_RELEASE:
- mouseDown = false;
+ app->mouseDown = false;
postButtonRedisplay(view);
break;
case PUGL_ENTER_NOTIFY:
- entered = true;
+ app->entered = true;
puglPostRedisplay(view);
break;
case PUGL_LEAVE_NOTIFY:
- entered = false;
+ app->entered = false;
puglPostRedisplay(view);
break;
case PUGL_EXPOSE:
- onDisplay(view, &event->expose);
+ onDisplay(app, view, &event->expose);
break;
case PUGL_CLOSE:
onClose(view);
@@ -208,23 +216,27 @@ onEvent(PuglView* view, const PuglEvent* event)
int
main(int argc, char** argv)
{
- opts = puglParseTestOptions(&argc, &argv);
- if (opts.help) {
+ PuglTestApp app;
+ memset(&app, 0, sizeof(app));
+
+ app.opts = puglParseTestOptions(&argc, &argv);
+ if (app.opts.help) {
puglPrintTestUsage("pugl_test", "");
return 1;
}
- world = puglNewWorld();
- puglSetClassName(world, "PuglCairoTest");
+ app.world = puglNewWorld();
+ puglSetClassName(app.world, "PuglCairoTest");
PuglRect frame = { 0, 0, 512, 512 };
- PuglView* view = puglNewView(world);
+ PuglView* view = puglNewView(app.world);
puglSetFrame(view, frame);
puglSetMinSize(view, 256, 256);
- puglSetViewHint(view, PUGL_RESIZABLE, opts.resizable);
+ puglSetViewHint(view, PUGL_RESIZABLE, app.opts.resizable);
+ puglSetHandle(view, &app);
puglSetBackend(view, puglCairoBackend());
- puglSetViewHint(view, PUGL_IGNORE_KEY_REPEAT, opts.ignoreKeyRepeat);
+ puglSetViewHint(view, PUGL_IGNORE_KEY_REPEAT, app.opts.ignoreKeyRepeat);
puglSetEventFunc(view, onEvent);
PuglStatus st = puglCreateWindow(view, "Pugl Test");
@@ -234,22 +246,22 @@ main(int argc, char** argv)
puglShowWindow(view);
- PuglFpsPrinter fpsPrinter = { puglGetTime(world) };
- while (!quit) {
- if (opts.continuous) {
+ PuglFpsPrinter fpsPrinter = { puglGetTime(app.world) };
+ while (!app.quit) {
+ if (app.opts.continuous) {
postButtonRedisplay(view);
} else {
- puglPollEvents(world, -1);
+ puglPollEvents(app.world, -1);
}
- puglDispatchEvents(world);
+ puglDispatchEvents(app.world);
- if (opts.continuous) {
- puglPrintFps(world, &fpsPrinter, &framesDrawn);
+ if (app.opts.continuous) {
+ puglPrintFps(app.world, &fpsPrinter, &app.framesDrawn);
}
}
puglFreeView(view);
- puglFreeWorld(world);
+ puglFreeWorld(app.world);
return 0;
}
generated by cgit v1.2.1 (git 2.18.0) at 2024-06-30 10:22:19 +0000