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501 lines
12 KiB
501 lines
12 KiB
#include <stdarg.h>
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#include "VNConsole.h"
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#define DEBUG(x)
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unsigned char colourMap16[16*3]={
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/* 0 black #000000 */ 0x00,0x00,0x00,
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/* 1 maroon #800000 */ 0x80,0x00,0x00,
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/* 2 green #008000 */ 0x00,0x80,0x00,
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/* 3 khaki #808000 */ 0x80,0x80,0x00,
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/* 4 navy #000080 */ 0x00,0x00,0x80,
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/* 5 purple #800080 */ 0x80,0x00,0x80,
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/* 6 aqua-green #008080 */ 0x00,0x80,0x80,
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/* 7 light grey #c0c0c0 */ 0xc0,0xc0,0xc0,
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/* 8 dark grey #808080 */ 0x80,0x80,0x80,
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/* 9 red #ff0000 */ 0xff,0x00,0x00,
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/* a light green #00ff00 */ 0x00,0xff,0x00,
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/* b yellow #ffff00 */ 0xff,0xff,0x00,
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/* c blue #0000ff */ 0x00,0x00,0xff,
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/* d pink #ff00ff */ 0xff,0x00,0xff,
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/* e light blue #00ffff */ 0x00,0xff,0xff,
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/* f white #ffffff */ 0xff,0xff,0xff
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};
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void MakeColourMap16(vncConsolePtr c)
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{
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int i,j;
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rfbColourMap* colourMap=&(c->rfbScreen->colourMap);
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if(colourMap->count)
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free(colourMap->data.bytes);
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colourMap->data.bytes=malloc(16*3);
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memcpy(colourMap->data.bytes,colourMap16,16*3);
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colourMap->count=16;
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colourMap->is16=FALSE;
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c->rfbScreen->rfbServerFormat.trueColour=FALSE;
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}
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void vcDrawOrHideCursor(vncConsolePtr c)
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{
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int i,j,w=c->rfbScreen->paddedWidthInBytes;
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char *b=c->rfbScreen->frameBuffer+c->y*c->cHeight*w+c->x*c->cWidth;
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for(j=c->cy1;j<c->cy2;j++)
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for(i=c->cx1;i<c->cx2;i++)
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b[j*w+i]^=0x0f;
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rfbMarkRectAsModified(c->rfbScreen,
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c->x*c->cWidth+c->cx1,c->y*c->cHeight+c->cy1,
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c->x*c->cWidth+c->cx2,c->y*c->cHeight+c->cy2);
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c->cursorIsDrawn=c->cursorIsDrawn?FALSE:TRUE;
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}
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void vcDrawCursor(vncConsolePtr c)
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{
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rfbDrawCursor(c->rfbScreen);
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if(c->cursorActive && !c->cursorIsDrawn && c->y<c->height && c->x<c->width) {
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/* rfbLog("DrawCursor: %d,%d\n",c->x,c->y); */
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vcDrawOrHideCursor(c);
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}
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}
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void vcHideCursor(vncConsolePtr c)
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{
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rfbUndrawCursor(c->rfbScreen);
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if(c->currentlyMarking)
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vcUnmark(c);
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if(c->cursorIsDrawn) {
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/* rfbLog("HideCursor: %d,%d\n",c->x,c->y); */
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vcDrawOrHideCursor(c);
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}
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}
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void vcMakeSureCursorIsDrawn(rfbClientPtr cl)
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{
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vncConsolePtr c=(vncConsolePtr)cl->screen->screenData;
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if(!c->dontDrawCursor)
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vcDrawCursor(c);
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}
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vncConsolePtr vcGetConsole(int *argc,char **argv,
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int width,int height,rfbFontDataPtr font
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#ifdef USE_ATTRIBUTE_BUFFER
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,rfbBool withAttributes
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#endif
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)
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{
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vncConsolePtr c=(vncConsolePtr)malloc(sizeof(vncConsole));
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c->font=font;
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c->width=width;
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c->height=height;
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c->screenBuffer=(char*)malloc(width*height);
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memset(c->screenBuffer,' ',width*height);
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#ifdef USE_ATTRIBUTE_BUFFER
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if(withAttributes) {
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c->attributeBuffer=(char*)malloc(width*height);
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memset(c->attributeBuffer,0x07,width*height);
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} else
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c->attributeBuffer=NULL;
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#endif
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c->x=0;
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c->y=0;
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c->wrapBottomToTop=FALSE;
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c->cursorActive=TRUE;
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c->cursorIsDrawn=FALSE;
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c->dontDrawCursor=FALSE;
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c->inputBuffer=(char*)malloc(1024);
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c->inputSize=1024;
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c->inputCount=0;
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c->selection=0;
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c->selectTimeOut=40000; /* 40 ms */
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c->doEcho=TRUE;
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c->wasRightButtonDown=FALSE;
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c->currentlyMarking=FALSE;
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rfbWholeFontBBox(font,&c->xhot,&c->cHeight,&c->cWidth,&c->yhot);
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c->cWidth-=c->xhot;
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c->cHeight=-c->cHeight-c->yhot;
