gnuplot/src/beos/GPBitmap.cpp at master · gnuplot/gnuplot · GitHub

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#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include "GPBitmap.h"

#include "GPView.h"

#include "constants.h"

#include <Region.h>

#include <ScrollBar.h>

#define LineSolid 1

/*******************************************************************/

// GPBitmap

GPBitmap::GPBitmap(float width, float height)

{

m_bitmap = new BBitmap(BRect(0,0,width-1,height-1),B_RGB_32_BIT,TRUE);

BRect r(0,0,width-1,height-1);

m_view = new BView(r,"BitmapDrawer",B_FOLLOW_ALL,0);

m_bitmap->AddChild(m_view);

max_commands = 7;

ncommands = 0;

m_needRedraw = false;

m_redrawing = false;

commands = (char **) malloc(max_commands * sizeof(char *));

this->width = nwidth = width;

this->height = nheight = height;

for(int i=1 ; i<16 ; i++) {

colors[i].red = i*16;

colors[i].green = i*16;

colors[i].blue = i*16;

colors[i].alpha = 255;

}

};

GPBitmap::GPBitmap(float width, float height, char **cmds)

{

}

GPBitmap::~GPBitmap()

{

if (m_bitmap)

delete m_bitmap;

if(m_view)

delete m_view;

if(ncommands)

clearCommands();

if(commands) {

free(commands);

commands = NULL;

}

void GPBitmap::SetDirty(BRegion *r)

{

BMessage msg(bmsgBitmapDirty);

m_needRedraw = true;

}

void GPBitmap::clearCommands()

{

int32 ncmds = atomic_add(&ncommands,-ncommands);

if(ncmds > 0) {

for( --ncmds ; ncmds >= 0 ; ncmds--) {

if(commands[ncmds])

free(commands[ncmds]);

commands[ncmds] = NULL;

}

#if 1

void GPBitmap::addCommands(BMessage *msg, int32 numCmds)

{

char *p, **cmd = NULL;

if (numCmds+ncommands >= max_commands) {

max_commands = max_commands + numCmds + 2;

commands = (commands)

? (char **) realloc(commands, max_commands * sizeof(char *))

: (char **) malloc(sizeof(char *));

}

if (!commands) {

fputs("gnuplot: can't get memory. aborted.\n", stderr);

// exit(1);

} else {

msg->FindPointer("cmds", (void **)&cmd);

// printf("got : %X at %X\n",cmd[0], cmd);

for(int i=0; i< numCmds; i++) {

// cmd = msg->FindString("cmd", i);

// p = (char *) malloc((unsigned) strlen(cmd[i]) + 1);

// if (!p) {

// fputs("gnuplot: can't get memory. aborted.\n", stderr);

// exit(1);

// } else

// commands[ncommands++] = strcpy(p, cmd[i]);

commands[ncommands++] = strdup(cmd[i]);

// commands[ncommands++] = cmd[i];

m_needRedraw = true;

}

#else

void GPBitmap::addCommands(BMessage *msg, int32 numCmds)

{

char *cmd = NULL;

if (numCmds+ncommands >= max_commands) {

max_commands = max_commands + numCmds + 2;

commands = (commands)

? (char **) realloc(commands, max_commands * sizeof(char *))

: (char **) malloc(sizeof(char *));

}

if (!commands) {

fputs("gnuplot: can't get memory. aborted.\n", stderr);

// exit(1);

} else {

for(int i=0; i< numCmds; i++) {

cmd = msg->FindString("cmd", i);

commands[ncommands++] = strdup(cmd);

m_needRedraw = true;

}

#endif

void GPBitmap::addCommand(char *cmd)

{

// printf("adding a cmd : %s\n",cmd);

if(!cmd)

return;

if (ncommands >= max_commands) {

max_commands = max_commands * 2 + 1;

commands = (commands)

? (char **) realloc(commands, max_commands * sizeof(char *))

: (char **) malloc(sizeof(char *));

}

if (!commands) {

fputs("gnuplot: can't get memory. X11 aborted.\n", stderr);

return; // exit(1);

} else {

commands[ncommands++] = strdup(cmd);

m_needRedraw = true;

}

void GPBitmap::ResizeTo(float width, float height, uint32 btns)

{

if(btns) {

nwidth = width;

nheight = height;

// m_needRedraw = true;

return;

}

BRect r(0,0,width-1,height-1);

if (m_bitmap)

m_bitmap->Lock();

if(m_view) {

m_bitmap->RemoveChild(m_view);

m_view->ResizeTo(nwidth, nheight);

} else

m_view = new BView(r,"BitmapDrawer",B_FOLLOW_ALL,0);

// drawing_thread = spawn_thread(&drawing_loop, "gnuplot io_loop", B_LOW_PRIORITY, this);

