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wmaker/WINGs/wtext.c

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/* WINGs WMText: multi-line/font/color/graphic text widget, by Nwanua. */
#include "WINGsP.h"
#include <ctype.h>
#include <X11/keysym.h>
#include <X11/Xatom.h>
#define DO_BLINK 0
/* TODO:
* - selection code... selects can be funny if it crosses over. use rect?
* - also inspect behaviour for WACenter and WARight
* - what if a widget grabs the click... howto say: "pressed me"?
* note that WMCreateEventHandler takes one data, but need widget & tPtr
* - FIX: graphix blocks MUST be skipped if monoFont even though they exist!
* - check if support for Horizontal Scroll is complete
* - assess danger of destroying widgets whose actions link to other pages
* - Tabs now are simply replaced by 4 spaces...
* - redo blink code to reduce paint event... use pixmap buffer...
* - add paragraph support (full) and '\n' code in getStream..
*/
/* a Section is a section of a TextBlock that describes what parts
of a TextBlock has been laid out on which "line"...
o this greatly aids redraw, scroll and selection.
o this is created during layoutLine, but may be later modified.
o there may be many Sections per TextBlock, hence the array */
typedef struct {
unsigned int x, y; /* where to draw it from */
unsigned short w, h; /* its width and height */
unsigned short begin; /* where the layout begins */
unsigned short end ; /* where it ends */
unsigned short max_d; /* a quick hack for layOut if(laidOut) */
unsigned short last:1; /* is it the last section on a "line"? */
unsigned int _y:31; /* the "line" it and other textblocks are on */
} Section;
/* a TextBlock is a node in a doubly-linked list of TextBlocks containing:
o text for the block, color and font
o or a pointer to the pixmap
o OR a pointer to the widget and the (text) description for its graphic
*/
typedef struct _TextBlock {
struct _TextBlock *next; /* next text block in linked list */
struct _TextBlock *prior; /* prior text block in linked list */
char *text; /* pointer to text (could be kanji) */
/* or to the object's description */
union {
WMFont *font; /* the font */
WMWidget *widget; /* the embedded widget */
WMPixmap *pixmap; /* the pixmap */
} d; /* description */
unsigned short used; /* number of chars in this block */
unsigned short allocated; /* size of allocation (in chars) */
WMColor *color; /* the color */
Section *sections; /* the region for layouts (a growable array) */
/* an _array_! of size _nsections_ */
unsigned short s_begin; /* where the selection begins */
unsigned short s_end; /* where it ends */
unsigned int first:1; /* first TextBlock in paragraph */
unsigned int blank:1; /* ie. blank paragraph */
unsigned int kanji:1; /* is of 16-bit characters or not */
unsigned int graphic:1; /* graphic or text: text=0 */
unsigned int object:1; /* embedded object or pixmap */
unsigned int underlined:1; /* underlined or not */
unsigned int selected:1; /* selected or not */
unsigned int nsections:8; /* over how many "lines" a TextBlock wraps */
int script:8; /* script in points: negative for subscript */
unsigned int marginN:8; /* which of the margins in the tPtr to use */
unsigned int nClicks:2; /* single, double, triple clicks */
unsigned int RESERVED:7;
} TextBlock;
/* I'm lazy: visible.h vs. visible.size.height :-) */
typedef struct {
int y, x, h, w;
} myRect;
typedef struct W_Text {
W_Class widgetClass; /* the class number of this widget */
W_View *view; /* the view referring to this instance */
WMRuler *ruler; /* the ruler widget to manipulate paragraphs */
WMScroller *vS; /* the vertical scroller */
unsigned int vpos; /* the current vertical position */
unsigned int prevVpos; /* the previous vertical position */
WMScroller *hS; /* the horizontal scroller */
unsigned int hpos; /* the current horizontal position */
unsigned int prevHpos; /* the previous horizontal position */
WMFont *dFont; /* the default font */
WMColor *dColor; /* the default color */
WMPixmap *dBulletPix; /* the default pixmap for bullets */
GC bgGC; /* the background GC to draw with */
GC fgGC; /* the foreground GC to draw with */
Pixmap db; /* the buffer on which to draw */
WMPixmap *bgPixmap; /* the background pixmap */
myRect visible; /* the actual rectangle that can be drawn into */
myRect cursor; /* the position and (height) of cursor */
myRect sel; /* the selection rectangle */
WMPoint clicked; /* where in the _document_ was clicked */
unsigned short tpos; /* the position in the currentTextBlock */
unsigned short docWidth; /* the width of the entire document */
unsigned int docHeight; /* the height of the entire document */
TextBlock *firstTextBlock;
TextBlock *lastTextBlock;
TextBlock *currentTextBlock;
WMArray *gfxItems; /* a nice array of graphic items */
#if DO_BLINK
WMHandlerID timerID; /* for nice twinky-winky */
#endif
WMAction *parser;
WMAction *writer;
WMTextDelegate *delegate;
Time lastClickTime;
WMRulerMargins *margins; /* an array of margins */
unsigned int nMargins:7; /* the total number of margins in use */
struct {
unsigned int monoFont:1; /* whether to ignore formats and graphic */
unsigned int focused:1; /* whether this instance has input focus */
unsigned int editable:1; /* "silly user, you can't edit me" */
unsigned int ownsSelection:1; /* "I ownz the current selection!" */
unsigned int pointerGrabbed:1;/* "heh, gib me pointer" */
unsigned int extendSelection:1; /* shift-drag to select more regions */
unsigned int rulerShown:1; /* whether the ruler is shown or not */
unsigned int frozen:1; /* whether screen updates are to be made */
unsigned int cursorShown:1; /* whether to show the cursor */
unsigned int acceptsGraphic:1;/* accept graphic when dropped */
unsigned int horizOnDemand:1;/* if a large image should appear*/
unsigned int needsLayOut:1; /* in case of Append/Deletes */
unsigned int ignoreNewLine:1;/* turn it into a ' ' in streams > 1 */
unsigned int indentNewLine:1;/* add " " for a newline typed */
unsigned int laidOut:1; /* have the TextBlocks all been laid out */
unsigned int waitingForSelection:1; /* I don't wanna wait in vain... */
unsigned int prepend:1; /* prepend=1, append=0 (for parsers) */
WMAlignment alignment:2; /* the alignment for text */
WMReliefType relief:3; /* the relief to display with */
unsigned int isOverGraphic:2;/* the mouse is over a graphic */
unsigned int first:1; /* for plain text parsing, newline? */
/* unsigned int RESERVED:1; */
} flags;
} Text;
#define NOTIFY(T,C,N,A) { WMNotification *notif = WMCreateNotification(N,T,A);\
if ((T)->delegate && (T)->delegate->C)\
(*(T)->delegate->C)((T)->delegate,notif);\
WMPostNotification(notif);\
WMReleaseNotification(notif);}
#define TYPETEXT 0
static void
output(char *ptr, int len)
{
char s[len+1];
memcpy(s, ptr, len);
s[len] = 0;
/* printf(" s is [%s] (%d)\n", s, strlen(s)); */
printf("[%s]\n", s);
}
#if DO_BLINK
#define CURSOR_BLINK_ON_DELAY 600
#define CURSOR_BLINK_OFF_DELAY 400
#endif
static char *default_bullet[] = {
"6 6 4 1",
" c None s None", ". c black",
"X c white", "o c #808080",
" ... ",
".XX.. ",
".XX..o",
".....o",
" ...oo",
" ooo "};
static void handleEvents(XEvent *event, void *data);
static void layOutDocument(Text *tPtr);
static void updateScrollers(Text *tPtr);
static int
getMarginNumber(Text *tPtr, WMRulerMargins *margins)
{
unsigned int i=0;
for(i=0; i < tPtr->nMargins; i++) {
if(WMIsMarginEqualToMargin(&tPtr->margins[i], margins))
return i;
}
return -1;
}
static int
newMargin(Text *tPtr, WMRulerMargins *margins)
{
int n;
if (!margins) {
tPtr->margins[0].retainCount++;
return 0;
}
n = getMarginNumber(tPtr, margins);
if (n == -1) {
if(tPtr->nMargins >= 127) {
n = tPtr->nMargins-1;
return n;
}
tPtr->margins = wrealloc(tPtr->margins,
(++tPtr->nMargins)*sizeof(WMRulerMargins));
n = tPtr->nMargins-1;
tPtr->margins[n].left = margins->left;
tPtr->margins[n].first = margins->first;
tPtr->margins[n].body = margins->body;
tPtr->margins[n].right = margins->right;
/* for each tab... */
tPtr->margins[n].retainCount = 1;
} else {
tPtr->margins[n].retainCount++;
}
return n;
}
static Bool
sectionWasSelected(Text *tPtr, TextBlock *tb, XRectangle *rect, int s)
{
unsigned short i, w, lw, selected = False, extend = False;
myRect sel;
/* if selection rectangle completely encloses the section */
if ((tb->sections[s]._y >= tPtr->visible.y + tPtr->sel.y)
&& (tb->sections[s]._y + tb->sections[s].h
<= tPtr->visible.y + tPtr->sel.y + tPtr->sel.h) ) {
sel.x = 0;
sel.w = tPtr->visible.w;
selected = extend = True;
/* or if it starts on a line and then goes further down */
} else if ((tb->sections[s]._y <= tPtr->visible.y + tPtr->sel.y)
&& (tb->sections[s]._y + tb->sections[s].h
<= tPtr->visible.y + tPtr->sel.y + tPtr->sel.h)
&& (tb->sections[s]._y + tb->sections[s].h
>= tPtr->visible.y + tPtr->sel.y) ) {
sel.x = WMAX(tPtr->sel.x, tPtr->clicked.x);
sel.w = tPtr->visible.w;
selected = extend = True;
/* or if it begins before a line, but ends on it */
} else if ((tb->sections[s]._y >= tPtr->visible.y + tPtr->sel.y)
&& (tb->sections[s]._y + tb->sections[s].h
>= tPtr->visible.y + tPtr->sel.y + tPtr->sel.h)
&& (tb->sections[s]._y
<= tPtr->visible.y + tPtr->sel.y + tPtr->sel.h) ) {
if (1||tPtr->sel.x + tPtr->sel.w > tPtr->clicked.x)
sel.w = tPtr->sel.x + tPtr->sel.w;
else
sel.w = tPtr->sel.x;
sel.x = 0;
selected = True;
/* or if the selection rectangle lies entirely within a line */
} else if ((tb->sections[s]._y <= tPtr->visible.y + tPtr->sel.y)
&& (tPtr->sel.w >= 2)
&& (tb->sections[s]._y + tb->sections[s].h
>= tPtr->visible.y + tPtr->sel.y + tPtr->sel.h) ) {
sel.x = tPtr->sel.x;
sel.w = tPtr->sel.w;
selected = True;
}
if (selected) {
selected = False;
/* if not within (modified) selection rectangle */
if ( tb->sections[s].x > sel.x + sel.w
|| tb->sections[s].x + tb->sections[s].w < sel.x)
return False;
if (tb->graphic) {
if ( tb->sections[s].x + tb->sections[s].w <= sel.x + sel.w
&& tb->sections[s].x >= sel.x) {
rect->width = tb->sections[s].w;
rect->x = tb->sections[s].x;
selected = True;
}
} else {
i = tb->sections[s].begin;
lw = 0;
if (0&& tb->sections[s].x >= sel.x) {
tb->s_begin = tb->sections[s].begin;
goto _selEnd;
}
while (++i <= tb->sections[s].end) {
w = WMWidthOfString(tb->d.font, &(tb->text[i-1]), 1);
lw += w;
if (lw + tb->sections[s].x >= sel.x
|| i == tb->sections[s].end ) {
lw -= w;
i--;
tb->s_begin = (tb->selected? WMIN(tb->s_begin, i) : i);
break;
}
}
if (i > tb->sections[s].end) {
printf("WasSelected: (i > tb->sections[s].end) \n");
return False;
}
