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-rw-r--r--test/pugl_cairo_test.c255
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diff --git a/test/pugl_cairo_test.c b/test/pugl_cairo_test.c
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--- a/test/pugl_cairo_test.c
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-/*
- Copyright 2012-2019 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
- copyright notice and this permission notice appear in all copies.
-
- THIS 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.
-*/
-
-/**
- @file pugl_cairo_test.c A simple Pugl test that creates a top-level window.
-*/
-
-#include "demo_utils.h"
-#include "test_utils.h"
-
-#include "pugl/pugl.h"
-#include "pugl/pugl_cairo.h"
-
-#include <cairo.h>
-
-#include <math.h>
-#include <stdbool.h>
-#include <stdio.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 {
- int x;
- int y;
- int w;
- int h;
- 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 void
-roundedBox(cairo_t* cr, double x, double y, double w, double h)
-{
- static const double radius = 10;
- static const double degrees = 3.14159265 / 180.0;
-
- cairo_new_sub_path(cr);
- cairo_arc(cr,
- x + w - radius,
- y + radius,
- radius, -90 * degrees, 0 * degrees);
- cairo_arc(cr,
- x + w - radius, y + h - radius,
- radius, 0 * degrees, 90 * degrees);
- cairo_arc(cr,
- x + radius, y + h - radius,
- radius, 90 * degrees, 180 * degrees);
- cairo_arc(cr,
- x + radius, y + radius,
- radius, 180 * degrees, 270 * degrees);
- cairo_close_path(cr);
-}
-
-static void
-buttonDraw(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) {
- 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);
- }
- roundedBox(cr, 0, 0, but->w, but->h);
- cairo_fill_preserve(cr);
-
- // Draw border
- cairo_set_source_rgba(cr, 0.4, 0.9, 0.1, 1);
- cairo_set_line_width(cr, 4.0);
- cairo_stroke(cr);
-
- // Draw label
- cairo_text_extents_t extents;
- cairo_set_font_size(cr, 32.0);
- cairo_text_extents(cr, but->label, &extents);
- cairo_move_to(cr,
- (but->w / 2.0) - extents.width / 2,
- (but->h / 2.0) + extents.height / 2);
- cairo_set_source_rgba(cr, 0, 0, 0, 1);
- cairo_show_text(cr, but->label);
-
- cairo_restore(cr);
-}
-
-static void
-postButtonRedisplay(PuglView* view)
-{
- const PuglRect frame = puglGetFrame(view);
- const double width = frame.width;
- const double height = frame.height;
- const double scaleX = (width - (512 / width)) / 512.0;
- const double scaleY = (height - (512 / height)) / 512.0;
-
- for (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,
- span * 2.0 * scaleX,
- span * 2.0 * scaleY};
-
- puglPostRedisplayRect(view, rect);
- }
-}
-
-static void
-onDisplay(PuglView* view, const PuglEventExpose* event)
-{
- cairo_t* cr = (cairo_t*)puglGetContext(view);
-
- cairo_rectangle(cr, event->x, event->y, event->width, event->height);
- cairo_clip_preserve(cr);
-
- // Draw background
- const PuglRect frame = puglGetFrame(view);
- const double width = frame.width;
- const double height = frame.height;
- if (entered) {
- cairo_set_source_rgb(cr, 0.1, 0.1, 0.1);
- } else {
- cairo_set_source_rgb(cr, 0, 0, 0);
- }
- cairo_fill(cr);
-
- // Scale to view size
- const double scaleX = (width - (512 / width)) / 512.0;
- const double scaleY = (height - (512 / height)) / 512.0;
- cairo_scale(cr, scaleX, scaleY);
-
- // Draw button
- for (Button* b = buttons; b->label; ++b) {
- buttonDraw(cr, b, opts.continuous ? puglGetTime(world) : 0.0);
- }
-
- ++framesDrawn;
-}
-
-static void
-onClose(PuglView* view)
-{
- (void)view;
- quit = 1;
-}
-
-static PuglStatus
-onEvent(PuglView* view, const PuglEvent* event)
-{
- switch (event->type) {
- case PUGL_KEY_PRESS:
- if (event->key.key == 'q' || event->key.key == PUGL_KEY_ESCAPE) {
- quit = 1;
- }
- break;
- case PUGL_BUTTON_PRESS:
- mouseDown = true;
- postButtonRedisplay(view);
- break;
- case PUGL_BUTTON_RELEASE:
- mouseDown = false;
- postButtonRedisplay(view);
- break;
- case PUGL_ENTER_NOTIFY:
- entered = true;
- puglPostRedisplay(view);
- break;
- case PUGL_LEAVE_NOTIFY:
- entered = false;
- puglPostRedisplay(view);
- break;
- case PUGL_EXPOSE:
- onDisplay(view, &event->expose);
- break;
- case PUGL_CLOSE:
- onClose(view);
- break;
- default: break;
- }
-
- return PUGL_SUCCESS;
-}
-
-int
-main(int argc, char** argv)
-{
- opts = puglParseTestOptions(&argc, &argv);
- if (opts.help) {
- puglPrintTestUsage("pugl_test", "");
- return 1;
- }
-
- world = puglNewWorld();
- puglSetClassName(world, "PuglCairoTest");
-
- PuglRect frame = { 0, 0, 512, 512 };
- PuglView* view = puglNewView(world);
- puglSetFrame(view, frame);
- puglSetMinSize(view, 256, 256);
- puglSetViewHint(view, PUGL_RESIZABLE, opts.resizable);
- puglSetBackend(view, puglCairoBackend());
-
- puglSetViewHint(view, PUGL_IGNORE_KEY_REPEAT, opts.ignoreKeyRepeat);
- puglSetEventFunc(view, onEvent);
-
- PuglStatus st = puglCreateWindow(view, "Pugl Test");
- if (st) {
- return logError("Failed to create window (%s)\n", puglStrerror(st));
- }
-
- puglShowWindow(view);
-
- PuglFpsPrinter fpsPrinter = { puglGetTime(world) };
- while (!quit) {
- if (opts.continuous) {
- postButtonRedisplay(view);
- } else {
- puglPollEvents(world, -1);
- }
-
- puglDispatchEvents(world);
-
- if (opts.continuous) {
- puglPrintFps(world, &fpsPrinter, &framesDrawn);
- }
- }
-
- puglFreeView(view);
- puglFreeWorld(world);
- return 0;
-}
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