siemens-rtl/twin_rsz.c
2023-07-11 14:40:13 +02:00

548 lines
19 KiB
C

#ifndef lint
static char sccs_id[] = "@(#)twin_rsz.c 5.3 9/1/88";
#endif
/*
* Copyright 1988 by Siemens Research and Technology Laboratories, Princeton, NJ
*
* 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 appear in all copies and that
* both that copyright notice and this permission notice appear in
* supporting documentation, and that the name of Siemens Research and Technology
* Laboratories not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior permission.
*
*
* SIEMENS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
* SIEMENS 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.
*/
#include "copyright.h"
#include "basetype.h"
#include "twinD.h"
#include "state.h"
#include "trial.h"
#include "commit.h"
#include "win.h"
#include "gravity.h"
extern bool Tilwin_Open_Best_In_Area();
extern TWRectangle desktop_rect;
bool
Tilwin_Check_Resize(winp, adr_pt, dir, min_size, max_size)
Tilwinp winp;
TWPoint *adr_pt;
Side dir;
Size min_size,
max_size;
{
Tilwin *twinp = (Tilwin *)winp;
TWRectangle rect,
grect;
/* check incoming sizes (the points are check when adjusted
* for gravity)
*/
if (Is_Odd_Number(Get_Width(min_size)) == TRUE)
Get_Width(min_size)++;
if (Is_Odd_Number(Get_Height(min_size)) == TRUE)
Get_Height(min_size)++;
if (Is_Odd_Number(Get_Width(max_size)) == TRUE)
Get_Width(max_size)++;
if (Is_Odd_Number(Get_Height(max_size)) == TRUE)
Get_Height(max_size)++;
/* if the window is open, remove it's edges from the gravity lists so they
* don't interfere with the placement
*/
if (Tilwin_Is_Open(twinp) == TRUE){
grect = Tilwin_Get_Rectangle(twinp);
Gravity_Delete_Edge(Get_LeftX(grect), Left);
Gravity_Delete_Edge(Get_RightX(grect), Right);
Gravity_Delete_Edge(Get_TopY(grect), Top);
Gravity_Delete_Edge(Get_BottomY(grect), Bottom);
}
rect = Tilwin_Get_Rectangle(twinp);
if (dir == Left || dir == Top_Left || dir == Bottom_Left)
Get_LeftX(rect) = Get_PtX(*adr_pt);
else if (dir == Right || dir == Top_Right || dir == Bottom_Right)
Get_RightX(rect) = Get_PtX(*adr_pt);
if (dir == Top || dir == Top_Left || dir == Top_Right)
Get_TopY(rect) = Get_PtY(*adr_pt);
else if (dir == Bottom || dir == Bottom_Left || dir == Bottom_Right)
Get_BottomY(rect) = Get_PtY(*adr_pt);
(void) Trial_Place(&rect, dir, min_size, max_size);
if (dir == Left || dir == Top_Left || dir == Bottom_Left)
Get_PtX(*adr_pt) = Get_LeftX(rect);
else if (dir == Right || dir == Top_Right || dir == Bottom_Right)
Get_PtX(*adr_pt) = Get_RightX(rect);
if (dir == Top || dir == Top_Left || dir == Top_Right)
Get_PtY(*adr_pt) = Get_TopY(rect);
else if (dir == Bottom || dir == Bottom_Left || dir == Bottom_Right)
Get_PtY(*adr_pt) = Get_BottomY(rect);
if (Tilwin_Is_Open(twinp) == TRUE){
Gravity_Insert_Edge(Get_LeftX(grect), Left);
Gravity_Insert_Edge(Get_RightX(grect), Right);
Gravity_Insert_Edge(Get_TopY(grect), Top);
Gravity_Insert_Edge(Get_BottomY(grect), Bottom);
}
return(TRUE);
}
#define SWAP_VALUE(option, value, hold)\
{\
hold = Tilwin_Get_Window_Option(winp, option);\
Tilwin_Set_Window_Option(winp, option, value);\
}
bool
Tilwin_Resize(winp, siz, dir)
Tilwinp winp;
Size siz;
Side dir;
{
Tilwin *twinp = (Tilwin *)winp;
TWRectangle rect,
desired_rect,
current_rect;
TWPoint best_pt,
pt;
Side width_side,
height_side;
bool fixed_width, fixed_height,
old_left, old_right, old_top, old_bottom,
ret_val;
Size size,
org_size;
/* check to make sure siz width and height are even */