_selEnd: rect->x = tb->sections[s].x + lw;
lw = 0;
while(++i <= tb->sections[s].end) {
w = WMWidthOfString(tb->d.font, &(tb->text[i-1]), 1);
lw += w;
if (lw + rect->x >= sel.x + sel.w
|| i == tb->sections[s].end ) {
if (i != tb->sections[s].end) {
lw -= w;
i--;
}
rect->width = lw;
if (tb->sections[s].last && sel.x + sel.w
>= tb->sections[s].x + tb->sections[s].w
&& extend ) {
rect->width += (tPtr->visible.w - rect->x - lw);
}
tb->s_end = (tb->selected? WMAX(tb->s_end, i) : i);
selected = True;
break;
} } } }
if (selected) {
rect->y = tb->sections[s]._y - tPtr->vpos;
rect->height = tb->sections[s].h;
if(tb->graphic) { printf("graphic s%d h%d\n", s,tb->sections[s].h);}
}
return selected;
}
static void
setSelectionProperty(WMText *tPtr, WMFont *font, WMColor *color, int underlined)
{
TextBlock *tb;
int isFont=False;
tb = tPtr->firstTextBlock;
if (!tb || !tPtr->flags.ownsSelection)
return;
if(font && (!color || underlined==-1))
isFont = True;
while (tb) {
if (tPtr->flags.monoFont || tb->selected) {
if (tPtr->flags.monoFont || (tb->s_end - tb->s_begin == tb->used)
|| tb->graphic) {
if(isFont) {
if(!tb->graphic) {
WMReleaseFont(tb->d.font);
tb->d.font = WMRetainFont(font);
}
} else if(underlined !=-1) {
tb->underlined = underlined;
} else {
WMReleaseColor(tb->color);
tb->color = WMRetainColor(color);
}
} else if (tb->s_end <= tb->used && tb->s_begin < tb->s_end) {
TextBlock *midtb, *otb = tb;
if(underlined != -1) {
midtb = (TextBlock *) WMCreateTextBlockWithText(tPtr,
&(tb->text[tb->s_begin]), tb->d.font, tb->color,
False, (tb->s_end - tb->s_begin));
} else {
midtb = (TextBlock *) WMCreateTextBlockWithText(tPtr,
&(tb->text[tb->s_begin]),
(isFont?font:tb->d.font),
(isFont?tb->color:color),
False, (tb->s_end - tb->s_begin));
}
if (midtb) {
if(underlined != -1) {
midtb->underlined = underlined;
} else {
midtb->underlined = otb->underlined;
}
midtb->selected = !True;
midtb->s_begin = 0;
midtb->s_end = midtb->used;
tPtr->currentTextBlock = tb;
WMAppendTextBlock(tPtr, midtb);
tb = tPtr->currentTextBlock;
}
if (otb->used - otb->s_end > 0) {
TextBlock *ntb;
ntb = (TextBlock *)
WMCreateTextBlockWithText(tPtr,
&(otb->text[otb->s_end]), otb->d.font, otb->color,
False, otb->used - otb->s_end);
if (ntb) {
ntb->underlined = otb->underlined;
ntb->selected = False;
WMAppendTextBlock(tPtr, ntb);
tb = tPtr->currentTextBlock;
}
}
if (midtb) {
tPtr->currentTextBlock = midtb;
}
otb->selected = False;
otb->used = otb->s_begin;
}
}
tb = tb->next;
}
tPtr->flags.needsLayOut = True;
WMThawText(tPtr);
/* in case the size changed... */
if(isFont && tPtr->currentTextBlock) {
TextBlock *tb = tPtr->currentTextBlock;
printf("%d %d %d\n", tPtr->sel.y, tPtr->sel.h, tPtr->sel.w);
tPtr->sel.y = 3 + tb->sections[0]._y;
tPtr->sel.h = tb->sections[tb->nsections-1]._y - tb->sections[0]._y;
tPtr->sel.w = tb->sections[tb->nsections-1].w;
if(tb->sections[tb->nsections-1]._y != tb->sections[0]._y) {
tPtr->sel.x = 0;
}
printf("%d %d %d\n\n\n", tPtr->sel.y, tPtr->sel.h, tPtr->sel.w);
}
}
static Bool
removeSelection(Text *tPtr)
{
TextBlock *tb = NULL;
Bool first = False;
if (!(tb = tPtr->firstTextBlock))
return False;
while (tb) {
if (tb->selected) {
if(!first && !tb->graphic) {
WMReleaseFont(tPtr->dFont);
tPtr->dFont = WMRetainFont(tb->d.font);
first = True;
}
if ( (tb->s_end - tb->s_begin == tb->used) || tb->graphic) {
tPtr->currentTextBlock = tb;
WMDestroyTextBlock(tPtr, WMRemoveTextBlock(tPtr));
tb = tPtr->currentTextBlock;
if (tb)
tPtr->tpos = 0;
continue;
} else if (tb->s_end <= tb->used) {
memmove(&(tb->text[tb->s_begin]),
&(tb->text[tb->s_end]), tb->used - tb->s_end);
tb->used -= (tb->s_end - tb->s_begin);
tb->selected = False;
tPtr->tpos = tb->s_begin;
}
}
tb = tb->next;
}
return True;
}
static TextBlock *
getFirstNonGraphicBlockFor(TextBlock *tb, short dir)
{
TextBlock *hold = tb;
if (!tb)
return NULL;
while (tb) {
if (!tb->graphic)
break;
tb = (dir? tb->next : tb->prior);
}
if(!tb) {
tb = hold;
while (tb) {
if (!tb->graphic)
break;
tb = (dir? tb->prior : tb->next);
}
}
if(!tb)
return NULL;
return tb;
}
static Bool
updateStartForCurrentTextBlock(Text *tPtr, int x, int y, int *dir,
TextBlock *tb)
{
if (tPtr->flags.monoFont && tb->graphic) {
tb = getFirstNonGraphicBlockFor(tb, *dir);
if(!tb)
return 0;
if (tb->graphic) {
tPtr->currentTextBlock =
(dir? tPtr->lastTextBlock : tPtr->firstTextBlock);
tPtr->tpos = 0;
return 0;
}
}
if(!tb->sections)
layOutDocument(tPtr);
if(!tb->sections)
return 0;
*dir = !(y <= tb->sections[0].y);
if(*dir) {
if ( ( y <= tb->sections[0]._y + tb->sections[0].h )
&& (y >= tb->sections[0]._y ) ) {
/* if it's on the same line */
if(x < tb->sections[0].x)
*dir = 0;
}
} else {
if ( ( y <= tb->sections[tb->nsections-1]._y
+ tb->sections[tb->nsections-1].h )
&& (y >= tb->sections[tb->nsections-1]._y ) ) {
/* if it's on the same line */
if(x > tb->sections[tb->nsections-1].x)
*dir = 1;
}
}
return 1;
}
static void
paintText(Text *tPtr)
{
TextBlock *tb;
WMFont *font;
GC gc, greyGC;
char *text;
int len, y, c, s, done=False, prev_y=-23, dir /* 1 = down */;
WMScreen *scr = tPtr->view->screen;
Display *dpy = tPtr->view->screen->display;
Window win = tPtr->view->window;
if (!tPtr->view->flags.realized || !tPtr->db || tPtr->flags.frozen)
return;
XFillRectangle(dpy, tPtr->db, tPtr->bgGC,
0, 0, tPtr->visible.w, tPtr->visible.h);
if (tPtr->bgPixmap) {
WMDrawPixmap(tPtr->bgPixmap, tPtr->db,
(tPtr->visible.w-tPtr->visible.x-tPtr->bgPixmap->width)/2,
(tPtr->visible.h-tPtr->visible.y-tPtr->bgPixmap->height)/2);
}
if (! (tb = tPtr->currentTextBlock)) {
if (! (tb = tPtr->firstTextBlock)) {
goto _copy_area;
}
}
if (tPtr->flags.ownsSelection)
greyGC = WMColorGC(WMGrayColor(scr));
done = False;
/* first, which direction? Don't waste time looking all over,
since the parts to be drawn will most likely be near what
was previously drawn */
if(!updateStartForCurrentTextBlock(tPtr, 0, tPtr->vpos, &dir, tb))
goto _copy_area;
while(tb) {
if (tb->graphic && tPtr->flags.monoFont)
goto _getSibling;
if(dir) {
if(tPtr->vpos <= tb->sections[tb->nsections-1]._y
+ tb->sections[tb->nsections-1].h)
break;
} else {
if(tPtr->vpos >= tb->sections[tb->nsections-1]._y
+ tb->sections[tb->nsections-1].h)
break;
}
_getSibling:
if(dir) {
if(tb->next)
tb = tb->next;
else break;
} else {
if(tb->prior)
tb = tb->prior;
else break;
}
}
/* first, place all text that can be viewed */
while (!done && tb) {
/* paragraph diagnostic
if(tb->blank) {tb->text[0] = 'F'; } */
if (tb->graphic) {
tb = tb->next;
continue;
}
tb->selected = False;
for(s=0; s<tb->nsections && !done; s++) {
if (tb->sections[s]._y > tPtr->vpos + tPtr->visible.h) {
done = True;
break;
}
if ( tb->sections[s].y + tb->sections[s].h < tPtr->vpos)
continue;
if (tPtr->flags.monoFont) {
font = tPtr->dFont;
gc = tPtr->fgGC;
} else {
font = tb->d.font;
gc = WMColorGC(tb->color);
}
if (tPtr->flags.ownsSelection) {
XRectangle rect;
if ( sectionWasSelected(tPtr, tb, &rect, s)) {
tb->selected = True;
XFillRectangle(dpy, tPtr->db, greyGC,
rect.x, rect.y, rect.width, rect.height);
}
}
prev_y = tb->sections[s]._y;
len = tb->sections[s].end - tb->sections[s].begin;
text = &(tb->text[tb->sections[s].begin]);
y = tb->sections[s].y - tPtr->vpos;
WMDrawString(scr, tPtr->db, gc, font,
tb->sections[s].x - tPtr->hpos, y, text, len);
if (!tPtr->flags.monoFont && tb->underlined) {
XDrawLine(dpy, tPtr->db, gc,
tb->sections[s].x - tPtr->hpos,
y + font->y + 1,
tb->sections[s].x + tb->sections[s].w - tPtr->hpos,
y + font->y + 1);
}
}
tb = (!done? tb->next : NULL);
}
/* now , show all graphic items that can be viewed */
c = WMGetArrayItemCount(tPtr->gfxItems);
if (c > 0 && !tPtr->flags.monoFont) {
int j, h;
for(j=0; j<c; j++) {
tb = (TextBlock *) WMGetFromArray(tPtr->gfxItems, j);
/* if it's not viewable, and mapped, unmap it */
if (tb->sections[0]._y + tb->sections[0].h <= tPtr->vpos
|| tb->sections[0]._y >= tPtr->vpos + tPtr->visible.h ) {
if(tb->object) {
if ((W_VIEW(tb->d.widget))->flags.mapped) {
WMUnmapWidget(tb->d.widget);
}
}
} else {
/* if it's viewable, and not mapped, map it */
if(tb->object) {
W_View *view = W_VIEW(tb->d.widget);
if (!view->flags.realized)
WMRealizeWidget(tb->d.widget);
if(!view->flags.mapped) {
XMapWindow(view->screen->display, view->window);
XFlush(view->screen->display);
view->flags.mapped = 1;
}
}
if (tPtr->flags.ownsSelection) {
XRectangle rect;
if ( sectionWasSelected(tPtr, tb, &rect, 0)) {
tb->selected = True;
XFillRectangle(dpy, tPtr->db, greyGC,
rect.x, rect.y, rect.width, rect.height);
}
}
if(tb->object) {
WMMoveWidget(tb->d.widget,
tb->sections[0].x + tPtr->visible.x - tPtr->hpos,
tb->sections[0].y + tPtr->visible.y - tPtr->vpos);
h = WMWidgetHeight(tb->d.widget) + 1;
} else {
WMDrawPixmap(tb->d.pixmap, tPtr->db,
tb->sections[0].x - tPtr->hpos,
tb->sections[0].y - tPtr->vpos);
h = tb->d.pixmap->height + 1;
}
if (!tPtr->flags.monoFont && tb->underlined) {
XDrawLine(dpy, tPtr->db, WMColorGC(tb->color),
tb->sections[0].x - tPtr->hpos,
tb->sections[0].y + h - tPtr->vpos,
tb->sections[0].x + tb->sections[0].w - tPtr->hpos,
tb->sections[0].y + h - tPtr->vpos);
} } } }
_copy_area:
if (tPtr->flags.editable && tPtr->flags.cursorShown
&& tPtr->cursor.x != -23 && tPtr->flags.focused) {
int y = tPtr->cursor.y - tPtr->vpos;
XDrawLine(dpy, tPtr->db, tPtr->fgGC,
tPtr->cursor.x, y,
tPtr->cursor.x, y + tPtr->cursor.h);
}
XCopyArea(dpy, tPtr->db, win, tPtr->bgGC, 0, 0,
tPtr->visible.w, tPtr->visible.h,
tPtr->visible.x, tPtr->visible.y);
W_DrawRelief(scr, win, 0, 0,
tPtr->view->size.width, tPtr->view->size.height,
tPtr->flags.relief);
if (tPtr->ruler && tPtr->flags.rulerShown)
XDrawLine(dpy, win, tPtr->fgGC,
2, 42, tPtr->view->size.width-4, 42);
}
static void
mouseOverObject(Text *tPtr, int x, int y)
{
TextBlock *tb;
Bool result = False;
x -= tPtr->visible.x;
x += tPtr->hpos;
y -= tPtr->visible.y;
y += tPtr->vpos;
if(tPtr->flags.ownsSelection) {
if(tPtr->sel.x <= x
&& tPtr->sel.y <= y
&& tPtr->sel.x + tPtr->sel.w >= x
&& tPtr->sel.y + tPtr->sel.h >= y) {
tPtr->flags.isOverGraphic = 1;
result = True;
}
}
if(!result) {
int j, c = WMGetArrayItemCount(tPtr->gfxItems);
if (c<1)
tPtr->flags.isOverGraphic = 0;
for(j=0; j<c; j++) {
tb = (TextBlock *) WMGetFromArray(tPtr->gfxItems, j);
if(!tb || !tb->sections) {
tPtr->flags.isOverGraphic = 0;
return;
}
if(!tb->object) {
if(tb->sections[0].x <= x
&& tb->sections[0].y <= y
&& tb->sections[0].x + tb->sections[0].w >= x
&& tb->sections[0].y + tb->d.pixmap->height >= y ) {
tPtr->flags.isOverGraphic = 3;
result = True;
break;
}
}
}
}
if(!result)
tPtr->flags.isOverGraphic = 0;
tPtr->view->attribs.cursor = (result?
