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main.c
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main.c
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/*
* Copyright (c) 2011-2012 Research In Motion Limited.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <assert.h>
#include <screen/screen.h>
#include <bps/navigator.h>
#include <bps/screen.h>
#include <bps/bps.h>
#include <bps/event.h>
#include <stdlib.h>
#include <unistd.h>
#include <EGL/egl.h>
#include <GLES/gl.h>
#include "bbutil.h"
#include <bps/virtualkeyboard.h>
#include <sys/keycodes.h>
#include <math.h>
static GLfloat vertices[8];
static GLfloat colors[16];
#define ANGLE_INCREMENT 3.0f
#define CIRCLE_DEGREES 360.0f
static float angle = 0.0;
void handleScreenEvent(bps_event_t *event)
{
screen_event_t screen_event = screen_event_get_event(event);
int screen_val;
screen_get_event_property_iv(screen_event, SCREEN_PROPERTY_TYPE, &screen_val);
switch (screen_val) {
case SCREEN_EVENT_KEYBOARD:
screen_get_event_property_iv(screen_event, SCREEN_PROPERTY_KEY_FLAGS, &screen_val);
if (screen_val & KEY_DOWN) {
screen_get_event_property_iv(screen_event, SCREEN_PROPERTY_KEY_SYM,&screen_val);
printf("The '%c' key was pressed\n", (char)screen_val);
fflush(stdout);
switch (screen_val) {
case KEYCODE_I:
// Display the email layout with "Send" enter key
virtualkeyboard_change_options(VIRTUALKEYBOARD_LAYOUT_EMAIL, VIRTUALKEYBOARD_ENTER_SEND);
break;
case KEYCODE_O:
// Display the phone layout with "Connect" enter key
virtualkeyboard_change_options(VIRTUALKEYBOARD_LAYOUT_PHONE, VIRTUALKEYBOARD_ENTER_CONNECT);
break;
case KEYCODE_P:
// Display the default layout with default enter key
virtualkeyboard_change_options(VIRTUALKEYBOARD_LAYOUT_DEFAULT, VIRTUALKEYBOARD_ENTER_DEFAULT);
break;
case KEYCODE_H:
// Hide the keyboard
virtualkeyboard_hide();
break;
case KEYCODE_A:
// Increment rotation angle
angle = fmod(angle + ANGLE_INCREMENT, CIRCLE_DEGREES );
break;
case KEYCODE_Z:
// Decrement rotation angle
angle = fmod(angle - ANGLE_INCREMENT, CIRCLE_DEGREES );
break;
default:
break;
}
}
break;
}
}
int initialize() {
//Initialize vertex and color data
vertices[0] = -0.25f;
vertices[1] = -0.25f;
vertices[2] = 0.25f;
vertices[3] = -0.25f;
vertices[4] = -0.25f;
vertices[5] = 0.25f;
vertices[6] = 0.25f;
vertices[7] = 0.25f;
colors[0] = 1.0f;
colors[1] = 0.0f;
colors[2] = 1.0f;
colors[3] = 1.0f;
colors[4] = 1.0f;
colors[5] = 1.0f;
colors[6] = 0.0f;
colors[7] = 1.0f;
colors[8] = 0.0f;
colors[9] = 1.0f;
colors[10] = 1.0f;
colors[11] = 1.0f;
colors[12] = 0.0f;
colors[13] = 1.0f;
colors[14] = 1.0f;
colors[15] = 1.0f;
//Query width and height of the window surface created by utility code
EGLint surface_width, surface_height;
eglQuerySurface(egl_disp, egl_surf, EGL_WIDTH, &surface_width);
eglQuerySurface(egl_disp, egl_surf, EGL_HEIGHT, &surface_height);
EGLint err = eglGetError();
if (err != 0x3000) {
fprintf(stderr, "Unable to query EGL surface dimensions\n");
return EXIT_FAILURE;
}
glShadeModel(GL_SMOOTH);
//set clear color to white
glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
glViewport(0, 0, surface_width, surface_height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrthof(0.0f, (float) (surface_width) / (float) (surface_height), 0.0f,
1.0f, -1.0f, 1.0f);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glTranslatef((float) (surface_width) / (float) (surface_height) / 2, 0.5f,
0.0f);
return EXIT_SUCCESS;
}
void render()
{
//Typical render pass
glClear(GL_COLOR_BUFFER_BIT);
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(2, GL_FLOAT, 0, vertices);
glEnableClientState(GL_COLOR_ARRAY);
glColorPointer(4, GL_FLOAT, 0, colors);
glRotatef(angle, 0.0f, 1.0f, 0.0f);
glDrawArrays(GL_TRIANGLE_STRIP, 0 , 4);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
//Use utility code to update the screen
bbutil_swap();
}
int main(int argc, char *argv[])
{
int rc;
int exit_application = 0;
screen_context_t screen_cxt;
//Create a screen context that will be used to create an EGL surface to to receive libscreen events
screen_create_context(&screen_cxt,0);
//Initialize BPS library
bps_initialize();
//Use utility code to initialize EGL for 2D rendering with GL ES 1.1
if (EXIT_SUCCESS != bbutil_init_egl(screen_cxt)) {
bbutil_terminate();
screen_destroy_context(screen_cxt);
return 0;
}
//Initialize application logic
if (EXIT_SUCCESS != initialize()) {
fprintf(stderr, "initialize failed\n");
bbutil_terminate();
screen_destroy_context(screen_cxt);
return 0;
}
//Signal BPS library that navigator, screen, and keyboard events will be requested
if (BPS_SUCCESS != screen_request_events(screen_cxt)) {
fprintf(stderr, "screen_request_events failed\n");
bbutil_terminate();
screen_destroy_context(screen_cxt);
return 0;
}
if (BPS_SUCCESS != navigator_request_events(0)) {
fprintf(stderr, "navigator_request_events failed\n");
bbutil_terminate();
screen_destroy_context(screen_cxt);
return 0;
}
if (BPS_SUCCESS != virtualkeyboard_request_events(0)) {
fprintf(stderr, "navigator_request_events failed\n");
bbutil_terminate();
screen_destroy_context(screen_cxt);
return 0;
}
//Signal BPS library that navigator orientation is not to be locked
if (BPS_SUCCESS != navigator_rotation_lock(false)) {
fprintf(stderr, "navigator_rotation_lock failed\n");
bbutil_terminate();
screen_destroy_context(screen_cxt);
return 0;
}
virtualkeyboard_show();
while (!exit_application) {
//Request and process all available BPS events
bps_event_t *event = NULL;
for(;;) {
rc = bps_get_event(&event, 0);
assert(rc == BPS_SUCCESS);
if (event) {
int domain = bps_event_get_domain(event);
if (domain == screen_get_domain()) {
handleScreenEvent(event);
} else if ((domain == navigator_get_domain())
&& (NAVIGATOR_EXIT == bps_event_get_code(event))) {
exit_application = 1;
}
} else {
break;
}
}
render();
}
//Stop requesting events from libscreen
screen_stop_events(screen_cxt);
//Shut down BPS library for this process
bps_shutdown();
//Use utility code to terminate EGL setup
bbutil_terminate();
//Destroy libscreen context
screen_destroy_context(screen_cxt);
return 0;
}