/*
* ei_main --
*
* Main function of the application.
*/
int ei_main(int argc, char** argv)
{
ei_size_t screen_size = {900, 900};
ei_color_t root_bgcol = {0x52, 0x7f, 0xb4, 0xff};
ei_widget_t* frame;
ei_size_t frame_size = {300,300};
int frame_x = 0;
int frame_y = 0;
ei_color_t frame_color = {0x88, 0x88, 0x88, 0xff};
ei_relief_t frame_relief = ei_relief_raised;
int frame_border_width = 6;
char *text = "DALIDA";
/* Create the application and change the color of the background. */
ei_app_create(&screen_size, EI_FALSE);
ei_frame_configure(ei_app_root_widget(), NULL, &root_bgcol, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
const char* filename = "misc/petit_soleil.png";
ei_surface_t img = hw_image_load(filename,ei_app_root_surface());
ei_rect_t img_rect = hw_surface_get_rect(img);
ei_rect_t *img_rect_ptr = &img_rect;
/* Create, configure and place the frame on screen. */
for (int i = 1; i < 10; i++) {
frame = ei_widget_create("frame", ei_app_root_widget());
ei_frame_configure(frame, &frame_size, &frame_color,
&frame_border_width, &frame_relief, &text, NULL, NULL, (ei_anchor_t*)&i,
&img, &img_rect_ptr, (ei_anchor_t*)&i);
frame_x = (300 * (i-1)) % 900;
frame_y = ((i -1) / 3) * 300;
ei_place(frame, NULL, &frame_x, &frame_y, NULL, NULL, NULL, NULL, NULL, NULL );
}
ei_bind(ei_ev_keydown, NULL, "all", process_key, NULL);
/* Run the application's main loop. */
ei_app_run();
ei_unbind(ei_ev_keydown, NULL, "all", process_key, NULL);
/* We just exited from the main loop. Terminate the application (cleanup). */
ei_app_free();
return (EXIT_SUCCESS);
}
// Dessine l'image d'un widget
void ei_draw_widget_img( ei_surface_t surface,
ei_widget_t* widget,
ei_surface_t img,
ei_rect_t* img_rect,
ei_anchor_t anchor,
int button_border_width )
{
// Paramètres du widget
ei_point_t wtopleft = ei_point_add( widget->screen_location.top_left,
ei_point(2*button_border_width, 2*button_border_width) );
ei_size_t wsize = ei_size_sub( widget->screen_location.size,
ei_size(4*button_border_width, 4*button_border_width) );
// Variables à calculer
ei_rect_t dst_widget_rect;
ei_rect_t src_image_rect;
/***********************************************/
/* ETAPE 1 : CALCUL DE LA TAILLE DE DST ET SRC */
/***********************************************/
ei_size_t img_size;
if (img_rect != NULL) {
img_size = img_rect->size;
} else {
img_size = hw_surface_get_size(img);
}
// Calcul de la largeur de la zone de copie
if (img_size.width > wsize.width) {
src_image_rect.size.width = wsize.width;
dst_widget_rect.size.width = wsize.width;
} else {
src_image_rect.size.width = img_size.width;
dst_widget_rect.size.width = img_size.width;
}
// Calcul de la hauteur de la zone de copie
if (img_size.height > wsize.height) {
src_image_rect.size.height = wsize.height;
dst_widget_rect.size.height = wsize.height;
} else {
src_image_rect.size.height = img_size.height;
dst_widget_rect.size.height = img_size.height;
}
/*************************************/
/* ETAPE 2 : CALCUL DES DEUX TOPLEFT */
/*************************************/
// Calcul du topleft de la destination
ei_switch_anchor(anchor, &(dst_widget_rect.top_left),
dst_widget_rect.size, wtopleft, wsize);
// Calcul du topleft de la source
if (img_rect != NULL) {
src_image_rect.top_left = img_rect->top_left;
// fprintf(stderr, "x %i\n", img_rect->top_left.x);
// fprintf(stderr, "y %i\n", img_rect->top_left.y);
} else {
// Par défaut je prend le coin en haut à gauche de l'image
ei_rect_t rect_total = hw_surface_get_rect(img);
src_image_rect.top_left = rect_total.top_left;
}
/*************************************************************/
/* ETAPE 2bis : RECALCUL SI SORTIE DU CADRE PRINCIPAL (ROOT) */
/*************************************************************/
ei_surface_t display_surface = ei_app_root_surface();
ei_rect_t display_rect = hw_surface_get_rect(display_surface);
int cut;
// Cas 1 : sortie à gauche
cut = display_rect.top_left.x - dst_widget_rect.top_left.x;
if ( cut > 0 ) {
// Changement de DST
dst_widget_rect.top_left.x = display_rect.top_left.x;
dst_widget_rect.size.width = dst_widget_rect.size.width - cut;
// Changement de SRC
src_image_rect.top_left.x = src_image_rect.top_left.x + cut;
src_image_rect.size = dst_widget_rect.size;
}
// Cas 2 : sortie à droite
cut = dst_widget_rect.top_left.x + dst_widget_rect.size.width
- display_rect.top_left.x - display_rect.size.width;
if ( cut > 0 ) {
// Changement de DST
dst_widget_rect.size.width = dst_widget_rect.size.width - cut;
// Changement de SRC
src_image_rect.size = dst_widget_rect.size;
}
// Cas 3 : sortie en haut
cut = display_rect.top_left.y - dst_widget_rect.top_left.y;
if ( cut > 0 ) {
// Changement de DST
dst_widget_rect.top_left.y = display_rect.top_left.y;
dst_widget_rect.size.height = dst_widget_rect.size.height - cut;
// Changement de SRC
src_image_rect.top_left.y = src_image_rect.top_left.y + cut;
src_image_rect.size = dst_widget_rect.size;
}
// Cas 4 : sortie en bas
cut = dst_widget_rect.top_left.y + dst_widget_rect.size.height
- display_rect.top_left.y - display_rect.size.height;
if ( cut > 0 ) {
// Changement de DST
dst_widget_rect.size.height = dst_widget_rect.size.height - cut;
// Changement de SRC
src_image_rect.size = dst_widget_rect.size;
}
/*****************************************/
/* ETAPE 3 : COPIE DE L'IMAGE A AFFICHEE */
/*****************************************/
hw_surface_lock(img);
ei_copy_surface(surface, &dst_widget_rect, img, &src_image_rect, EI_FALSE);
hw_surface_unlock(img);
}