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-rw-r--r--muse2/muse/widgets/utils.cpp358
1 files changed, 358 insertions, 0 deletions
diff --git a/muse2/muse/widgets/utils.cpp b/muse2/muse/widgets/utils.cpp
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+//=========================================================
+// MusE
+// Linux Music Editor
+// $Id: utils.cpp,v 1.1.1.1.2.3 2009/11/14 03:37:48 terminator356 Exp $
+// (C) Copyright 1999 Werner Schweer (ws@seh.de)
+//=========================================================
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "utils.h"
+#include <math.h>
+#include <q3frame.h>
+#include <sys/time.h>
+
+// Quick bit-shift lookup table
+const unsigned int bitShiftLU[32] = { 0x1, 0x2, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80,
+ 0x100, 0x200, 0x400, 0x800, 0x1000, 0x2000, 0x4000, 0x8000,
+ 0x10000, 0x20000, 0x40000, 0x80000, 0x100000, 0x200000, 0x400000, 0x800000,
+ 0x1000000, 0x2000000, 0x4000000, 0x8000000, 0x10000000, 0x20000000, 0x40000000, 0x80000000 };
+
+//---------------------------------------------------------
+// curTime
+//---------------------------------------------------------
+
+double curTime()
+ {
+ struct timeval t;
+ gettimeofday(&t, 0);
+ return (double)((double)t.tv_sec + (t.tv_usec / 1000000.0));
+ }
+
+//---------------------------------------------------------
+// dump
+// simple debug output
+//---------------------------------------------------------
+
+void dump(const unsigned char* p, int n)
+ {
+ printf("dump %d\n", n);
+ for (int i = 0; i < n; ++i) {
+ printf("%02x ", *p++);
+ if ((i > 0) && (i % 16 == 0) && (i+1 < n))
+ printf("\n");
+ }
+ printf("\n");
+ }
+
+//---------------------------------------------------------
+// num2cols
+//---------------------------------------------------------
+
+int num2cols(int min, int max)
+ {
+ int amin = abs(min);
+ int amax = abs(max);
+ int l = amin > amax ? amin : amax;
+ return int(log10(l)) + 1;
+ }
+
+//---------------------------------------------------------
+// hLine
+//---------------------------------------------------------
+
+Q3Frame* hLine(QWidget* w)
+ {
+ Q3Frame* delim = new Q3Frame(w);
+ delim->setFrameStyle(Q3Frame::HLine | Q3Frame::Sunken);
+ return delim;
+ }
+
+//---------------------------------------------------------
+// vLine
+//---------------------------------------------------------
+
+Q3Frame* vLine(QWidget* w)
+ {
+ Q3Frame* delim = new Q3Frame(w);
+ delim->setFrameStyle(Q3Frame::VLine | Q3Frame::Sunken);
+ return delim;
+ }
+
+//---------------------------------------------------------
+// bitmap2String
+// 5c -> 1-4 1-6
+//
+// 01011100
+//
+//---------------------------------------------------------
+
+QString bitmap2String(int bm)
+ {
+ QString s;
+//printf("bitmap2string: bm %04x", bm);
+ if (bm == 0xffff)
+ s = "all";
+ else if (bm == 0)
+ s = "none";
+ else {
+ bool range = false;
+ int first = 0;
+ bool needSpace = false;
+ bm &= 0xffff;
+ //for (int i = 0; i < 17; ++i) {
+ for (int i = 0; i < 16; ++i) {
+ if ((1 << i) & bm) {
+ if (!range) {
+ range = true;
+ first = i;
+ }
+ }
+ else {
+ if (range) {
+ if (needSpace)
+ s += " ";
+ QString ns;
+ if (first == i-1)
+ ns.sprintf("%d", first+1);
+ else
+ ns.sprintf("%d-%d", first+1, i);
+ s += ns;
+ needSpace = true;
+ }
+ range = false;
+ }
+ }
+ }
+//printf(" -> <%s>\n", s.latin1());
+ return s;
+ }
+
+//---------------------------------------------------------
+// u32bitmap2String
+//---------------------------------------------------------
+// Added by Tim. p3.3.8
+
+QString u32bitmap2String(unsigned int bm)
+ {
+ QString s;
+//printf("bitmap2string: bm %04x", bm);
+ //if (bm == 0xffff)
+ if (bm == 0xffffffff)
+ s = "all";
+ else if (bm == 0)
+ s = "none";
+ else {
+ bool range = false;
+ int first = 0;
+ //unsigned int first = 0;
+ bool needSpace = false;
+ //bm &= 0xffff;
+ //for (int i = 0; i < 17; ++i) {
+ for (int i = 0; i < 33; ++i) {
+ if ((i < 32) && ((1U << i) & bm)) {
+ if (!range) {
+ range = true;
+ first = i;
+ }
+ }
+ else {
+ if (range) {
+ if (needSpace)
+ s += " ";
+ QString ns;
+ if (first == i-1)
+ ns.sprintf("%d", first+1);
+ //ns.sprintf("%u", first+1);
+ else
+ ns.sprintf("%d-%d", first+1, i);
+ //ns.sprintf("%u-%u", first+1, i);
+ s += ns;
+ needSpace = true;
+ }
+ range = false;
+ }
+ }
+ }
+//printf(" -> <%s>\n", s.latin1());
+ return s;
+ }
+
+//---------------------------------------------------------
+// string2bitmap
+//---------------------------------------------------------
+
+int string2bitmap(const QString& str)
+ {
+ int val = 0;
+ QString ss = str.simplifyWhiteSpace();
