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top - metrics - downloadIndex: T V
Length: 22816 (0x5920)
Types: TextFile
Names: »V«
└─⟦85b835f43⟧ Bits:30000549 8mm tape, Rational 1000, Xlib rev 6.00
└─⟦0c20f784e⟧ »DATA«
└─⟦1abbe589f⟧
└─⟦059497ac5⟧
└─⟦this⟧
with Xlbt_Arithmetic;
use Xlbt_Arithmetic;
with Xlbt_Basic;
use Xlbt_Basic;
with Xlbt_Gc;
use Xlbt_Gc;
with Xlbt_Graphics;
use Xlbt_Graphics;
package Xlbp_Gc is
------------------------------------------------------------------------------
-- X Library Graphic Context
--
-- Xlbp_Gc - Create and maintain Graphic Contexts
------------------------------------------------------------------------------
-- Copyright 1989 - 1991 by Rational, Santa Clara, California.
-- Copyright 1985 - 1989 by the Massachusetts Institute of Technology
--
-- All Rights Reserved.
--
-- Permission to use, copy, modify, and distribute this software and its
-- documentation for any purpose and without fee is hereby granted,
-- provided that the above copyright notice(s) appear in all copies and that
-- both that copyright notice(s) and this permission notice appear in
-- supporting documentation, and that the names of MIT or Rational not be
-- used in advertising or publicity pertaining to distribution of the software
-- without specific, written prior permission.
--
-- MIT and Rational disclaim all warranties with regard to this software,
-- including all implied warranties of merchantability and fitness, in no
-- event shall MIT or Rational be liable for any special, indirect or
-- consequential damages or any damages whatsoever resulting from loss of use,
-- data or profits, whether in an action of contract, negligence or other
-- tortious action, arising out of or in connection with the use or performance
-- of this software.
------------------------------------------------------------------------------
--\f
procedure X_Change_Gc (Display : X_Display;
Gc : X_Gc;
Values_Mask : X_Gc_Components;
Values : X_Gc_Values);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Gc - Specifies which graphic context to change.
-- Values_Mask - Specifies which components of Values to set in Gc.
-- Values - Specifies the new component values for Gc.
--
-- Changes those components in Gc as specified by Values_Mask to match the
-- corresponding Values components.
------------------------------------------------------------------------------
procedure X_Copy_Gc (Display : X_Display;
Source_Gc : X_Gc;
Values_Mask : X_Gc_Components;
Destination_Gc : X_Gc);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Source_Gc - Specifies the source graphic context.
-- Values_Mask - Specifies which components of the Source_Gc to copy.
-- Destination_Gc - Specifies and returns the Gc which is to receive the
-- components.
--
-- Copies the components of Source_Gc specified by Mask into Destination_Gc.
------------------------------------------------------------------------------
function X_Create_Gc (Display : X_Display;
Drawable : X_Drawable;
Values_Mask : X_Gc_Components;
Values : X_Gc_Values) return X_Gc;
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Drawable - Specifies the drawable to use.
-- Values_Mask - Specifies which components of Values to use in the creation.
-- Values - Specifies various values to be used in creating the X_Gc.
--
-- Creates a new graphic context and returns the X_Gc that corresponds to it.
------------------------------------------------------------------------------
procedure X_Free_Gc (Display : X_Display;
Gc : in out X_Gc);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Gc - Specifies the GC that is to be destroyed.
--
-- Destroys the specified graphics context.
------------------------------------------------------------------------------
function X_G_Context_From_Gc (Gc : X_Gc) return X_G_Context;
------------------------------------------------------------------------------
-- Gc - Specifies the graphics context to use.
--
-- Returns the graphics context ID associated with the X_Gc.
------------------------------------------------------------------------------
procedure X_Get_Gc_Values (Display : X_Display;
Gc : X_Gc;
Values_Mask : X_Gc_Components;
Values : out X_Gc_Values;
Status : out X_Status);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Gc - Specifies the graphics context to use.
-- Values_Mask - Specifies what values to return
-- Values - Receives the values returned
-- Status - Receives Successful if all values were returned, Failed if
-- some values were not returned
--
-- Called to obtain some values from those that make up a GC. Can return all
-- GC fields except Gc_Clip_Mask and Gc_Dash_List.
------------------------------------------------------------------------------
procedure X_Query_Best_Size (Display : X_Display;
Class : X_Best_Size_Class;
Drawable : X_Drawable;
Width : U_Short;
Height : U_Short;
Best_Width : out U_Short;
Best_Height : out U_Short;
Status : out X_Status);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Class - Specifies the class of object whose sizes we want.
-- Drawable - Specifies (indirectly) the screen being queried.
-- Width - Specifies the width, in pixels, which we would like.
-- Height - Specifies the height, in pixels, which we would like.
-- Best_Width - Receives the best or closest width, in pixels, to Width.
-- Best_Height - Receives the best or closest heigh, in pixels, to Height.
