rxvt-unicode/src/graphics.C

/*--------------------------------*-C-*---------------------------------*
 * File:        graphics.c
 *----------------------------------------------------------------------*
 * $Id: graphics.C,v 1.4 2003/12/18 02:07:12 pcg Exp $
 *
 * All portions of code are copyright by their respective author/s.
 * Copyright (c) 1994      Rob Nation <nation@rocket.sanders.lockheed.com>
 *                              - original version
 * Copyright (c) 1997      Raul Garcia Garcia <rgg@tid.es>
 * Copyright (c) 1997,1998 mj olesen <olesen@me.queensu.ca>
 *
 * 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 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *----------------------------------------------------------------------*/

#include "../config.h"          /* NECESSARY */
#ifdef RXVT_GRAPHICS
#include "rxvt.h"               /* NECESSARY */
#include "rxvtgrx.h"

typedef struct grcmd_t {
    char            cmd;
    short           color;
    short           ncoords;
    int            *coords;
    unsigned char  *text;
    struct grcmd_t *next;
} grcmd_t;

typedef struct grwin_t {
    Window          win;
    int             x, y;
    unsigned int    w, h;
    short           screen;
    grcmd_t        *graphics;
    struct grwin_t *prev, *next;
} grwin_t;

#include "graphics.intpro"      /* PROTOS for internal routines */
#include <X11/cursorfont.h>

/* commands:
 * 'C' = Clear
 * 'F' = Fill
 * 'G' = Geometry
 * 'L' = Line
 * 'P' = Points
 * 'T' = Text
 * 'W' = Window
 */

#ifndef GRX_SCALE
# define GRX_SCALE      10000
#endif

/*----------------------------------------------------------------------*
 * local functions
 */
/* ARGSUSED */
/* INTPROTO */
void
rxvt_Gr_NewWindow(pR_ int nargs, int args[])
{
    int             x, y;
    unsigned int    w, h;
    Window          win;
    grwin_t        *grwin;
    Cursor          cursor;

    if (nargs != 4) {
        rxvt_print_error("NewWindow: 4 args needed, got %d\n", nargs);
        return;
    }
    x = args[0] * TermWin_TotalWidth() / GRX_SCALE;
    y = args[1] * TermWin_TotalHeight() / GRX_SCALE;
    w = args[2] * TermWin_TotalWidth() / GRX_SCALE;
    h = args[3] * TermWin_TotalHeight() / GRX_SCALE;

    win = XCreateSimpleWindow(R->Xdisplay, R->TermWin.vt,
                              x, y, w, h,
                              0,
                              R->PixColors[Color_fg],
                              R->PixColors[Color_bg]);

    cursor = XCreateFontCursor(R->Xdisplay, XC_crosshair);
    XDefineCursor(R->Xdisplay, win, cursor);
    XMapWindow(R->Xdisplay, win);
    XSelectInput(R->Xdisplay, win, ExposureMask);

    grwin = (grwin_t *) rxvt_malloc(sizeof(grwin_t));
    grwin->win = win;
    grwin->x = x;
    grwin->y = y;
    grwin->w = w;
    grwin->h = h;
    grwin->screen = 0;
    grwin->prev = NULL;
    grwin->next = R->gr_root;
    if (grwin->next)
        grwin->next->prev = grwin;
    R->gr_root = grwin;
    grwin->graphics = NULL;
    R->graphics_up++;

    R->tt_printf("\033W%ld\n", (long)grwin->win);
}

/* ARGSUSED */
/* INTPROTO */
void
rxvt_Gr_ClearWindow(pR_ grwin_t *grwin)
{
    grcmd_t        *cmd, *next;

    for (cmd = grwin->graphics; cmd != NULL; cmd = next) {
        next = cmd->next;
        free(cmd->coords);
        if (cmd->text != NULL)
            free(cmd->text);
        free(cmd);
    }
    grwin->graphics = NULL;
    XClearWindow(R->Xdisplay, grwin->win);
}

/*
 * arg [0] = x
 * arg [1] = y
 * arg [2] = alignment
 * arg [3] = strlen (text)
 */
/* ARGSUSED */
/* INTPROTO */
void
rxvt_Gr_Text(pR_ grwin_t *grwin, grcmd_t *data)
{
    int             x, y, align;

    if (data->ncoords < 4 || data->text == NULL || *(data->text) == '\0')
        return;

    x = data->coords[0] * grwin->w / GRX_SCALE;
    y = data->coords[1] * grwin->h / GRX_SCALE;
    align = data->coords[2];

    if ((align & HORIZONTAL_ALIGNMENT) == RIGHT_TEXT)
        x -= XTextWidth(R->TermWin.font, data->text, data->coords[3]);
    else if ((align & HORIZONTAL_ALIGNMENT) == HCENTER_TEXT)
        x -= (XTextWidth(R->TermWin.font, data->text, data->coords[3]) >> 1);

    if ((align & VERTICAL_ALIGNMENT) == TOP_TEXT)
        y += R->TermWin.font->ascent;
    else if ((align & VERTICAL_ALIGNMENT) == BOTTOM_TEXT)
        y -= R->TermWin.font->descent;

    if ((align & VERTICAL_ALIGNMENT) == VCENTER_TEXT)
        y -= R->TermWin.font->descent
             + ((R->TermWin.font->ascent + R->TermWin.font->descent) >> 1);
    if ((align & VERTICAL_ALIGNMENT) == VCAPS_CENTER_TEXT)
        y += (R->TermWin.font->ascent >> 1);