if (Is_Odd_Number(Get_Width(siz)) == TRUE)
Get_Width(siz)--;
if (Is_Odd_Number(Get_Height(siz)) == TRUE)
Get_Height(siz)--;
rect = Tilwin_Get_Rectangle(twinp);
switch (dir){
case Left:
Get_LeftX(rect) = Get_RightX(rect) - (Get_Width(siz) - 1);
break;
case Right:
Get_RightX(rect) = Get_LeftX(rect) + (Get_Width(siz) - 1);
break;
case Top:
Get_TopY(rect) = Get_BottomY(rect) - (Get_Height(siz) - 1);
break;
case Bottom:
Get_BottomY(rect) = Get_TopY(rect) + (Get_Height(siz) - 1);
break;
case Top_Left:
Get_TopY(rect) = Get_BottomY(rect) - (Get_Height(siz) - 1);
Get_LeftX(rect) = Get_RightX(rect) - (Get_Width(siz) - 1);
break;
case Top_Right:
Get_TopY(rect) = Get_BottomY(rect) - (Get_Height(siz) - 1);
Get_RightX(rect) = Get_LeftX(rect) + (Get_Width(siz) - 1);
break;
case Bottom_Left:
Get_BottomY(rect) = Get_TopY(rect) + (Get_Height(siz) - 1);
Get_LeftX(rect) = Get_RightX(rect) - (Get_Width(siz) - 1);
break;
case Bottom_Right:
Get_BottomY(rect) = Get_TopY(rect) + (Get_Height(siz) - 1);
Get_RightX(rect) = Get_LeftX(rect) + (Get_Width(siz) - 1);
break;
default:
return(FALSE);
}
width_side = height_side = NoSide;
/* check horizontal rectangle */
if (dir != Top && dir != Bottom){
fixed_width = Tilwin_Get_Window_Option(twinp, FIXED_SIZE) ||
Tilwin_Get_Window_Option(twinp, FIXED_WIDTH);
/* check to make sure the point is on the desktop */
if (Get_LeftX(rect) < Get_LeftX(desktop_rect)){
if (fixed_width)
return(FALSE);
else
Get_LeftX(rect) = Get_LeftX(desktop_rect);
}
else if (Get_RightX(rect) > Get_RightX(desktop_rect)){
if (fixed_width)
return(FALSE);
else
Get_RightX(rect) = Get_RightX(desktop_rect);
}
/* compute the horizontal rectangle of the resized window */
if (dir == Left || dir == Top_Left || dir == Bottom_Left){
width_side = Left;
}
else if (dir == Right || dir == Top_Right || dir == Bottom_Right){
width_side = Right;
}
/* if the width is fixed and that width does not satisfy min/max
* requirements, fail
*/
if (fixed_width == TRUE){
COMPUTE_SIZE(rect, size);
org_size = size;
if (Trial_Satisfied(twinp, &size) == FALSE)
if (Get_Width(size) != Get_Width(org_size))
return(FALSE);
}
/* else call Trial_Place to adjust the new point wrt gravity and make
* sure the windows min/max are satisfied
*/
else{
(void) Trial_Place(&rect, width_side, Tilwin_Get_Min(twinp),
Tilwin_Get_Max(twinp));
/* make sure that adjustments did not push the rectangle off of the
* desktop
*/
if (Get_LeftX(rect) < Get_LeftX(desktop_rect) ||
Get_RightX(rect) > Get_RightX(desktop_rect))
return(FALSE);
if (width_side == Left)
Get_PtX(pt) = Get_LeftX(rect);
else
Get_PtX(pt) = Get_RightX(rect);
}
}
/* check vertical rectangle */
if (dir != Left && dir != Right){
fixed_height = Tilwin_Get_Window_Option(twinp, FIXED_SIZE) ||
Tilwin_Get_Window_Option(twinp, FIXED_HEIGHT);
/* check to make sure the point is on the desktop */
if (Get_TopY(rect) < Get_TopY(desktop_rect)){
if (fixed_height)
return(FALSE);
else
Get_TopY(rect) = Get_TopY(desktop_rect);
}
else if (Get_BottomY(rect) > Get_BottomY(desktop_rect)){
if (fixed_height)
return(FALSE);
else
Get_BottomY(rect) = Get_BottomY(desktop_rect);
}
/* compute the vertical rectangle of the resized window */
if (dir == Top || dir == Top_Left || dir == Top_Right){
height_side = Top;
}
else if (dir == Bottom || dir == Bottom_Left || dir == Bottom_Right){
height_side = Bottom;
}
/* if the height is fixed and that height does not satisfy min/max
* requirements, fail
*/
if (fixed_height == TRUE){
COMPUTE_SIZE(rect, size);
org_size = size;
