/**************************************************************************** * This module is all original code * by Rob Nation * Copyright 1993, Robert Nation * You may use this code for any purpose, as long as the original * copyright remains in the source code and all documentation ****************************************************************************/ /*********************************************************************** * * window resizing borrowed from the "wm" window manager * ***********************************************************************/ #include #include #include #include "fvwm.h" #include "misc.h" #include "screen.h" #include "parse.h" static int dragx; /* all these variables are used */ static int dragy; /* in resize operations */ static int dragWidth; static int dragHeight; static int XOffset, YOffset; static int origx; static int origy; static int origWidth; static int origHeight; static int ymotion=0, xmotion = 0; static int last_width,last_height; extern int menuFromFrameOrWindowOrTitlebar; extern Window PressedW; /**************************************************************************** * * Starts a window resize operation * ****************************************************************************/ void resize_window(XEvent *eventp, Window w, FvwmWindow *tmp_win, unsigned long context, char *action, int *Module) { Bool finished = FALSE, done = FALSE, abort = FALSE; int x, y, delta_x, delta_y; Window ResizeWindow; extern int Stashed_X, Stashed_Y; Bool flags; XGCValues gcv; int val1, val2, val1_unit, val2_unit, n; if (DeferExecution(eventp,&w,&tmp_win,&context, MOVE, ButtonPress)) return; if(check_allowed_function2(F_RESIZE,tmp_win) == 0) { XBell(dpy, Scr.screen); return; } n = GetTwoArguments(action, &val1, &val2, &val1_unit, &val2_unit); tmp_win->flags &= ~MAXIMIZED; /* Already checked this in functions.c, but its here too in case * there's a resize on initial placement. */ if(check_allowed_function2(F_RESIZE,tmp_win) == 0) { XBell(dpy, Scr.screen); return; } /* can't resize icons */ if(tmp_win->flags & ICONIFIED) return; ResizeWindow = tmp_win->frame; /* Change DrawGC line width according to window's border width */ gcv.line_width = tmp_win->boundary_width - 1; /*2;*/ XChangeGC(dpy, Scr.DrawGC, GCLineWidth, &gcv); if(n == 2) { dragWidth = val1*val1_unit/100; dragHeight = val2*val2_unit/100; dragWidth += (2*tmp_win->boundary_width); dragHeight += (tmp_win->title_height + 2*tmp_win->boundary_width); ConstrainSize (tmp_win, &dragWidth, &dragHeight); SetupFrame (tmp_win, tmp_win->frame_x, tmp_win->frame_y ,dragWidth, dragHeight,FALSE); ResizeWindow = None; return; } InstallRootColormap(); if (menuFromFrameOrWindowOrTitlebar) { /* warp the pointer to the cursor position from before menu appeared*/ /*XWarpPointer(dpy, None, Scr.Root, 0, 0, 0, 0, Stashed_X,Stashed_Y);*/ XFlush(dpy); } if(!GrabEm(MOVE)) { XBell(dpy,Scr.screen); return; } XGrabServer(dpy); /* handle problems with edge-wrapping while resizing */ flags = Scr.flags; Scr.flags &= ~(EdgeWrapX|EdgeWrapY); XGetGeometry(dpy, (Drawable) ResizeWindow, &JunkRoot, &dragx, &dragy, (unsigned int *)&dragWidth, (unsigned int *)&dragHeight, &JunkBW,&JunkDepth); XOffset = eventp->xbutton.x_root - dragx; YOffset = eventp->xbutton.y_root - dragy; dragx += tmp_win->bw; dragy += tmp_win->bw; origx = dragx; origy = dragy; origWidth = dragWidth; origHeight = dragHeight; ymotion=xmotion=0; /* pop up a resize dimensions window */ XMapRaised(dpy, Scr.SizeWindow); last_width = 0; last_height = 0; DisplaySize(tmp_win, origWidth, origHeight,True); /* Get the current position to determine which border to resize */ if((PressedW != Scr.Root)&&(PressedW != None)) { if(PressedW == tmp_win->sides[0]) /* top */ ymotion = 1; if(PressedW == tmp_win->sides[1]) /* right */ xmotion = -1; if(PressedW == tmp_win->sides[2]) /* bottom */ ymotion = -1; if(PressedW == tmp_win->sides[3]) /* left */ xmotion = 1; if(PressedW == tmp_win->corners[0]) /* upper-left */ { ymotion = 1; xmotion = 