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/* text cursor */
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c->cx1=c->cWidth/8;
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c->cx2=c->cWidth*7/8;
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c->cy2=c->cHeight-1-c->yhot+c->cHeight/16;
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if(c->cy2>=c->cHeight)
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c->cy2=c->cHeight-1;
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c->cy1=c->cy2-c->cHeight/8;
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if(c->cy1<0)
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c->cy2=0;
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c->rfbScreen=
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rfbGetScreen(argc,argv,c->cWidth*c->width,c->cHeight*c->height,8,1,1);
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c->rfbScreen->screenData=(void*)c;
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c->rfbScreen->displayHook=vcMakeSureCursorIsDrawn;
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c->rfbScreen->frameBuffer=
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(char*)malloc(c->rfbScreen->width*c->rfbScreen->height);
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memset(c->rfbScreen->frameBuffer,c->backColour,
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c->rfbScreen->width*c->rfbScreen->height);
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c->rfbScreen->kbdAddEvent=vcKbdAddEventProc;
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c->rfbScreen->ptrAddEvent=vcPtrAddEventProc;
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c->rfbScreen->setXCutText=vcSetXCutTextProc;
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MakeColourMap16(c);
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c->foreColour=0x7;
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c->backColour=0;
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rfbInitServer(c->rfbScreen);
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return(c);
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}
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#include <rfb/rfbregion.h>
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/* before using this function, hide the cursor */
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void vcScroll(vncConsolePtr c,int lineCount)
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{
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int y1,y2;
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rfbScreenInfoPtr s=c->rfbScreen;
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if(lineCount==0)
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return;
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/* rfbLog("begin scroll\n"); */
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vcHideCursor(c);
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c->dontDrawCursor=TRUE;
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if(lineCount>=c->height || lineCount<=-c->height) {
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y1=0; y2=s->height;
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} else if(lineCount>0) {
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y1=s->height-lineCount*c->cHeight; y2=s->height;
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rfbDoCopyRect(s,0,0,s->width,y1,0,-lineCount*c->cHeight);
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memmove(c->screenBuffer,
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c->screenBuffer+(c->height-lineCount)*c->width,
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(c->height-lineCount)*c->width);
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#ifdef USE_ATTRIBUTE_BUFFER
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memmove(c->attributeBuffer,
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c->attributeBuffer+(c->height-lineCount)*c->width,
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(c->height-lineCount)*c->width);
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#endif
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} else {
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y1=0; y2=-lineCount*c->cHeight;
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rfbDoCopyRect(s,0,y2,s->width,s->height,0,-lineCount*c->cHeight);
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memmove(c->screenBuffer-lineCount*c->width,
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c->screenBuffer,
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(c->height+lineCount)*c->width);
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#ifdef USE_ATTRIBUTE_BUFFER
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memmove(c->attributeBuffer-lineCount*c->width,
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c->attributeBuffer,
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(c->height+lineCount)*c->width);
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#endif
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}
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c->dontDrawCursor=FALSE;
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memset(s->frameBuffer+y1*s->width,c->backColour,(y2-y1)*s->width);
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rfbMarkRectAsModified(s,0,y1-c->cHeight,s->width,y2);
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memset(c->screenBuffer+y1/c->cHeight*c->width,' ',
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(y2-y1)/c->cHeight*c->width);
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#ifdef USE_ATTRIBUTE_BUFFER
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memset(c->attributeBuffer+y1/c->cHeight*c->width,0x07,
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(y2-y1)/c->cHeight*c->width);
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#endif
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/* rfbLog("end scroll\n"); */
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}
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void vcCheckCoordinates(vncConsolePtr c)
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{
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if(c->x>=c->width) {
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c->x=0;
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c->y++;
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}
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if(c->y>=c->height) {
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if(c->wrapBottomToTop)
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c->y=0;
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else {
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vcScroll(c,c->y+1-c->height);
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c->y=c->height-1;
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}
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}
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}
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void vcPutChar(vncConsolePtr c,unsigned char ch)
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{
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#ifdef USE_ATTRIBUTE_BUFFER
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if(c->attributeBuffer) {
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unsigned char colour=c->attributeBuffer[c->x+c->y*c->width];
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vcPutCharColour(c,ch,colour&0x7,colour>>4);
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} else
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#endif
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vcPutCharColour(c,ch,c->foreColour,c->backColour);
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}
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void vcPutCharColour(vncConsolePtr c,unsigned char ch,unsigned char foreColour,unsigned char backColour)
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{
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rfbScreenInfoPtr s=c->rfbScreen;
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int j,x,y;
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vcHideCursor(c);
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if(ch<' ') {
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switch(ch) {
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case 7:
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case 13:
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break;