if (Trial_Satisfied(twinp, &size) == FALSE)
if (Get_Height(size) != Get_Height(org_size))
return(FALSE);
}
/* else call Trial_Place to adjust the new point wrt gravity and make
* sure the windows min/max are satisfied
*/
else{
(void) Trial_Place(&rect, height_side, Tilwin_Get_Min(twinp),
Tilwin_Get_Max(twinp));
/* make sure that adjustments did not push the rectangle off of the
* desktop
*/
if (Get_TopY(rect) < Get_TopY(desktop_rect) ||
Get_BottomY(rect) > Get_BottomY(desktop_rect))
return(FALSE);
if (height_side == Top)
Get_PtY(pt) = Get_TopY(rect);
else
Get_PtY(pt) = Get_BottomY(rect);
}
}
desired_rect = rect; /* rectangle to be used if we are to an open */
current_rect = Tilwin_Get_Rectangle(twinp); /* rectangle for resizes */
best_pt = pt;
switch (dir) {
case Left:
/* if the size or width is fixed, we are in an "all or nothing" case,
* therefore just do an open
*/
if (fixed_width == TRUE)
ret_val = Trial_Open(twinp, desired_rect, State_Get_Timestamp());
/* else try to resize in the specified direction the window as much
* as possible
*/
else{
(void) Trial_Grow(twinp, current_rect, dir, &best_pt, State_Get_Timestamp());
Get_LeftX(current_rect) = Get_PtX(best_pt);
(void) Trial_Open(twinp, current_rect, State_Get_Timestamp());
ret_val = TRUE;
}
/* if we were successful, commit the operation */
if (ret_val == TRUE)
Commit_Operation(twinp);
break;
case Right:
if (fixed_width == TRUE)
ret_val = Trial_Open(twinp, desired_rect, State_Get_Timestamp());
else{
(void) Trial_Grow(twinp, current_rect, dir, &best_pt, State_Get_Timestamp());
Get_RightX(current_rect) = Get_PtX(best_pt);
(void) Trial_Open(twinp, current_rect, State_Get_Timestamp());
ret_val = TRUE;
}
if (ret_val == TRUE)
Commit_Operation(twinp);
break;
case Top:
if (fixed_height == TRUE)
ret_val = Trial_Open(twinp, desired_rect, State_Get_Timestamp());
else{
(void) Trial_Grow(twinp, current_rect, dir, &best_pt, State_Get_Timestamp());
Get_TopY(current_rect) = Get_PtY(best_pt);
(void) Trial_Open(twinp, current_rect, State_Get_Timestamp());
ret_val = TRUE;
}
if (ret_val == TRUE)
Commit_Operation(twinp);
break;
case Bottom:
if (fixed_height == TRUE)
ret_val = Trial_Open(twinp, desired_rect, State_Get_Timestamp());
else{
(void) Trial_Grow(twinp, current_rect, dir, &best_pt, State_Get_Timestamp());
Get_BottomY(current_rect) = Get_PtY(best_pt);
(void) Trial_Open(twinp, current_rect, State_Get_Timestamp());
ret_val = TRUE;
}
if (ret_val == TRUE)
Commit_Operation(twinp);
break;
case Top_Left:
/* if the width and height are both TRUE, do an open */
if (fixed_width == TRUE && fixed_height == TRUE){
if ((ret_val = Trial_Open(twinp, desired_rect, State_Get_Timestamp())) == TRUE)
Commit_Operation(twinp);
}
/* else if just the width is fixed, do an open on the width and, if
* this succeeds, do a resize on the height */
else if (fixed_width == TRUE){
Get_LeftX(current_rect) = Get_LeftX(desired_rect);
if ((ret_val = Trial_Open(twinp, current_rect, State_Get_Timestamp())) == TRUE){
(void) Trial_Grow(twinp, current_rect, Top, &best_pt, State_Get_Timestamp());
Get_TopY(current_rect) = Get_PtY(best_pt);
(void) Trial_Open(twinp, current_rect, State_Get_Timestamp());
Commit_Operation(twinp);
}
}
/* else if just the height is fixed, do an open on the height and, if
* this succeeds, do a resize on the width */
else if (fixed_height == TRUE){
Get_TopY(current_rect) = Get_TopY(desired_rect);
if ((ret_val = Trial_Open(twinp, current_rect, State_Get_Timestamp())) == TRUE){
