#include #include #include #include "newt.h" #include "newt_pr.h" enum type { CHECK, RADIO }; struct checkbox { char * text; char * seq; char * result; newtComponent prevButton, lastButton; enum type type; char value; int active, inactive; const void * data; int flags; int hasFocus; }; static void makeActive(newtComponent co); static void cbDraw(newtComponent c); static void cbDestroy(newtComponent co); struct eventResult cbEvent(newtComponent co, struct event ev); static struct componentOps cbOps = { cbDraw, cbEvent, cbDestroy, newtDefaultPlaceHandler, newtDefaultMappedHandler, } ; newtComponent newtRadiobutton(int left, int top, const char * text, int isDefault, newtComponent prevButton) { newtComponent co; newtComponent curr; struct checkbox * rb; char initialValue; if (isDefault) initialValue = '*'; else initialValue = ' '; co = newtCheckbox(left, top, text, initialValue, " *", NULL); rb = co->data; rb->type = RADIO; rb->prevButton = prevButton; for (curr = co; curr; curr = rb->prevButton) { rb = curr->data; rb->lastButton = co; } return co; } newtComponent newtRadioGetCurrent(newtComponent setMember) { struct checkbox * rb = setMember->data; setMember = rb->lastButton; rb = setMember->data; while (rb && rb->value != '*') { setMember = rb->prevButton; if (!setMember) return NULL; rb = setMember->data; } return setMember; } char newtCheckboxGetValue(newtComponent co) { struct checkbox * cb = co->data; return cb->value; } void newtCheckboxSetValue(newtComponent co, char value) { struct checkbox * cb = co->data; *cb->result = value; cbDraw(co); } newtComponent newtCheckbox(int left, int top, const char * text, char defValue, const char * seq, char * result) { newtComponent co; struct checkbox * cb; if (!seq) seq = " *"; co = malloc(sizeof(*co)); cb = malloc(sizeof(struct checkbox)); co->data = cb; cb->flags = 0; if (result) cb->result = result; else cb->result = &cb->value; cb->text = strdup(text); cb->seq = strdup(seq); cb->type = CHECK; cb->hasFocus = 0; cb->inactive = COLORSET_CHECKBOX; cb->active = COLORSET_ACTCHECKBOX; defValue ? (*cb->result = defValue) : (*cb->result = cb->seq[0]); co->ops = &cbOps; co->callback = NULL; co->height = 1; co->width = strlen(text) + 4; co->top = top; co->left = left; co->takesFocus = 1; return co; } void newtCheckboxSetFlags(newtComponent co, int flags, enum newtFlagsSense sense) { struct checkbox * cb = co->data; int row, col; cb->flags = newtSetFlags(cb->flags, flags, sense); if (!(cb->flags & NEWT_FLAG_DISABLED)) co->takesFocus = 1; else co->takesFocus = 0; newtGetrc(&row, &col); cbDraw(co); newtGotorc(row, col); } static void cbDraw(newtComponent c) { struct checkbox * cb = c->data; if (c->top == -1 || !c->isMapped) return; if (cb->flags & NEWT_FLAG_DISABLED) { cb->inactive = NEWT_COLORSET_DISENTRY; cb->active = NEWT_COLORSET_DISENTRY; } else { cb->inactive = COLORSET_CHECKBOX; cb->active = COLORSET_ACTCHECKBOX; } SLsmg_set_color(cb->inactive); newtGotorc(c->top, c->left); switch (cb->type) { case RADIO: SLsmg_write_string("( ) "); break; case CHECK: SLsmg_write_string("[ ] "); break; default: break; } SLsmg_write_string(cb->text); if (cb->hasFocus) SLsmg_set_color(cb->active); newtGotorc(c->top, c->left + 1); SLsmg_write_char(*cb->result); } static void cbDestroy(newtComponent co) { struct checkbox * cb = co->data; free(cb->text); free(cb->seq); free(cb); free(co); } struct eventResult cbEvent(newtComponent co, struct event ev) { struct checkbox * cb = co->data; struct eventResult er; const char * cur; er.result = ER_IGNORED; er.u.focus = NULL; if (ev.when == EV_NORMAL) { switch (ev.event) { case EV_FOCUS: cb->hasFocus = 1; cbDraw(co); er.result = ER_SWALLOWED; break; case EV_UNFOCUS: cb->hasFocus = 0; cbDraw(co); er.result = ER_SWALLOWED; break; case EV_KEYPRESS: if (ev.u.key == ' ') { if (cb->type == RADIO) { makeActive(co); } else if (cb->type == CHECK) { cur = strchr(cb->seq, *cb->result); if (!cur) *cb->result = *cb->seq; else { cur++; if (! *cur) *cb->result = *cb->seq; else *cb->result = *cur; } cbDraw(co); er.result = ER_SWALLOWED; if (co->callback) co->callback(co, co->callbackData); } else { er.result = ER_IGNORED; } } else if(ev.u.key == NEWT_KEY_ENTER) { er.result = ER_IGNORED; } else { er.result = ER_IGNORED; } break; case EV_MOUSE: if (ev.u.mouse.type == MOUSE_BUTTON_DOWN) { if (cb->type == RADIO) { makeActive(co); } else if (cb->type == CHECK) { cur = strchr(cb->seq, *cb->result); if (!cur) *cb->result = *cb->seq; else { cur++; if (! *cur) *cb->result = *cb->seq; else *cb->result = *cur; } cbDraw(co); er.result = ER_SWALLOWED; if (co->callback) co->callback(co, co->callbackData); } } } } else er.result = ER_IGNORED; return er; } static void makeActive(newtComponent co) { struct checkbox * cb = co->data; struct checkbox * rb; newtComponent curr; /* find the one that's turned off */ curr = cb->lastButton; rb = curr->data; while (curr && rb->value == rb->seq[0]) { curr = rb->prevButton; if (curr) rb = curr->data; } if (curr) { rb->value = rb->seq[0]; cbDraw(curr); } cb->value = cb->seq[1]; cbDraw(co); if (co->callback) co->callback(co, co->callbackData); } 965c48170061eb'>grid.c
blob: 37d2b2e7447b68f3f0a3f0dfecae133c0bc221e2 (plain) 
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#include <alloca.h>
#include <stdlib.h>
#include <string.h>

