+++ /dev/null
-/*
- * COPYRIGHT: See COPYING in the top level directory
- * PROJECT: ReactOS Console Server DLL
- * FILE: win32ss/user/winsrv/consrv/frontends/gui/text.c
- * PURPOSE: GUI Terminal Front-End - Support for text-mode screen-buffers
- * PROGRAMMERS: Gé van Geldorp
- * Johannes Anderwald
- * Jeffrey Morlan
- * Hermes Belusca-Maito (hermes.belusca@sfr.fr)
- */
-
-/* INCLUDES *******************************************************************/
-
-#include <consrv.h>
-
-#define NDEBUG
-#include <debug.h>
-
-#include "guiterm.h"
-
-/* GLOBALS ********************************************************************/
-
-#define IS_WHITESPACE(c) ((c) == L'\0' || (c) == L' ' || (c) == L'\t')
-
-/* FUNCTIONS ******************************************************************/
-
-static COLORREF
-PaletteRGBFromAttrib(PCONSRV_CONSOLE Console, WORD Attribute)
-{
- HPALETTE hPalette = Console->ActiveBuffer->PaletteHandle;
- PALETTEENTRY pe;
-
- if (hPalette == NULL) return RGBFromAttrib(Console, Attribute);
-
- GetPaletteEntries(hPalette, Attribute, 1, &pe);
- return PALETTERGB(pe.peRed, pe.peGreen, pe.peBlue);
-}
-
-static VOID
-CopyBlock(PTEXTMODE_SCREEN_BUFFER Buffer,
- PSMALL_RECT Selection)
-{
- /*
- * Pressing the Shift key while copying text, allows us to copy
- * text without newline characters (inline-text copy mode).
- */
- BOOL InlineCopyMode = !!(GetKeyState(VK_SHIFT) & KEY_PRESSED);
-
- HANDLE hData;
- PCHAR_INFO ptr;
- LPWSTR data, dstPos;
- ULONG selWidth, selHeight;
- ULONG xPos, yPos;
- ULONG size;
-
- DPRINT("CopyBlock(%u, %u, %u, %u)\n",
- Selection->Left, Selection->Top, Selection->Right, Selection->Bottom);
-
- /* Prevent against empty blocks */
- if (Selection == NULL) return;
- if (Selection->Left > Selection->Right || Selection->Top > Selection->Bottom)
- return;
-
- selWidth = Selection->Right - Selection->Left + 1;
- selHeight = Selection->Bottom - Selection->Top + 1;
-
- /* Basic size for one line... */
- size = selWidth;
- /* ... and for the other lines, add newline characters if needed. */
- if (selHeight > 0)
- {
- /*
- * If we are not in inline-text copy mode, each selected line must
- * finish with \r\n . Otherwise, the lines will be just concatenated.
- */
- size += (selWidth + (!InlineCopyMode ? 2 : 0)) * (selHeight - 1);
- }
- else
- {
- DPRINT1("This case must never happen, because selHeight is at least == 1\n");
- }
-
- size++; /* Null-termination */
- size *= sizeof(WCHAR);
-
- /* Allocate some memory area to be given to the clipboard, so it will not be freed here */
- hData = GlobalAlloc(GMEM_MOVEABLE | GMEM_ZEROINIT, size);
- if (hData == NULL) return;
-
- data = GlobalLock(hData);
- if (data == NULL)
- {
- GlobalFree(hData);
- return;
- }
-
- DPRINT("Copying %dx%d selection\n", selWidth, selHeight);
- dstPos = data;
-
- for (yPos = 0; yPos < selHeight; yPos++)
- {
- ULONG length = selWidth;
-
- ptr = ConioCoordToPointer(Buffer,
- Selection->Left,
- Selection->Top + yPos);
-
- /* Trim whitespace from the right */
- while (length > 0)
- {
- if (IS_WHITESPACE(ptr[length-1].Char.UnicodeChar))
- --length;
- else
- break;
- }
-
- /* Copy only the characters, leave attributes alone */
- for (xPos = 0; xPos < length; xPos++)
- {
- /*
- * Sometimes, applications can put NULL chars into the screen-buffer
- * (this behaviour is allowed). Detect this and replace by a space.