    XPMClearArea(R->Xdisplay, grwin->win, x, y - R->TermWin.font->ascent,
                 Width2Pixel(data->coords[3]), Height2Pixel(1), 0);
    XDrawString(R->Xdisplay, grwin->win, R->TermWin.gc, x, y,
                data->text, data->coords[3]);
}

/* ARGSUSED */
/* INTPROTO */
void
rxvt_Gr_Geometry(pR_ grwin_t *grwin, grcmd_t *data __attribute__((unused)))
{
    if (grwin)
        rxvt_tt_printf(aR_ "\033G%ld %d %d %u %u %d %d %ld %ld %d\n",
                  (long)grwin->win,
                  grwin->x, grwin->y, grwin->w, grwin->h,
                  R->TermWin.fwidth,
                  R->TermWin.fheight,
                  (long)GRX_SCALE * R->TermWin.fwidth / grwin->w,
                  (long)GRX_SCALE * R->TermWin.fheight / grwin->h,
                  XDEPTH);
    else                        /* rxvt terminal window size */
        rxvt_tt_printf(aR_ "\033G0 0 0 %d %d %d %d %ld %ld %d\n",
                  TermWin_TotalWidth(), TermWin_TotalHeight(),
                  R->TermWin.fwidth, R->TermWin.fheight,
                  (long)GRX_SCALE * R->TermWin.fwidth / R->TermWin.width,
                  (long)GRX_SCALE * R->TermWin.fheight / R->TermWin.height,
                  XDEPTH);
}

/* ARGSUSED */
/* INTPROTO */
void
rxvt_Gr_DestroyWindow(pR_ grwin_t *grwin)
{
    grcmd_t        *cmd, *next;

    if (grwin == NULL)
        return;

    for (cmd = grwin->graphics; cmd; cmd = next) {
        next = cmd->next;
        free(cmd->coords);
        if (cmd->text != NULL)
            free(cmd->text);
        free(cmd);
    }

    XDestroyWindow(R->Xdisplay, grwin->win);
    if (grwin->next != NULL)
        grwin->next->prev = grwin->prev;
    if (grwin->prev != NULL)
        grwin->prev->next = grwin->next;
    else
        R->gr_root = grwin->next;
    free(grwin);

    R->graphics_up--;
}

/* ARGSUSED */
/* INTPROTO */
void
rxvt_Gr_Dispatch(pR_ grwin_t *grwin, grcmd_t *data)
{
    int             i, n;
    union {
        XPoint          pt[NGRX_PTS / 2];
        XRectangle      rect[NGRX_PTS / 4];
    } xdata;

    if (data->color != Color_fg) {
        XGCValues       gcv;

        gcv.foreground = R->PixColors[data->color];
        XChangeGC(R->Xdisplay, R->TermWin.gc, GCForeground, &gcv);
    }
    if (grwin)
        switch (data->cmd) {
        case 'L':
            if (data->ncoords > 3) {
                for (n = i = 0; i < data->ncoords; i += 2, n++) {
                    xdata.pt[n].x = data->coords[i] * grwin->w / GRX_SCALE;
                    xdata.pt[n].y = data->coords[i + 1] * grwin->h / GRX_SCALE;
                }
                XDrawLines(R->Xdisplay,
                       grwin->win, R->TermWin.gc, xdata.pt, n, CoordModeOrigin);
            }
            break;

        case 'P':
            if (data->ncoords > 3) {
                for (n = i = 0; i < data->ncoords; i += 2, n++) {
                    xdata.pt[n].x = data->coords[i] * grwin->w / GRX_SCALE;
                    xdata.pt[n].y = data->coords[i + 1] * grwin->h / GRX_SCALE;
                }
                XDrawPoints(R->Xdisplay,
                       grwin->win, R->TermWin.gc, xdata.pt, n, CoordModeOrigin);
            }
            break;