#include "newt.h"
#include "newt_pr.h"

struct gridField {
    enum newtGridElement type;
    union {
	newtGrid grid;
	newtComponent co;
    } u;
    int padLeft, padTop, padRight, padBottom;
    int anchor;
    int flags;
}; 

struct grid_s {
    int rows, cols;
    int width, height;		/* totals, -1 means unknown */
    struct gridField ** fields;
};

/* this is a bit of a hack */
extern struct componentOps formOps[];

newtGrid newtCreateGrid(int cols, int rows) {
    newtGrid grid;

    grid = malloc(sizeof(*grid));
    grid->rows = rows;
    grid->cols = cols;

    grid->fields = malloc(sizeof(*grid->fields) * cols);
    while (cols--) {
	grid->fields[cols] = malloc(sizeof(**(grid->fields)) * rows);
	memset(grid->fields[cols], 0, sizeof(**(grid->fields)) * rows);
    }

    grid->width = grid->height = -1;

    return grid;
}

void newtGridSetField(newtGrid grid, int col, int row, 
		      enum newtGridElement type, void * val, int padLeft,
		      int padTop, int padRight, int padBottom, int anchor,
		      int flags) {
    struct gridField * field = &grid->fields[col][row];

    if (field->type == NEWT_GRID_SUBGRID) 
	newtGridFree(field->u.grid, 1);

    field->type = type;
    field->u.co = (void *) val;

    field->padLeft = padLeft;
    field->padRight = padRight;
    field->padTop = padTop;
    field->padBottom = padBottom;
    field->anchor = anchor;
    field->flags = flags;

    grid->width = grid->height = -1;
}

static void distSpace(int extra, int items, int * list) {
    int all, some, i;

    all = extra / items;
    some = extra % items;
    for (i = 0; i < items; i++) {
	list[i] += all;
	if (some) {
	    list[i]++;
	    some--;
	}
    }
}

static void shuffleGrid(newtGrid grid, int left, int top, int set) {
    struct gridField * field;
    int row, col;
    int i, j;
    int minWidth, minHeight;
    int * widths, * heights;
    int thisLeft, thisTop;
    int x, y, remx, remy;

    widths = alloca(sizeof(*widths) * grid->cols);
    memset(widths, 0, sizeof(*widths) * grid->cols);
    heights = alloca(sizeof(*heights) * grid->rows);
    memset(heights, 0, sizeof(*heights) * grid->rows);

