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Long standing scroll bug fixed!

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Joseph Pranevich 1999-01-03 16:15:12 +00:00 committed by Alexandre Julliard
parent e884f9ca0e
commit d87fa94c09
1 changed files with 79 additions and 61 deletions
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140
console/generic.c
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@ -15,6 +15,9 @@
#include "config.h"
#include "debug.h"
static void GENERIC_MoveLine(char row1, char row2, char col1, char col2);
static void GENERIC_ClearLine(char row, char col1, char col2, int bgcolor,
int attribute);
void GENERIC_Start()
{
/* Here, we only want to add a driver if there is not one already
@ -38,11 +41,9 @@ void GENERIC_Start()
void GENERIC_ClearWindow(char row1, char col1, char row2, char col2,
int bg_color, int attribute)
{
char trow, tcol;
char x, y;
char trow, tcol, x;
int old_refresh;
TRACE(console, "GENERIC_ClearWindow()\n");
/* Abort if we have only partial functionality */
if (!(driver.getCursorPosition && driver.moveCursor && driver.write))
return;
@ -52,102 +53,73 @@ void GENERIC_ClearWindow(char row1, char col1, char row2, char col2,
CONSOLE_GetCursorPosition(&trow, &tcol);
for (x = row1; x < row2; x++)
{
CONSOLE_MoveCursor(x, col1);
for (x = row1; x <= row2; x++)
GENERIC_ClearLine(x, col1, col2, bg_color, attribute);
for (y = col1; y < col2; y++)
{
CONSOLE_Write(' ', 0, bg_color, attribute);
}
}
CONSOLE_MoveCursor(trow, tcol);
CONSOLE_SetRefresh(old_refresh);
TRACE(console, "GENERIC_ClearWindow() completed.\n");
}
/* These are in-progress. I just haven't finished them yet... */
void GENERIC_ScrollUpWindow(char row1, char col1, char row2, char col2,
char lines, int bg_color, int attribute)
{
char trow, tcol;
int x, y;
char ch;
int bg, fg, attr;
int old_refresh;
/* Scroll Up Window: Characters go down */
TRACE(console, "GENERIC_ScrollUpWindow()\n");
char trow, tcol;
int old_refresh, x;
TRACE(console, "Scroll Up %d lines from %d to %d.\n", lines, row1,
row2);
/* Abort if we have only partial functionality */
if (!(driver.getCursorPosition && driver.moveCursor && driver.write
&& driver.getCharacterAtCursor && driver.clearWindow))
return;
/* Save initial state... */
old_refresh = CONSOLE_GetRefresh();
CONSOLE_SetRefresh(FALSE);
CONSOLE_GetCursorPosition(&trow, &tcol);
for (x = row1 + lines; x < row2; x++)
for (x = row1 + lines; x <= row2; x++)
{
for (y = col1; y < col2; y++)
{
CONSOLE_MoveCursor(x, y);
CONSOLE_GetCharacterAtCursor(&ch, &fg, &bg, &attr);
CONSOLE_MoveCursor(x - lines, y);
CONSOLE_Write(ch, fg, bg, attr);
}
}
CONSOLE_ClearWindow(row2 - lines, col1, row2, col2, bg_color,
attribute);
CONSOLE_MoveCursor(trow, tcol);
GENERIC_MoveLine(x, x - lines, col1, col2);
GENERIC_ClearLine(x, col1, col2, bg_color, attribute);
}
/* Restore State */
CONSOLE_MoveCursor(trow, tcol);
CONSOLE_SetRefresh(old_refresh);
TRACE(console, "GENERIC_ScrollUpWindow() completed.\n");
}
void GENERIC_ScrollDownWindow(char row1, char col1, char row2, char col2,
char lines, int bg_color, int attribute)
{
char trow, tcol;
int x, y;
char ch;
int bg, fg, attr;
int old_refresh;
/* Scroll Down Window: Characters go up */
TRACE(console, "GENERIC_ScrollDownWindow()\n");
char trow, tcol;
int old_refresh, x;
/* Abort if we have only partial functionality */
if (!(driver.getCursorPosition && driver.moveCursor && driver.write
&& driver.getCharacterAtCursor && driver.clearWindow))
return;
/* Save initial state... */
old_refresh = CONSOLE_GetRefresh();
CONSOLE_SetRefresh(FALSE);
CONSOLE_GetCursorPosition(&trow, &tcol);
for (x = row2 - lines; x > row1; x--)
for (x = row2; x >= row1 + lines; x--)
{
for (y = col1; y < col2; y++)
{
CONSOLE_MoveCursor(x, y);
CONSOLE_GetCharacterAtCursor(&ch, &fg, &bg, &attr);
CONSOLE_MoveCursor(x + lines, y);
CONSOLE_Write(ch, fg, bg, attr);
}
}
CONSOLE_ClearWindow(row1, col1, row1 + lines, col2, bg_color,
attribute);
CONSOLE_MoveCursor(trow, tcol);
GENERIC_MoveLine(x, x + lines, col1, col2);
GENERIC_ClearLine(x, col1, col1, bg_color, attribute);
}
/* Restore State */
CONSOLE_MoveCursor(trow, tcol);
CONSOLE_SetRefresh(old_refresh);
TRACE(console, "GENERIC_ScrollDownWindow() completed.\n");
}
char GENERIC_GetCharacter()
@ -162,3 +134,49 @@ char GENERIC_GetCharacter()
return ch;
}
static void GENERIC_ClearLine(char row, char col1, char col2, int bgcolor,
int attribute)
{
/* This function is here to simplify the logic of the scroll and clear
functions but may be useful elsewhere. If it can be used from
outside here, it should be made non-static */
int x;
TRACE(console, "Clear Line: %d from %d to %d.\n", row, col1, col2);
for (x = col1; x <= col2; x++)
{
CONSOLE_MoveCursor(row, x);
CONSOLE_Write(' ', 0, 0, 0);
}
/* Assume that the calling function will make sure that the cursor is
repositioned properly. If this becomes non-static, that will need to be
changed. */
}
static void GENERIC_MoveLine(char row1, char row2, char col1, char col2)
{
/* This function is here to simplify the logic of the scroll and clear
functions but may be useful elsewhere. If it can be used from
outside here, it should be made non-static */
int x;
int bg_color, fg_color, attribute;
char ch;
TRACE(console, "Move Line: Move %d to %d.\n", row1, row2);
for (x = col1; x <= col2; x++)
{
CONSOLE_MoveCursor(row1, x);
CONSOLE_GetCharacterAtCursor(&ch, &fg_color, &bg_color, &attribute);
CONSOLE_MoveCursor(row2, x);
CONSOLE_Write(ch, fg_color, bg_color, attribute);
}
/* Assume that the calling function will make sure that the cursor is
repositioned properly. If this becomes non-static, that will need to be
changed. */
}