void main(void) {
int gd = CUSTOM, gm = CUSTOM_MODE(1024,768);
int page = 0;
g_mousestate curState;
g_mousestate oldState;
int scrolling = 0;
initgraph(&gd, &gm, "");
initParticles(particles);
while(!anykeypressed()) {
getmousestate(&curState);
if((curState.buttons & MOUSE_LEFTBUTTON) == 0) {
scrolling = 0;
} else {
if(scrolling == 0) {
scrolling = 1;
getmousestate(&oldState);
} else {
orgX -= -curState.x + oldState.x;
orgY += -curState.y + oldState.y;
oldState = curState;
}
}
updateParticles(particles, particles2);
setactivepage(1 - page);
clearviewport();
drawParticles(particles);
setvisualpage(1 - page);
page = 1 - page;
delay(4);
}
closegraph();
}
void _app_handle_input( void ) {
int i;
g_mousestate state;
getmousestate( &state );
if ( state.buttons == 0 && mouse_prev_state == 0 ) { // hover ( no click )
mouse_prev_state = 0;
mouse_prev_x = state.x;
mouse_prev_y = state.y;
} else if ( state.buttons == 1 && mouse_prev_state == 0 ) { // on mouse down ( left clicked )
int done = false;
mouse_prev_state = 1;
if ( !done ) {
for ( i = 0; i < NUM_MENU; i++ ) {
if ( state.x > menu_panels[ i ].rect.x0 && state.x < menu_panels[ i ].rect.x1
&& state.y > menu_panels[ i ].rect.y0 && state.y < menu_panels[ i ].rect.y1 ) {
if ( i == 0 ) { // Special case for cartesian ( it's independent from others )
menu_panels[ i ].focus += 1;
menu_panels[ i ].focus %= 2;
} else if ( i == 6 ) { // Special case too for color pallete
for ( i = 0; i < 16; i++ ) {
if ( i < 8 ) {
if ( state.x > 384 + 32 * i && state.x < 384 + 32 * ( i + 1 ) && state.y > 0 && state.y < 16 ) {
chosen_color = i;
done = true;
}
} else {
if ( state.x > 384 + 32 * ( i - 8 ) && state.x < 384 + 32 * ( i + 1 - 8 ) && state.y > 16 && state.y < 32 ) {
chosen_color = i;
done = true;
}
}
}
} else {
menu_focus = i;
}
done = true;
}
}
}
if ( !done ) {
for ( i = 0; i < NUM_SIDE; i++ ) {
if ( state.x > side_panels[ i ].rect.x0 && state.x < side_panels[ i ].rect.x1
&& state.y > side_panels[ i ].rect.y0 && state.y < side_panels[ i ].rect.y1 ) {
side_focus = i;
done = true;
}
}
}
if ( !done ) {
if ( side_focus == 0 ) { // SELECT
} else if ( side_focus == 1 ) { // LINE
drawing_prepare_line( state.x, state.y, chosen_color );
} else if ( side_focus == 2 ) { // CURVE
//drawing_prepare_curve( state.x, state.y, chosen_color );
} else if ( side_focus == 3 ) { // ELLIPSE
drawing_prepare_ellipse( state.x, state.y, chosen_color );
} else if ( side_focus == 4 ) { // POLYGON
drawing_prepare_polygon( state.x, state.y, chosen_color );
} else if ( side_focus == 5 ) { // FILL
canvas_fill( state.x, state.y, chosen_color, getpixel( state.x, state.y ) );
} else if ( side_focus == 6 ) { // CROP
}
}
mouse_prev_x = state.x;
mouse_prev_y = state.y;
} else if ( state.buttons == 1 && mouse_prev_state == 1 ) { // on mouse move ( left pressed )
mouse_prev_state = 1;
if ( side_focus == 0 ) { // SELECT
} else if ( side_focus == 1 ) { // LINE
drawing_process_line( state.x, state.y );
} else if ( side_focus == 2 ) { // CURVE
//drawing_process_curve (state.x, state.y);
} else if ( side_focus == 3 ) { // ELLIPSE
drawing_process_ellipse( state.x, state.y );
} else if ( side_focus == 4 ) { // POLYGON
drawing_process_polygon( state.x, state.y );
} else if ( side_focus == 5 ) { // FILL
} else if ( side_focus == 6 ) { // CROP
}
mouse_prev_x = state.x;
mouse_prev_y = state.y;
} else if ( state.buttons == 0 && mouse_prev_state == 1 ) { // on mouse up ( left released )
mouse_prev_state = 0;
if ( side_focus == 0 ) { // SELECT
} else if ( side_focus == 1 ) { // LINE
drawing_finalize_line( state.x, state.y );