tPtr->view->screen->defaultCursor
: tPtr->view->screen->textCursor);
{
XSetWindowAttributes attribs;
attribs.cursor = tPtr->view->attribs.cursor;
XChangeWindowAttributes(tPtr->view->screen->display,
tPtr->view->window, CWCursor,
&attribs);
}
}
#if DO_BLINK
static void
blinkCursor(void *data)
{
Text *tPtr = (Text*)data;
if (tPtr->flags.cursorShown) {
tPtr->timerID = WMAddTimerHandler(CURSOR_BLINK_OFF_DELAY,
blinkCursor, data);
} else {
tPtr->timerID = WMAddTimerHandler(CURSOR_BLINK_ON_DELAY,
blinkCursor, data);
}
paintText(tPtr);
tPtr->flags.cursorShown = !tPtr->flags.cursorShown;
}
#endif
static void
updateCursorPosition(Text *tPtr)
{
TextBlock *tb = NULL;
int x, y, h, s;
if(tPtr->flags.needsLayOut)
layOutDocument(tPtr);
if (! (tb = tPtr->currentTextBlock)) {
if (! (tb = tPtr->firstTextBlock)) {
tPtr->tpos = 0;
tPtr->cursor.h = tPtr->dFont->height;
tPtr->cursor.y = 2;
tPtr->cursor.x = 2;
return;
}
}
if(tb->blank) {
tPtr->tpos = 0;
y = tb->sections[0].y;
h = tb->sections[0].h;
x = tb->sections[0].x;
} else if(tb->graphic) {
y = tb->sections[0].y;
h = tb->sections[0].h;
x = tb->sections[0].x;
} else {
if(tPtr->tpos > tb->used)
tPtr->tpos = tb->used;
for(s=0; s<tb->nsections-1; s++) {
if(tPtr->tpos >= tb->sections[s].begin
&& tPtr->tpos <= tb->sections[s].end)
break;
}
y = tb->sections[s]._y;
h = tb->sections[s].h;
x = tb->sections[s].x + WMWidthOfString(
(tPtr->flags.monoFont?tPtr->dFont:tb->d.font),
&tb->text[tb->sections[s].begin],
tPtr->tpos - tb->sections[s].begin);
}
tPtr->cursor.y = y;
tPtr->cursor.h = h;
tPtr->cursor.x = x;
/* scroll the bars if the cursor is not visible */
if(tPtr->flags.editable && tPtr->cursor.x != -23) {
if(tPtr->cursor.y+tPtr->cursor.h
> tPtr->vpos+tPtr->visible.y+tPtr->visible.h) {
tPtr->vpos +=
(tPtr->cursor.y+tPtr->cursor.h+10
- (tPtr->vpos+tPtr->visible.y+tPtr->visible.h));
} else if(tPtr->cursor.y < tPtr->vpos+tPtr->visible.y) {
tPtr->vpos -= (tPtr->vpos+tPtr->visible.y-tPtr->cursor.y);
}
}
updateScrollers(tPtr);
}
static void
cursorToTextPosition(Text *tPtr, int x, int y)
{
TextBlock *tb = NULL;
int done=False, s, pos, len, _w, _y, dir=1; /* 1 == "down" */
char *text;
if(tPtr->flags.needsLayOut)
layOutDocument(tPtr);
y += (tPtr->vpos - tPtr->visible.y);
if (y<0)
y = 0;
x -= (tPtr->visible.x - 2);
if (x<0)
x=0;
/* clicked is relative to document, not window... */
tPtr->clicked.x = x;
tPtr->clicked.y = y;
if (! (tb = tPtr->currentTextBlock)) {
if (! (tb = tPtr->firstTextBlock)) {
tPtr->tpos = 0;
tPtr->cursor.h = tPtr->dFont->height;
tPtr->cursor.y = 2;
tPtr->cursor.x = 2;
return;
}
}
/* first, which direction? Most likely, newly clicked
position will be close to previous */
if(!updateStartForCurrentTextBlock(tPtr, x, y, &dir, tb))
return;
s = (dir? 0 : tb->nsections-1);
if ( y >= tb->sections[s]._y
&& y <= tb->sections[s]._y + tb->sections[s].h) {
goto _doneV;
}
/* get the first (or last) section of the TextBlock that
lies about the vertical click point */
done = False;
while (!done && tb) {
if (tPtr->flags.monoFont && tb->graphic) {
if( (dir?tb->next:tb->prior))
tb = (dir?tb->next:tb->prior);
continue;
}
s = (dir? 0 : tb->nsections-1);
while (!done && (dir? (s<tb->nsections) : (s>=0) )) {
if ( (dir? (y <= tb->sections[s]._y + tb->sections[s].h) :
( y >= tb->sections[s]._y ) ) ) {
done = True;
} else {
dir? s++ : s--;
}
}
if (!done) {
if ( (dir? tb->next : tb->prior)) {
tb = (dir ? tb->next : tb->prior);
} else {
pos = tb->used;
break; /* goto _doneH; */
}
}
}
if (s<0 || s>=tb->nsections) {
s = (dir? tb->nsections-1 : 0);
}
_doneV:
/* we have the line, which TextBlock on that line is it? */
pos = (dir?0:tb->sections[s].begin);
if (tPtr->flags.monoFont && tb->graphic) {
TextBlock *hold = tb;
tb = getFirstNonGraphicBlockFor(hold, dir);
if(!tb) {
tPtr->tpos = 0;
tb = hold;
s = 0;
goto _doNothing;
}
}
if(tb->blank)
_w = 0;
_y = tb->sections[s]._y;
while (tb) {
if (tPtr->flags.monoFont && tb->graphic) {
tb = (dir ? tb->next : tb->prior);
continue;
}
if (dir) {
if (tb->graphic) {
if(tb->object)
_w = WMWidgetWidth(tb->d.widget)-5;
else
_w = tb->d.pixmap->width-5;
if (tb->sections[0].x + _w >= x)
break;
} else {
text = &(tb->text[tb->sections[s].begin]);
len = tb->sections[s].end - tb->sections[s].begin;
_w = WMWidthOfString(tb->d.font, text, len);
if (tb->sections[s].x + _w >= x)
break;
}
} else {
if (tb->sections[s].x <= x)
break;
}
if ((dir? tb->next : tb->prior)) {
TextBlock *nxt = (dir? tb->next : tb->prior);
if (tPtr->flags.monoFont && nxt->graphic) {
nxt = getFirstNonGraphicBlockFor(nxt, dir);
if (!nxt) {
pos = (dir?0:tb->sections[s].begin);
tPtr->cursor.x = tb->sections[s].x;
goto _doneH;
}
}
if (_y != nxt->sections[dir?0:nxt->nsections-1]._y) {
/* this must be the last/first on this line. stop */
pos = (dir? tb->sections[s].end : 0);
tPtr->cursor.x = tb->sections[s].x;
if (!tb->blank) {
if (tb->graphic) {
if(tb->object)
tPtr->cursor.x += WMWidgetWidth(tb->d.widget);
else
tPtr->cursor.x += tb->d.pixmap->width;
} else if (pos > tb->sections[s].begin) {
tPtr->cursor.x +=
WMWidthOfString(tb->d.font,
&(tb->text[tb->sections[s].begin]),
pos - tb->sections[s].begin);
}
}
goto _doneH;
}
}
if ( (dir? tb->next : tb->prior)) {
tb = (dir ? tb->next : tb->prior);
} else {
done = True;
break;
}
if (tb)
s = (dir? 0 : tb->nsections-1);
}
/* we have said TextBlock, now where within it? */
if (tb) {
if(tb->graphic) {
int gw = (tb->object ?
WMWidgetWidth(tb->d.widget) : tb->d.pixmap->width);
tPtr->cursor.x = tb->sections[0].x;
if(x > tPtr->cursor.x + gw/2) {
pos = 1;
printf("here x%d: %d\n", x, tPtr->cursor.x + gw/2);
tPtr->cursor.x += gw;
} else pos = 0;
s = 0;
goto _doneH;
} else {
WMFont *f = tb->d.font;
len = tb->sections[s].end - tb->sections[s].begin;
text = &(tb->text[tb->sections[s].begin]);
_w = x - tb->sections[s].x;
pos = 0;
while (pos<len && WMWidthOfString(f, text, pos+1) < _w)
pos++;
tPtr->cursor.x = tb->sections[s].x +
(pos? WMWidthOfString(f, text, pos) : 0);
pos += tb->sections[s].begin;
}
}
_doneH:
tPtr->tpos = (pos<tb->used)? pos : tb->used;
_doNothing:
if (!tb)
printf("...for this app will surely crash :-)\n");
tPtr->currentTextBlock = tb;
tPtr->cursor.h = tb->sections[s].h;
tPtr->cursor.y = tb->sections[s]._y;
/* scroll the bars if the cursor is not visible */
if(tPtr->flags.editable && tPtr->cursor.x != -23) {
if(tPtr->cursor.y+tPtr->cursor.h
> tPtr->vpos+tPtr->visible.y+tPtr->visible.h) {
tPtr->vpos +=
(tPtr->cursor.y+tPtr->cursor.h+10
- (tPtr->vpos+tPtr->visible.y+tPtr->visible.h));
updateScrollers(tPtr);
} else if(tPtr->cursor.y < tPtr->vpos+tPtr->visible.y) {
tPtr->vpos -= (tPtr->vpos+tPtr->visible.y-tPtr->cursor.y);
updateScrollers(tPtr);
}
}
}
static void
updateScrollers(Text *tPtr)
{
if (tPtr->flags.frozen)
return;
if (tPtr->vS) {
if (tPtr->docHeight < tPtr->visible.h) {
WMSetScrollerParameters(tPtr->vS, 0, 1);
tPtr->vpos = 0;
} else {
float hmax = (float)(tPtr->docHeight);
WMSetScrollerParameters(tPtr->vS,
((float)tPtr->vpos)/(hmax - (float)tPtr->visible.h),
(float)tPtr->visible.h/hmax);
}
} else tPtr->vpos = 0;
if (tPtr->hS) {
if (tPtr->docWidth < tPtr->visible.w) {
WMSetScrollerParameters(tPtr->hS, 0, 1);
tPtr->hpos = 0;
} else {
float wmax = (float)(tPtr->docWidth);
WMSetScrollerParameters(tPtr->hS,
((float)tPtr->hpos)/(wmax - (float)tPtr->visible.w),
(float)tPtr->visible.w/wmax);
}
} else tPtr->hpos = 0;
}
static void
scrollersCallBack(WMWidget *w, void *self)
{
Text *tPtr = (Text *)self;
Bool scroll = False;
int which;
if (!tPtr->view->flags.realized || tPtr->flags.frozen)
return;
if (w == tPtr->vS) {
int height;
height = tPtr->visible.h;
which = WMGetScrollerHitPart(tPtr->vS);
switch(which) {
case WSDecrementLine:
if (tPtr->vpos > 0) {
if (tPtr->vpos>16) tPtr->vpos-=16;
else tPtr->vpos=0;
scroll=True;
}
break;
case WSIncrementLine: {
int limit = tPtr->docHeight - height;
if (tPtr->vpos < limit) {
if (tPtr->vpos<limit-16) tPtr->vpos+=16;
else tPtr->vpos=limit;
scroll = True;
}
}
break;
case WSDecrementPage:
if(((int)tPtr->vpos - (int)height) >= 0)
tPtr->vpos -= height;
else
tPtr->vpos = 0;
scroll = True;
break;
case WSIncrementPage:
tPtr->vpos += height;
if (tPtr->vpos > (tPtr->docHeight - height))
tPtr->vpos = tPtr->docHeight - height;
scroll = True;
break;
case WSKnob:
tPtr->vpos = WMGetScrollerValue(tPtr->vS)
* (float)(tPtr->docHeight - height);
scroll = True;
break;
case WSKnobSlot:
case WSNoPart:
break;
}
scroll = (tPtr->vpos != tPtr->prevVpos);
tPtr->prevVpos = tPtr->vpos;
}
if (w == tPtr->hS) {
int width = tPtr->visible.w;
which = WMGetScrollerHitPart(tPtr->hS);
switch(which) {
case WSDecrementLine:
if (tPtr->hpos > 0) {
if (tPtr->hpos>16) tPtr->hpos-=16;
else tPtr->hpos=0;
scroll=True;
}break;
case WSIncrementLine: {
int limit = tPtr->docWidth - width;
if (tPtr->hpos < limit) {
if (tPtr->hpos<limit-16) tPtr->hpos+=16;
else tPtr->hpos=limit;
scroll = True;
}}break;
case WSDecrementPage:
if(((int)tPtr->hpos - (int)width) >= 0)
tPtr->hpos -= width;
else
tPtr->hpos = 0;
scroll = True;
break;
case WSIncrementPage:
tPtr->hpos += width;
if (tPtr->hpos > (tPtr->docWidth - width))
tPtr->hpos = tPtr->docWidth - width;
scroll = True;
break;
case WSKnob:
tPtr->hpos = WMGetScrollerValue(tPtr->hS)
* (float)(tPtr->docWidth - width);
scroll = True;
break;
case WSKnobSlot:
case WSNoPart:
break;
}
scroll = (tPtr->hpos != tPtr->prevHpos);
tPtr->prevHpos = tPtr->hpos;
}
if (scroll) {
updateScrollers(tPtr);
paintText(tPtr);
}
}
typedef struct {
TextBlock *tb;
unsigned short begin, end; /* what part of the text block */
} myLineItems;
static int
layOutLine(Text *tPtr, myLineItems *items, int nitems, int x, int y)
{
int i, j=0, lw = 0, line_height=0, max_d=0, len, n;
WMFont *font;
char *text;
TextBlock *tb, *tbsame=NULL;
if(!items || nitems == 0)
return 0;
for(i=0; i<nitems; i++) {
tb = items[i].tb;
if (tb->graphic) {
if (!tPtr->flags.monoFont) {
if(tb->object) {
WMWidget *wdt = tb->d.widget;
line_height = WMAX(line_height, WMWidgetHeight(wdt));
if (tPtr->flags.alignment != WALeft)
lw += WMWidgetWidth(wdt);
} else {
line_height = WMAX(line_height,
tb->d.pixmap->height + max_d);
if (tPtr->flags.alignment != WALeft)
lw += tb->d.pixmap->width;
}
}
} else {
font = (tPtr->flags.monoFont)?tPtr->dFont : tb->d.font;
max_d = WMAX(max_d, abs(font->height-font->y));
line_height = WMAX(line_height, font->height + max_d);
text = &(tb->text[items[i].begin]);
