move the library into libvncserver/, x11vnc into x11vnc/

1 files changed, 301 insertions, 0 deletions

diff --git a/libvncserver/selbox.c b/libvncserver/selbox.c
new file mode 100755
index 0000000..8d76e23
--- /dev/null
+++ b/libvncserver/selbox.c
@@ -0,0 +1,301 @@
+#include <ctype.h>
+#include <rfb/rfb.h>
+#include <rfb/keysym.h>
+
+typedef struct {
+  rfbScreenInfoPtr screen;
+  rfbFontDataPtr font;
+  char** list;
+  int listSize;
+  int selected;
+  int displayStart;
+  int x1,y1,x2,y2,textH,pageH;
+  int xhot,yhot;
+  int buttonWidth,okBX,cancelBX,okX,cancelX,okY;
+  rfbBool okInverted,cancelInverted;
+  int lastButtons;
+  rfbPixel colour,backColour;
+  SelectionChangedHookPtr selChangedHook;
+  enum { SELECTING, OK, CANCEL } state;
+} rfbSelectData;
+
+static const char* okStr="OK";
+static const char* cancelStr="Cancel";
+
+static void selPaintButtons(rfbSelectData* m,rfbBool invertOk,rfbBool invertCancel)
+{
+  rfbScreenInfoPtr s = m->screen;
+  rfbPixel bcolour = m->backColour;
+  rfbPixel colour = m->colour;
+
+  rfbFillRect(s,m->x1,m->okY-m->textH,m->x2,m->okY,bcolour);
+
+  if(invertOk) {
+    rfbFillRect(s,m->okBX,m->okY-m->textH,m->okBX+m->buttonWidth,m->okY,colour);
+    rfbDrawStringWithClip(s,m->font,m->okX+m->xhot,m->okY-1+m->yhot,okStr,
+			  m->x1,m->okY-m->textH,m->x2,m->okY,
+			  bcolour,colour);
+  } else
+    rfbDrawString(s,m->font,m->okX+m->xhot,m->okY-1+m->yhot,okStr,colour);
+    
+  if(invertCancel) {
+    rfbFillRect(s,m->cancelBX,m->okY-m->textH,
+	     m->cancelBX+m->buttonWidth,m->okY,colour);
+    rfbDrawStringWithClip(s,m->font,m->cancelX+m->xhot,m->okY-1+m->yhot,
+			  cancelStr,m->x1,m->okY-m->textH,m->x2,m->okY,
+			  bcolour,colour);
+  } else
+    rfbDrawString(s,m->font,m->cancelX+m->xhot,m->okY-1+m->yhot,cancelStr,colour);
+
+  m->okInverted = invertOk;
+  m->cancelInverted = invertCancel;
+}
+
+/* line is relative to displayStart */
+static void selPaintLine(rfbSelectData* m,int line,rfbBool invert)
+{
+  int y1 = m->y1+line*m->textH, y2 = y1+m->textH;
+  if(y2>m->y2)
+    y2=m->y2;
+  rfbFillRect(m->screen,m->x1,y1,m->x2,y2,invert?m->colour:m->backColour);
+  if(m->displayStart+line<m->listSize)
+    rfbDrawStringWithClip(m->screen,m->font,m->x1+m->xhot,y2-1+m->yhot,
+			  m->list[m->displayStart+line],
+			  m->x1,y1,m->x2,y2,
+			  invert?m->backColour:m->colour,
+			  invert?m->backColour:m->colour);
+}
+
+static void selSelect(rfbSelectData* m,int _index)
+{
+  int delta;
+
+  if(_index==m->selected || _index<0 || _index>=m->listSize)
+    return;
+
+  if(m->selected>=0)
+    selPaintLine(m,m->selected-m->displayStart,FALSE);
+
+  if(_index<m->displayStart || _index>=m->displayStart+m->pageH) {
+    /* targetLine is the screen line in which the selected line will
+       be displayed.