} else if ( side_focus == 2 ) { // CURVE
//drawing_finalize_curve( state.x, state.y );
} else if ( side_focus == 3 ) { // ELLIPSE
drawing_finalize_ellipse( state.x, state.y );
} else if ( side_focus == 4 ) { // POLYGON
drawing_finalize_polygon( state.x, state.y );
} else if ( side_focus == 5 ) { // FILL
} else if ( side_focus == 6 ) { // CROP
}
mouse_prev_x = state.x;
mouse_prev_y = state.y;
} else if ( state.buttons == 2 && mouse_prev_state == 0 ) { // on mouse down ( right clicked )
int done = false;
mouse_prev_state = 2;
if ( !done ) {
if ( menu_focus == 1 ) { // MOVE
if ( canvas_translate( state.x, state.y ) ) {
drawing_translate( state.x, state.y );
}
} else if ( menu_focus == 2 ) { // ROTATE
if ( !canvas_change_rotation_center( state.x, state.y ) ) {
int dx = state.x - mouse_prev_x;
int dy = state.y - mouse_prev_y;
if ( state.x < rx ) {
dy *= -1;
}
if ( canvas_rotate( dx, dy ) ) {
drawing_rotate( dx, dy );
}
}
} else if ( menu_focus == 3 ) { // SKEW
if ( !canvas_change_shearing_center( state.x, state.y ) ) {
int dx = state.x - mouse_prev_x;
int dy = state.y - mouse_prev_y;
if ( state.x < sx ) {
dy *= -1;
}
if ( state.y < sy ) {
dx *= -1;
}
if ( fabs( dx ) < fabs( dy ) ) {
if ( canvas_shear( 0, dy ) ) {
drawing_shear( 0, dy );
}
} else {
if ( canvas_shear( dx, 0 ) ) {
drawing_shear( dx, 0 );
}
}
}
} else if ( menu_focus == 4 ) { // ZOOM IN
// do nothing
} else if ( menu_focus == 5 ) { // ZOOM OUT
// do nothing
}
}
mouse_prev_x = state.x;
mouse_prev_y = state.y;
} else if ( state.buttons == 2 && mouse_prev_state == 2 ) { // on mouse move ( right pressed )
mouse_prev_state = 2;
if ( menu_focus == 1 ) { // MOVE
if ( canvas_translate( state.x, state.y ) ) {
drawing_translate( state.x, state.y );
}
} else if ( menu_focus == 2 ) { // ROTATE
if ( !canvas_change_rotation_center( state.x, state.y ) ) {
int dx = state.x - mouse_prev_x;
int dy = state.y - mouse_prev_y;
if ( state.x < rx ) {
dy *= -1;
}
if ( canvas_rotate( dx, dy ) ) {
drawing_rotate( dx, dy );
}
}
} else if ( menu_focus == 3 ) { // SKEW
if ( !canvas_change_shearing_center( state.x, state.y ) ) {
int dx = state.x - mouse_prev_x;
int dy = state.y - mouse_prev_y;
if ( state.x < sx ) {
dy *= -1;
}
if ( state.y < sy ) {
dx *= -1;
}
if ( fabs( dx ) < fabs( dy ) ) {
if ( canvas_shear( 0, dy ) ) {
drawing_shear( 0, dy );
}
} else {
if ( canvas_shear( dx, 0 ) ) {
drawing_shear( dx, 0 );
}
}
}
} else if ( menu_focus == 4 ) { // ZOOM IN
if ( canvas_zoom_in( state.x, state.y ) ) {
drawing_scale( state.x, state.y, DEFAULT_ZOOM_IN );
}
} else if ( menu_focus == 5 ) { // ZOOM OUT
if ( canvas_zoom_out( state.x, state.y ) ) {
drawing_scale( state.x, state.y, DEFAULT_ZOOM_OUT );
}
}
mouse_prev_x = state.x;
mouse_prev_y = state.y;
} else if ( state.buttons == 0 && mouse_prev_state == 2 ) { // on mouse up ( right released )
mouse_prev_state = 0;
if ( menu_focus == 1 ) { // MOVE
if ( canvas_translate( -1, -1 ) ) {
drawing_translate( -1, -1 );
}
} else if ( menu_focus == 2 ) { // ROTATE
if ( !canvas_change_rotation_center( 999, 999 ) ) {
if ( canvas_rotate( 999, 999 ) ) {
drawing_rotate( 999, 999 );
}
}
} else if ( menu_focus == 3 ) { // SKEW
if ( !canvas_change_shearing_center( 999, 999 ) ) {
if ( canvas_shear( 999, 999 ) ) {
drawing_shear( 999, 999 );
}
}
} else if ( menu_focus == 4 ) { // ZOOM IN
// do nothing
} else if ( menu_focus == 5 ) { // ZOOM OUT
// do nothing
}
mouse_prev_x = state.x;
mouse_prev_y = state.y;
} else if ( state.buttons == 3 ) { // both click ( not to be confused with double click )
// do nothing
}
return;
}