len = items[i].end - items[i].begin;
if (tPtr->flags.alignment != WALeft)
lw += WMWidthOfString(font, text, len);
}
}
if (tPtr->flags.alignment == WARight) {
j = tPtr->visible.w - lw;
} else if (tPtr->flags.alignment == WACenter) {
j = (int) ((float)(tPtr->visible.w - lw))/2.0;
}
for(i=0; i<nitems; i++) {
tb = items[i].tb;
if (tbsame == tb) { /* extend it, since it's on same line */
tb->sections[tb->nsections-1].end = items[i].end;
n = tb->nsections-1;
} else {
tb->sections = wrealloc(tb->sections,
(++tb->nsections)*sizeof(Section));
n = tb->nsections-1;
tb->sections[n]._y = y + max_d;
tb->sections[n].max_d = max_d;
tb->sections[n].x = x+j;
tb->sections[n].h = line_height;
tb->sections[n].begin = items[i].begin;
tb->sections[n].end = items[i].end;
}
tb->sections[n].last = (i+1 == nitems);
if (tb->graphic) {
if (!tPtr->flags.monoFont) {
if(tb->object) {
WMWidget *wdt = tb->d.widget;
tb->sections[n].y = max_d + y
+ line_height - WMWidgetHeight(wdt);
tb->sections[n].w = WMWidgetWidth(wdt);
} else {
tb->sections[n].y = y + line_height
+ max_d - tb->d.pixmap->height;
tb->sections[n].w = tb->d.pixmap->width;
}
x += tb->sections[n].w;
}
} else {
font = (tPtr->flags.monoFont)? tPtr->dFont : tb->d.font;
len = items[i].end - items[i].begin;
text = &(tb->text[items[i].begin]);
tb->sections[n].y = y+line_height-font->y;
tb->sections[n].w =
WMWidthOfString(font,
&(tb->text[tb->sections[n].begin]),
tb->sections[n].end - tb->sections[n].begin);
x += WMWidthOfString(font, text, len);
}
tbsame = tb;
}
return line_height;
}
static void
layOutDocument(Text *tPtr)
{
TextBlock *tb;
myLineItems *items = NULL;
unsigned int itemsSize=0, nitems=0, begin, end;
WMFont *font;
unsigned int x, y=0, lw = 0, width=0, bmargin;
char *start=NULL, *mark=NULL;
if ( tPtr->flags.frozen || (!(tb = tPtr->firstTextBlock)) )
return;
assert(tPtr->visible.w > 20);
tPtr->docWidth = tPtr->visible.w;
x = tPtr->margins[tb->marginN].first;
bmargin = tPtr->margins[tb->marginN].body;
/* only partial layOut needed: re-Lay only affected textblocks */
if (tPtr->flags.laidOut) {
tb = tPtr->currentTextBlock;
/* search backwards for textblocks on same line */
while (tb->prior) {
if (!tb->sections || tb->nsections<1) {
tb = tPtr->firstTextBlock;
tPtr->flags.laidOut = False;
y = 0;
goto _layOut;
}
if(!tb->prior->sections || tb->prior->nsections<1) {
tb = tPtr->firstTextBlock;
tPtr->flags.laidOut = False;
y = 0;
goto _layOut;
}
if (tb->sections[0]._y !=
tb->prior->sections[tb->prior->nsections-1]._y) {
break;
}
tb = tb->prior;
}
if(tb->prior && tb->prior->sections && tb->prior->nsections>0) {
y = tb->prior->sections[tb->prior->nsections-1]._y +
tb->prior->sections[tb->prior->nsections-1].h -
tb->prior->sections[tb->prior->nsections-1].max_d;
} else {
y = 0;
}
}
_layOut:
while (tb) {
if (tb->sections && tb->nsections>0) {
wfree(tb->sections);
tb->sections = NULL;
tb->nsections = 0;
}
if (tb->blank && tb->next && !tb->next->first) {
TextBlock *next = tb->next;
tPtr->currentTextBlock = tb;
WMDestroyTextBlock(tPtr, WMRemoveTextBlock(tPtr));
tb = next;
tb->first = True;
continue;
}
if (tb->first && tb != tPtr->firstTextBlock) {
y += layOutLine(tPtr, items, nitems, x, y);
x = tPtr->margins[tb->marginN].first;
bmargin = tPtr->margins[tb->marginN].body;
nitems = 0;
lw = 0;
}
if (tb->graphic) {
if (!tPtr->flags.monoFont) {
if(tb->object)
width = WMWidgetWidth(tb->d.widget);
else
width = tb->d.pixmap->width;
if (width > tPtr->docWidth)
tPtr->docWidth = width;
lw += width;
if (lw >= tPtr->visible.w - x ) {
y += layOutLine(tPtr, items, nitems, x, y);
nitems = 0;
x = bmargin;
lw = width;
}
if(nitems + 1> itemsSize) {
items = wrealloc(items,
(++itemsSize)*sizeof(myLineItems));
}
items[nitems].tb = tb;
items[nitems].begin = 0;
items[nitems].end = 0;
nitems++;
}
} else if ((start = tb->text)) {
begin = end = 0;
font = tPtr->flags.monoFont?tPtr->dFont:tb->d.font;
while (start) {
mark = strchr(start, ' ');
if (mark) {
end += (int)(mark-start)+1;
start = mark+1;
} else {
end += strlen(start);
start = mark;
}
if (end > tb->used)
end = tb->used;
if (end-begin > 0) {
width = WMWidthOfString(font,
&tb->text[begin], end-begin);
/* if it won't fit, char wrap it */
if (width >= tPtr->visible.w) {
char *t = &tb->text[begin];
int l=end-begin, i=0;
do {
width = WMWidthOfString(font, t, ++i);
} while (width < tPtr->visible.w && i < l);
if(i>2) i--;
end = begin+i;
start = &tb->text[end];
}
lw += width;
}
if (lw >= tPtr->visible.w - x) {
y += layOutLine(tPtr, items, nitems, x, y);
lw = width;
x = bmargin;
nitems = 0;
}
if(nitems + 1 > itemsSize) {
items = wrealloc(items,
(++itemsSize)*sizeof(myLineItems));
}
items[nitems].tb = tb;
items[nitems].begin = begin;
items[nitems].end = end;
nitems++;
begin = end;
}
}
/* not yet fully ready. but is already VERY FAST for a 3Mbyte file ;-) */
if(0&&tPtr->flags.laidOut
&& tb->next && tb->next->sections && tb->next->nsections>0
&& (tPtr->vpos + tPtr->visible.h
< tb->next->sections[0]._y)) {
if(tPtr->lastTextBlock->sections
&& tPtr->lastTextBlock->nsections > 0 ) {
TextBlock *ltb = tPtr->lastTextBlock;
int ly = ltb->sections[ltb->nsections-1]._y;
int lh = ltb->sections[ltb->nsections-1].h;
int ss, sd;
lh += 1 + tPtr->visible.y + ltb->sections[ltb->nsections-1].max_d;
printf("it's %d\n", tPtr->visible.y + ltb->sections[ltb->nsections-1].max_d);
y += layOutLine(tPtr, items, nitems, x, y);
ss= ly+lh-y;
sd = tPtr->docHeight-y;
printf("dif %d-%d: %d\n", ss, sd, ss-sd);
y += tb->next->sections[0]._y-y;
nitems = 0;
printf("nitems%d\n", nitems);
if(ss-sd!=0)
y = tPtr->docHeight+ss-sd;
break;
} else {
tPtr->flags.laidOut = False;
}
}
tb = tb->next;
}
if (nitems > 0)
y += layOutLine(tPtr, items, nitems, x, y);
if (tPtr->docHeight != y+10) {
tPtr->docHeight = y+10;
updateScrollers(tPtr);
}
if(tPtr->docWidth > tPtr->visible.w && !tPtr->hS) {
XEvent event;
tPtr->flags.horizOnDemand = True;
WMSetTextHasHorizontalScroller((WMText*)tPtr, True);
event.type = Expose;
handleEvents(&event, (void *)tPtr);
} else if(tPtr->docWidth <= tPtr->visible.w
&& tPtr->hS && tPtr->flags.horizOnDemand ) {
tPtr->flags.horizOnDemand = False;
WMSetTextHasHorizontalScroller((WMText*)tPtr, False);
}
tPtr->flags.laidOut = True;
if(items && itemsSize > 0)
wfree(items);
if (W_VIEW_REALIZED(tPtr->view) && W_VIEW_MAPPED(tPtr->view))
paintText(tPtr);
}
static void
textDidResize(W_ViewDelegate *self, WMView *view)
{
Text *tPtr = (Text *)view->self;
unsigned short w = tPtr->view->size.width;
unsigned short h = tPtr->view->size.height;
unsigned short rh = 0, vw = 0, rel;
rel = (tPtr->flags.relief == WRFlat);
if (tPtr->ruler && tPtr->flags.rulerShown) {
WMMoveWidget(tPtr->ruler, 2, 2);
WMResizeWidget(tPtr->ruler, w - 4, 40);
rh = 40;
}
if (tPtr->vS) {
WMMoveWidget(tPtr->vS, 1 - (rel?1:0), rh + 1 - (rel?1:0));
WMResizeWidget(tPtr->vS, 20, h - rh - 2 + (rel?2:0));
vw = 20;
WMSetRulerOffset(tPtr->ruler,22);
} else WMSetRulerOffset(tPtr->ruler, 2);
if (tPtr->hS) {
if (tPtr->vS) {
WMMoveWidget(tPtr->hS, vw, h - 21);
WMResizeWidget(tPtr->hS, w - vw - 1, 20);
} else {
WMMoveWidget(tPtr->hS, vw+1, h - 21);
WMResizeWidget(tPtr->hS, w - vw - 2, 20);
}
}
tPtr->visible.x = (tPtr->vS)?24:4;
tPtr->visible.y = (tPtr->ruler && tPtr->flags.rulerShown)?43:3;
tPtr->visible.w = tPtr->view->size.width - tPtr->visible.x - 8;
tPtr->visible.h = tPtr->view->size.height - tPtr->visible.y;
tPtr->visible.h -= (tPtr->hS)?20:0;
tPtr->margins[0].right = tPtr->visible.w;
if (tPtr->view->flags.realized) {
if (tPtr->db) {
XFreePixmap(tPtr->view->screen->display, tPtr->db);
tPtr->db = (Pixmap) NULL;
}
if (tPtr->visible.w < 40)
tPtr->visible.w = 40;
if (tPtr->visible.h < 20)
tPtr->visible.h = 20;
if(!tPtr->db) {
tPtr->db = XCreatePixmap(tPtr->view->screen->display,
tPtr->view->window, tPtr->visible.w,
tPtr->visible.h, tPtr->view->screen->depth);
}
}
WMThawText(tPtr);
}
W_ViewDelegate _TextViewDelegate =
{
NULL,
NULL,
textDidResize,
NULL,
};
/* nice, divisble-by-16 blocks */
#define reqBlockSize(requested) (requested + 16 - (requested%16))
static void
clearText(Text *tPtr)
{
tPtr->vpos = tPtr->hpos = 0;
tPtr->docHeight = tPtr->docWidth = 0;
tPtr->cursor.x = -23;
if (!tPtr->firstTextBlock)
return;
while (tPtr->currentTextBlock)
WMDestroyTextBlock(tPtr, WMRemoveTextBlock(tPtr));
tPtr->firstTextBlock = NULL;
tPtr->currentTextBlock = NULL;
tPtr->lastTextBlock = NULL;
WMEmptyArray(tPtr->gfxItems);
}
static void
deleteTextInteractively(Text *tPtr, KeySym ksym)
{
TextBlock *tb;
Bool back = (Bool) (ksym == XK_BackSpace);
Bool done = 1;
Bool wasFirst = 0;
if (!tPtr->flags.editable) {
XBell(tPtr->view->screen->display, 0);
return;
}
if ( !(tb = tPtr->currentTextBlock) )
return;
if (tPtr->flags.ownsSelection) {
if(removeSelection(tPtr))
layOutDocument(tPtr);
return;
}
wasFirst = tb->first;
if (back && tPtr->tpos < 1) {
if (tb->prior) {
if(tb->prior->blank) {
tPtr->currentTextBlock = tb->prior;
WMRemoveTextBlock(tPtr);
tPtr->currentTextBlock = tb;
tb->first = True;
layOutDocument(tPtr);
return;
} else {
if(tb->blank) {
TextBlock *prior = tb->prior;
tPtr->currentTextBlock = tb;
WMRemoveTextBlock(tPtr);
tb = prior;
} else {
tb = tb->prior;
}
tPtr->tpos = tb->used;
tPtr->currentTextBlock = tb;
done = 1;
if(wasFirst) {
if(tb->next)
tb->next->first = False;
layOutDocument(tPtr);
return;
}
}
}
}
if ( (tb->used > 0) && ((back?tPtr->tpos > 0:1))
&& (tPtr->tpos <= tb->used) && !tb->graphic) {
if (back)
tPtr->tpos--;
memmove(&(tb->text[tPtr->tpos]),
&(tb->text[tPtr->tpos + 1]), tb->used - tPtr->tpos);
tb->used--;
done = 0;
}
if ( (back? (tPtr->tpos < 1 && !done) : ( tPtr->tpos >= tb->used))
|| tb->graphic) {
TextBlock *sibling = (back? tb->prior : tb->next);
if(tb->used == 0 || tb->graphic)
WMDestroyTextBlock(tPtr, WMRemoveTextBlock(tPtr));
if (sibling) {
tPtr->currentTextBlock = sibling;
tPtr->tpos = (back? sibling->used : 0);
}
}
layOutDocument(tPtr);
}
static void
insertTextInteractively(Text *tPtr, char *text, int len)
{
TextBlock *tb;
char *newline = NULL;
if (!tPtr->flags.editable) {
XBell(tPtr->view->screen->display, 0);
return;
}
if (len < 1 || !text)
return;
if(tPtr->flags.ignoreNewLine && *text == '\n' && len == 1)
return;
if (tPtr->flags.ownsSelection)
removeSelection(tPtr);
if (tPtr->flags.ignoreNewLine) {
int i;
for(i=0; i<len; i++) {
if (text[i] == '\n')
text[i] = ' ';
}
}
tb = tPtr->currentTextBlock;