// resume_thread(drawing_thread);

// kill_thread(drawing_thread);

if (m_bitmap) {

m_bitmap->Unlock();

delete m_bitmap;

}

m_bitmap = new BBitmap(r,B_RGB_32_BIT,TRUE);

m_bitmap->Lock();

m_bitmap->AddChild(m_view);

this->width = nwidth = width;

this->height = nheight = height;

m_needRedraw = true;

}

int32 GPBitmap::drawing_loop(void* data)

{

int32 res = 1;

GPBitmap * bmp = (GPBitmap *)data;

return res;

}

/*-----------------------------------------------------------------------------

* display - display a stored plot

*---------------------------------------------------------------------------*/

void GPBitmap::display(float v_width, float v_height)

{

int n, x, y, jmode, sl, lt = 0, type, point, px, py;

int uwidth, user_width = 1; /* as specified by plot...linewidth */

char *buffer, *str;

float sw, vchar;

uint32 buttons;

BPoint cursor;

m_view->GetMouse(&cursor, &buttons);

if(buttons == 0) {

if ((width != v_width ) || (height != v_height))

ResizeTo(v_width, v_height, 0);

}

if (ncommands == 0 || m_needRedraw == false)

return;

vchar = 11.0;

m_view->SetFontSize(vchar);

/* set scaling factor between internal driver & window geometry */

xscale = width / 4096.0;

yscale = height / 4096.0;

/* initial point sizes, until overridden with P7xxxxyyyy */

px = (int) (xscale * pointsize);

py = (int) (yscale * pointsize);

/* set pixmap background */

m_view->SetHighColor(255,255,255);

m_view->FillRect(BRect(0,0,width,height));

m_view->SetViewColor(colors[2]);

/* loop over accumulated commands from inboard driver */

for (n = 0; n < ncommands; n++) {

buffer = commands[n];

/* X11_vector(x,y) - draw vector */

if (*buffer == 'V') {

sscanf(buffer, "V%4d%4d", &x, &y);

m_view->StrokeLine( BPoint(X(cx), Y(cy)),BPoint(X(x), Y(y)));

cx = x;

cy = y;

}

/* X11_move(x,y) - move */

else if (*buffer == 'M') {

sscanf(buffer, "M%4d%4d", &cx, &cy);

m_view->MovePenTo(BPoint(X(cx), Y(cy)));

}

/* X11_put_text(x,y,str) - draw text */

else if (*buffer == 'T') {

sscanf(buffer, "T%4d%4d", &x, &y);

str = buffer + 9;

sl = strlen(str) - 1;

sw = m_view->StringWidth(str, sl);

switch (jmode) {

case CENTRE: sw = -sw / 2; break;

case RIGHT: sw = -sw; break;

case LEFT: sw = 0; break;

}

m_view->SetHighColor(colors[2]);

m_view->DrawString(str, sl, BPoint(X(x) + sw, Y(y) + vchar / 3 ));

m_view->SetHighColor(colors[lt + 3]);

}

else if (*buffer == 'F') { /* fill box */

int style, xtmp, ytmp, w, h;

if (sscanf(buffer + 1, "%4d%4d%4d%4d%4d", &style, &xtmp, &ytmp, &w, &h) == 5) {

/* gnuplot has origin at bottom left, but X uses top left

* There may be an off-by-one (or more) error here.

* style ignored here for the moment

/* ULIG: the style parameter is now used for the fillboxes style

* (not implemented here), see the documentation */

m_view->SetHighColor(colors[0]);

m_view->FillRect(BRect(X(xtmp), Y(ytmp + h), w * xscale, h * yscale));

m_view->SetHighColor(colors[lt + 3]);

}

/* X11_justify_text(mode) - set text justification mode */

else if (*buffer == 'J')

sscanf(buffer, "J%4d", (int *) &jmode);

/* X11_linewidth(width) - set line width */

else if (*buffer == 'W')

sscanf(buffer + 1, "%4d", &user_width);

/* X11_linetype(type) - set line type */

else if (*buffer == 'L') {

sscanf(buffer, "L%4d", &lt);

lt = (lt % 8) + 2;

/* default width is 0 {which X treats as 1} */

uwidth = user_width; // widths[lt] ? user_width * widths[lt] : user_width;

// if (dashes[lt][0]) {

// type = LineOnOffDash;

// XSetDashes(dpy, gc, 0, dashes[lt], strlen(dashes[lt]));

// } else {

type = LineSolid;

// }

m_view->SetHighColor(colors[lt + 3]);

m_view->SetPenSize(uwidth);

m_view->SetLineMode(B_ROUND_CAP,B_BEVEL_JOIN);

// XSetLineAttributes(dpy, gc, width, type, CapButt, JoinBevel);