        case 'F':
            if (data->ncoords > 0) {
                for (n = i = 0; i < data->ncoords; i += 4, n++) {
                    xdata.rect[n].x = data->coords[i] * grwin->w / GRX_SCALE;
                    xdata.rect[n].y = data->coords[i + 1] * grwin->h
                                      / GRX_SCALE;
                    xdata.rect[n].width = ((data->coords[i + 2]
                                            - data->coords[i] + 1) *
                                           grwin->w / GRX_SCALE);
                    xdata.rect[n].height = ((data->coords[i + 3]
                                             - data->coords[i + 1] + 1) *
                                            grwin->h / GRX_SCALE);
                    XPMClearArea(R->Xdisplay, grwin->win,
                                 xdata.rect[n].x, xdata.rect[n].y,
                                 xdata.rect[n].width, xdata.rect[n].height,
                                 0);
                }
                XFillRectangles(R->Xdisplay, grwin->win, R->TermWin.gc, xdata.rect,
                                n);
            }
            break;
        case 'T':
            rxvt_Gr_Text(aR_ grwin, data);
            break;
        case 'C':
            rxvt_Gr_ClearWindow(aR_ grwin);
            break;
        }
    if (data->color != Color_fg) {
        XGCValues       gcv;

        gcv.foreground = R->PixColors[Color_fg];
        XChangeGC(R->Xdisplay, R->TermWin.gc, GCForeground, &gcv);
    }
}

/* ARGSUSED */
/* INTPROTO */
void
rxvt_Gr_Redraw(pR_ grwin_t *grwin)
{
    grcmd_t        *cmd;

    for (cmd = grwin->graphics; cmd != NULL; cmd = cmd->next)
        rxvt_Gr_Dispatch(aR_ grwin, cmd);
}

/*----------------------------------------------------------------------*
 * end of static functions
 */
/* ARGSUSED */
/* EXTPROTO */
void
rxvt_Gr_ButtonReport(pR_ int but, int x, int y)
{
    grwin_t        *grwin;

    for (grwin = R->gr_root; grwin != NULL; grwin = grwin->next)
        if ((x > grwin->x)
            && (y > grwin->y)
            && ((unsigned int)x < grwin->x + grwin->w)
            && ((unsigned int)y < grwin->y + grwin->h))
            break;

    if (grwin == NULL)
        return;

    x = GRX_SCALE * (x - grwin->x) / grwin->w;
    y = GRX_SCALE * (y - grwin->y) / grwin->h;
    rxvt_tt_printf(aR_ "\033%c%ld;%d;%d;\n", but, (long)grwin->win, x, y);
}

/* ARGSUSED */
/* EXTPROTO */
void
rxvt_Gr_do_graphics(pR_ int cmd, unsigned int nargs, int args[], unsigned char *text)
{
    int             i;
    Window          win_id;
    grwin_t        *grwin;
    grcmd_t        *newcmd, *oldcmd;

    if (cmd == 'W') {
        rxvt_Gr_NewWindow(aR_ nargs, args);
        return;
    }
    win_id = (nargs > 0) ? (Window) args[0] : None;

    if ((cmd == 'G') && (win_id == None)) {
        rxvt_Gr_Geometry(aR_ NULL, NULL);
        return;
    }
    if ((win_id == None) && (R->gr_last_id != None))
        win_id = R->gr_last_id;

    if (win_id == None)
        return;

    grwin = R->gr_root;
    while ((grwin != NULL) && (grwin->win != win_id))
        grwin = grwin->next;

    if (grwin == NULL)
        return;

    if (cmd == 'G') {
        rxvt_Gr_Geometry(aR_ grwin, NULL);
        return;
    }
    nargs--;
    args++;                     /* skip over window id */

/* record this new command */
    newcmd = (grcmd_t *) rxvt_malloc(sizeof(grcmd_t));
    newcmd->ncoords = nargs;
    newcmd->coords = (int *)rxvt_malloc((newcmd->ncoords * sizeof(int)));

    newcmd->next = NULL;
    newcmd->cmd = cmd;
    newcmd->color = rxvt_scr_get_fgcolor(aR);
    newcmd->text = text;

    for (i = 0; i < newcmd->ncoords; i++)
        newcmd->coords[i] = args[i];

/*
 * If newcmd == fill, and rectangle is full window, drop all prior
 * commands.
 */
    if ((newcmd->cmd == 'F') && (grwin) && (grwin->graphics)) {
        for (i = 0; i < newcmd->ncoords; i += 4) {
            if ((newcmd->coords[i] == 0)
                && (newcmd->coords[i + 1] == 0)
                && (newcmd->coords[i + 2] == GRX_SCALE)
                && (newcmd->coords[i + 3] == GRX_SCALE)) {
            /* drop previous commands */
                oldcmd = grwin->graphics;
                while (oldcmd->next != NULL) {
                    grcmd_t        *tmp = oldcmd;

                    oldcmd = oldcmd->next;
                    free(tmp);
                }
                grwin->graphics = NULL;
            }
        }
    }
/* insert new command into command list */
    oldcmd = grwin->graphics;
    if (oldcmd == NULL)
        grwin->graphics = newcmd;
    else {
        while (oldcmd->next != NULL)
            oldcmd = oldcmd->next;
        oldcmd->next = newcmd;
    }
    rxvt_Gr_Dispatch(aR_ grwin, newcmd);
}