if (!tb || tb->graphic) {
tPtr->tpos = 0;
WMAppendTextStream(tPtr, text);
layOutDocument(tPtr);
return;
}
if ((newline = strchr(text, '\n'))) {
int nlen = (int)(newline-text);
int s = tb->used - tPtr->tpos;
char save[s];
if (!tb->blank && nlen>0) {
if (s > 0) {
memcpy(save, &tb->text[tPtr->tpos], s);
tb->used -= (tb->used - tPtr->tpos);
}
insertTextInteractively(tPtr, text, nlen);
newline++;
WMAppendTextStream(tPtr, newline);
if (s>0)
insertTextInteractively(tPtr, save, s);
} else {
if (tPtr->tpos>0 && tPtr->tpos < tb->used
&& !tb->graphic && tb->text) {
void *ntb = WMCreateTextBlockWithText(
tPtr, &tb->text[tPtr->tpos],
tb->d.font, tb->color, True, tb->used - tPtr->tpos);
tb->used = tPtr->tpos;
WMAppendTextBlock(tPtr, ntb);
tPtr->tpos = 0;
} else if (tPtr->tpos == tb->used || tPtr->tpos == 0) {
if(tPtr->flags.indentNewLine) {
WMAppendTextBlock(tPtr, WMCreateTextBlockWithText(tPtr,
" ", tb->d.font, tb->color, True, 4));
tPtr->tpos = 4;
} else {
WMAppendTextBlock(tPtr, WMCreateTextBlockWithText(tPtr,
NULL, tb->d.font, tb->color, True, 0));
tPtr->tpos = 0;
}
}
}
} else {
if (tb->used + len >= tb->allocated) {
tb->allocated = reqBlockSize(tb->used+len);
tb->text = wrealloc(tb->text, tb->allocated);
}
if (tb->blank) {
memcpy(tb->text, text, len);
tb->used = len;
tPtr->tpos = len;
tb->text[tb->used] = 0;
tb->blank = False;
} else {
memmove(&(tb->text[tPtr->tpos+len]), &tb->text[tPtr->tpos],
tb->used-tPtr->tpos+1);
memmove(&tb->text[tPtr->tpos], text, len);
tb->used += len;
tPtr->tpos += len;
tb->text[tb->used] = 0;
}
}
layOutDocument(tPtr);
}
static void
selectRegion(Text *tPtr, int x, int y)
{
if (x < 0 || y < 0)
return;
y += (tPtr->flags.rulerShown? 40: 0);
y += tPtr->vpos;
if (y>10)
y -= 10; /* the original offset */
x -= tPtr->visible.x-2;
if (x<0)
x=0;
tPtr->sel.x = WMAX(0, WMIN(tPtr->clicked.x, x));
tPtr->sel.w = abs(tPtr->clicked.x - x);
tPtr->sel.y = WMAX(0, WMIN(tPtr->clicked.y, y));
tPtr->sel.h = abs(tPtr->clicked.y - y);
tPtr->flags.ownsSelection = True;
paintText(tPtr);
}
static void
releaseSelection(Text *tPtr)
{
TextBlock *tb = tPtr->firstTextBlock;
while(tb) {
tb->selected = False;
tb = tb->next;
}
tPtr->flags.ownsSelection = False;
WMDeleteSelectionHandler(tPtr->view, XA_PRIMARY,
CurrentTime);
paintText(tPtr);
}
WMData*
requestHandler(WMView *view, Atom selection, Atom target, void *cdata,
Atom *type)
{
Text *tPtr = view->self;
Display *dpy = tPtr->view->screen->display;
Atom _TARGETS;
Atom TEXT = XInternAtom(dpy, "TEXT", False);
Atom COMPOUND_TEXT = XInternAtom(dpy, "COMPOUND_TEXT", False);
WMData *data = NULL;
if (target == XA_STRING || target == TEXT || target == COMPOUND_TEXT) {
char *text = WMGetTextSelectedStream(tPtr);
if (text) {
data = WMCreateDataWithBytes(text, strlen(text));
WMSetDataFormat(data, TYPETEXT);
}
*type = target;
return data;
} else printf("didn't get it\n");
_TARGETS = XInternAtom(dpy, "TARGETS", False);
if (target == _TARGETS) {
Atom *ptr;
ptr = wmalloc(4 * sizeof(Atom));
ptr[0] = _TARGETS;
ptr[1] = XA_STRING;
ptr[2] = TEXT;
ptr[3] = COMPOUND_TEXT;
data = WMCreateDataWithBytes(ptr, 4*4);
WMSetDataFormat(data, 32);
*type = target;
return data;
}
return NULL;
}
static void
lostHandler(WMView *view, Atom selection, void *cdata)
{
releaseSelection((WMText *)view->self);
}
static WMSelectionProcs selectionHandler = {
requestHandler, lostHandler, NULL
};
static void
ownershipObserver(void *observerData, WMNotification *notification)
{
if (observerData != WMGetNotificationClientData(notification))
lostHandler(WMWidgetView(observerData), XA_PRIMARY, NULL);
}
static void
autoSelectText(Text *tPtr, int clicks)
{
int x, start;
TextBlock *tb;
char *mark = NULL, behind, ahead;
if(!(tb = tPtr->currentTextBlock))
return;
if(clicks == 2) {
switch(tb->text[tPtr->tpos]) {
case ' ': return;
/*
case '<': case '>': behind = '<'; ahead = '>'; break;
case '{': case '}': behind = '{'; ahead = '}'; break;
case '[': case ']': behind = '['; ahead = ']'; break;
*/
default: behind = ahead = ' ';
}
tPtr->sel.y = tPtr->cursor.y+5;
tPtr->sel.h = 6;/*tPtr->cursor.h-10;*/
if(tb->graphic) {
tPtr->sel.x = tb->sections[0].x;
tPtr->sel.w = tb->sections[0].w;
} else {
WMFont *font = tPtr->flags.monoFont?tPtr->dFont:tb->d.font;
start = tPtr->tpos;
while(start > 0 && tb->text[start-1] != behind)
start--;
x = tPtr->cursor.x;
if(tPtr->tpos > start){
x -= WMWidthOfString(font, &tb->text[start],
tPtr->tpos - start);
}
tPtr->sel.x = (x<0?0:x)+1;
if((mark = strchr(&tb->text[start], ahead))) {
tPtr->sel.w = WMWidthOfString(font, &tb->text[start],
(int)(mark - &tb->text[start]));
} else if(tb->used > start) {
tPtr->sel.w = WMWidthOfString(font, &tb->text[start],
tb->used - start);
}
}
} else if(clicks == 3) {
TextBlock *cur = tb;
while(tb && !tb->first) {
tb = tb->prior;
}
tPtr->sel.y = tb->sections[0]._y;
tb = cur;
while(tb->next && !tb->next->first) {
tb = tb->next;
}
tPtr->sel.h = tb->sections[tb->nsections-1]._y
+ 5 - tPtr->sel.y;
tPtr->sel.x = 0;
tPtr->sel.w = tPtr->docWidth;
tPtr->clicked.x = 0; /* only for now, fix sel. code */
}
if (!tPtr->flags.ownsSelection) {
WMCreateSelectionHandler(tPtr->view,
XA_PRIMARY, tPtr->lastClickTime, &selectionHandler, NULL);
tPtr->flags.ownsSelection = True;
}
paintText(tPtr);
}
static void
fontChanged(void *observerData, WMNotification *notification)
{
WMText *tPtr = (WMText *) observerData;
WMFont *font = (WMFont *)WMGetNotificationClientData(notification);
printf("fontChanged\n");
if(!tPtr || !font)
return;
if (tPtr->flags.ownsSelection)
WMSetTextSelectionFont(tPtr, font);
}
static void
handleTextKeyPress(Text *tPtr, XEvent *event)
{
char buffer[2];
KeySym ksym;
int control_pressed = False;
TextBlock *tb = NULL;
if (((XKeyEvent *) event)->state & ControlMask)
control_pressed = True;
buffer[XLookupString(&event->xkey, buffer, 1, &ksym, NULL)] = 0;
switch(ksym) {
case XK_Left:
if(!(tb = tPtr->currentTextBlock))
break;
if(tb->graphic)
goto L_imaGFX;
if(tPtr->tpos==0) {
L_imaGFX: if(tb->prior) {
tPtr->currentTextBlock = tb->prior;
tPtr->tpos = tPtr->currentTextBlock->used -1;
} else tPtr->tpos = 0;
} else tPtr->tpos--;
updateCursorPosition(tPtr);
paintText(tPtr);
break;
case XK_Right:
if(!(tb = tPtr->currentTextBlock))
break;
if(tb->graphic)
goto R_imaGFX;
if(tPtr->tpos == tb->used) {
R_imaGFX: if(tb->next) {
tPtr->currentTextBlock = tb->next;
tPtr->tpos = 1;
} else tPtr->tpos = tb->used;
} else tPtr->tpos++;
updateCursorPosition(tPtr);
paintText(tPtr);
break;
case XK_Down:
cursorToTextPosition(tPtr, tPtr->cursor.x + tPtr->visible.x,
tPtr->clicked.y + tPtr->cursor.h - tPtr->vpos);
paintText(tPtr);
break;
case XK_Up:
cursorToTextPosition(tPtr, tPtr->cursor.x + tPtr->visible.x,
tPtr->visible.y + tPtr->cursor.y - tPtr->vpos - 3);
paintText(tPtr);
break;
case XK_BackSpace:
case XK_Delete:
#ifdef XK_KP_Delete
case XK_KP_Delete:
#endif
deleteTextInteractively(tPtr, ksym);
updateCursorPosition(tPtr);
paintText(tPtr);
break;
case XK_Control_R :
case XK_Control_L :
control_pressed = True;
break;
case XK_Tab:
insertTextInteractively(tPtr, " ", 4);
updateCursorPosition(tPtr);
paintText(tPtr);
break;
case XK_Return:
buffer[0] = '\n';
default:
if (buffer[0] != 0 && !control_pressed) {
insertTextInteractively(tPtr, buffer, 1);
updateCursorPosition(tPtr);
paintText(tPtr);
} else if (control_pressed && ksym==XK_r) {
Bool i = !tPtr->flags.rulerShown;
WMShowTextRuler(tPtr, i);
tPtr->flags.rulerShown = i;
}
else if (control_pressed && buffer[0] == '')
XBell(tPtr->view->screen->display, 0);
else
WMRelayToNextResponder(tPtr->view, event);
}
if (!control_pressed && tPtr->flags.ownsSelection)
releaseSelection(tPtr);
}
static void
pasteText(WMView *view, Atom selection, Atom target, Time timestamp,
void *cdata, WMData *data)
{
Text *tPtr = (Text *)view->self;
char *text;
tPtr->flags.waitingForSelection = 0;
if (data) {
text = (char*)WMDataBytes(data);
if (tPtr->parser) {
(tPtr->parser) (tPtr, (void *) text);
layOutDocument(tPtr);
} else insertTextInteractively(tPtr, text, strlen(text));
updateCursorPosition(tPtr);
paintText(tPtr);
} else {
int n;
text = XFetchBuffer(tPtr->view->screen->display, &n, 0);
if (text) {
text[n] = 0;
if (tPtr->parser) {
(tPtr->parser) (tPtr, (void *) text);
layOutDocument(tPtr);
} else insertTextInteractively(tPtr, text, n);
updateCursorPosition(tPtr);
paintText(tPtr);
XFree(text);
}
}
}
static void
handleActionEvents(XEvent *event, void *data)
{
Text *tPtr = (Text *)data;
Display *dpy = event->xany.display;
KeySym ksym;
switch (event->type) {
case KeyPress:
ksym = XLookupKeysym((XKeyEvent*)event, 0);
if (ksym == XK_Shift_R || ksym == XK_Shift_L) {
tPtr->flags.extendSelection = True;
return;
}
if (tPtr->flags.focused) {
XGrabPointer(dpy, W_VIEW(tPtr)->window, False,
PointerMotionMask|ButtonPressMask|ButtonReleaseMask,
GrabModeAsync, GrabModeAsync, None,
tPtr->view->screen->invisibleCursor, CurrentTime);
tPtr->flags.pointerGrabbed = True;
handleTextKeyPress(tPtr, event);
} break;
case KeyRelease:
ksym = XLookupKeysym((XKeyEvent*)event, 0);
if (ksym == XK_Shift_R || ksym == XK_Shift_L) {
tPtr->flags.extendSelection = False;
return;
/* end modify flag so selection can be extended */
}
break;
case MotionNotify:
if (tPtr->flags.pointerGrabbed) {
tPtr->flags.pointerGrabbed = False;
XUngrabPointer(dpy, CurrentTime);
}
if(tPtr->flags.waitingForSelection)
break;
if ((event->xmotion.state & Button1Mask)) {
TextBlock *tb = tPtr->currentTextBlock;
if(tPtr->flags.isOverGraphic && tb && tb->graphic && !tb->object) {
WMSize offs;
WMPixmap *pixmap = tb->d.pixmap;
char *types[2] = {"application/X-image", NULL};
offs.width = 2;
offs.height = 2;
WMDragImageFromView(tPtr->view, pixmap, types,
wmkpoint(event->xmotion.x_root, event->xmotion.y_root),
offs, event, True);
} else {
if (!tPtr->flags.ownsSelection) {
WMCreateSelectionHandler(tPtr->view,
XA_PRIMARY, event->xbutton.time,
&selectionHandler, NULL);
tPtr->flags.ownsSelection = True;
}
}
selectRegion(tPtr, event->xmotion.x, event->xmotion.y);
break;
}
mouseOverObject(tPtr, event->xmotion.x, event->xmotion.y);
break;
case ButtonPress:
if (tPtr->flags.pointerGrabbed) {
tPtr->flags.pointerGrabbed = False;
XUngrabPointer(dpy, CurrentTime);
break;
}
if (tPtr->flags.waitingForSelection)
break;
if (tPtr->flags.extendSelection) {
selectRegion(tPtr, event->xmotion.x, event->xmotion.y);
return;
}
if (tPtr->flags.ownsSelection)