    minWidth = 0;
    for (row = 0; row < grid->rows; row++) {
	i = 0;
	for (col = 0; col < grid->cols; col++) {
	    field = &grid->fields[col][row];
	    if (field->type == NEWT_GRID_SUBGRID) {
		/* we'll have to redo this later */
		if (field->u.grid->width == -1) 
		    shuffleGrid(field->u.grid, left, top, 0);
		j = field->u.grid->width;
	    } else if (field->type == NEWT_GRID_COMPONENT) {
		if (field->u.co->ops == formOps)
		    newtFormSetSize(field->u.co);
		j = field->u.co->width;
	    } else 
		j = 0;

	    j += field->padLeft + field->padRight;

	    if (j > widths[col]) widths[col] = j;
	    i += widths[col];
	}

	if (i > minWidth) minWidth = i;
    }

    minHeight = 0;
    for (col = 0; col < grid->cols; col++) {
	i = 0;
	for (row = 0; row < grid->rows; row++) {
	    field = &grid->fields[col][row];
	    if (field->type == NEWT_GRID_SUBGRID) {
		/* we'll have to redo this later */
		if (field->u.grid->height == -1) 
		    shuffleGrid(field->u.grid, 0, 0, 0);
		j = field->u.grid->height;
	    } else if (field->type == NEWT_GRID_COMPONENT){
		j = field->u.co->height;
	    } else 
		j = 0;

	    j += field->padTop + field->padBottom;

	    if (j > heights[row]) heights[row] = j;
	    i += heights[row];
	}

	if (i > minHeight) minHeight = i;
    }

    /* this catches the -1 case */
    if (grid->width < minWidth) grid->width = minWidth;		/* ack! */
    if (grid->height < minHeight) grid->height = minHeight;	/* ditto! */

    if (!set) return;

    distSpace(grid->width - minWidth, grid->cols, widths);
    distSpace(grid->height - minHeight, grid->rows, heights);

    thisTop = top;
    for (row = 0; row < grid->rows; row++) {
	i = 0;
	thisLeft = left;
	for (col = 0; col < grid->cols; col++) {
	    field = &grid->fields[col][row];

	    if (field->type == NEWT_GRID_EMPTY) continue;

	    x = thisLeft + field->padLeft;
	    remx = widths[col] - field->padLeft - field->padRight;
	    y = thisTop + field->padTop;
	    remy = heights[row] - field->padTop - field->padBottom;

	    if (field->type == NEWT_GRID_SUBGRID) {
		remx -= field->u.grid->width;
		remy -= field->u.grid->height;
	    } else if (field->type == NEWT_GRID_COMPONENT) {
		remx -= field->u.co->width;
		remy -= field->u.co->height;
	    }

	    if (!(field->flags & NEWT_GRID_FLAG_GROWX)) {
		if (field->anchor & NEWT_ANCHOR_RIGHT)
		    x += remx;
		else if (!(field->anchor & NEWT_ANCHOR_LEFT))
		    x += (remx / 2);
	    }
	 
	    if (!(field->flags & NEWT_GRID_FLAG_GROWY)) {
		if (field->anchor & NEWT_ANCHOR_BOTTOM)
		    y += remx;
		else if (!(field->anchor & NEWT_ANCHOR_TOP))
		    y += (remy / 2);
	    }

	    if (field->type == NEWT_GRID_SUBGRID) {
		if (field->flags & NEWT_GRID_FLAG_GROWX)
		    field->u.grid->width = widths[col] - field->padLeft 
						- field->padRight;
		if (field->flags & NEWT_GRID_FLAG_GROWY)
		    field->u.grid->height = heights[col] - field->padTop
						- field->padBottom;

		shuffleGrid(field->u.grid, x, y, 1);
	    } else if (field->type == NEWT_GRID_COMPONENT) {
		field->u.co->ops->place(field->u.co, x, y);
	    }

	    thisLeft += widths[col];
	}

	thisTop += heights[row];
    }
}

void newtGridPlace(newtGrid grid, int left, int top) {
    shuffleGrid(grid, left, top, 1);
}

void newtGridFree(newtGrid grid, int recurse) {
    int row, col;

    for (col = 0; col < grid->cols; col++) {
	if (recurse) {
	    for (row = 0; row < grid->rows; row++) {