-- Status - Receives Successful or Failed.
--
-- Queries the server to discover the best or closest size to some desired
-- size of some class of drawable object. The Best_Width/Height returned
-- indicates the size most supported by the server that is the best or closest
-- fit to the desired size.
------------------------------------------------------------------------------
procedure X_Query_Best_Stipple (Display : X_Display;
Drawable : X_Drawable;
Width : U_Short;
Height : U_Short;
Best_Width : out U_Short;
Best_Height : out U_Short;
Status : out X_Status);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Drawable - Specifies (indirectly) the screen being queried.
-- Width - Specifies the width, in pixels, which we would like.
-- Height - Specifies the height, in pixels, which we would like.
-- Best_Width - Receives the best or closest width, in pixels, to Width.
-- Best_Height - Receives the best or closest heigh, in pixels, to Height.
-- Status - Receives Successful or Failed.
--
-- Queries the server to discover the best or closest size to some desired
-- size of stipple. The Best_Width/Height returned indicates the size most
-- supported by the server that is the best or closest fit to the desired size.
------------------------------------------------------------------------------
procedure X_Query_Best_Tile (Display : X_Display;
Drawable : X_Drawable;
Width : U_Short;
Height : U_Short;
Best_Width : out U_Short;
Best_Height : out U_Short;
Status : out X_Status);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Drawable - Specifies (indirectly) the screen being queried.
-- Width - Specifies the width, in pixels, which we would like.
-- Height - Specifies the height, in pixels, which we would like.
-- Best_Width - Receives the best or closest width, in pixels, to Width.
-- Best_Height - Receives the best or closest heigh, in pixels, to Height.
-- Status - Receives Successful or Failed.
--
-- Queries the server to discover the best or closest size to some desired
-- size of tile. The Best_Width/Height returned indicates the size most
-- supported by the server that is the best or closest fit to the desired size.
------------------------------------------------------------------------------
procedure X_Set_Arc_Mode (Display : X_Display;
Gc : X_Gc;
Arc_Mode : X_Arc_Mode);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Gc - Specifies the graphics context to use.
-- Arc_Mode - Specifies the arc mode to use.
--
-- Set the arc mode to use in the graphics context.
------------------------------------------------------------------------------
procedure X_Set_Background (Display : X_Display;
Gc : X_Gc;
Background : X_Pixel);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Gc - Specifies the graphics context to use.
-- Background - Specifies the new background pixel to use.
--
-- Sets the pixel value to use in future graphics operations using this
-- graphics context.
------------------------------------------------------------------------------
procedure X_Set_Clip_Mask (Display : X_Display;
Gc : X_Gc;
Mask : X_Pixmap);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Gc - Specifies the graphics context to use.
-- Mask - Specifies the clip mask to use.
--
-- Sets the clip mask for the graphics context.
------------------------------------------------------------------------------
procedure X_Set_Clip_Origin (Display : X_Display;
Gc : X_Gc;
X : S_Short;
Y : S_Short);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Gc - Specifies the graphics context to use.
-- X - Specifies the X coordinate for the clip origin.
-- Y - Specifies the Y coordinate for the clip origin.
--
-- Sets the clip origin for the graphics context.
------------------------------------------------------------------------------
procedure X_Set_Clip_Rectangles (Display : X_Display;
Gc : X_Gc;
X : S_Short;
Y : S_Short;
Rectangles : X_Rectangle_Array;
Ordering : X_Clip_Ordering);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Gc - Specifies the graphics context to use.
-- X - Specifies the X coordinate for the clip origin.
-- Y - Specifies the Y coordinate for the clip origin.
-- Rectangles - Specifies the clipping rectangles.
-- Ordering - Specifies the clip ordering to use.
--
-- Sets the clip mask for the graphics context.
------------------------------------------------------------------------------
procedure X_Set_Dashes (Display : X_Display;
Gc : X_Gc;
Dash_Offset : U_Short;
Dash_List : U_Char_Array);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Gc - Specifies the graphics context to use.
-- Dash_Offset - Specifies the phase of the pattern for the dashed line style
-- being set.
-- Dash_List - Specifies the dash list for the dashed line style.
--
-- Sets the Dash_Offset and the Dash_List
------------------------------------------------------------------------------
procedure X_Set_Fill_Rule (Display : X_Display;
Gc : X_Gc;
Fill_Rule : X_Fill_Rule);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Gc - Specifies the graphics context to use.
-- Fill_Rule - Specifies the fill rule to use.
--
-- Sets the fill rule in use with the graphics context.
------------------------------------------------------------------------------
procedure X_Set_Fill_Style (Display : X_Display;
Gc : X_Gc;
Fill_Style : X_Fill_Style);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Gc - Specifies the graphics context to use.
-- Fill_Style - Specifies the fill style to use.
--
-- Sets the fill style in use with the graphics context.
------------------------------------------------------------------------------
procedure X_Set_Font (Display : X_Display;
Gc : X_Gc;
Font : X_Font);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Gc - Specifies the graphics context to use.