releaseSelection(tPtr);
if (event->xbutton.button == Button1) {
if(WMIsDoubleClick(event)) {
TextBlock *tb = tPtr->currentTextBlock;
tPtr->lastClickTime = event->xbutton.time;
if(tb && tb->graphic && !tb->object) {
char desc[tb->used+1];
memcpy(desc, tb->text, tb->used);
desc[tb->used] = 0;
if(tPtr->delegate) {
if(tPtr->delegate->didDoubleClickOnPicture)
(*tPtr->delegate->didDoubleClickOnPicture)
(tPtr->delegate, desc);
}
} else {
autoSelectText(tPtr, 2);
}
break;
} else if(event->xbutton.time - tPtr->lastClickTime
< WINGsConfiguration.doubleClickDelay) {
tPtr->lastClickTime = event->xbutton.time;
autoSelectText(tPtr, 3);
break;
}
if (!tPtr->flags.focused) {
WMSetFocusToWidget(tPtr);
tPtr->flags.focused = True;
}
tPtr->lastClickTime = event->xbutton.time;
cursorToTextPosition(tPtr, event->xmotion.x, event->xmotion.y);
paintText(tPtr);
}
if (event->xbutton.button
== WINGsConfiguration.mouseWheelDown) {
WMScrollText(tPtr, 16);
break;
}
if (event->xbutton.button
== WINGsConfiguration.mouseWheelUp) {
WMScrollText(tPtr, -16);
break;
}
if (event->xbutton.button == Button2) {
char *text = NULL;
int n;
if (!tPtr->flags.editable) {
XBell(dpy, 0);
break;
}
if (!WMRequestSelection(tPtr->view, XA_PRIMARY, XA_STRING,
event->xbutton.time, pasteText, NULL)) {
text = XFetchBuffer(tPtr->view->screen->display, &n, 0);
tPtr->flags.waitingForSelection = 0;
if (text) {
text[n] = 0;
if (tPtr->parser) {
(tPtr->parser) (tPtr, (void *) text);
layOutDocument(tPtr);
}
else
insertTextInteractively(tPtr, text, n);
XFree(text);
#if 0
NOTIFY(tPtr, didChange, WMTextDidChangeNotification,
(void*)WMInsertTextEvent);
#endif
updateCursorPosition(tPtr);
paintText(tPtr);
} else {
tPtr->flags.waitingForSelection = True;
}
}
break;
}
case ButtonRelease:
if (tPtr->flags.pointerGrabbed) {
tPtr->flags.pointerGrabbed = False;
XUngrabPointer(dpy, CurrentTime);
break;
}
if (tPtr->flags.waitingForSelection)
break;
}
}
static void
handleEvents(XEvent *event, void *data)
{
Text *tPtr = (Text *)data;
switch(event->type) {
case Expose:
if (event->xexpose.count!=0)
break;
if(tPtr->hS) {
if (!(W_VIEW(tPtr->hS))->flags.realized)
WMRealizeWidget(tPtr->hS);
}
if(tPtr->vS) {
if (!(W_VIEW(tPtr->vS))->flags.realized)
WMRealizeWidget(tPtr->vS);
}
if(tPtr->ruler) {
if (!(W_VIEW(tPtr->ruler))->flags.realized)
WMRealizeWidget(tPtr->ruler);
}
if(!tPtr->db)
textDidResize(tPtr->view->delegate, tPtr->view);
paintText(tPtr);
break;
case FocusIn:
if (W_FocusedViewOfToplevel(W_TopLevelOfView(tPtr->view))
!= tPtr->view)
return;
tPtr->flags.focused = True;
#if DO_BLINK
if (tPtr->flags.editable && !tPtr->timerID) {
tPtr->timerID = WMAddTimerHandler(12+0*CURSOR_BLINK_ON_DELAY,
blinkCursor, tPtr);
}
#endif
break;
case FocusOut:
tPtr->flags.focused = False;
paintText(tPtr);
#if DO_BLINK
if (tPtr->timerID) {
WMDeleteTimerHandler(tPtr->timerID);
tPtr->timerID = NULL;
}
#endif
break;
case DestroyNotify:
clearText(tPtr);
if(tPtr->db)
XFreePixmap(tPtr->view->screen->display, tPtr->db);
if(tPtr->gfxItems)
WMEmptyArray(tPtr->gfxItems);
#if DO_BLINK
if (tPtr->timerID)
WMDeleteTimerHandler(tPtr->timerID);
#endif
WMReleaseFont(tPtr->dFont);
WMReleaseColor(tPtr->dColor);
WMDeleteSelectionHandler(tPtr->view, XA_PRIMARY, CurrentTime);
WMRemoveNotificationObserver(tPtr);
wfree(tPtr);
break;
}
}
static void
insertPlainText(Text *tPtr, char *text)
{
char *start, *mark;
void *tb = NULL;
start = text;
while (start) {
mark = strchr(start, '\n');
if (mark) {
tb = WMCreateTextBlockWithText(tPtr,
start, tPtr->dFont,
tPtr->dColor, tPtr->flags.first, (int)(mark-start));
start = mark+1;
tPtr->flags.first = True;
} else {
if (start && strlen(start)) {
tb = WMCreateTextBlockWithText(tPtr, start, tPtr->dFont,
tPtr->dColor, tPtr->flags.first, strlen(start));
} else tb = NULL;
tPtr->flags.first = False;
start = mark;
}
if (tPtr->flags.prepend)
WMPrependTextBlock(tPtr, tb);
else
WMAppendTextBlock(tPtr, tb);
}
}
static void
rulerMoveCallBack(WMWidget *w, void *self)
{
Text *tPtr = (Text *)self;
if (!tPtr)
return;
if (W_CLASS(tPtr) != WC_Text)
return;
paintText(tPtr);
}
static void
rulerReleaseCallBack(WMWidget *w, void *self)
{
Text *tPtr = (Text *)self;
if (!tPtr)
return;
if (W_CLASS(tPtr) != WC_Text)
return;
WMThawText(tPtr);
return;
}
static unsigned
draggingSourceOperation(WMView *self, Bool local)
{
return WDOperationCopy;
}
static WMData*
fetchDragData(WMView *self, char *type)
{
TextBlock *tb = ((WMText *)self->self)->currentTextBlock;
char *desc;
WMData *data;
if (!tb)
return NULL;
printf("type is [%s]\n", type);
desc = wmalloc(tb->used+1);
memcpy(desc, tb->text, tb->used);
desc[tb->used] = 0;
data = WMCreateDataWithBytes(desc, strlen(desc)+1);
wfree(desc);
return data;
}
static WMDragSourceProcs _DragSourceProcs = {
draggingSourceOperation,
NULL,
NULL,
fetchDragData
};
static unsigned
draggingEntered(WMView *self, WMDraggingInfo *info)
{
printf("draggingEntered\n");
return WDOperationCopy;
}
static unsigned
draggingUpdated(WMView *self, WMDraggingInfo *info)
{
return WDOperationCopy;
}
static void
draggingExited(WMView *self, WMDraggingInfo *info)
{
printf("draggingExited\n");
}
static Bool
prepareForDragOperation(WMView *self, WMDraggingInfo *info)
{
printf("prepareForDragOperation\n");
return True;
}
char *badbadbad;
static void
receivedData(WMView *view, Atom selection, Atom target, Time timestamp,
void *cdata, WMData *data)
{
badbadbad = wstrdup((char *)WMDataBytes(data));
}
/* when it's done in WINGs, remove this */
Bool
requestDroppedData(WMView *view, WMDraggingInfo *info, char *type)
{
WMScreen *scr = W_VIEW_SCREEN(view);
if (!WMRequestSelection(scr->dragInfo.destView,
scr->xdndSelectionAtom,
XInternAtom(scr->display, type, False),
scr->dragInfo.timestamp,
receivedData, &scr->dragInfo)) {
wwarning("could not request data for dropped data");
}
{
XEvent ev;
ev.type = ClientMessage;
ev.xclient.message_type = scr->xdndFinishedAtom;
ev.xclient.format = 32;
ev.xclient.window = info->destinationWindow;
ev.xclient.data.l[0] = 0;
ev.xclient.data.l[1] = 0;
ev.xclient.data.l[2] = 0;
ev.xclient.data.l[3] = 0;
ev.xclient.data.l[4] = 0;
XSendEvent(scr->display, info->sourceWindow, False, 0, &ev);
XFlush(scr->display);
}
return True;
}
static Bool
performDragOperation(WMView *self, WMDraggingInfo *info)
{
WMColor *color;
WMText *tPtr = (WMText *)self->self;
if (!tPtr)
return True;
requestDroppedData(tPtr->view, info, "application/X-color");
color = WMCreateNamedColor(W_VIEW_SCREEN(self), badbadbad, True);
if(color) {
WMSetTextSelectionColor(tPtr, color);
WMReleaseColor(color);
}
return True;
}
static void
concludeDragOperation(WMView *self, WMDraggingInfo *info)
{
printf("concludeDragOperation\n");
}
static WMDragDestinationProcs _DragDestinationProcs = {
draggingEntered,
draggingUpdated,
draggingExited,
prepareForDragOperation,
performDragOperation,
concludeDragOperation
};
char *
getStream(WMText *tPtr, int sel, int array)
{
TextBlock *tb = NULL;
char *text = NULL;
unsigned long where = 0;
if (!tPtr)
return NULL;
if (!(tb = tPtr->firstTextBlock))
return NULL;
if (tPtr->writer) {
(tPtr->writer) (tPtr, (void *) text);
return text;
}
tb = tPtr->firstTextBlock;
while (tb) {
if (!tb->graphic || (tb->graphic && !tPtr->flags.monoFont)) {
if (!sel || (tb->graphic && tb->selected)) {
if (!tPtr->flags.ignoreNewLine && (tb->first || tb->blank)
&& tb != tPtr->firstTextBlock) {
text = wrealloc(text, where+1);
text[where++] = '\n';
}
if(tb->blank)
goto _gSnext;
if(tb->graphic && array) {
text = wrealloc(text, where+4);
text[where++] = 0xFA;
text[where++] = (tb->used>>8)&0x0ff;
text[where++] = tb->used&0x0ff;
text[where++] = tb->allocated; /* extra info */
}
text = wrealloc(text, where+tb->used);
memcpy(&text[where], tb->text, tb->used);
where += tb->used;
} else if (sel && tb->selected) {
if (!tPtr->flags.ignoreNewLine && tb->blank) {
text = wrealloc(text, where+1);
text[where++] = '\n';
}
if(tb->blank)
goto _gSnext;
text = wrealloc(text, where+(tb->s_end - tb->s_begin));
memcpy(&text[where], &tb->text[tb->s_begin],
tb->s_end - tb->s_begin);
where += tb->s_end - tb->s_begin;
}
}
_gSnext:tb = tb->next;
}
/* +1 for the end of string, let's be nice */
text = wrealloc(text, where+1);
text[where] = 0;
return text;
}
static void
releaseStreamObjects(void *data)
{
if(data)
wfree(data);
}
WMArray *
getStreamObjects(WMText *tPtr, int sel)
{
WMArray *array = WMCreateArrayWithDestructor(4, releaseStreamObjects);
WMData *data;
char *stream;
unsigned short len;
char *start, *fa, *desc;
stream = getStream(tPtr, sel, 1);
if(!stream)
return NULL;
start = stream;
while (start) {
fa = strchr(start, 0xFA);
if (fa) {
if((int)(fa - start)>0) {
desc = start;
desc[(int)(fa - start)] = 0;
data = WMCreateDataWithBytes((void *)desc, (int)(fa - start));
WMSetDataFormat(data, TYPETEXT);
WMAddToArray(array, (void *) data);
}
len = *(fa+1)*0xff + *(fa+2);
data = WMCreateDataWithBytes((void *)(fa+4), len);
WMSetDataFormat(data, *(fa+3));
WMAddToArray(array, (void *) data);
start = fa + len + 4;
} else {
if (start && strlen(start)) {
data = WMCreateDataWithBytes((void *)start, strlen(start));
WMSetDataFormat(data, TYPETEXT);
WMAddToArray(array, (void *) data);
}
start = fa;
}
}
wfree(stream);
return array;
}
WMText *
WMCreateTextForDocumentType(WMWidget *parent, WMAction *parser, WMAction *writer)
{
Text *tPtr;
tPtr = wmalloc(sizeof(Text));
memset(tPtr, 0, sizeof(Text));
tPtr->widgetClass = WC_Text;
tPtr->view = W_CreateView(W_VIEW(parent));
if (!tPtr->view) {
perror("could not create text's view\n");
wfree(tPtr);
return NULL;
}
tPtr->view->self = tPtr;
tPtr->view->attribs.cursor = tPtr->view->screen->textCursor;
tPtr->view->attribFlags |= CWOverrideRedirect | CWCursor;
W_ResizeView(tPtr->view, 250, 200);
tPtr->dColor = WMWhiteColor(tPtr->view->screen);
tPtr->bgGC = WMColorGC(tPtr->dColor);
W_SetViewBackgroundColor(tPtr->view, tPtr->dColor);
WMReleaseColor(tPtr->dColor);
tPtr->dColor = WMBlackColor(tPtr->view->screen);
tPtr->fgGC = WMColorGC(tPtr->dColor);
tPtr->ruler = NULL;
tPtr->vS = NULL;
tPtr->hS = NULL;
tPtr->dFont = WMRetainFont(WMSystemFontOfSize(tPtr->view->screen, 12));
tPtr->view->delegate = &_TextViewDelegate;
tPtr->delegate = NULL;
#if DO_BLINK
tPtr->timerID = NULL;
#endif
WMCreateEventHandler(tPtr->view, ExposureMask|StructureNotifyMask
|EnterWindowMask|LeaveWindowMask|FocusChangeMask,
handleEvents, tPtr);