1; } if(PressedW == tmp_win->corners[1]) /* upper-right */ { xmotion = -1; ymotion = 1; } if(PressedW == tmp_win->corners[2]) /* lower left */ { ymotion = -1; xmotion = 1; } if(PressedW == tmp_win->corners[3]) /* lower right */ { ymotion = -1; xmotion = -1; } } if (ymotion == -1) YOffset = dragHeight - YOffset; if (xmotion == -1) XOffset = dragWidth - XOffset; /* draw the rubber-band window */ MoveOutline (Scr.Root, dragx - tmp_win->bw + tmp_win->boundary_width / 2, dragy - tmp_win->bw + tmp_win->boundary_width / 2, dragWidth + 2 * tmp_win->bw - tmp_win->boundary_width, dragHeight + 2 * tmp_win->bw - tmp_win->boundary_width); /* loop to resize */ while(!finished) { XMaskEvent(dpy, ButtonPressMask | ButtonReleaseMask | KeyPressMask | ButtonMotionMask | PointerMotionMask | ExposureMask, &Event); StashEventTime(&Event); if (Event.type == MotionNotify) /* discard any extra motion events before a release */ while(XCheckMaskEvent(dpy, ButtonMotionMask | ButtonReleaseMask | PointerMotionMask,&Event)) { StashEventTime(&Event); if (Event.type == ButtonRelease) break; } done = FALSE; /* Handle a limited number of key press events to allow mouseless * operation */ if(Event.type == KeyPress) Keyboard_shortcuts(&Event,ButtonRelease); switch(Event.type) { case ButtonPress: XAllowEvents(dpy,ReplayPointer,CurrentTime); case KeyPress: /* simple code to bag out of move - CKH */ if (XLookupKeysym(&(Event.xkey),0) == XK_Escape) { abort = TRUE; finished = TRUE; } done = TRUE; break; case ButtonRelease: finished = TRUE; done = TRUE; break; case MotionNotify: x = Event.xmotion.x_root; y = Event.xmotion.y_root; /* need to move the viewport */ HandlePaging(Scr.EdgeScrollX,Scr.EdgeScrollY,&x,&y, &delta_x,&delta_y,False); origx -= delta_x; origy -= delta_y; dragx -= delta_x; dragy -= delta_y; DoResize(x, y, tmp_win); done = TRUE; default: break; } if(!done) { MoveOutline(Scr.Root,0,0,0,0); DispatchEvent(); MoveOutline(Scr.Root, dragx - tmp_win->bw + tmp_win->boundary_width / 2, dragy - tmp_win->bw + tmp_win->boundary_width / 2, dragWidth + 2 * tmp_win->bw - tmp_win->boundary_width, dragHeight + 2 * tmp_win->bw - tmp_win->boundary_width); } } /* erase the rubber-band */ MoveOutline(Scr.Root, 0, 0, 0, 0); /* pop down the size window */ XUnmapWindow(dpy, Scr.SizeWindow); if(!abort) { ConstrainSize (tmp_win, &dragWidth, &dragHeight); SetupFrame (tmp_win, dragx - tmp_win->bw, dragy - tmp_win->bw, dragWidth, dragHeight, FALSE); } UninstallRootColormap(); ResizeWindow = None; XUngrabServer(dpy); UngrabEm(); xmotion = 0; ymotion = 0; Scr.flags |= flags & (EdgeWrapX|EdgeWrapY); return; } /*********************************************************************** * * Procedure: * DoResize - move the rubberband around. This is called for * each motion event when we are resizing * * Inputs: * x_root - the X corrdinate in the root window * y_root - the Y corrdinate in the root window * tmp_win - the current fvwm window * ************************************************************************/ void DoResize(int x_root, int y_root, FvwmWindow *tmp_win) { int action=0; /* resizing called from menu - find the border/corner the pointer first time collides with */ if((xmotion == 0) && (ymotion == 0)) { int ct; /* corner threshold */ if ((y_root <= origy) || (y_root >= origy + origHeight - 1)) { ct = origWidth >> 2; if (y_root <= origy) ymotion = 1; if (y_root >= origy + origHeight - 1) ymotion = -1; if (x_root <= origx + ct) xmotion = 1; if (x_root >= origx + origWidth - ct - 1) xmotion = -1; } else if ((x_root <= origx) || (x_root >= origx + origWidth - 1)) { ct = origHeight >> 2; if (x_root <= origx) xmotion = 1; if (x_root >= origx + origWidth - 1) xmotion = -1; if (y_root <= origy + ct) ymotion = 1; if (y_root >= origy + origHeight - ct - 1) ymotion = -1; } XOffset = x_root - dragx; YOffset = y_root - dragy; if (ymotion == -1) YOffset = dragHeight - YOffset; if (xmotion == -1) XOffset = dragWidth - XOffset; } if ((ymotion == 1)&&(y_root < origy+origHeight-1)) { dragy = y_root - YOffset; dragHeight = origy + origHeight - y_root + YOffset; action = 1; } else if ((ymotion == -1)&&(y_root > origy)) { dragy = origy; dragHeight = 1 + y_root - dragy + YOffset; action = 1; } if ((xmotion == 1)&&(x_root < origx + origWidth - 1)) { dragx = x_root - XOffset; dragWidth = origx + origWidth - x_root + XOffset; action = 1; } if ((xmotion == -1)&&(x_root > origx)) { dragx = origx; dragWidth = 1 + x_root - origx + XOffset; action = 1; } if (action) { ConstrainSize (tmp_win, &dragWidth, &dragHeight); if (xmotion == 1) dragx = origx + origWidth - dragWidth; if (ymotion == 1) dragy = origy + origHeight - dragHeight; MoveOutline(Scr.Root, dragx - tmp_win->bw + tmp_win->boundary_width / 2, dragy - tmp_win->bw + tmp_win->boundary_width / 2, dragWidth + 2 * tmp_win->bw - tmp_win->boundary_width, dragHeight + 2 * tmp_win->bw - tmp_win->boundary_width); } DisplaySize(tmp_win, dragWidth, dragHeight,False); } /*********************************************************************** * * Procedure: * DisplaySize - display the size in the dimensions window * * Inputs: * tmp_win - the current fvwm window * width - the width of the rubber band * height - the height of the rubber band * ***********************************************************************/ void DisplaySize(FvwmWindow *tmp_win, int width, int height,Bool Init) { char str[100]; int dwidth,dheight,offset; if (last_width == width && last_height == height) return; last_width = width; last_height = height; dheight = height - tmp_win->title_height - 2*tmp_win->boundary_width; dwidth = width - 2*tmp_win->boundary_width; dwidth -= tmp_win->hints.base_width; dheight -= tmp_win->hints.base_height; dwidth /= tmp_win->hints.width_inc; dheight /= tmp_win->hints.height_inc; (void) sprintf (str, " %4d x %-4d ", dwidth, dheight); offset = (Scr.SizeStringWidth + SIZE_HINDENT*2 - XTextWidth(Scr.StdFont.font,str,strlen(str)))/2; if(Init) { XClearWindow(dpy,Scr.SizeWindow); if(Scr.d_depth >= 2) RelieveWindow(tmp_win, Scr.SizeWindow,0,0,Scr.SizeStringWidth+ SIZE_HINDENT*2, Scr.StdFont.height + SIZE_VINDENT*2, Scr.WinReliefGC,Scr.WinShadowGC,FULL_HILITE); } else { XClearArea(dpy,Scr.SizeWindow,SIZE_HINDENT,SIZE_VINDENT,Scr.SizeStringWidth, Scr.StdFont.height,False); } #ifdef I18N #undef FONTSET #define FONTSET Scr.StdFont.fontset #endif XDrawString (dpy, Scr.SizeWindow, Scr.WinGC, offset, Scr.StdFont.font->ascent + SIZE_VINDENT, str, 13); } /*********************************************************************** * * Procedure: * ConstrainSize - adjust the given width and height to account for the * constraints imposed by size hints * * The general algorithm, especially the aspect ratio stuff, is * borrowed from uwm's CheckConsistency routine. * ***********************************************************************/ void ConstrainSize (FvwmWindow *tmp_win, int *widthp, int *heightp) { #define makemult(a,b) ((b==1) ? (a) : (((int)((a)/(b))) * (b)) ) #define _min(a,b) (((a) < (b)) ? (a) : (b)) int minWidth, minHeight, maxWidth, maxHeight, xinc, yinc, delta; int baseWidth, baseHeight; int dwidth = *widthp, dheight = *heightp; dwidth -= 2 *tmp_win->boundary_width; dheight -= (tmp_win->title_height + 2*tmp_win->boundary_width); minWidth = tmp_win->hints.min_width; minHeight = tmp_win->hints.min_height; baseWidth = tmp_win->hints.base_width; baseHeight = tmp_win->hints.base_height; maxWidth = tmp_win->hints.max_width; maxHeight = tmp_win->hints.max_height; /* maxWidth = Scr.VxMax + Scr.MyDisplayWidth; maxHeight = Scr.VyMax + Scr.MyDisplayHeight;*/ xinc = tmp_win->hints.width_inc; yinc = tmp_win->hints.height_inc; /* * First, clamp to min and max values */ if (dwidth < minWidth) dwidth = minWidth; if (dheight < minHeight) dheight = minHeight; if (dwidth > maxWidth) dwidth = maxWidth; if (dheight > maxHeight) dheight = maxHeight; /* * Second, fit to base + N * inc */ dwidth = ((dwidth - baseWidth) / xinc * xinc) + baseWidth; dheight = ((dheight - baseHeight) / yinc * yinc) + baseHeight; /* * Third, adjust for aspect