/* ARGSUSED */
/* EXTPROTO */
void
rxvt_Gr_scroll(pR_ int count)
{
    grwin_t        *grwin, *next;

    if ((count == 0) && (R->gr_prev_start == R->TermWin.view_start))
        return;

    R->gr_prev_start = R->TermWin.view_start;

    for (grwin = R->gr_root; grwin != NULL; grwin = next) {
        next = grwin->next;
        grwin->y -= (count * R->TermWin.fheight);
        if ((long)(grwin->y + grwin->h)
            < -(long)(R->TermWin.saveLines * R->TermWin.fheight))
            rxvt_Gr_DestroyWindow(aR_ grwin);
        else
            XMoveWindow(R->Xdisplay, grwin->win,
                        grwin->x,
                        grwin->y + (R->TermWin.view_start * R->TermWin.fheight));
    }
}

/* EXTPROTO */
void
rxvt_Gr_ClearScreen(pR)
{
    grwin_t        *grwin, *next;

    for (grwin = R->gr_root; grwin != NULL; grwin = next) {
        next = grwin->next;
        if ((grwin->screen == 0) && (grwin->y + grwin->h > 0)) {
            if (grwin->y >= 0)
                rxvt_Gr_DestroyWindow(aR_ grwin);
            else
                XResizeWindow(R->Xdisplay, grwin->win,
                              grwin->w, -grwin->y);
        }
    }
}

/* EXTPROTO */
void
rxvt_Gr_ChangeScreen(pR)
{
    grwin_t        *grwin, *next;

    for (grwin = R->gr_root; grwin != NULL; grwin = next) {
        next = grwin->next;
        if (grwin->y + grwin->h > 0) {
            if (grwin->screen == 1) {
                XMapWindow(R->Xdisplay, grwin->win);
                grwin->screen = 0;
            } else {
                XUnmapWindow(R->Xdisplay, grwin->win);
                grwin->screen = 1;
            }
        }
    }
}

/* ARGSUSED */
/* EXTPROTO */
void
rxvt_Gr_expose(pR_ Window win)
{
    grwin_t        *grwin;

    for (grwin = R->gr_root; grwin != NULL; grwin = grwin->next) {
        if (grwin->win == win) {
            rxvt_Gr_Redraw(aR_ grwin);
            break;
        }
    }
}

/* ARGSUSED */
/* EXTPROTO */
void
rxvt_Gr_Resize(pR_ int w __attribute__((unused)), int h)
{
    grwin_t        *grwin;

    for (grwin = R->gr_root; grwin != NULL; grwin = grwin->next) {
        if (R->TermWin.height != h) {
            grwin->y += (R->TermWin.height - h);
            XMoveWindow(R->Xdisplay, grwin->win,
                        grwin->x,
                        grwin->y + (R->TermWin.view_start * R->TermWin.fheight));
        }
        rxvt_Gr_Redraw(aR_ grwin);
    }
}

/* EXTPROTO */
void
rxvt_Gr_reset(pR)
{
    grwin_t        *grwin, *next;

    for (grwin = R->gr_root; grwin != NULL; grwin = next) {
        next = grwin->next;
        rxvt_Gr_DestroyWindow(aR_ grwin);
    }