- */
- *dstPos++ = (ptr[xPos].Char.UnicodeChar ? ptr[xPos].Char.UnicodeChar : L' ');
- }
-
- /* Add newline characters if we are not in inline-text copy mode */
- if (!InlineCopyMode)
- {
- if (yPos != (selHeight - 1))
- {
- wcscat(dstPos, L"\r\n");
- dstPos += 2;
- }
- }
- }
-
- DPRINT("Setting data <%S> to clipboard\n", data);
- GlobalUnlock(hData);
-
- EmptyClipboard();
- SetClipboardData(CF_UNICODETEXT, hData);
-}
-
-static VOID
-CopyLines(PTEXTMODE_SCREEN_BUFFER Buffer,
- PCOORD Begin,
- PCOORD End)
-{
- HANDLE hData;
- PCHAR_INFO ptr;
- LPWSTR data, dstPos;
- ULONG NumChars, size;
- ULONG xPos, yPos, xBeg, xEnd;
-
- DPRINT("CopyLines((%u, %u) ; (%u, %u))\n",
- Begin->X, Begin->Y, End->X, End->Y);
-
- /* Prevent against empty blocks... */
- if (Begin == NULL || End == NULL) return;
- /* ... or malformed blocks */
- if (Begin->Y > End->Y || (Begin->Y == End->Y && Begin->X > End->X)) return;
-
- /* Compute the number of characters to copy */
- if (End->Y == Begin->Y) // top == bottom
- {
- NumChars = End->X - Begin->X + 1;
- }
- else // if (End->Y > Begin->Y)
- {
- NumChars = Buffer->ScreenBufferSize.X - Begin->X;
-
- if (End->Y >= Begin->Y + 2)
- {
- NumChars += (End->Y - Begin->Y - 1) * Buffer->ScreenBufferSize.X;
- }
-
- NumChars += End->X + 1;
- }
-
- size = (NumChars + 1) * sizeof(WCHAR); /* Null-terminated */
-
- /* Allocate some memory area to be given to the clipboard, so it will not be freed here */
- hData = GlobalAlloc(GMEM_MOVEABLE | GMEM_ZEROINIT, size);
- if (hData == NULL) return;
-
- data = GlobalLock(hData);
- if (data == NULL)
- {
- GlobalFree(hData);
- return;
- }
-
- DPRINT("Copying %d characters\n", NumChars);
- dstPos = data;
-
- /*
- * We need to walk per-lines, and not just looping in the big screen-buffer
- * array, because of the way things are stored inside it. The downside is
- * that it makes the code more complicated.
- */
- for (yPos = Begin->Y; (yPos <= (ULONG)End->Y) && (NumChars > 0); yPos++)
- {
- xBeg = (yPos == Begin->Y ? Begin->X : 0);
- xEnd = (yPos == End->Y ? End->X : Buffer->ScreenBufferSize.X - 1);
-
- ptr = ConioCoordToPointer(Buffer, 0, yPos);
-
- /* Copy only the characters, leave attributes alone */
- for (xPos = xBeg; (xPos <= xEnd) && (NumChars-- > 0); xPos++)
- {
- /*
- * Sometimes, applications can put NULL chars into the screen-buffer
- * (this behaviour is allowed). Detect this and replace by a space.
- */
- *dstPos++ = (ptr[xPos].Char.UnicodeChar ? ptr[xPos].Char.UnicodeChar : L' ');
- }
- }
-
- DPRINT("Setting data <%S> to clipboard\n", data);
- GlobalUnlock(hData);
-
- EmptyClipboard();
- SetClipboardData(CF_UNICODETEXT, hData);
-}
-
-
-VOID
-GetSelectionBeginEnd(PCOORD Begin, PCOORD End,
- PCOORD SelectionAnchor,
- PSMALL_RECT SmallRect);
-
-VOID
-GuiCopyFromTextModeBuffer(PTEXTMODE_SCREEN_BUFFER Buffer,
- PGUI_CONSOLE_DATA GuiData)
-{
- /*
- * This function supposes that the system clipboard was opened.
- */
-
- BOOL LineSelection = GuiData->LineSelection;
-
- DPRINT("Selection is (%d|%d) to (%d|%d) in %s mode\n",
- GuiData->Selection.srSelection.Left,
- GuiData->Selection.srSelection.Top,
- GuiData->Selection.srSelection.Right,
- GuiData->Selection.srSelection.Bottom,
- (LineSelection ? "line" : "block"));
-
- if (!LineSelection)
- {
- CopyBlock(Buffer, &GuiData->Selection.srSelection);
- }
- else
- {
- COORD Begin, End;
-
- GetSelectionBeginEnd(&Begin, &End,
- &GuiData->Selection.dwSelectionAnchor,
- &GuiData->Selection.srSelection);
-
- CopyLines(Buffer, &Begin, &End);
- }
-}
-
-VOID
-GuiPasteToTextModeBuffer(PTEXTMODE_SCREEN_BUFFER Buffer,
- PGUI_CONSOLE_DATA GuiData)
-{
- /*
- * This function supposes that the system clipboard was opened.