-- Font - Specifies the font to use.
--
-- Sets the font in use in a graphics context.
------------------------------------------------------------------------------
procedure X_Set_Foreground (Display : X_Display;
Gc : X_Gc;
Foreground : X_Pixel);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Gc - Specifies the graphics context to use.
-- Foreground - Specifies the new foreground pixel to use.
--
-- Sets the pixel value to use in future graphics operations using this
-- graphics context.
------------------------------------------------------------------------------
procedure X_Set_Function (Display : X_Display;
Gc : X_Gc;
Funct : X_Graphic_Function);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Gc - Specifies the graphics context to use.
-- Funct - Specifies the new graphic function to use.
--
-- Sets the graphic function to use in future graphics operations using this
-- graphics context.
------------------------------------------------------------------------------
procedure X_Set_Graphics_Exposures
(Display : X_Display;
Gc : X_Gc;
Graphics_Exposures : Boolean);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Gc - Specifies the graphics context to use.
-- Graphics_Exposures - Specifies True if Graphics_Expose events are desired.
--
-- Sets the Graphics_Exposures flag in the graphics context.
------------------------------------------------------------------------------
procedure X_Set_Line_Attributes (Display : X_Display;
Gc : X_Gc;
Line_Width : U_Short;
Line_Style : X_Line_Style;
Cap_Style : X_Cap_Style;
Join_Style : X_Join_Style);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Gc - Specifies the graphics context to use.
-- Line_Width - Specifies the line width to use.
-- Line_Style - Specifies the line style to use.
-- Cap_Style - Specifies the cap style to use when terminating lines.
-- Join_Style - Specifies the join style to use when joining line ends.
--
-- Sets all of these things in the graphics context. These values will take
-- effect in all successive uses of the X_Gc.
------------------------------------------------------------------------------
procedure X_Set_Plane_Mask (Display : X_Display;
Gc : X_Gc;
Plane_Mask : X_Plane_Mask);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Gc - Specifies the graphics context to use.
-- Plane_Mask - Specifies the new plane mask to use.
--
-- Sets the plane mask to use in future graphics operations using this
-- graphics context.
------------------------------------------------------------------------------
procedure X_Set_State (Display : X_Display;
Gc : X_Gc;
Foreground : X_Pixel;
Background : X_Pixel;
Funct : X_Graphic_Function;
Plane_Mask : X_Plane_Mask);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Gc - Specifies the graphics context to use.
-- Foreground - Specifies the new foreground pixel to use.
-- Background - Specifies the new background pixel to use.
-- Funct - Specifies the new graphic function to use.
-- Plane_Mask - Specifies the new plane mask to use.
--
-- Sets all of these things in the graphics context. These values will take
-- effect in all successive uses of the X_Gc.
------------------------------------------------------------------------------
procedure X_Set_Stipple (Display : X_Display;
Gc : X_Gc;
Stipple : X_Pixmap);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Gc - Specifies the graphics context to use.
-- Stipple - Specifies the pixmap to use for stippling.
--
-- Set the stippling for the graphics context.
------------------------------------------------------------------------------
procedure X_Set_Subwindow_Mode (Display : X_Display;
Gc : X_Gc;
Subwindow_Mode : X_Subwindow_Mode);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Gc - Specifies the graphics context to use.
-- Subwindow_Mode - Specifies the subwindow clip mode to use.
--
-- Specifies the subwindow clip mode to use in the graphics context.
------------------------------------------------------------------------------
procedure X_Set_Tile (Display : X_Display;
Gc : X_Gc;
Tile : X_Pixmap);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Gc - Specifies the graphics context to use.
-- Tile - Specifies the pixmap to use for fill tiling.
--
-- Set the fill tile for the graphics context.
------------------------------------------------------------------------------
procedure X_Set_Ts_Origin (Display : X_Display;
Gc : X_Gc;
X : S_Short;
Y : S_Short);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Gc - Specifies the graphics context to use.
-- X - Specifies the X coordinate for tiling/stippling.
-- Y - Specifies the Y coordinate for tiling/stippling.
--
-- Set the tile/stipple origin for the graphics context.
------------------------------------------------------------------------------
--\f
------------------------------------------------------------------------------
-- Special interfaces for X Library Extension builders.
------------------------------------------------------------------------------
procedure Private_X_Flush_Gc (Display : X_Display;
Gc : X_Gc);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Gc - Specifies the GC to flush.
--
-- Flush any pending GC changes to the display.
-- **Only call this when the display is locked.**
------------------------------------------------------------------------------
procedure Private_X_Flush_Gc_Cache
(Display : X_Display;
Gc : X_Gc) renames Private_X_Flush_Gc;
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Gc - Specifies the GC to flush.
--
-- Flush any pending GC changes to the display.
-- **Only call this when the display is locked.**
------------------------------------------------------------------------------
--\f
end Xlbp_Gc;