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case 8: /* BackSpace */
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if(c->x>0) {
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c->x--;
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vcPutChar(c,' ');
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c->x--;
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}
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break;
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case 10: /* return */
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c->x=0;
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c->y++;
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vcCheckCoordinates(c);
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break;
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case 9: /* tabulator */
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do {
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vcPutChar(c,' ');
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} while(c->x%8);
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break;
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default:
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rfbLog("putchar of unknown character: %c(%d).\n",ch,ch);
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vcPutChar(c,' ');
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}
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} else {
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#ifdef USE_ATTRIBUTE_BUFFER
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if(c->attributeBuffer)
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c->attributeBuffer[c->x+c->y*c->width]=foreColour|(backColour<<4);
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#endif
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x=c->x*c->cWidth;
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y=c->y*c->cHeight;
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for(j=y+c->cHeight-1;j>=y;j--)
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memset(s->frameBuffer+j*s->width+x,backColour,c->cWidth);
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rfbDrawChar(s,c->font,
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x-c->xhot+(c->cWidth-rfbWidthOfChar(c->font,ch))/2,
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y+c->cHeight-c->yhot-1,
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ch,foreColour);
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c->screenBuffer[c->y*c->width+c->x]=ch;
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c->x++;
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rfbMarkRectAsModified(s,x,y-c->cHeight+1,x+c->cWidth,y+c->cHeight+1);
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vcCheckCoordinates(c);
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}
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}
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void vcPrint(vncConsolePtr c,unsigned char* str)
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{
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while(*str) {
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vcPutChar(c,*str);
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str++;
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}
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}
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void vcPrintColour(vncConsolePtr c,unsigned char* str,unsigned char foreColour,unsigned char backColour)
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{
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while(*str) {
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vcPutCharColour(c,*str,foreColour,backColour);
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str++;
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}
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}
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void vcPrintF(vncConsolePtr c,char* format,...)
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{
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va_list args;
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char buf[4096];
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va_start(args, format);
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vsprintf(buf, format, args);
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vcPrint(c,buf);
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va_end(args);
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}
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void vcPrintFColour(vncConsolePtr c,unsigned char foreColour,unsigned char backColour,char* format,...)
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{
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va_list args;
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char buf[4096];
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va_start(args, format);
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vsprintf(buf, format, args);
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vcPrintColour(c,buf,foreColour,backColour);
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va_end(args);
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}
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char vcGetCh(vncConsolePtr c)
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{
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if(c->inputCount>0) {
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char ch;
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ch=c->inputBuffer[0];
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c->inputCount--;
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if(c->inputCount>0)
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memmove(c->inputBuffer,c->inputBuffer+1,c->inputCount);
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return(ch);
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} else
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return(0);
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}
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char vcGetChar(vncConsolePtr c)
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{
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while(c->inputCount==0)
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vcProcessEvents(c);
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return(vcGetCh(c));
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}
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char *vcGetString(vncConsolePtr c,char *buffer,int bufferSize)
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{
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char *bufferBackup=c->inputBuffer;
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int i,count=bufferSize-1;
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if(count>c->inputCount)
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count=c->inputCount;
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for(i=1;i<count && bufferBackup[i-1]!='\n';i++);
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if(i<count || i==bufferSize-1) {
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memcpy(buffer,bufferBackup,i);
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buffer[i+1]=0;
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c->inputCount-=i;
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memmove(bufferBackup,bufferBackup+i+2,c->inputCount);
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return(buffer);
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}
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memcpy(buffer,bufferBackup,c->inputCount);
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count=c->inputSize;
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c->inputSize=bufferSize;
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c->inputBuffer=buffer;
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while(c->inputCount<bufferSize-1 && buffer[c->inputCount-1]!='\n')
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vcProcessEvents(c);
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buffer[c->inputCount]=0;
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c->inputBuffer=bufferBackup;
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c->inputSize=count;
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c->inputCount=0;
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return(buffer);