(void) Trial_Grow(twinp, current_rect, Left, &best_pt, State_Get_Timestamp());
Get_LeftX(current_rect) = Get_PtX(best_pt);
(void) Trial_Open(twinp, current_rect, State_Get_Timestamp());
Commit_Operation(twinp);
}
}
/* else neither direction is fixed, so try to do an open to resize the
* window, if this fails use Open_Best_In_Area */
else{
if ((ret_val = Trial_Open(twinp, desired_rect, State_Get_Timestamp())) == TRUE)
Commit_Operation(twinp);
else{
SWAP_VALUE(FIXED_LEFT_EDGE, FALSE, old_left);
SWAP_VALUE(FIXED_RIGHT_EDGE, TRUE, old_right);
SWAP_VALUE(FIXED_TOP_EDGE, FALSE, old_top);
SWAP_VALUE(FIXED_BOTTOM_EDGE, TRUE, old_bottom);
COMPUTE_SIZE(rect, size);
if ((ret_val = Tilwin_Open_Best_In_Area(winp, desired_rect, size)) == TRUE)
Commit_Operation(twinp);
SWAP_VALUE(FIXED_LEFT_EDGE, old_left, old_left);
SWAP_VALUE(FIXED_RIGHT_EDGE, old_right, old_right);
SWAP_VALUE(FIXED_TOP_EDGE, old_top, old_top);
SWAP_VALUE(FIXED_BOTTOM_EDGE, old_bottom, old_bottom);
}
}
break;
case Top_Right:
/* if the width and height are both TRUE, do an open */
if (fixed_width == TRUE && fixed_height == TRUE){
if ((ret_val = Trial_Open(twinp, desired_rect, State_Get_Timestamp())) == TRUE)
Commit_Operation(twinp);
}
/* else if just the width is fixed, do an open on the width and, if
* this succeeds, do a resize on the height */
else if (fixed_width == TRUE){
Get_RightX(current_rect) = Get_RightX(desired_rect);
if ((ret_val = Trial_Open(twinp, current_rect, State_Get_Timestamp())) == TRUE){
(void) Trial_Grow(twinp, current_rect, Top, &best_pt, State_Get_Timestamp());
Get_TopY(current_rect) = Get_PtY(best_pt);
(void) Trial_Open(twinp, current_rect, State_Get_Timestamp());
Commit_Operation(twinp);
}
}
/* else if just the height is fixed, do an open on the height and, if
* this succeeds, do a resize on the width */
else if (fixed_height == TRUE){
Get_TopY(current_rect) = Get_TopY(desired_rect);
if ((ret_val = Trial_Open(twinp, current_rect, State_Get_Timestamp())) == TRUE){
(void) Trial_Grow(twinp, current_rect, Right, &best_pt, State_Get_Timestamp());
Get_RightX(current_rect) = Get_PtX(best_pt);
(void) Trial_Open(twinp, current_rect, State_Get_Timestamp());
Commit_Operation(twinp);
}
}
/* else neither direction is fixed, so try to do an open to resize the
* window, if this fails use Open_Best_In_Area */
else{
if ((ret_val = Trial_Open(twinp, desired_rect, State_Get_Timestamp())) == TRUE)
Commit_Operation(twinp);
else{
SWAP_VALUE(FIXED_LEFT_EDGE, TRUE, old_left);
SWAP_VALUE(FIXED_RIGHT_EDGE, FALSE, old_right);
SWAP_VALUE(FIXED_TOP_EDGE, FALSE, old_top);
SWAP_VALUE(FIXED_BOTTOM_EDGE, TRUE, old_bottom);
COMPUTE_SIZE(rect, size);
if ((ret_val = Tilwin_Open_Best_In_Area(winp, desired_rect, size)) == TRUE)
Commit_Operation(twinp);
SWAP_VALUE(FIXED_LEFT_EDGE, old_left, old_left);
SWAP_VALUE(FIXED_RIGHT_EDGE, old_right, old_right);
SWAP_VALUE(FIXED_TOP_EDGE, old_top, old_top);
SWAP_VALUE(FIXED_BOTTOM_EDGE, old_bottom, old_bottom);
}
}
break;
case Bottom_Left:
/* if the width and height are both TRUE, do an open */
if (fixed_width == TRUE && fixed_height == TRUE){
if ((ret_val = Trial_Open(twinp, desired_rect, State_Get_Timestamp())) == TRUE)
Commit_Operation(twinp);
}
/* else if just the width is fixed, do an open on the width and, if
* this succeeds, do a resize on the height */
else if (fixed_width == TRUE){
Get_LeftX(current_rect) = Get_LeftX(desired_rect);
if ((ret_val = Trial_Open(twinp, current_rect, State_Get_Timestamp())) == TRUE){