WMCreateEventHandler(tPtr->view, ButtonReleaseMask|ButtonPressMask
|KeyReleaseMask|KeyPressMask|Button1MotionMask,
handleActionEvents, tPtr);
WMAddNotificationObserver(ownershipObserver, tPtr,
"_lostOwnership", tPtr);
WMSetViewDragSourceProcs(tPtr->view, &_DragSourceProcs);
WMSetViewDragDestinationProcs(tPtr->view, &_DragDestinationProcs);
{
char *types[3] = {"application/X-color", "application/X-image", NULL};
WMRegisterViewForDraggedTypes(tPtr->view, types);
}
WMAddNotificationObserver(fontChanged, tPtr,
"WMFontPanelDidChangeNotification", tPtr);
tPtr->firstTextBlock = NULL;
tPtr->lastTextBlock = NULL;
tPtr->currentTextBlock = NULL;
tPtr->tpos = 0;
tPtr->gfxItems = WMCreateArray(4);
tPtr->parser = parser;
tPtr->writer = writer;
tPtr->sel.x = tPtr->sel.y = 2;
tPtr->sel.w = tPtr->sel.h = 0;
tPtr->clicked.x = tPtr->clicked.y = 2;
tPtr->visible.x = tPtr->visible.y = 2;
tPtr->visible.h = tPtr->view->size.height;
tPtr->visible.w = tPtr->view->size.width - 4;
tPtr->cursor.x = -23;
tPtr->docWidth = 0;
tPtr->docHeight = 0;
tPtr->dBulletPix = WMCreatePixmapFromXPMData(tPtr->view->screen,
default_bullet);
tPtr->db = (Pixmap) NULL;
tPtr->bgPixmap = NULL;
tPtr->margins = WMGetRulerMargins(NULL);
tPtr->margins->right = tPtr->visible.w;
tPtr->nMargins = 1;
tPtr->flags.rulerShown = False;
tPtr->flags.monoFont = False;
tPtr->flags.focused = False;
tPtr->flags.editable = True;
tPtr->flags.ownsSelection = False;
tPtr->flags.pointerGrabbed = False;
tPtr->flags.extendSelection = False;
tPtr->flags.frozen = False;
tPtr->flags.cursorShown = True;
tPtr->flags.acceptsGraphic = False;
tPtr->flags.horizOnDemand = False;
tPtr->flags.needsLayOut = False;
tPtr->flags.ignoreNewLine = False;
tPtr->flags.indentNewLine = False;
tPtr->flags.laidOut = False;
tPtr->flags.waitingForSelection = False;
tPtr->flags.prepend = False;
tPtr->flags.isOverGraphic = False;
tPtr->flags.relief = WRSunken;
tPtr->flags.isOverGraphic = 0;
tPtr->flags.alignment = WALeft;
tPtr->flags.first = True;
return tPtr;
}
void
WMPrependTextStream(WMText *tPtr, char *text)
{
CHECK_CLASS(tPtr, WC_Text);
if(!text) {
if (tPtr->flags.ownsSelection)
releaseSelection(tPtr);
clearText(tPtr);
updateScrollers(tPtr);
return;
}
tPtr->flags.prepend = True;
if (text && tPtr->parser)
(tPtr->parser) (tPtr, (void *) text);
else
insertPlainText(tPtr, text);
tPtr->flags.needsLayOut = True;
tPtr->tpos = 0;
if(!tPtr->flags.frozen) {
layOutDocument(tPtr);
}
}
void
WMAppendTextStream(WMText *tPtr, char *text)
{
CHECK_CLASS(tPtr, WC_Text);
if(!text) {
if (tPtr->flags.ownsSelection)
releaseSelection(tPtr);
clearText(tPtr);
updateScrollers(tPtr);
return;
}
tPtr->flags.prepend = False;
if (text && tPtr->parser)
(tPtr->parser) (tPtr, (void *) text);
else
insertPlainText(tPtr, text);
tPtr->flags.needsLayOut = True;
if(tPtr->currentTextBlock)
tPtr->tpos = tPtr->currentTextBlock->used;
if(!tPtr->flags.frozen) {
layOutDocument(tPtr);
}
}
char *
WMGetTextStream(WMText *tPtr)
{
CHECK_CLASS(tPtr, WC_Text);
return getStream(tPtr, 0, 0);
}
char *
WMGetTextSelectedStream(WMText *tPtr)
{
CHECK_CLASS(tPtr, WC_Text);
return getStream(tPtr, 1, 0);
}
WMArray *
WMGetTextObjects(WMText *tPtr)
{
CHECK_CLASS(tPtr, WC_Text);
return getStreamObjects(tPtr, 0);
}
WMArray *
WMGetTextSelectedObjects(WMText *tPtr)
{
CHECK_CLASS(tPtr, WC_Text);
return getStreamObjects(tPtr, 1);
}
void
WMSetTextDelegate(WMText *tPtr, WMTextDelegate *delegate)
{
CHECK_CLASS(tPtr, WC_Text);
tPtr->delegate = delegate;
}
void *
WMCreateTextBlockWithObject(WMText *tPtr, WMWidget *w,
char *description, WMColor *color,
unsigned short first, unsigned short extraInfo)
{
TextBlock *tb;
if (!w || !description || !color)
return NULL;
tb = wmalloc(sizeof(TextBlock));
if (!tb)
return NULL;
tb->text = wstrdup(description);
tb->used = strlen(description);
tb->blank = False;
tb->d.widget = w;
tb->color = WMRetainColor(color);
tb->marginN = newMargin(tPtr, NULL);
tb->allocated = extraInfo;
tb->first = first;
tb->kanji = False;
tb->graphic = True;
tb->object = True;
tb->underlined = False;
tb->selected = False;
tb->script = 0;
tb->sections = NULL;
tb->nsections = 0;
tb->prior = NULL;
tb->next = NULL;
return tb;
}
void *
WMCreateTextBlockWithPixmap(WMText *tPtr, WMPixmap *p,
char *description, WMColor *color,
unsigned short first, unsigned short extraInfo)
{
TextBlock *tb;
if (!p || !description || !color)
return NULL;
tb = wmalloc(sizeof(TextBlock));
if (!tb)
return NULL;
tb->text = wstrdup(description);
tb->used = strlen(description);
tb->blank = False;
tb->d.pixmap = WMRetainPixmap(p);
tb->color = WMRetainColor(color);
tb->marginN = newMargin(tPtr, NULL);
tb->allocated = extraInfo;
tb->first = first;
tb->kanji = False;
tb->graphic = True;
tb->object = False;
tb->underlined = False;
tb->selected = False;
tb->script = 0;
tb->sections = NULL;
tb->nsections = 0;
tb->prior = NULL;
tb->next = NULL;
return tb;
}
void*
WMCreateTextBlockWithText(WMText *tPtr, char *text, WMFont *font, WMColor *color,
unsigned short first, unsigned short len)
{
TextBlock *tb;
if (!font || !color)
return NULL;
tb = wmalloc(sizeof(TextBlock));
if (!tb)
return NULL;
tb->allocated = reqBlockSize(len);
tb->text = (char *)wmalloc(tb->allocated);
memset(tb->text, 0, tb->allocated);
if (len < 1|| !text || (*text == '\n' && len==1 )) {
*tb->text = ' ';
tb->used = 1;
tb->blank = True;
} else {
memcpy(tb->text, text, len);
tb->used = len;
tb->blank = False;
}
tb->text[tb->used] = 0;
tb->d.font = WMRetainFont(font);
tb->color = WMRetainColor(color);
tb->marginN = newMargin(tPtr, NULL);
tb->first = first;
tb->kanji = False;
tb->graphic = False;
tb->underlined = False;
tb->selected = False;
tb->script = 0;
tb->sections = NULL;
tb->nsections = 0;
tb->prior = NULL;
tb->next = NULL;
return tb;
}
void
WMSetTextBlockProperties(WMText *tPtr, void *vtb, unsigned int first,
unsigned int kanji, unsigned int underlined, int script,
WMRulerMargins *margins)
{
TextBlock *tb = (TextBlock *) vtb;
if (!tb)
return;
tb->first = first;
tb->kanji = kanji;
tb->underlined = underlined;
tb->script = script;
tb->marginN = newMargin(tPtr, margins);
}
void
WMGetTextBlockProperties(WMText *tPtr, void *vtb, unsigned int *first,
unsigned int *kanji, unsigned int *underlined, int *script,
WMRulerMargins *margins)
{
TextBlock *tb = (TextBlock *) vtb;
if (!tb)
return;
if (first) *first = tb->first;
if (kanji) *kanji = tb->kanji;
if (underlined) *underlined = tb->underlined;
if (script) *script = tb->script;
if (margins) margins = &tPtr->margins[tb->marginN];
}
void
WMPrependTextBlock(WMText *tPtr, void *vtb)
{
TextBlock *tb = (TextBlock *)vtb;
if (!tPtr || !tb)
return;
if (tb->graphic) {
if(tb->object) {
WMWidget *w = tb->d.widget;
if (W_CLASS(w) != WC_TextField && W_CLASS(w) != WC_Text) {
(W_VIEW(w))->attribs.cursor = tPtr->view->screen->defaultCursor;
(W_VIEW(w))->attribFlags |= CWOverrideRedirect | CWCursor;
}
}
WMAddToArray(tPtr->gfxItems, (void *)tb);
tPtr->tpos = 0;
} else tPtr->tpos = tb->used;
if (!tPtr->lastTextBlock || !tPtr->firstTextBlock) {
tb->next = tb->prior = NULL;
tb->first = True;
tPtr->lastTextBlock = tPtr->firstTextBlock
= tPtr->currentTextBlock = tb;
return;
}
if(!tb->first) {
tb->marginN = tPtr->currentTextBlock->marginN;
}
tb->next = tPtr->currentTextBlock;
tb->prior = tPtr->currentTextBlock->prior;
if (tPtr->currentTextBlock->prior)
tPtr->currentTextBlock->prior->next = tb;
tPtr->currentTextBlock->prior = tb;
if (!tb->prior)
tPtr->firstTextBlock = tb;
tPtr->currentTextBlock = tb;
}
void
WMAppendTextBlock(WMText *tPtr, void *vtb)
{
TextBlock *tb = (TextBlock *)vtb;
if (!tPtr || !tb)
return;
if (tb->graphic) {
if(tb->object) {
WMWidget *w = tb->d.widget;
if (W_CLASS(w) != WC_TextField && W_CLASS(w) != WC_Text) {
(W_VIEW(w))->attribs.cursor =
tPtr->view->screen->defaultCursor;
(W_VIEW(w))->attribFlags |= CWOverrideRedirect | CWCursor;
}
}
WMAddToArray(tPtr->gfxItems, (void *)tb);
tPtr->tpos = 0;
} else tPtr->tpos = tb->used;
if (!tPtr->lastTextBlock || !tPtr->firstTextBlock) {
tb->next = tb->prior = NULL;
tb->first = True;
tPtr->lastTextBlock = tPtr->firstTextBlock
= tPtr->currentTextBlock = tb;
return;
}
if(!tb->first) {
tb->marginN = tPtr->currentTextBlock->marginN;
}
tb->next = tPtr->currentTextBlock->next;
tb->prior = tPtr->currentTextBlock;
if (tPtr->currentTextBlock->next)
tPtr->currentTextBlock->next->prior = tb;
tPtr->currentTextBlock->next = tb;
if (!tb->next)
tPtr->lastTextBlock = tb;
tPtr->currentTextBlock = tb;
}
void *
WMRemoveTextBlock(WMText *tPtr)
{
TextBlock *tb = NULL;
if (!tPtr || !tPtr->firstTextBlock || !tPtr->lastTextBlock
|| !tPtr->currentTextBlock) {
/* printf("cannot remove non existent TextBlock!\n"); */
return NULL;
}
tb = tPtr->currentTextBlock;
if (tb->graphic) {
WMRemoveFromArray(tPtr->gfxItems, (void *)tb);
if(tb->object) {
WMUnmapWidget(tb->d.widget);
}
}
if (tPtr->currentTextBlock == tPtr->firstTextBlock) {
if (tPtr->currentTextBlock->next)
tPtr->currentTextBlock->next->prior = NULL;
tPtr->firstTextBlock = tPtr->currentTextBlock->next;
tPtr->currentTextBlock = tPtr->firstTextBlock;
} else if (tPtr->currentTextBlock == tPtr->lastTextBlock) {
tPtr->currentTextBlock->prior->next = NULL;
tPtr->lastTextBlock = tPtr->currentTextBlock->prior;
tPtr->currentTextBlock = tPtr->lastTextBlock;
} else {
tPtr->currentTextBlock->prior->next = tPtr->currentTextBlock->next;
tPtr->currentTextBlock->next->prior = tPtr->currentTextBlock->prior;
tPtr->currentTextBlock = tPtr->currentTextBlock->next;
}
return (void *)tb;
}
void
WMDestroyTextBlock(WMText *tPtr, void *vtb)
{
TextBlock *tb = (TextBlock *)vtb;
if (!tPtr || !tb)
return;
if (tb->graphic) {
if(tb->object) {
/* naturally, there's a danger to destroying
widgets whose action brings us here:
ie. press a button to destroy it... need to
find a safer way. till then... this stays commented out */
/* WMDestroyWidget(tb->d.widget);
wfree(tb->d.widget); */
tb->d.widget = NULL;
} else {
WMReleasePixmap(tb->d.pixmap);
tb->d.pixmap = NULL;
}
} else {
WMReleaseFont(tb->d.font);
}
WMReleaseColor(tb->color);
if (tb->sections && tb->nsections > 0)
wfree(tb->sections);
wfree(tb->text);
wfree(tb);
tb = NULL;
}
void
WMSetTextForegroundColor(WMText *tPtr, WMColor *color)
{
if (!tPtr)
return;
if (color)
tPtr->fgGC = WMColorGC(color);
else
tPtr->fgGC = WMColorGC(WMBlackColor(tPtr->view->screen));
paintText(tPtr);