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}
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void vcKbdAddEventProc(rfbBool down,rfbKeySym keySym,rfbClientPtr cl)
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{
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vncConsolePtr c=(vncConsolePtr)cl->screen->screenData;
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if(down) {
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if(c->inputCount<c->inputSize) {
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if(keySym<0 || keySym>0xff) {
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if(keySym==XK_Return) keySym='\n';
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else if(keySym==XK_BackSpace) keySym=8;
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else if(keySym==XK_Tab) keySym=9;
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else keySym=0;
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}
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if(keySym>0) {
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if(keySym==8) {
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if(c->inputCount>0)
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c->inputCount--;
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} else
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c->inputBuffer[c->inputCount++]=(char)keySym;
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if(c->doEcho)
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vcPutChar(c,(unsigned char)keySym);
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}
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}
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}
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}
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void vcPtrAddEventProc(int buttonMask,int x,int y,rfbClientPtr cl)
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{
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vncConsolePtr c=(vncConsolePtr)cl->screen->screenData;
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rfbUndrawCursor(c->rfbScreen);
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if(c->wasRightButtonDown) {
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if((buttonMask&4)==0) {
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if(c->selection) {
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char* s;
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for(s=c->selection;*s;s++) {
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c->rfbScreen->kbdAddEvent(1,*s,cl);
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c->rfbScreen->kbdAddEvent(0,*s,cl);
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}
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}
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c->wasRightButtonDown=0;
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}
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} else if(buttonMask&4)
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c->wasRightButtonDown=1;
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if(buttonMask&1) {
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int cx=x/c->cWidth,cy=y/c->cHeight,pos;
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if(cx<0) cx=0; else if(cx>=c->width) cx=c->width-1;
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if(cy<0) cy=0; else if(cy>=c->height) cy=c->height-1;
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pos=cy*c->width+cx;
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// mark
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if(!c->currentlyMarking) {
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c->currentlyMarking=TRUE;
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c->markStart=pos;
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c->markEnd=pos;
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vcToggleMarkCell(c,pos);
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} else {
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DEBUG(rfbLog("markStart: %d, markEnd: %d, pos: %d\n",
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c->markStart,c->markEnd,pos));
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if(c->markEnd!=pos) {
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if(c->markEnd<pos) {
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cx=c->markEnd; cy=pos;
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} else {
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cx=pos; cy=c->markEnd;
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}
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if(cx<c->markStart) {
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if(cy<c->markStart)
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cy--;
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} else
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cx++;
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while(cx<=cy) {
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vcToggleMarkCell(c,cx);
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cx++;
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}
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c->markEnd=pos;
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}
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}
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} else if(c->currentlyMarking) {
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int i,j;
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if(c->markStart<c->markEnd) {
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i=c->markStart; j=c->markEnd+1;
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} else {
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i=c->markEnd; j=c->markStart;
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}
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if(c->selection) free(c->selection);
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c->selection=(char*)malloc(j-i+1);
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memcpy(c->selection,c->screenBuffer+i,j-i);
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c->selection[j-i]=0;
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vcUnmark(c);
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rfbGotXCutText(c->rfbScreen,c->selection,j-i);
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}
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defaultPtrAddEvent(buttonMask,x,y,cl);
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}
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void vcSetXCutTextProc(char* str,int len, struct _rfbClientRec* cl)
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{
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vncConsolePtr c=(vncConsolePtr)cl->screen->screenData;
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if(c->selection) free(c->selection);
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c->selection=(char*)malloc(len+1);
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memcpy(c->selection,str,len);
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c->selection[len]=0;
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}
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void vcToggleMarkCell(vncConsolePtr c,int pos)
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{
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int x=(pos%c->width)*c->cWidth,
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y=(pos/c->width)*c->cHeight;
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int i,j;
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rfbScreenInfoPtr s=c->rfbScreen;
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char *b=s->frameBuffer+y*s->width+x;
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for(j=0;j<c->cHeight;j++)
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for(i=0;i<c->cWidth;i++)
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b[j*s->width+i]^=0x0f;
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rfbMarkRectAsModified(c->rfbScreen,x,y,x+c->cWidth,y+c->cHeight);
|
|
}
|
|
|
|
void vcUnmark(vncConsolePtr c)
|
|
{
|
|
int i,j;
|
|
c->currentlyMarking=FALSE;
|
|
if(c->markStart<c->markEnd) {
|
|
i=c->markStart; j=c->markEnd+1;
|
|
} else {
|
|
i=c->markEnd; j=c->markStart;
|
|
}
|
|
for(;i<j;i++)
|
|
vcToggleMarkCell(c,i);
|
|
}
|
|
|
|
void vcProcessEvents(vncConsolePtr c)
|
|
{
|
|
rfbProcessEvents(c->rfbScreen,c->selectTimeOut);
|
|
}
|
|
|