- */
-
- PCONSRV_CONSOLE Console = Buffer->Header.Console;
-
- HANDLE hData;
- LPWSTR str;
- WCHAR CurChar = 0;
-
- USHORT VkKey; // MAKEWORD(low = vkey_code, high = shift_state);
- INPUT_RECORD er;
-
- hData = GetClipboardData(CF_UNICODETEXT);
- if (hData == NULL) return;
-
- str = GlobalLock(hData);
- if (str == NULL) return;
-
- DPRINT("Got data <%S> from clipboard\n", str);
-
- er.EventType = KEY_EVENT;
- er.Event.KeyEvent.wRepeatCount = 1;
- while (*str)
- {
- /* \r or \n characters. Go to the line only if we get "\r\n" sequence. */
- if (CurChar == L'\r' && *str == L'\n')
- {
- str++;
- continue;
- }
- CurChar = *str++;
-
- /* Get the key code (+ shift state) corresponding to the character */
- VkKey = VkKeyScanW(CurChar);
- if (VkKey == 0xFFFF)
- {
- DPRINT1("FIXME: TODO: VkKeyScanW failed - Should simulate the key!\n");
- /*
- * We don't really need the scan/key code because we actually only
- * use the UnicodeChar for output purposes. It may pose few problems
- * later on but it's not of big importance. One trick would be to
- * convert the character to OEM / multibyte and use MapVirtualKey
- * on each byte (simulating an Alt-0xxx OEM keyboard press).
- */
- }
-
- /* Pressing some control keys */
-
- /* Pressing the character key, with the control keys maintained pressed */
- er.Event.KeyEvent.bKeyDown = TRUE;
- er.Event.KeyEvent.wVirtualKeyCode = LOBYTE(VkKey);
- er.Event.KeyEvent.wVirtualScanCode = MapVirtualKeyW(LOBYTE(VkKey), MAPVK_VK_TO_VSC);
- er.Event.KeyEvent.uChar.UnicodeChar = CurChar;
- er.Event.KeyEvent.dwControlKeyState = 0;
- if (HIBYTE(VkKey) & 1)
- er.Event.KeyEvent.dwControlKeyState |= SHIFT_PRESSED;
- if (HIBYTE(VkKey) & 2)
- er.Event.KeyEvent.dwControlKeyState |= LEFT_CTRL_PRESSED; // RIGHT_CTRL_PRESSED;
- if (HIBYTE(VkKey) & 4)
- er.Event.KeyEvent.dwControlKeyState |= LEFT_ALT_PRESSED; // RIGHT_ALT_PRESSED;
-
- ConioProcessInputEvent(Console, &er);
-
- /* Up all the character and control keys */
- er.Event.KeyEvent.bKeyDown = FALSE;
- ConioProcessInputEvent(Console, &er);
- }
-
- GlobalUnlock(hData);
-}
-
-VOID
-GuiPaintTextModeBuffer(PTEXTMODE_SCREEN_BUFFER Buffer,
- PGUI_CONSOLE_DATA GuiData,
- PRECT rcView,
- PRECT rcFramebuffer)
-{
- PCONSRV_CONSOLE Console = Buffer->Header.Console;
- // ASSERT(Console == GuiData->Console);
-
- ULONG TopLine, BottomLine, LeftChar, RightChar;
- ULONG Line, Char, Start;
- PCHAR_INFO From;
- PWCHAR To;
- WORD LastAttribute, Attribute;
- ULONG CursorX, CursorY, CursorHeight;
- HBRUSH CursorBrush, OldBrush;
- HFONT OldFont, NewFont;
- BOOLEAN IsUnderline;
-
- if (Buffer->Buffer == NULL) return;
-
- if (!ConDrvValidateConsoleUnsafe((PCONSOLE)Console, CONSOLE_RUNNING, TRUE)) return;
-
- rcFramebuffer->left = Buffer->ViewOrigin.X * GuiData->CharWidth + rcView->left;
- rcFramebuffer->top = Buffer->ViewOrigin.Y * GuiData->CharHeight + rcView->top;
- rcFramebuffer->right = Buffer->ViewOrigin.X * GuiData->CharWidth + rcView->right;
- rcFramebuffer->bottom = Buffer->ViewOrigin.Y * GuiData->CharHeight + rcView->bottom;
-
- LeftChar = rcFramebuffer->left / GuiData->CharWidth;
- TopLine = rcFramebuffer->top / GuiData->CharHeight;
- RightChar = rcFramebuffer->right / GuiData->CharWidth;
- BottomLine = rcFramebuffer->bottom / GuiData->CharHeight;
-
- if (RightChar >= (ULONG)Buffer->ScreenBufferSize.X) RightChar = Buffer->ScreenBufferSize.X - 1;
