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spOSMroute/gui/gui_button.c

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3.0 KiB

/* $Id: gui_button.c,v 1.7 2013/03/06 23:27:25 steffen Exp $ */
/***************************************************************************
* gui_button.c
*
* Copyright (C) 2013 Steffen Pohle
* steffen@gulpe.de
***************************************************************************
* basic windows functions
***************************************************************************/
/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* main.c is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "osmroute.h"
#include "draw.h"
#include "gui.h"
#include "system.h"
/****************************************************************************
* button
*/
void gui_button_draw (GUIItem *item) {
struct line_style ls;
GUIButton *button = NULL;
if (item == NULL || item->type != GUI_BUTTON) {
d_printf ("GUIButton %p not type GUIButton", item);
errorexit (-1);
}
button = (GUIButton *) item->data;
ls.width = 1.0;
ls.c = ls.borderc = color[COLOR_white][3];
// d_printf ("gui_button_draw \"%s\" %d,%d,%d,%d", button->caption, item->x, item->y, item->w, item->h);
draw_polygonstart ();
draw_polygonadd (item->x, item->y);
draw_polygonadd (item->x, item->y + item->h);
draw_polygonadd (item->x + item->w, item->y + item->h);
draw_polygonadd (item->x + item->w, item->y);
draw_polygonfinish (currentwin->screen, ls, *button->col, 1);
gfx_draw_text (currentwin->screen, item->x + 2, item->y + 2, button->caption, button->textcol);
};
GUIItem *gui_button_new (char *caption, int x, int y, int w, int h) {
GUIItem *item = (GUIItem*) ml_malloc (sizeof (GUIItem) + sizeof (GUIButton) + POINTERALIGNMENT);
GUIButton *button = (GUIButton *) item->data;
memset (item, 0x0, sizeof (GUIItem) + sizeof (GUIButton) + POINTERALIGNMENT);
if (caption == NULL) button->caption[0] = 0;
else strncpy (button->caption, caption, GUI_TEXTLEN);
item->x = x;
item->y = y;
item->w = w;
item->h = h;
item->type = GUI_BUTTON;
button->col = &color[COLOR_white][1];
button->textcol = &color[COLOR_white][3];
button->callback_clicked = NULL;
button->func_draw = NULL;
return item;
};
void gui_button_event (GUIItem *item, GUIEvent *event) {
GUIButton *button = NULL;
if (item == NULL || item->type != GUI_BUTTON) {
d_printf ("GUIButton %p not type GUIButton", item);
errorexit (-1);
}
button = (GUIButton *) item->data;
if (button->callback_clicked != NULL && event->event == EGUI_MOUSEPRESSED) {
gui_set_focus (item);
button->callback_clicked (event->mousepos.x-item->x, event->mousepos.y-item->y);
}
};