138 lines
3.1 KiB
C
138 lines
3.1 KiB
C
/* grTCairo4.c -
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*
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* Copyright 2017 Open Circuit Design
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*
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* This file contains functions to manage the graphics tablet associated
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* with the X display.
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*
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* Written by Chuan Chen
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*/
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#include <signal.h>
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#include <stdio.h>
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#include <X11/Xlib.h>
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#include <cairo/cairo-xlib.h>
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#include "tcltk/tclmagic.h"
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#include "utils/magic.h"
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#include "utils/magsgtty.h"
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#include "textio/textio.h"
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#include "utils/geometry.h"
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#include "windows/windows.h"
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#include "graphics/graphics.h"
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#include "graphics/graphicsInt.h"
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#include "graphics/grTkCommon.h"
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#include "textio/txcommands.h"
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#include "grTCairoInt.h"
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extern Display *grXdpy;
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/*---------------------------------------------------------
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* GrTCairoDisableTablet:
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* Turns off the cursor.
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*
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* Results: None.
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*
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* Side Effects: None.
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*---------------------------------------------------------
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*/
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void
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GrTCairoDisableTablet ()
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{
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/* (Unimplemented) */
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}
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/*---------------------------------------------------------
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* GrTCairoEnableTablet:
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* This routine enables the graphics tablet.
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*
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* Results:
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* None.
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*
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* Side Effects:
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* Simply turn on the crosshair.
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*---------------------------------------------------------
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*/
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void
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GrTCairoEnableTablet ()
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{
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/* (Unimplemented) */
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}
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/*
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* ----------------------------------------------------------------------------
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* grtcairoGetCursorPos:
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* Read the cursor position in magic coordinates.
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*
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* Results:
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* TRUE is returned if the coordinates were succesfully read, FALSE
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* otherwise.
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*
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* Side effects:
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* The parameter is filled in with the cursor position, in the form of
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* a point in screen coordinates.
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* ----------------------------------------------------------------------------
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*/
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bool
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grtcairoGetCursorPos (mw, p)
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MagWindow *mw; /* window for which result is given */
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Point *p; /* point to be filled in with screen coordinates */
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{
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int x, y, x1, y1;
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unsigned int buttons;
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Window win1, win2;
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if (mw == (MagWindow *)NULL) mw = tcairoCurrent.mw;
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XQueryPointer(grXdpy, Tk_WindowId((Tk_Window)(mw->w_grdata)),
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&win1, &win2, &x1, &y1,
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&x, &y, &buttons);
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p->p_x = x;
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p->p_y = grXtransY(mw, y);
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return TRUE;
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}
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/*
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* ----------------------------------------------------------------------------
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* grtcairoGetCursorRootPos:
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* Read the cursor position in sreen root coordinates.
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*
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* Results:
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* TRUE is returned if the coordinates were succesfully read, FALSE
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* otherwise.
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*
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* Side effects:
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* The parameter is filled in with the cursor position, in the form of
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* a point in screen coordinates.
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* ----------------------------------------------------------------------------
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*/
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bool
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grtcairoGetCursorRootPos (mw, p)
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MagWindow *mw; /* window for which result is given */
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Point *p; /* point to be filled in with screen coordinates */
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{
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int x, y, x1, y1;
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unsigned int buttons;
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Window win1, win2;
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if (mw == (MagWindow *)NULL) mw = tcairoCurrent.mw;
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XQueryPointer(grXdpy, Tk_WindowId((Tk_Window)(mw->w_grdata)),
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&win1, &win2, &x1, &y1,
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&x, &y, &buttons);
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p->p_x = x1;
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p->p_y = y1;
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return TRUE;
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}
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