(void) Trial_Grow(twinp, current_rect, Bottom, &best_pt, State_Get_Timestamp());
Get_BottomY(current_rect) = Get_PtY(best_pt);
(void) Trial_Open(twinp, current_rect, State_Get_Timestamp());
Commit_Operation(twinp);
}
}
/* else if just the height is fixed, do an open on the height and, if
* this succeeds, do a resize on the width */
else if (fixed_height == TRUE){
Get_BottomY(current_rect) = Get_BottomY(desired_rect);
if ((ret_val = Trial_Open(twinp, current_rect, State_Get_Timestamp())) == TRUE){
(void) Trial_Grow(twinp, current_rect, Left, &best_pt, State_Get_Timestamp());
Get_LeftX(current_rect) = Get_PtX(best_pt);
(void) Trial_Open(twinp, current_rect, State_Get_Timestamp());
Commit_Operation(twinp);
}
}
/* else neither direction is fixed, so try to do an open to resize the
* window, if this fails use Open_Best_In_Area */
else{
if ((ret_val = Trial_Open(twinp, desired_rect, State_Get_Timestamp())) == TRUE)
Commit_Operation(twinp);
else{
SWAP_VALUE(FIXED_LEFT_EDGE, FALSE, old_left);
SWAP_VALUE(FIXED_RIGHT_EDGE, TRUE, old_right);
SWAP_VALUE(FIXED_TOP_EDGE, TRUE, old_top);
SWAP_VALUE(FIXED_BOTTOM_EDGE, FALSE, old_bottom);
COMPUTE_SIZE(rect, size);
if ((ret_val = Tilwin_Open_Best_In_Area(winp, desired_rect, size)) == TRUE)
Commit_Operation(twinp);
SWAP_VALUE(FIXED_LEFT_EDGE, old_left, old_left);
SWAP_VALUE(FIXED_RIGHT_EDGE, old_right, old_right);
SWAP_VALUE(FIXED_TOP_EDGE, old_top, old_top);
SWAP_VALUE(FIXED_BOTTOM_EDGE, old_bottom, old_bottom);
}
}
break;
case Bottom_Right:
/* if the width and height are both TRUE, do an open */
if (fixed_width == TRUE && fixed_height == TRUE){
if ((ret_val = Trial_Open(twinp, desired_rect, State_Get_Timestamp())) == TRUE)
Commit_Operation(twinp);
}
/* else if just the width is fixed, do an open on the width and, if
* this succeeds, do a resize on the height */
else if (fixed_width == TRUE){
Get_RightX(current_rect) = Get_RightX(desired_rect);
if ((ret_val = Trial_Open(twinp, current_rect, State_Get_Timestamp())) == TRUE){
(void) Trial_Grow(twinp, current_rect, Bottom, &best_pt, State_Get_Timestamp());
Get_BottomY(current_rect) = Get_PtY(best_pt);
(void) Trial_Open(twinp, current_rect, State_Get_Timestamp());
Commit_Operation(twinp);
}
}
/* else if just the height is fixed, do an open on the height and, if
* this succeeds, do a resize on the width */
else if (fixed_height == TRUE){
Get_BottomY(current_rect) = Get_BottomY(desired_rect);
if ((ret_val = Trial_Open(twinp, current_rect, State_Get_Timestamp())) == TRUE){
(void) Trial_Grow(twinp, current_rect, Right, &best_pt, State_Get_Timestamp());
Get_RightX(current_rect) = Get_PtX(best_pt);
(void) Trial_Open(twinp, current_rect, State_Get_Timestamp());
Commit_Operation(twinp);
}
}
/* else neither direction is fixed, so try to do an open to resize the
* window, if this fails use Open_Best_In_Area */
else{
if ((ret_val = Trial_Open(twinp, desired_rect, State_Get_Timestamp())) == TRUE)
Commit_Operation(twinp);
else{
SWAP_VALUE(FIXED_LEFT_EDGE, TRUE, old_left);
SWAP_VALUE(FIXED_RIGHT_EDGE, FALSE, old_right);
SWAP_VALUE(FIXED_TOP_EDGE, TRUE, old_top);
SWAP_VALUE(FIXED_BOTTOM_EDGE, FALSE, old_bottom);
COMPUTE_SIZE(rect, size);
if ((ret_val = Tilwin_Open_Best_In_Area(winp, desired_rect, size)) == TRUE)
Commit_Operation(twinp);
SWAP_VALUE(FIXED_LEFT_EDGE, old_left, old_left);
SWAP_VALUE(FIXED_RIGHT_EDGE, old_right, old_right);
SWAP_VALUE(FIXED_TOP_EDGE, old_top, old_top);
SWAP_VALUE(FIXED_BOTTOM_EDGE, old_bottom, old_bottom);
}
}
break;
}
return(ret_val);
}