ratio */ #define maxAspectX tmp_win->hints.max_aspect.x #define maxAspectY tmp_win->hints.max_aspect.y #define minAspectX tmp_win->hints.min_aspect.x #define minAspectY tmp_win->hints.min_aspect.y /* * The math looks like this: * * minAspectX dwidth maxAspectX * ---------- <= ------- <= ---------- * minAspectY dheight maxAspectY * * If that is multiplied out, then the width and height are * invalid in the following situations: * * minAspectX * dheight > minAspectY * dwidth * maxAspectX * dheight < maxAspectY * dwidth * */ if (tmp_win->hints.flags & PAspect) { if ((minAspectX * dheight > minAspectY * dwidth)&&(xmotion == 0)) { /* Change width to match */ delta = makemult(minAspectX * dheight / minAspectY - dwidth, xinc); if (dwidth + delta <= maxWidth) dwidth += delta; } if (minAspectX * dheight > minAspectY * dwidth) { delta = makemult(dheight - dwidth*minAspectY/minAspectX, yinc); if (dheight - delta >= minHeight) dheight -= delta; else { delta = makemult(minAspectX*dheight / minAspectY - dwidth, xinc); if (dwidth + delta <= maxWidth) dwidth += delta; } } if ((maxAspectX * dheight < maxAspectY * dwidth)&&(ymotion == 0)) { delta = makemult(dwidth * maxAspectY / maxAspectX - dheight, yinc); if (dheight + delta <= maxHeight) dheight += delta; } if ((maxAspectX * dheight < maxAspectY * dwidth)) { delta = makemult(dwidth - maxAspectX*dheight/maxAspectY, xinc); if (dwidth - delta >= minWidth) dwidth -= delta; else { delta = makemult(dwidth * maxAspectY / maxAspectX - dheight, yinc); if (dheight + delta <= maxHeight) dheight += delta; } } } /* * Fourth, account for border width and title height */ *widthp = dwidth + 2*tmp_win->boundary_width; *heightp = dheight + tmp_win->title_height + 2*tmp_win->boundary_width; return; } /*********************************************************************** * * Procedure: * MoveOutline - move a window outline * * Inputs: * root - the window we are outlining * x - upper left x coordinate * y - upper left y coordinate * width - the width of the rectangle * height - the height of the rectangle * ***********************************************************************/ void MoveOutline(Window root, int x, int y, int width, int height) { static int lastx = 0; static int lasty = 0; static int lastWidth = 0; static int lastHeight = 0; /* XRectangle rects[5]; */ if (x == lastx && y == lasty && width == lastWidth && height == lastHeight) return; /* undraw the old one, if any */ if (lastWidth || lastHeight) { /* rects[0].x = lastx; rects[0].y = lasty; rects[0].width = lastWidth; rects[0].height = lastHeight; rects[1].x = lastx+1; rects[1].y = lasty+1; rects[1].width = lastWidth-2; rects[1].height = lastHeight-2; rects[2].x = lastx+2; rects[2].y = lasty+2; rects[2].width = lastWidth-4; rects[2].height = lastHeight-4; rects[3].x = lastx+3; rects[3].y = lasty+3 + (lastHeight-6)/3; rects[3].width = lastWidth-6; rects[3].height = (lastHeight-6)/3; rects[4].x = lastx+3 + (lastWidth-6)/3; rects[4].y = lasty+3; rects[4].width = (lastWidth-6)/3; rects[4].height = (lastHeight-6); XDrawRectangles(dpy,Scr.Root,Scr.DrawGC,rects,5); */ XDrawRectangle(dpy, Scr.Root, Scr.DrawGC, lastx, lasty, lastWidth, lastHeight); } lastx = x; lasty = y; lastWidth = width; lastHeight = height; /* draw the new one, if any */ if (lastWidth || lastHeight) { /* rects[0].x = lastx; rects[0].y = lasty; rects[0].width = lastWidth; rects[0].height = lastHeight; rects[1].x = lastx+1; rects[1].y = lasty+1; rects[1].width = lastWidth-2; rects[1].height = lastHeight-2; rects[2].x = lastx+2; rects[2].y = lasty+2; rects[2].width = lastWidth-4; rects[2].height = lastHeight-4; rects[3].x = lastx+3; rects[3].y = lasty+3 + (lastHeight-6)/3; rects[3].width = lastWidth-6; rects[3].height = (lastHeight-6)/3; rects[4].x = lastx+3 + (lastWidth-6)/3; rects[4].y = lasty+3; rects[4].width = (lastWidth-6)/3; rects[4].height = (lastHeight-6); XDrawRectangles(dpy,Scr.Root,Scr.DrawGC,rects,5); */ XDrawRectangle(dpy, Scr.Root, Scr.DrawGC, lastx, lasty, lastWidth, lastHeight); } }