+       targetLine = m->pageH/2 doesn't look so nice */
+    int targetLine = m->selected-m->displayStart;
+    int lineStart,lineEnd;
+
+    /* scroll */
+    if(_index<targetLine)
+      targetLine = _index;
+    else if(_index+m->pageH-targetLine>=m->listSize)
+      targetLine = _index+m->pageH-m->listSize;
+    delta = _index-(m->displayStart+targetLine);
+
+    if(delta>-m->pageH && delta<m->pageH) {
+      if(delta>0) {
+	lineStart = m->pageH-delta;
+	lineEnd = m->pageH;
+	rfbDoCopyRect(m->screen,m->x1,m->y1,m->x2,m->y1+lineStart*m->textH,
+		      0,-delta*m->textH);
+      } else {
+	lineStart = 0;
+	lineEnd = -delta;
+	rfbDoCopyRect(m->screen,
+		      m->x1,m->y1+lineEnd*m->textH,m->x2,m->y2,
+		      0,-delta*m->textH);
+      }
+    } else {
+      lineStart = 0;
+      lineEnd = m->pageH;
+    }
+    m->displayStart += delta;
+    for(delta=lineStart;delta<lineEnd;delta++)
+      if(delta!=_index)
+	selPaintLine(m,delta,FALSE);
+  }
+
+  m->selected = _index;
+  selPaintLine(m,m->selected-m->displayStart,TRUE);
+
+  if(m->selChangedHook)
+    m->selChangedHook(_index);
+
+  /* todo: scrollbars */
+}
+
+static void selKbdAddEvent(rfbBool down,rfbKeySym keySym,rfbClientPtr cl)
+{
+  if(down) {
+    if(keySym>' ' && keySym<0xff) {
+      int i;
+      rfbSelectData* m = (rfbSelectData*)cl->screen->screenData;
+      char c = tolower(keySym);
+
+      for(i=m->selected+1;m->list[i] && tolower(m->list[i][0])!=c;i++);
+      if(!m->list[i])
+	for(i=0;i<m->selected && tolower(m->list[i][0])!=c;i++);
+      selSelect(m,i);
+    } else if(keySym==XK_Escape) {
+      rfbSelectData* m = (rfbSelectData*)cl->screen->screenData;
+      m->state = CANCEL;
+    } else if(keySym==XK_Return) {
+      rfbSelectData* m = (rfbSelectData*)cl->screen->screenData;
+      m->state = OK;
+    } else {
+      rfbSelectData* m = (rfbSelectData*)cl->screen->screenData;
+      int curSel=m->selected;
+      if(keySym==XK_Up) {
+	if(curSel>0)
+	  selSelect(m,curSel-1);
+      } else if(keySym==XK_Down) {
+	if(curSel+1<m->listSize)
+	  selSelect(m,curSel+1);
+      } else {
+	if(keySym==XK_Page_Down) {
+	  if(curSel+m->pageH<m->listSize)
+	    selSelect(m,curSel+m->pageH);
+	  else
+	    selSelect(m,m->listSize-1);
+	} else if(keySym==XK_Page_Up) {
+	  if(curSel-m->pageH>=0)
+	    selSelect(m,curSel-m->pageH);
+	  else
+	    selSelect(m,0);
+	}
+      }
+    }
+  }
+}
+
+static void selPtrAddEvent(int buttonMask,int x,int y,rfbClientPtr cl)
+{
+  rfbSelectData* m = (rfbSelectData*)cl->screen->screenData;
+  if(y<m->okY && y>=m->okY-m->textH) {
+    if(x>=m->okBX && x<m->okBX+m->buttonWidth) {
+      if(!m->okInverted)
+	selPaintButtons(m,TRUE,FALSE);
+      if(buttonMask)
+	m->state = OK;
+    } else if(x>=m->cancelBX && x<m->cancelBX+m->buttonWidth) {
+      if(!m->cancelInverted)
+	selPaintButtons(m,FALSE,TRUE);
+      if(buttonMask)
+	m->state = CANCEL;
+    } else if(m->okInverted || m->cancelInverted)
+      selPaintButtons(m,FALSE,FALSE);
+  } else {
+    if(m->okInverted || m->cancelInverted)
+      selPaintButtons(m,FALSE,FALSE);
+    if(!m->lastButtons && buttonMask) {
+      if(x>=m->x1 && x<m->x2 && y>=m->y1 && y<m->y2)
+	selSelect(m,m->displayStart+(y-m->y1)/m->textH);
+    }
+  }
+  m->lastButtons = buttonMask;
+
+  /* todo: scrollbars */
+}
+
+static rfbCursorPtr selGetCursorPtr(rfbClientPtr cl)