- if (BottomLine >= (ULONG)Buffer->ScreenBufferSize.Y) BottomLine = Buffer->ScreenBufferSize.Y - 1;
-
- LastAttribute = ConioCoordToPointer(Buffer, LeftChar, TopLine)->Attributes;
-
- SetTextColor(GuiData->hMemDC, PaletteRGBFromAttrib(Console, TextAttribFromAttrib(LastAttribute)));
- SetBkColor(GuiData->hMemDC, PaletteRGBFromAttrib(Console, BkgdAttribFromAttrib(LastAttribute)));
-
- /* We use the underscore flag as a underline flag */
- IsUnderline = !!(LastAttribute & COMMON_LVB_UNDERSCORE);
- /* Select the new font */
- NewFont = GuiData->Font[IsUnderline ? FONT_BOLD : FONT_NORMAL];
- OldFont = SelectObject(GuiData->hMemDC, NewFont);
-
- for (Line = TopLine; Line <= BottomLine; Line++)
- {
- WCHAR LineBuffer[80]; // Buffer containing a part or all the line to be displayed
- From = ConioCoordToPointer(Buffer, LeftChar, Line); // Get the first code of the line
- Start = LeftChar;
- To = LineBuffer;
-
- for (Char = LeftChar; Char <= RightChar; Char++)
- {
- /*
- * We flush the buffer if the new attribute is different
- * from the current one, or if the buffer is full.
- */
- if (From->Attributes != LastAttribute || (Char - Start == sizeof(LineBuffer) / sizeof(WCHAR)))
- {
- TextOutW(GuiData->hMemDC,
- Start * GuiData->CharWidth,
- Line * GuiData->CharHeight,
- LineBuffer,
- Char - Start);
- Start = Char;
- To = LineBuffer;
- Attribute = From->Attributes;
- if (Attribute != LastAttribute)
- {
- LastAttribute = Attribute;
- SetTextColor(GuiData->hMemDC, PaletteRGBFromAttrib(Console, TextAttribFromAttrib(LastAttribute)));
- SetBkColor(GuiData->hMemDC, PaletteRGBFromAttrib(Console, BkgdAttribFromAttrib(LastAttribute)));
-
- /* Change underline state if needed */
- if (!!(LastAttribute & COMMON_LVB_UNDERSCORE) != IsUnderline)
- {
- IsUnderline = !!(LastAttribute & COMMON_LVB_UNDERSCORE);
- /* Select the new font */
- NewFont = GuiData->Font[IsUnderline ? FONT_BOLD : FONT_NORMAL];
- /* OldFont = */ SelectObject(GuiData->hMemDC, NewFont);
- }
- }
- }
-
- *(To++) = (From++)->Char.UnicodeChar;
- }
-
- TextOutW(GuiData->hMemDC,
- Start * GuiData->CharWidth,
- Line * GuiData->CharHeight,
- LineBuffer,
- RightChar - Start + 1);
- }
-
- /* Restore the old font */
- SelectObject(GuiData->hMemDC, OldFont);
-
- /*
- * Draw the caret
- */
- if (Buffer->CursorInfo.bVisible &&
- Buffer->CursorBlinkOn &&
- !Buffer->ForceCursorOff)
- {
- CursorX = Buffer->CursorPosition.X;
- CursorY = Buffer->CursorPosition.Y;
- if (LeftChar <= CursorX && CursorX <= RightChar &&
- TopLine <= CursorY && CursorY <= BottomLine)
- {
- CursorHeight = ConioEffectiveCursorSize(Console, GuiData->CharHeight);
-
- Attribute = ConioCoordToPointer(Buffer, Buffer->CursorPosition.X, Buffer->CursorPosition.Y)->Attributes;
- if (Attribute == DEFAULT_SCREEN_ATTRIB) Attribute = Buffer->ScreenDefaultAttrib;
-
- CursorBrush = CreateSolidBrush(PaletteRGBFromAttrib(Console, TextAttribFromAttrib(Attribute)));
- OldBrush = SelectObject(GuiData->hMemDC, CursorBrush);
-
- PatBlt(GuiData->hMemDC,
- CursorX * GuiData->CharWidth,
- CursorY * GuiData->CharHeight + (GuiData->CharHeight - CursorHeight),
- GuiData->CharWidth,
- CursorHeight,
- PATCOPY);
-
- SelectObject(GuiData->hMemDC, OldBrush);
- DeleteObject(CursorBrush);
- }
- }
-
- LeaveCriticalSection(&Console->Lock);
-}
-
-/* EOF */
projects / reactos.git / blobdiff