+ const char* s = ss.latin1();
+//printf("string2bitmap <%s>\n", s);
+
+ if (s == 0)
+ return 0;
+ if (strcmp(s, "all") == 0)
+ return 0xffff;
+ if (strcmp(s, "none") == 0)
+ return 0;
+// printf("str2bitmap: <%s> ", str.latin1);
+ int tval = 0;
+ bool range = false;
+ int sval = 0;
+ while (*s == ' ')
+ ++s;
+ while (*s) {
+ if (*s >= '0' && *s <= '9') {
+ tval *= 10;
+ tval += *s - '0';
+ }
+ else if (*s == ' ' || *s == ',') {
+ if (range) {
+ for (int i = sval-1; i < tval; ++i)
+ val |= (1 << i);
+ range = false;
+ }
+ else {
+ val |= (1 << (tval-1));
+ }
+ tval = 0;
+ }
+ else if (*s == '-') {
+ range = true;
+ sval = tval;
+ tval = 0;
+ }
+ ++s;
+ }
+ if (range && tval) {
+ for (int i = sval-1; i < tval; ++i)
+ val |= (1 << i);
+ }
+ else if (tval) {
+ val |= (1 << (tval-1));
+ }
+ return val & 0xffff;
+ }
+
+//---------------------------------------------------------
+// string2u32bitmap
+//---------------------------------------------------------
+// Added by Tim. p3.3.8
+
+unsigned int string2u32bitmap(const QString& str)
+ {
+ //int val = 0;
+ unsigned int val = 0;
+ QString ss = str.simplifyWhiteSpace();
+ const char* s = ss.latin1();
+//printf("string2bitmap <%s>\n", s);
+
+ if (s == 0)
+ return 0;
+ if (strcmp(s, "all") == 0)
+ //return 0xffff;
+ return 0xffffffff;
+ if (strcmp(s, "none") == 0)
+ return 0;
+// printf("str2bitmap: <%s> ", str.latin1);
+ int tval = 0;
+ //unsigned int tval = 0;
+ bool range = false;
+ int sval = 0;
+ //unsigned int sval = 0;
+ while (*s == ' ')
+ ++s;
+ while (*s) {
+ if (*s >= '0' && *s <= '9') {
+ tval *= 10;
+ tval += *s - '0';
+ }
+ else if (*s == ' ' || *s == ',') {
+ if (range) {
+ for (int i = sval-1; i < tval; ++i)
+ //for (unsigned int i = sval-1; i < tval; ++i)
+ val |= (1U << i);
+ range = false;
+ }
+ else {
+ val |= (1U << (tval-1));
+ }
+ tval = 0;
+ }
+ else if (*s == '-') {
+ range = true;
+ sval = tval;
+ tval = 0;
+ }
+ ++s;
+ }
+ if (range && tval) {
+ for (int i = sval-1; i < tval; ++i)
+ //for (unsigned int i = sval-1; i < tval; ++i)
+ val |= (1U << i);
+ }
+ else if (tval) {
+ val |= (1U << (tval-1));
+ }
+ //return val & 0xffff;
+ return val;
+ }
+
+//---------------------------------------------------------
+// autoAdjustFontSize
+// w: Widget to auto adjust font size
+// s: String to fit
+// ignoreWidth: Set if dealing with a vertically constrained widget - one which is free to resize horizontally.
+// ignoreHeight: Set if dealing with a horizontally constrained widget - one which is free to resize vertically.
+//---------------------------------------------------------
+// Added by Tim. p3.3.8
+
+bool autoAdjustFontSize(Q3Frame* w, const QString& s, bool ignoreWidth, bool ignoreHeight, int max, int min)
+{
+ // In case the max or min was obtained from QFont::pointSize() which returns -1
+ // if the font is a pixel font, or if min is greater than max...
+ if(!w || (min < 0) || (max < 0) || (min > max))
+ return false;
+
+ // Limit the minimum and maximum sizes to something at least readable.
+ if(max < 4)
+ max = 4;
+ if(min < 4)
+ min = 4;
+
+ QRect cr = w->contentsRect();
+ QRect r;
+ QFont fnt = w->font();
+ // An extra amount just to be sure - I found it was still breaking up two words which would fit on one line.
+ int extra = 4;
+ // Allow at least one loop. min can be equal to max.
+ for(int i = max; i >= min; --i)
+ {
+ fnt.setPointSize(i);
+ QFontMetrics fm(fnt);
+ r = fm.boundingRect(s);
+ // Would the text fit within the widget?
+ if((ignoreWidth || (r.width() <= (cr.width() - extra))) && (ignoreHeight || (r.height() <= cr.height())))
+ break;
+ }
+ // Added by Tim. p3.3.9
+ //printf("autoAdjustFontSize: ptsz:%d widget:%s before setFont x:%d y:%d w:%d h:%d\n", fnt.pointSize(), w->name(), w->x(), w->y(), w->width(), w->height());
+
+ // Here we will always have a font ranging from min to max point size.
+ w->setFont(fnt);
+ // Added by Tim. p3.3.9
+ //printf("autoAdjustFontSize: ptsz:%d widget:%s x:%d y:%d w:%d h:%d frame w:%d rw:%d rh:%d\n", fnt.pointSize(), w->name(), w->x(), w->y(), w->width(), w->height(), w->frameWidth(), cr.width(), cr.height());
+
+ // Force minimum height. Use the expected height for the highest given point size.
+ // This way the mixer strips aren't all different label heights, but can be larger if necessary.
+ // Only if ignoreHeight is set (therefore the height is adjustable).
+ if(ignoreHeight)
+ {
+ fnt.setPointSize(max);
+ QFontMetrics fm(fnt);
+ // Set the label's minimum height equal to the height of the font.
+ w->setMinimumHeight(fm.height() + 2 * w->frameWidth());
+ }
+
+ return true;
+}
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