    R->graphics_up = 0;
}

/* EXTPROTO */
int
rxvt_Gr_Displayed(pR)
{
    return R->graphics_up;
}
#endif
/*----------------------- end-of-file (C source) -----------------------*/
Revision:	1.5
Committed:	Wed Jan 28 23:48:04 2004 UTC (22 years, 8 months ago) by pcg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	HEAD
Changes since 1.4:	+1 -1 lines
State:	*FILE REMOVED*
Log Message:	* empty log message *
#	Content
1	/---------------------------------C----------------------------------
2	* File: graphics.c
3	----------------------------------------------------------------------
4	* $Id: graphics.C,v 1.4 2003/12/18 02:07:12 pcg Exp $
5	*
6	* All portions of code are copyright by their respective author/s.
7	* Copyright (c) 1994 Rob Nation <nation@rocket.sanders.lockheed.com>
8	* - original version
9	* Copyright (c) 1997 Raul Garcia Garcia <rgg@tid.es>
10	* Copyright (c) 1997,1998 mj olesen <olesen@me.queensu.ca>
11	*
12	* This program is free software; you can redistribute it and/or modify
13	* it under the terms of the GNU General Public License as published by
14	* the Free Software Foundation; either version 2 of the License, or
15	* (at your option) any later version.
16	*
17	* This program is distributed in the hope that it will be useful,
18	* but WITHOUT ANY WARRANTY; without even the implied warranty of
19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20	* GNU General Public License for more details.
21	*
22	* You should have received a copy of the GNU General Public License
23	* along with this program; if not, write to the Free Software
24	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25	----------------------------------------------------------------------/
26
27	#include "../config.h" /* NECESSARY */
28	#ifdef RXVT_GRAPHICS
29	#include "rxvt.h" /* NECESSARY */
30	#include "rxvtgrx.h"
31
32	typedef struct grcmd_t {
33	char cmd;
34	short color;
35	short ncoords;
36	int *coords;
37	unsigned char *text;
38	struct grcmd_t *next;
39	} grcmd_t;
40
41	typedef struct grwin_t {
42	Window win;
43	int x, y;
44	unsigned int w, h;
45	short screen;
46	grcmd_t *graphics;
47	struct grwin_t prev, next;
48	} grwin_t;
49
50	#include "graphics.intpro" /* PROTOS for internal routines */
51	#include <X11/cursorfont.h>
52
53	/* commands:
54	* 'C' = Clear
55	* 'F' = Fill
56	* 'G' = Geometry
57	* 'L' = Line
58	* 'P' = Points
59	* 'T' = Text
60	* 'W' = Window
61	*/
62
63	#ifndef GRX_SCALE
64	# define GRX_SCALE 10000
65	#endif
66
67	/----------------------------------------------------------------------
68	* local functions
69	*/
70	/* ARGSUSED */
71	/* INTPROTO */
72	void
73	rxvt_Gr_NewWindow(pR_ int nargs, int args[])
74	{
75	int x, y;
76	unsigned int w, h;
77	Window win;
78	grwin_t *grwin;
79	Cursor cursor;
80
81	if (nargs != 4) {
82	rxvt_print_error("NewWindow: 4 args needed, got %d\n", nargs);
83	return;
84	}
85	x = args[0] * TermWin_TotalWidth() / GRX_SCALE;
86	y = args[1] * TermWin_TotalHeight() / GRX_SCALE;
87	w = args[2] * TermWin_TotalWidth() / GRX_SCALE;
88	h = args[3] * TermWin_TotalHeight() / GRX_SCALE;
89
90	win = XCreateSimpleWindow(R->Xdisplay, R->TermWin.vt,
91	x, y, w, h,
92	0,
93	R->PixColors[Color_fg],
94	R->PixColors[Color_bg]);
95
96	cursor = XCreateFontCursor(R->Xdisplay, XC_crosshair);
97	XDefineCursor(R->Xdisplay, win, cursor);
98	XMapWindow(R->Xdisplay, win);
99	XSelectInput(R->Xdisplay, win, ExposureMask);
100
101	grwin = (grwin_t *) rxvt_malloc(sizeof(grwin_t));
102	grwin->win = win;
103	grwin->x = x;
104	grwin->y = y;
105	grwin->w = w;
106	grwin->h = h;
107	grwin->screen = 0;
108	grwin->prev = NULL;
109	grwin->next = R->gr_root;
110	if (grwin->next)
111	grwin->next->prev = grwin;