}
void
WMSetTextBackgroundColor(WMText *tPtr, WMColor *color)
{
if (!tPtr)
return;
if (color) {
tPtr->bgGC = WMColorGC(color);
W_SetViewBackgroundColor(tPtr->view, color);
} else {
tPtr->bgGC = WMColorGC(WMWhiteColor(tPtr->view->screen));
W_SetViewBackgroundColor(tPtr->view,
WMWhiteColor(tPtr->view->screen));
}
paintText(tPtr);
}
void WMSetTextBackgroundPixmap(WMText *tPtr, WMPixmap *pixmap)
{
if (!tPtr)
return;
if (tPtr->bgPixmap)
WMReleasePixmap(tPtr->bgPixmap);
if (pixmap)
tPtr->bgPixmap = WMRetainPixmap(pixmap);
else
tPtr->bgPixmap = NULL;
}
void
WMSetTextRelief(WMText *tPtr, WMReliefType relief)
{
if (!tPtr)
return;
tPtr->flags.relief = relief;
textDidResize(tPtr->view->delegate, tPtr->view);
}
void
WMSetTextHasHorizontalScroller(WMText *tPtr, Bool shouldhave)
{
if (!tPtr)
return;
if (shouldhave && !tPtr->hS) {
tPtr->hS = WMCreateScroller(tPtr);
(W_VIEW(tPtr->hS))->attribs.cursor = tPtr->view->screen->defaultCursor;
(W_VIEW(tPtr->hS))->attribFlags |= CWOverrideRedirect | CWCursor;
WMSetScrollerArrowsPosition(tPtr->hS, WSAMinEnd);
WMSetScrollerAction(tPtr->hS, scrollersCallBack, tPtr);
WMMapWidget(tPtr->hS);
} else if (!shouldhave && tPtr->hS) {
WMUnmapWidget(tPtr->hS);
WMDestroyWidget(tPtr->hS);
tPtr->hS = NULL;
}
tPtr->hpos = 0;
tPtr->prevHpos = 0;
textDidResize(tPtr->view->delegate, tPtr->view);
}
void
WMSetTextHasRuler(WMText *tPtr, Bool shouldhave)
{
if (!tPtr)
return;
if(shouldhave && !tPtr->ruler) {
tPtr->ruler = WMCreateRuler(tPtr);
(W_VIEW(tPtr->ruler))->attribs.cursor =
tPtr->view->screen->defaultCursor;
(W_VIEW(tPtr->ruler))->attribFlags |= CWOverrideRedirect | CWCursor;
WMSetRulerReleaseAction(tPtr->ruler, rulerReleaseCallBack, tPtr);
WMSetRulerMoveAction(tPtr->ruler, rulerMoveCallBack, tPtr);
} else if(!shouldhave && tPtr->ruler) {
WMShowTextRuler(tPtr, False);
WMDestroyWidget(tPtr->ruler);
tPtr->ruler = NULL;
}
textDidResize(tPtr->view->delegate, tPtr->view);
}
void
WMShowTextRuler(WMText *tPtr, Bool show)
{
if(!tPtr)
return;
if(!tPtr->ruler)
return;
if(tPtr->flags.monoFont)
show = False;
tPtr->flags.rulerShown = show;
if(show) {
WMMapWidget(tPtr->ruler);
} else {
WMUnmapWidget(tPtr->ruler);
}
textDidResize(tPtr->view->delegate, tPtr->view);
}
Bool
WMGetTextRulerShown(WMText *tPtr)
{
if(!tPtr)
return 0;
if(!tPtr->ruler)
return 0;
return tPtr->flags.rulerShown;
}
void
WMSetTextHasVerticalScroller(WMText *tPtr, Bool shouldhave)
{
if (!tPtr)
return;
if (shouldhave && !tPtr->vS) {
tPtr->vS = WMCreateScroller(tPtr);
(W_VIEW(tPtr->vS))->attribs.cursor = tPtr->view->screen->defaultCursor;
(W_VIEW(tPtr->vS))->attribFlags |= CWOverrideRedirect | CWCursor;
WMSetScrollerArrowsPosition(tPtr->vS, WSAMaxEnd);
WMSetScrollerAction(tPtr->vS, scrollersCallBack, tPtr);
WMMapWidget(tPtr->vS);
} else if (!shouldhave && tPtr->vS) {
WMUnmapWidget(tPtr->vS);
WMDestroyWidget(tPtr->vS);
tPtr->vS = NULL;
}
tPtr->vpos = 0;
tPtr->prevVpos = 0;
textDidResize(tPtr->view->delegate, tPtr->view);
}
Bool
WMScrollText(WMText *tPtr, int amount)
{
Bool scroll=False;
if (!tPtr)
return False;
if (amount == 0 || !tPtr->view->flags.realized)
return False;
if (amount < 0) {
if (tPtr->vpos > 0) {
if (tPtr->vpos > abs(amount)) tPtr->vpos += amount;
else tPtr->vpos=0;
scroll=True;
} } else {
int limit = tPtr->docHeight - tPtr->visible.h;
if (tPtr->vpos < limit) {
if (tPtr->vpos < limit-amount) tPtr->vpos += amount;
else tPtr->vpos = limit;
scroll = True;
} }
if (scroll && tPtr->vpos != tPtr->prevVpos) {
updateScrollers(tPtr);
paintText(tPtr);
}
tPtr->prevVpos = tPtr->vpos;
return scroll;
}
Bool
WMPageText(WMText *tPtr, Bool direction)
{
if (!tPtr) return False;
if (!tPtr->view->flags.realized) return False;
return WMScrollText(tPtr, direction?tPtr->visible.h:-tPtr->visible.h);
}
void
WMSetTextEditable(WMText *tPtr, Bool editable)
{
if (!tPtr)
return;
tPtr->flags.editable = editable;
}
int
WMGetTextEditable(WMText *tPtr)
{
if (!tPtr)
return 0;
return tPtr->flags.editable;
}
void
WMSetTextIndentNewLines(WMText *tPtr, Bool indent)
{
if (!tPtr)
return;
tPtr->flags.indentNewLine = indent;
}
void
WMSetTextIgnoresNewline(WMText *tPtr, Bool ignore)
{
if (!tPtr)
return;
tPtr->flags.ignoreNewLine = ignore;
}
Bool
WMGetTextIgnoresNewline(WMText *tPtr)
{
if (!tPtr)
return True;
return tPtr->flags.ignoreNewLine;
}
void
WMSetTextUsesMonoFont(WMText *tPtr, Bool mono)
{
if (!tPtr)
return;
if (mono) {
if(tPtr->flags.rulerShown)
WMShowTextRuler(tPtr, False);
if(tPtr->flags.alignment != WALeft)
tPtr->flags.alignment = WALeft;
}
tPtr->flags.monoFont = mono;
textDidResize(tPtr->view->delegate, tPtr->view);
}
Bool
WMGetTextUsesMonoFont(WMText *tPtr)
{
if (!tPtr)
return True;
return tPtr->flags.monoFont;
}
void
WMSetTextDefaultFont(WMText *tPtr, WMFont *font)
{
if (!tPtr)
return;
WMReleaseFont(tPtr->dFont);
if (font)
tPtr->dFont = WMRetainFont(font);
else
tPtr->dFont = WMRetainFont(WMSystemFontOfSize(tPtr->view->screen, 12));
}
WMFont *
WMGetTextDefaultFont(WMText *tPtr)
{
if (!tPtr)
return NULL;
else
return WMRetainFont(tPtr->dFont);
}
void
WMSetTextDefaultColor(WMText *tPtr, WMColor *color)
{
if (!tPtr)
return;
WMReleaseColor(tPtr->dColor);
if (color)
tPtr->dColor = WMRetainColor(color);
else
tPtr->dColor = WMBlackColor(tPtr->view->screen);
}
WMColor *
WMGetTextDefaultColor(WMText *tPtr)
{
if (!tPtr)
return NULL;
else
return WMRetainColor(tPtr->dColor);
}
void
WMSetTextAlignment(WMText *tPtr, WMAlignment alignment)
{
if (!tPtr)
return;
if(tPtr->flags.monoFont)
tPtr->flags.alignment = WALeft;
else
tPtr->flags.alignment = alignment;
WMThawText(tPtr);
}
int
WMGetTextInsertType(WMText *tPtr)
{
if (!tPtr)
return 0;
return tPtr->flags.prepend;
}
void
WMSetTextSelectionColor(WMText *tPtr, WMColor *color)
{
if (!tPtr || !color)
return;
setSelectionProperty(tPtr, NULL, color, -1);
}
WMColor *
WMGetTextSelectionColor(WMText *tPtr)
{
TextBlock *tb;
if (!tPtr)
return NULL;
tb = tPtr->currentTextBlock;
if (!tb || !tPtr->flags.ownsSelection)
return NULL;
if(!tb->selected)
return NULL;
return tb->color;
}
void
WMSetTextSelectionFont(WMText *tPtr, WMFont *font)
{
if (!tPtr || !font)
return;
setSelectionProperty(tPtr, font, NULL, -1) ;
}
WMFont *
WMGetTextSelectionFont(WMText *tPtr)
{
TextBlock *tb;
if (!tPtr)
return NULL;
tb = tPtr->currentTextBlock;
if (!tb || !tPtr->flags.ownsSelection)
return NULL;
if(!tb->selected)
return NULL;
if(tb->graphic) {
tb = getFirstNonGraphicBlockFor(tb, 1);
if(!tb)
return NULL;
}
return (tb->selected ? tb->d.font : NULL);
}
void
WMSetTextSelectionUnderlined(WMText *tPtr, int underlined)
{
if (!tPtr || (underlined!=0 && underlined !=1))
return;
setSelectionProperty(tPtr, NULL, NULL, underlined);
}
int
WMGetTextSelectionUnderlined(WMText *tPtr)
{
TextBlock *tb;
if (!tPtr)
return 0;
tb = tPtr->currentTextBlock;
if (!tb || !tPtr->flags.ownsSelection)
return 0;
if(!tb->selected)
return 0;
return tb->underlined;
}
void
WMFreezeText(WMText *tPtr)
{
if (!tPtr)
return;
tPtr->flags.frozen = True;
}
void
WMThawText(WMText *tPtr)
{
if (!tPtr)
return;
tPtr->flags.frozen = False;
if(tPtr->flags.monoFont) {
int j, c = WMGetArrayItemCount(tPtr->gfxItems);
TextBlock *tb;
/* make sure to unmap widgets no matter where they are */
/* they'll be later remapped if needed by paintText */
for(j=0; j<c; j++) {
if ((tb = (TextBlock *) WMGetFromArray(tPtr->gfxItems, j))) {
if (tb->object && ((W_VIEW(tb->d.widget))->flags.mapped))
WMUnmapWidget(tb->d.widget);
}
}
}
tPtr->flags.laidOut = False;
layOutDocument(tPtr);
updateScrollers(tPtr);
paintText(tPtr);
tPtr->flags.needsLayOut = False;
}
/* find first occurence of a string */
static char *
mystrstr(char *haystack, char *needle, unsigned short len, char *end,
Bool caseSensitive)
{
char *ptr;
if(!haystack || !needle || !end)
return NULL;
for (ptr = haystack; ptr < end; ptr++) {
if(caseSensitive) {
if (*ptr == *needle && !strncmp(ptr, needle, len))
return ptr;
} else {
if (tolower(*ptr) == tolower(*needle) &&
!strncasecmp(ptr, needle, len))
return ptr;
}
}
return NULL;
}
/* find last occurence of a string */
static char *
mystrrstr(char *haystack, char *needle, unsigned short len, char *end,
Bool caseSensitive)
{
char *ptr;
if(!haystack || !needle || !end)
return NULL;
for (ptr = haystack-2; ptr > end; ptr--) {
if(caseSensitive) {
if (*ptr == *needle && !strncmp(ptr, needle, len))
return ptr;
} else {
if (tolower(*ptr) == tolower(*needle) &&
!strncasecmp(ptr, needle, len))
return ptr;
}
}
return NULL;
}
Bool
WMFindInTextStream(WMText *tPtr, char *needle, Bool direction,
Bool caseSensitive)
{
TextBlock *tb;
char *mark=NULL;
unsigned short pos;
if (!tPtr || !needle)
return False;
#if 0
if (! (tb = tPtr->currentTextBlock)) {
if (! (tb = ( (direction > 0) ?
tPtr->firstTextBlock : tPtr->lastTextBlock) ) ){
return False;
}
} else {
/* if(tb != ((direction>0) ?tPtr->firstTextBlock : tPtr->lastTextBlock))
tb = (direction>0) ? tb->next : tb->prior; */
if(tb != tPtr->lastTextBlock)
tb = tb->prior;
}
#endif
tb = tPtr->currentTextBlock;
pos = tPtr->tpos;
while(tb) {
if (!tb->graphic) {
if(direction > 0) {
if(pos+1 < tb->used)
pos++;
if(tb->used - pos> 0 && pos > 0) {
mark = mystrstr(&tb->text[pos], needle,
strlen(needle), &tb->text[tb->used], caseSensitive);
} else {
tb = tb->next;
pos = 0;
continue;
}
} else {
if(pos-1 > 0)
pos--;
if(pos > 0) {
mark = mystrrstr(&tb->text[pos], needle,
strlen(needle), tb->text, caseSensitive);
} else {
tb = tb->prior;
if(!tb)
return False;
pos = tb->used;
continue;
}
}
if(mark) {
WMFont *font = tPtr->flags.monoFont?tPtr->dFont:tb->d.font;
tPtr->tpos = (int)(mark - tb->text);
tPtr->currentTextBlock = tb;
updateCursorPosition(tPtr);
tPtr->sel.y = tPtr->cursor.y+5;
tPtr->sel.h = tPtr->cursor.h-10;
tPtr->sel.x = tPtr->cursor.x +1;
tPtr->sel.w = WMIN(WMWidthOfString(font,
&tb->text[tPtr->tpos], strlen(needle)),
tPtr->docWidth - tPtr->sel.x);
tPtr->flags.ownsSelection = True;
paintText(tPtr);
return True;
}
}
tb = (direction>0) ? tb->next : tb->prior;
if(tb) {
pos = (direction>0) ? 0 : tb->used;
}
}
return False;
}
Bool
WMReplaceTextSelection(WMText *tPtr, char *replacement)
{
if (!tPtr)
return False;
if (!tPtr->flags.ownsSelection)
return False;
removeSelection(tPtr);
if(replacement) {
insertTextInteractively(tPtr, replacement, strlen(replacement));
updateCursorPosition(tPtr);
paintText(tPtr);
}
return True;
}
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