+{
+  return(0);
+}
+
+int rfbSelectBox(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font,
+		 char** list,
+		 int x1,int y1,int x2,int y2,
+		 rfbPixel colour,rfbPixel backColour,
+		 int border,SelectionChangedHookPtr selChangedHook)
+{
+   int bpp = rfbScreen->bitsPerPixel/8;
+   char* frameBufferBackup;
+   void* screenDataBackup = rfbScreen->screenData;
+   KbdAddEventProcPtr kbdAddEventBackup = rfbScreen->kbdAddEvent;
+   PtrAddEventProcPtr ptrAddEventBackup = rfbScreen->ptrAddEvent;
+   GetCursorProcPtr getCursorPtrBackup = rfbScreen->getCursorPtr;
+   DisplayHookPtr displayHookBackup = rfbScreen->displayHook;
+   rfbSelectData selData;
+   int i,j,k;
+   int fx1,fy1,fx2,fy2; /* for font bbox */
+
+   if(list==0 || *list==0)
+     return(-1);
+   
+   rfbWholeFontBBox(font, &fx1, &fy1, &fx2, &fy2);
+   selData.textH = fy2-fy1;
+   /* I need at least one line for the choice and one for the buttons */
+   if(y2-y1<selData.textH*2+3*border)
+     return(-1);
+   selData.xhot = -fx1;
+   selData.yhot = -fy2;
+   selData.x1 = x1+border;
+   selData.y1 = y1+border;
+   selData.y2 = y2-selData.textH-3*border;
+   selData.x2 = x2-2*border;
+   selData.pageH = (selData.y2-selData.y1)/selData.textH;
+
+   i = rfbWidthOfString(font,okStr);
+   j = rfbWidthOfString(font,cancelStr);
+   selData.buttonWidth= k = 4*border+(i<j)?j:i;
+   selData.okBX = x1+(x2-x1-2*k)/3;
+   if(selData.okBX<x1+border) /* too narrow! */
+     return(-1);
+   selData.cancelBX = x1+k+(x2-x1-2*k)*2/3;
+   selData.okX = selData.okBX+(k-i)/2;
+   selData.cancelX = selData.cancelBX+(k-j)/2;
+   selData.okY = y2-border;
+
+   rfbUndrawCursor(rfbScreen);
+   frameBufferBackup = (char*)malloc(bpp*(x2-x1)*(y2-y1));
+
+   selData.state = SELECTING;
+   selData.screen = rfbScreen;
+   selData.font = font;
+   selData.list = list;
+   selData.colour = colour;
+   selData.backColour = backColour;
+   for(i=0;list[i];i++);
+   selData.selected = i;
+   selData.listSize = i;
+   selData.displayStart = i;
+   selData.lastButtons = 0;
+   selData.selChangedHook = selChangedHook;
+   
+   rfbScreen->screenData = &selData;
+   rfbScreen->kbdAddEvent = selKbdAddEvent;
+   rfbScreen->ptrAddEvent = selPtrAddEvent;
+   rfbScreen->getCursorPtr = selGetCursorPtr;
+   rfbScreen->displayHook = 0;
+   
+   /* backup screen */
+   for(j=0;j<y2-y1;j++)
+     memcpy(frameBufferBackup+j*(x2-x1)*bpp,
+	    rfbScreen->frameBuffer+j*rfbScreen->paddedWidthInBytes+x1*bpp,
+	    (x2-x1)*bpp);
+
+   /* paint list and buttons */
+   rfbFillRect(rfbScreen,x1,y1,x2,y2,colour);
+   selPaintButtons(&selData,FALSE,FALSE);
+   selSelect(&selData,0);
+
+   /* modal loop */
+   while(selData.state == SELECTING)
+     rfbProcessEvents(rfbScreen,20000);
+
+   /* copy back screen data */
+   for(j=0;j<y2-y1;j++)
+     memcpy(rfbScreen->frameBuffer+j*rfbScreen->paddedWidthInBytes+x1*bpp,
+	    frameBufferBackup+j*(x2-x1)*bpp,
+	    (x2-x1)*bpp);
+   free(frameBufferBackup);
+   rfbMarkRectAsModified(rfbScreen,x1,y1,x2,y2);
+   rfbScreen->screenData = screenDataBackup;
+   rfbScreen->kbdAddEvent = kbdAddEventBackup;
+   rfbScreen->ptrAddEvent = ptrAddEventBackup;
+   rfbScreen->getCursorPtr = getCursorPtrBackup;
+   rfbScreen->displayHook = displayHookBackup;
+
+   if(selData.state==CANCEL)
+     selData.selected=-1;
+   return(selData.selected);
+}
+