/***************************************************************************** Copyright (C) 1994,1997 Ivan A. Curtis. All rights reserved. This code must not be re-distributed without these copyright notices intact. ******************************************************************************* ******************************************************************************* Filename: ~icurtis/src/mx/alert.c Description: Update History: (most recent first) I. Curtis 9-Apr-97 12:02 -- Updated I. Curtis 22-Mar-94 23:11 -- Created. ******************************************************************************/ #include #include "basic.h" #include "alert.h" /******************************************** * Handle an event for an alert * * Exposure events always cause a re-draw. * * Enter/Leave events are only processed if * * alert->inside is non-negative * * Button Press/Release events are only * * processed if alert->momentary is * * TRUE * ********************************************/ int mx_alert_event(Display *display, int screen, XEvent *event, mx_alert *alert, int *done, int *x, int *y) { switch(event->type) { case Expose: if (event->xexpose.window == alert->window) { mx_items_draw(display, alert->window, alert->app, alert->item, alert->start_item, alert->max_items, alert->width, alert->height, 0, 0); return True; } break; case ButtonRelease: if (event->xbutton.window == alert->window) { if (alert->momentary == 1) { *x = event->xbutton.x_root; *y = event->xbutton.y_root; *done = 1; } return True; } break; case ButtonPress: if (event->xbutton.window == alert->window) { if (alert->momentary == 0) { *x = event->xbutton.x_root; *y = event->xbutton.y_root; *done = 1; } return True; } break; case LeaveNotify: if (event->xcrossing.window == alert->window) { if (alert->inside == 1) { XFillRectangle(display, alert->window, alert->app->gcf, 0, 0, alert->width, alert->height); alert->inside = 0; } return True; } break; case EnterNotify: if (event->xcrossing.window == alert->window) { if (alert->inside == 0) { XFillRectangle(display, alert->window, alert->app->gcf, 0, 0, alert->width, alert->height); alert->inside = 1; } return True; } break; default: break; } return False; } /***************************************************************************** * Pop up an alert on the root window * * at position x, y * *****************************************************************************/ int mx_popup_alert(Display *display, int screen, mx_panel *main_panel, mx_panel *resp_panel, int *x, int *y) { XEvent event; mx_alert title, body, *button; int bod_height, n_buttons, b, b_xofs, b_yofs, b_dx; int choice, done; button = NULL; b_xofs = b_yofs = b_dx = 0; if (!main_panel) return -1; title.app = main_panel->app; title.width = main_panel->width + 2 * main_panel->app->item_border; title.height = main_panel->app->ascent + main_panel->app->descent + 2 * main_panel->app->item_border; title.start_item = 0; title.max_items = 1; title.item = main_panel->item + main_panel->first_item; body.app = main_panel->app; body.width = main_panel->width + 2 * main_panel->app->item_border; body.height = main_panel->app->ascent + main_panel->app->descent + 2 * main_panel->app->item_border; body.start_item = 0; body.max_items = main_panel->last_item - main_panel->first_item; body.item = main_panel->item + main_panel->first_item + 1; bod_height = body.max_items * body.height; if (resp_panel) { bod_height = (body.max_items + 2) * body.height; n_buttons = resp_panel->last_item - resp_panel->first_item + 1; b_yofs = title.height + title.app->win_border + body.max_items * body.height + body.height / 2; b_xofs = body.height / 2; b_dx = body.width - body.height - (resp_panel->width + resp_panel->app->item_border * 2 + resp_panel->app->win_border * 2); if (n_buttons > 2) b_dx = b_dx / (n_buttons - 1); button = (mx_alert *)malloc(sizeof(mx_alert) * n_buttons); for (b = 0; b < n_buttons; b++) { button[b].app = resp_panel->app; button[b].width = resp_panel->width + 2 * resp_panel->app->item_border; button[b].height = resp_panel->app->ascent + resp_panel->app->descent + 2 * resp_panel->app->item_border; button[b].start_item = 0; button[b].max_items = 1; button[b].item = resp_panel->item + resp_panel->first_item + b; } } else { bod_height = body.max_items * body.height; n_buttons = 0; } mx_adjust_xy(display, title.width + 2 * title.app->win_border, (title.height * (body.max_items + 1) + 3 * title.app->win_border), x, y); /* open the alert window */ title.window = mx_transient_window_open(display, screen, title.app->win_border, *x, *y, title.width, title.height * title.max_items); XSelectInput(display, title.window, ExposureMask | OwnerGrabButtonMask | ButtonPressMask | ButtonReleaseMask | EnterWindowMask | LeaveWindowMask); title.inside = -1; if (resp_panel) title.momentary = -1; else title.momentary = 0; body.window = mx_transient_window_open(display, screen, body.app->win_border, *x, *y + title.height + title.app->win_border, body.width, bod_height); XSelectInput(display, body.window, ExposureMask | OwnerGrabButtonMask | ButtonPressMask | ButtonReleaseMask | EnterWindowMask | LeaveWindowMask); body.inside = -1; if (resp_panel) body.momentary = -1; else body.momentary = 0; for (b = 0; b < n_buttons; b++) { button[b].window = mx_transient_window_open(display, screen, button[b].app->win_border, *x + b_xofs + b_dx * b, *y + b_yofs, button[b].width, button[b].height); XSelectInput(display, button[b].window, ExposureMask | OwnerGrabButtonMask | ButtonPressMask | ButtonReleaseMask | EnterWindowMask | LeaveWindowMask); button[b].inside = 0; button[b].momentary = 0; } done = 0; choice = -1; while (!done) { XNextEvent(display, &event); if (mx_alert_event(display, screen, &event, &title, &done, x, y)) continue; if (mx_alert_event(display, screen, &event, &body, &done, x, y)) continue; for (b = 0; b < n_buttons; b++) { if (mx_alert_event(display, screen, &event, button + b, &done, x, y)) { if (done) choice = b; break; } } if (event.type == Expose && title.app->expose_fun) { if ((*(title.app->expose_fun))(&event)) continue; } /* * if (event.type == ButtonRelease){ * *x = event.xbutton.x_root; * *y = event.xbutton.y_root; * done = 1; * choice = -1; * } */ } mx_window_close(display, title.window); mx_window_close(display, body.window); for (b = 0; b < n_buttons; b++) { mx_window_close(display, button[b].window); } free(button); return choice; }