112	R->gr_root = grwin;
113	grwin->graphics = NULL;
114	R->graphics_up++;
115
116	R->tt_printf("\033W%ld\n", (long)grwin->win);
117	}
118
119	/* ARGSUSED */
120	/* INTPROTO */
121	void
122	rxvt_Gr_ClearWindow(pR_ grwin_t *grwin)
123	{
124	grcmd_t cmd, next;
125
126	for (cmd = grwin->graphics; cmd != NULL; cmd = next) {
127	next = cmd->next;
128	free(cmd->coords);
129	if (cmd->text != NULL)
130	free(cmd->text);
131	free(cmd);
132	}
133	grwin->graphics = NULL;
134	XClearWindow(R->Xdisplay, grwin->win);
135	}
136
137	/*
138	* arg [0] = x
139	* arg [1] = y
140	* arg [2] = alignment
141	* arg [3] = strlen (text)
142	*/
143	/* ARGSUSED */
144	/* INTPROTO */
145	void
146	rxvt_Gr_Text(pR_ grwin_t grwin, grcmd_t data)
147	{
148	int x, y, align;
149
150	if (data->ncoords < 4 \|\| data->text == NULL \|\| *(data->text) == '\0')
151	return;
152
153	x = data->coords[0] * grwin->w / GRX_SCALE;
154	y = data->coords[1] * grwin->h / GRX_SCALE;
155	align = data->coords[2];
156
157	if ((align & HORIZONTAL_ALIGNMENT) == RIGHT_TEXT)
158	x -= XTextWidth(R->TermWin.font, data->text, data->coords[3]);
159	else if ((align & HORIZONTAL_ALIGNMENT) == HCENTER_TEXT)
160	x -= (XTextWidth(R->TermWin.font, data->text, data->coords[3]) >> 1);
161
162	if ((align & VERTICAL_ALIGNMENT) == TOP_TEXT)
163	y += R->TermWin.font->ascent;
164	else if ((align & VERTICAL_ALIGNMENT) == BOTTOM_TEXT)
165	y -= R->TermWin.font->descent;
166
167	if ((align & VERTICAL_ALIGNMENT) == VCENTER_TEXT)
168	y -= R->TermWin.font->descent
169	+ ((R->TermWin.font->ascent + R->TermWin.font->descent) >> 1);
170	if ((align & VERTICAL_ALIGNMENT) == VCAPS_CENTER_TEXT)
171	y += (R->TermWin.font->ascent >> 1);
172
173	XPMClearArea(R->Xdisplay, grwin->win, x, y - R->TermWin.font->ascent,
174	Width2Pixel(data->coords[3]), Height2Pixel(1), 0);
175	XDrawString(R->Xdisplay, grwin->win, R->TermWin.gc, x, y,
176	data->text, data->coords[3]);
177	}
178
179	/* ARGSUSED */
180	/* INTPROTO */
181	void
182	rxvt_Gr_Geometry(pR_ grwin_t grwin, grcmd_t data __attribute__((unused)))
183	{
184	if (grwin)
185	rxvt_tt_printf(aR_ "\033G%ld %d %d %u %u %d %d %ld %ld %d\n",
186	(long)grwin->win,
187	grwin->x, grwin->y, grwin->w, grwin->h,
188	R->TermWin.fwidth,
189	R->TermWin.fheight,
190	(long)GRX_SCALE * R->TermWin.fwidth / grwin->w,
191	(long)GRX_SCALE * R->TermWin.fheight / grwin->h,
192	XDEPTH);
193	else /* rxvt terminal window size */
194	rxvt_tt_printf(aR_ "\033G0 0 0 %d %d %d %d %ld %ld %d\n",
195	TermWin_TotalWidth(), TermWin_TotalHeight(),
196	R->TermWin.fwidth, R->TermWin.fheight,
197	(long)GRX_SCALE * R->TermWin.fwidth / R->TermWin.width,
198	(long)GRX_SCALE * R->TermWin.fheight / R->TermWin.height,
199	XDEPTH);
200	}
201
202	/* ARGSUSED */
203	/* INTPROTO */
204	void
205	rxvt_Gr_DestroyWindow(pR_ grwin_t *grwin)
206	{
207	grcmd_t cmd, next;
208
209	if (grwin == NULL)
210	return;
211
212	for (cmd = grwin->graphics; cmd; cmd = next) {
213	next = cmd->next;
214	free(cmd->coords);
215	if (cmd->text != NULL)
216	free(cmd->text);
217	free(cmd);
218	}
219
220	XDestroyWindow(R->Xdisplay, grwin->win);
221	if (grwin->next != NULL)
222	grwin->next->prev = grwin->prev;
223	if (grwin->prev != NULL)
224	grwin->prev->next = grwin->next;
225	else
226	R->gr_root = grwin->next;
227	free(grwin);
228
229	R->graphics_up--;
230	}
231
232	/* ARGSUSED */
233	/* INTPROTO */
234	void
235	rxvt_Gr_Dispatch(pR_ grwin_t grwin, grcmd_t data)
236	{
237	int i, n;
238	union {
239	XPoint pt[NGRX_PTS / 2];
240	XRectangle rect[NGRX_PTS / 4];
241	} xdata;
242
243	if (data->color != Color_fg) {
244	XGCValues gcv;
245
246	gcv.foreground = R->PixColors[data->color];
247	XChangeGC(R->Xdisplay, R->TermWin.gc, GCForeground, &gcv);
248	}
