mirror of https://github.com/OpenTTD/OpenTTD.git
(svn r2607) - Feature: add support for truncating strings to a given (pixel) length. Function courtesy of Ludde.
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a09342c1fc
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100
gfx.c
100
gfx.c
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@ -2,6 +2,7 @@
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#include "openttd.h"
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#include "spritecache.h"
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#include "strings.h"
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#include "string.h"
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#include "gfx.h"
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#include "table/palettes.h"
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#include "hal.h"
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@ -255,9 +256,63 @@ enum {
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ASCII_COLORSTART = 15,
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};
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/** Truncate a given string to a maximum width if neccessary.
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* If the string is truncated, add three dots ('...') to show this.
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* @param *dest string that is checked and possibly truncated
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* @param maxw maximum width in pixels of the string
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* @return new width of (truncated) string */
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static int TruncateString(char *str, uint maxw)
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{
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int w = 0;
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int base = _stringwidth_base;
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int ddd, ddd_w;
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byte c;
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char *ddd_pos;
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base = _stringwidth_base;
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ddd_w = ddd = GetCharacterWidth(base + '.') * 3;
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for (c = *str, ddd_pos = str; *str != '\0'; c = (*++str)) {
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if (c >= ASCII_LETTERSTART) {
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w += GetCharacterWidth(base + c);
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if (w >= maxw) {
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// string got too big... insert dotdotdot
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ddd_pos[0] = ddd_pos[1] = ddd_pos[2] = '.';
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ddd_pos[3] = 0;
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return ddd_w;
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}
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} else {
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if (c == ASCII_SETX) str++;
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else if (c == ASCII_SETXY) str += 2;
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else if (c == ASCII_TINYFONT) {
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base = 224;
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ddd = GetCharacterWidth(base + '.') * 3;
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} else if (c == ASCII_BIGFONT) {
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base = 448;
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ddd = GetCharacterWidth(base + '.') * 3;
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}
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}
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// Remember the last position where three dots fit.
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if (w + ddd < maxw) {
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ddd_w = w + ddd;
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ddd_pos = str;
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}
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}
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return w;
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}
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static inline int TruncateStringID(StringID src, char *dest, uint maxw)
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{
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GetString(dest, src);
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return TruncateString(dest, maxw);
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}
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/* returns right coordinate */
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int DrawString(int x, int y, uint16 str, uint16 color)
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int DrawString(int x, int y, StringID str, uint16 color)
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{
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char buffer[512];
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@ -265,8 +320,15 @@ int DrawString(int x, int y, uint16 str, uint16 color)
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return DoDrawString(buffer, x, y, color);
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}
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int DrawStringTruncated(int x, int y, StringID str, uint16 color, uint maxw)
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{
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char buffer[512];
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TruncateStringID(str, buffer, maxw);
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return DoDrawString(buffer, x, y, color);
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}
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void DrawStringRightAligned(int x, int y, uint16 str, uint16 color)
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void DrawStringRightAligned(int x, int y, StringID str, uint16 color)
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{
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char buffer[512];
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@ -274,8 +336,16 @@ void DrawStringRightAligned(int x, int y, uint16 str, uint16 color)
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DoDrawString(buffer, x - GetStringWidth(buffer), y, color);
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}
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void DrawStringRightAlignedTruncated(int x, int y, StringID str, uint16 color, uint maxw)
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{
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char buffer[512];
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int DrawStringCentered(int x, int y, uint16 str, uint16 color)
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TruncateStringID(str, buffer, maxw);
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DoDrawString(buffer, x - GetStringWidth(buffer), y, color);
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}
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int DrawStringCentered(int x, int y, StringID str, uint16 color)
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{
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char buffer[512];
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int w;
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@ -288,12 +358,25 @@ int DrawStringCentered(int x, int y, uint16 str, uint16 color)
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return w;
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}
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void DrawStringCenterUnderline(int x, int y, uint16 str, uint16 color)
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int DrawStringCenteredTruncated(int x, int y, StringID str, uint16 color, uint maxw)
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{
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char buffer[512];
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int w = TruncateStringID(str, buffer, maxw);
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return DoDrawString(buffer, x - (w / 2), y, color);
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}
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void DrawStringCenterUnderline(int x, int y, StringID str, uint16 color)
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{
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int w = DrawStringCentered(x, y, str, color);
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GfxFillRect(x - (w >> 1), y + 10, x - (w >> 1) + w, y + 10, _string_colorremap[1]);
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}
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void DrawStringCenterUnderlineTruncated(int x, int y, StringID str, uint16 color, uint maxw)
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{
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int w = DrawStringCenteredTruncated(x, y, str, color, maxw);
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GfxFillRect(x - (w >> 1), y + 10, x - (w >> 1) + w, y + 10, _string_colorremap[1]);
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}
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static uint32 FormatStringLinebreaks(char *str, int maxw)
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{
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int num = 0;
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@ -334,7 +417,6 @@ static uint32 FormatStringLinebreaks(char *str, int maxw)
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}
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}
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void DrawStringMultiCenter(int x, int y, uint16 str, int maxw)
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{
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char buffer[512];
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@ -557,6 +639,14 @@ skip_cont:;
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}
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}
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int DoDrawStringTruncated(const char *str, int x, int y, uint16 color, uint maxw)
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{
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char buffer[512];
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ttd_strlcpy(buffer, str, sizeof(buffer));
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TruncateString(buffer, maxw);
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return DoDrawString(buffer, x, y, color);
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}
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void DrawSprite(uint32 img, int x, int y)
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{
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if (img & 0x8000) {
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19
gfx.h
19
gfx.h
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@ -35,11 +35,22 @@ typedef struct CursorVars {
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void RedrawScreenRect(int left, int top, int right, int bottom);
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void GfxScroll(int left, int top, int width, int height, int xo, int yo);
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int DrawStringCentered(int x, int y, uint16 str, uint16 color);
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int DrawString(int x, int y, uint16 str, uint16 color);
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void DrawStringCenterUnderline(int x, int y, uint16 str, uint16 color);
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int DrawStringCentered(int x, int y, StringID str, uint16 color);
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int DrawStringCenteredTruncated(int x, int y, StringID str, uint16 color, uint maxw);
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int DrawString(int x, int y, StringID str, uint16 color);
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int DrawStringTruncated(int x, int y, StringID str, uint16 color, uint maxw);
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int DoDrawString(const char *string, int x, int y, uint16 color);
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void DrawStringRightAligned(int x, int y, uint16 str, uint16 color);
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int DoDrawStringTruncated(const char *str, int x, int y, uint16 color, uint maxw);
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void DrawStringCenterUnderline(int x, int y, StringID str, uint16 color);
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void DrawStringCenterUnderlineTruncated(int x, int y, StringID str, uint16 color, uint maxw);
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void DrawStringRightAligned(int x, int y, StringID str, uint16 color);
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void DrawStringRightAlignedTruncated(int x, int y, StringID str, uint16 color, uint maxw);
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void GfxFillRect(int left, int top, int right, int bottom, int color);
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void GfxDrawLine(int left, int top, int right, int bottom, int color);
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void DrawFrameRect(int left, int top, int right, int bottom, int color, int flags);
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