}

/* X11_point(number) - draw a point */

else if (*buffer == 'P') {

/* linux sscanf does not like %1d%4d%4d" with Oxxxxyyyy */

/* sscanf(buffer, "P%1d%4d%4d", &point, &x, &y); */

point = buffer[1] - '0';

sscanf(buffer + 2, "%4d%4d", &x, &y);

if (point == 7) {

/* set point size */

px = (int) (x * xscale * pointsize);

py = (int) (y * yscale * pointsize);

} else {

if (type != LineSolid || uwidth != 0) { /* select solid line */

m_view->SetPenSize(1.0);

m_view->SetLineMode(B_ROUND_CAP,B_BEVEL_JOIN);

// XSetLineAttributes(dpy, gc, 0, LineSolid, CapButt, JoinBevel);

}

switch (point) {

case 0: /* dot */ doDot(x,y); break;

case 1: /* do diamond */ doDiamond(x,y,px,py); break;

case 2: /* do plus */ doPlus(x,y,px,py); break;

case 3: /* do box */ doBox(x,y,px,py); break;

case 4: /* do X */ doCross(x,y,px,py); break;

case 5: /* do triangle */ doTriangle(x,y,px,py); break;

case 6: /* do star */ doStar(x,y,px,py); break;

}

if (type != LineSolid || uwidth != 0) { /* select solid line */

m_view->SetPenSize(uwidth);

// canview->SetLineMode(B_ROUND_CAP,B_ROUND_JOIN);

// XSetLineAttributes(dpy, gc, width, type, CapButt, JoinBevel);

}

} /* end X11_point(number) - draw a point */

} /* end loop over accumulated commands from inboard driver */

m_view->Sync();

m_needRedraw = false;

}

void GPBitmap::doDiamond(int x, int y, int px, int py) {

m_view->StrokeLine(BPoint(X(x) - px, Y(y)),BPoint(X(x), Y(y) - py));

m_view->StrokeLine(BPoint(X(x) + px, Y(y)));

m_view->StrokeLine(BPoint(X(x), Y(y) + py));

m_view->StrokeLine(BPoint(X(x) - px, Y(y)));

m_view->StrokeLine(BPoint(X(x), Y(y)),BPoint(X(x), Y(y)));

}

void GPBitmap::doPlus(int x, int y, int px, int py) {

m_view->StrokeLine(BPoint(X(x) - px, Y(y)),BPoint(X(x) + px, Y(y)));

m_view->StrokeLine(BPoint(X(x), Y(y) - py),BPoint(X(x), Y(y) + py));

}

void GPBitmap::doBox(int x, int y, int px, int py) {

m_view->StrokeRect(BRect(X(x) - px, Y(y) - py, (px + px), (py + py)));

m_view->StrokeLine(BPoint(X(x), Y(y)),BPoint(X(x), Y(y)));

}

void GPBitmap::doCross(int x, int y, int px, int py) {

m_view->StrokeLine(BPoint(X(x) - px, Y(y) - py),BPoint(X(x) + px, Y(y) + py));

m_view->StrokeLine(BPoint(X(x) - px, Y(y) + py),BPoint(X(x) + px, Y(y) - py));

}

void GPBitmap::doTriangle(int x, int y, int px, int py) {

short temp_x, temp_y;

temp_x = (short) (1.33 * (double) px + 0.5);

temp_y = (short) (1.33 * (double) py + 0.5);

m_view->StrokeLine(BPoint(X(x), Y(y) - temp_y), BPoint(X(x) + temp_x, Y(y) - temp_y + 2 * py));

m_view->StrokeLine(BPoint(X(x) - temp_x, Y(y) - temp_y + 2 * py));

m_view->StrokeLine(BPoint(X(x), Y(y) - temp_y));

m_view->StrokeLine(BPoint(X(x), Y(y)),BPoint(X(x), Y(y)));

}

void GPBitmap::doStar(int x, int y, int px, int py) {

m_view->StrokeLine(BPoint(X(x)-px, Y(y)), BPoint(X(x) + px, Y(y)));

m_view->StrokeLine(BPoint(X(x), Y(y)-py), BPoint(X(x), Y(y)+py));

m_view->StrokeLine(BPoint(X(x)-px, Y(y)-py), BPoint(X(x)+px, Y(y)+py));

m_view->StrokeLine(BPoint(X(x)-px, Y(y)+py), BPoint(X(x)+px, Y(y)-py));

}

void GPBitmap::doDot(int x, int y) {

m_view->StrokeLine(BPoint(X(x), Y(y)),BPoint(X(x), Y(y)));

}

gnuplot/src/beos/GPBitmap.cpp at master · gnuplot/gnuplot · GitHub

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