249	if (grwin)
250	switch (data->cmd) {
251	case 'L':
252	if (data->ncoords > 3) {
253	for (n = i = 0; i < data->ncoords; i += 2, n++) {
254	xdata.pt[n].x = data->coords[i] * grwin->w / GRX_SCALE;
255	xdata.pt[n].y = data->coords[i + 1] * grwin->h / GRX_SCALE;
256	}
257	XDrawLines(R->Xdisplay,
258	grwin->win, R->TermWin.gc, xdata.pt, n, CoordModeOrigin);
259	}
260	break;
261
262	case 'P':
263	if (data->ncoords > 3) {
264	for (n = i = 0; i < data->ncoords; i += 2, n++) {
265	xdata.pt[n].x = data->coords[i] * grwin->w / GRX_SCALE;
266	xdata.pt[n].y = data->coords[i + 1] * grwin->h / GRX_SCALE;
267	}
268	XDrawPoints(R->Xdisplay,
269	grwin->win, R->TermWin.gc, xdata.pt, n, CoordModeOrigin);
270	}
271	break;
272
273	case 'F':
274	if (data->ncoords > 0) {
275	for (n = i = 0; i < data->ncoords; i += 4, n++) {
276	xdata.rect[n].x = data->coords[i] * grwin->w / GRX_SCALE;
277	xdata.rect[n].y = data->coords[i + 1] * grwin->h
278	/ GRX_SCALE;
279	xdata.rect[n].width = ((data->coords[i + 2]
280	- data->coords[i] + 1) *
281	grwin->w / GRX_SCALE);
282	xdata.rect[n].height = ((data->coords[i + 3]
283	- data->coords[i + 1] + 1) *
284	grwin->h / GRX_SCALE);
285	XPMClearArea(R->Xdisplay, grwin->win,
286	xdata.rect[n].x, xdata.rect[n].y,
287	xdata.rect[n].width, xdata.rect[n].height,
288	0);
289	}
290	XFillRectangles(R->Xdisplay, grwin->win, R->TermWin.gc, xdata.rect,
291	n);
292	}
293	break;
294	case 'T':
295	rxvt_Gr_Text(aR_ grwin, data);
296	break;
297	case 'C':
298	rxvt_Gr_ClearWindow(aR_ grwin);
299	break;
300	}
301	if (data->color != Color_fg) {
302	XGCValues gcv;
303
304	gcv.foreground = R->PixColors[Color_fg];
305	XChangeGC(R->Xdisplay, R->TermWin.gc, GCForeground, &gcv);
306	}
307	}
308
309	/* ARGSUSED */
310	/* INTPROTO */
311	void
312	rxvt_Gr_Redraw(pR_ grwin_t *grwin)
313	{
314	grcmd_t *cmd;
315
316	for (cmd = grwin->graphics; cmd != NULL; cmd = cmd->next)
317	rxvt_Gr_Dispatch(aR_ grwin, cmd);
318	}
319
320	/----------------------------------------------------------------------
321	* end of static functions
322	*/
323	/* ARGSUSED */
324	/* EXTPROTO */
325	void
326	rxvt_Gr_ButtonReport(pR_ int but, int x, int y)
327	{
328	grwin_t *grwin;
329
330	for (grwin = R->gr_root; grwin != NULL; grwin = grwin->next)
331	if ((x > grwin->x)
332	&& (y > grwin->y)
333	&& ((unsigned int)x < grwin->x + grwin->w)
334	&& ((unsigned int)y < grwin->y + grwin->h))
335	break;
336
337	if (grwin == NULL)
338	return;
339
340	x = GRX_SCALE * (x - grwin->x) / grwin->w;
341	y = GRX_SCALE * (y - grwin->y) / grwin->h;
342	rxvt_tt_printf(aR_ "\033%c%ld;%d;%d;\n", but, (long)grwin->win, x, y);
343	}
344
345	/* ARGSUSED */
346	/* EXTPROTO */
347	void
348	rxvt_Gr_do_graphics(pR_ int cmd, unsigned int nargs, int args[], unsigned char *text)
349	{
350	int i;
351	Window win_id;
352	grwin_t *grwin;
353	grcmd_t newcmd, oldcmd;
354
355	if (cmd == 'W') {
356	rxvt_Gr_NewWindow(aR_ nargs, args);
357	return;
358	}
359	win_id = (nargs > 0) ? (Window) args[0] : None;
360
361	if ((cmd == 'G') && (win_id == None)) {
362	rxvt_Gr_Geometry(aR_ NULL, NULL);
363	return;
364	}
365	if ((win_id == None) && (R->gr_last_id != None))
366	win_id = R->gr_last_id;
367
368	if (win_id == None)
369	return;
370
371	grwin = R->gr_root;
372	while ((grwin != NULL) && (grwin->win != win_id))
373	grwin = grwin->next;
374
375	if (grwin == NULL)
376	return;
377
378	if (cmd == 'G') {
379	rxvt_Gr_Geometry(aR_ grwin, NULL);
380	return;
381	}
382	nargs--;
383	args++; /* skip over window id */
384
385	/* record this new command */
386	newcmd = (grcmd_t *) rxvt_malloc(sizeof(grcmd_t));
387	newcmd->ncoords = nargs;
388	newcmd->coords = (int )rxvt_malloc((newcmd->ncoords sizeof(int)));
389
390	newcmd->next = NULL;
391	newcmd->cmd = cmd;
392	newcmd->color = rxvt_scr_get_fgcolor(aR);
393	newcmd->text = text;
394
395	for (i = 0; i < newcmd->ncoords; i++)
396	newcmd->coords[i] = args[i];
397
398	/*
399	* If newcmd == fill, and rectangle is full window, drop all prior
400	* commands.
401	*/
402	if ((newcmd->cmd == 'F') && (grwin) && (grwin->graphics)) {
403	for (i = 0; i < newcmd->ncoords; i += 4) {
404	if ((newcmd->coords[i] == 0)
405	&& (newcmd->coords[i + 1] == 0)
406	&& (newcmd->coords[i + 2] == GRX_SCALE)
407	&& (newcmd->coords[i + 3] == GRX_SCALE)) {
408	/* drop previous commands */
409	oldcmd = grwin->graphics;
410	while (oldcmd->next != NULL) {
411	grcmd_t *tmp = oldcmd;
412
413	oldcmd = oldcmd->next;
414	free(tmp);
415	}
416	grwin->graphics = NULL;
417	}
418	}
419	}
420	/* insert new command into command list */
421	oldcmd = grwin->graphics;
422	if (oldcmd == NULL)
423	grwin->graphics = newcmd;
424	else {
425	while (oldcmd->next != NULL)
426	oldcmd = oldcmd->next;
427	oldcmd->next = newcmd;
428	}
429	rxvt_Gr_Dispatch(aR_ grwin, newcmd);
430	}
431
432	/* ARGSUSED */
433	/* EXTPROTO */
434	void
435	rxvt_Gr_scroll(pR_ int count)
436	{
437	grwin_t grwin, next;
438
439	if ((count == 0) && (R->gr_prev_start == R->TermWin.view_start))
440	return;
441
442	R->gr_prev_start = R->TermWin.view_start;
443
444	for (grwin = R->gr_root; grwin != NULL; grwin = next) {
445	next = grwin->next;
446	grwin->y -= (count * R->TermWin.fheight);
447	if ((long)(grwin->y + grwin->h)
448	< -(long)(R->TermWin.saveLines * R->TermWin.fheight))
449	rxvt_Gr_DestroyWindow(aR_ grwin);
450	else
451	XMoveWindow(R->Xdisplay, grwin->win,
452	grwin->x,
453	grwin->y + (R->TermWin.view_start * R->TermWin.fheight));
454	}
455	}
456
457	/* EXTPROTO */
458	void
459	rxvt_Gr_ClearScreen(pR)
460	{
461	grwin_t grwin, next;
462
463	for (grwin = R->gr_root; grwin != NULL; grwin = next) {
464	next = grwin->next;
465	if ((grwin->screen == 0) && (grwin->y + grwin->h > 0)) {
466	if (grwin->y >= 0)
467	rxvt_Gr_DestroyWindow(aR_ grwin);
468	else
469	XResizeWindow(R->Xdisplay, grwin->win,
470	grwin->w, -grwin->y);
471	}
472	}
473	}
474
475	/* EXTPROTO */
476	void
477	rxvt_Gr_ChangeScreen(pR)
478	{
479	grwin_t grwin, next;
480
481	for (grwin = R->gr_root; grwin != NULL; grwin = next) {
482	next = grwin->next;
483	if (grwin->y + grwin->h > 0) {
484	if (grwin->screen == 1) {
485	XMapWindow(R->Xdisplay, grwin->win);
486	grwin->screen = 0;
487	} else {
488	XUnmapWindow(R->Xdisplay, grwin->win);
489	grwin->screen = 1;
490	}
491	}
492	}
493	}
494
495	/* ARGSUSED */
496	/* EXTPROTO */
497	void
498	rxvt_Gr_expose(pR_ Window win)
499	{
500	grwin_t *grwin;
501
502	for (grwin = R->gr_root; grwin != NULL; grwin = grwin->next) {
503	if (grwin->win == win) {
504	rxvt_Gr_Redraw(aR_ grwin);
505	break;
506	}
507	}
508	}
509
510	/* ARGSUSED */
511	/* EXTPROTO */
512	void
513	rxvt_Gr_Resize(pR_ int w __attribute__((unused)), int h)
514	{
515	grwin_t *grwin;
516
517	for (grwin = R->gr_root; grwin != NULL; grwin = grwin->next) {
518	if (R->TermWin.height != h) {
519	grwin->y += (R->TermWin.height - h);
520	XMoveWindow(R->Xdisplay, grwin->win,
521	grwin->x,
522	grwin->y + (R->TermWin.view_start * R->TermWin.fheight));
523	}
524	rxvt_Gr_Redraw(aR_ grwin);
525	}
526	}
527
528	/* EXTPROTO */
529	void
530	rxvt_Gr_reset(pR)
531	{
532	grwin_t grwin, next;
533
534	for (grwin = R->gr_root; grwin != NULL; grwin = next) {
535	next = grwin->next;
536	rxvt_Gr_DestroyWindow(aR_ grwin);
537	}
538
539	R->graphics_up = 0;
540	}
541
542	/* EXTPROTO */
543	int
544	rxvt_Gr_Displayed(pR)
545	{
546	return R->graphics_up;
547	}
548	#endif
549	/----------------------- end-of-file (C source) -----------------------/