mirror of
https://github.com/vdr-projects/vdr.git
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- All logging now goes to LOG_ERR, because some systems split error, info and debug messages into separate files, which repeatedly caused extra efforts to find out when incomplete log excerpts were attached to problem reports in the past. - Updated the Estonian OSD texts (thanks to Arthur Konovalov). - Fixed a problem with characters >0x7F in the modified version of skipspace() (thanks to Marco Schlüßler). - Fixed a bug I introduced when simplifying the original patch for detecting Premiere NVOD channel links (crash reported by Malte Schröder). - Internationalization is now done with 'gettext' (following a suggestion by Lucian Muresan). Plugin authors may want to use the Perl script 'i18n-to-gettext.pl' to convert their internationalized texts to the gettext format (see the instructions inside that script file). The function cPlugin::RegisterI18n() is still present for compatibility, but doesn't have any more functionality. So plugins that don't convert their texts to the gettext format will only present English texts. See PLUGINS.html, section "Internationalization", for instructions on how to make strings in arrays translatable. See README.i18n for information on how to create new or maintain existing translations. - The three letter language codes and their aliases are stored in i18n.c, and each translation file only contains one of them to link that language name to the code. - The 'newplugin' script has been extended to generate the Makefile section for i18n support. - The parameter OSDLanguage in 'setup.conf' is now a string and holds the locale code of the selected OSD language (e.g. en_US). If Setup.OSDLanguage is not set to a particular locale that is found in VDR's locale directory, the locale as defined in the system environment is used by default. - The list of tracks given in cStatus::SetAudioTrack() is now NULL terminated, so that plugins can actually use all the strings in the list, not just the one pointed to by Index (thanks to Alexander Rieger). - Fixed handling kLeft in the calls to cStatus::MsgOsdTextItem() (thanks to Alexander Rieger). - Added the "...or (at your option) any later version" phrase to the license information of all plugins, and also the 'newplugin' script (suggested by Ville Skyttä). Plugin authors may want to consider doing the same. - Fixed the link to the GPL2 at http://www.gnu.org in vdr.c (thanks to Ville Skyttä). - cBitmap::SetXpm() now checks whether the given Xpm pointer is not NULL, to avoid a crash with files that only contain "/* XPM */" (suggested by Andreas Mair). - Added a debug error message to cReceiver::~cReceiver() in case it is still attached to a device (thanks to Reinhard Nissl).
892 lines
25 KiB
C
892 lines
25 KiB
C
/*
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* osd.c: Abstract On Screen Display layer
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*
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* See the main source file 'vdr.c' for copyright information and
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* how to reach the author.
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*
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* $Id: osd.c 1.72 2007/08/12 11:33:17 kls Exp $
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*/
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#include "osd.h"
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#include <math.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <sys/unistd.h>
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#include "tools.h"
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// --- cPalette --------------------------------------------------------------
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cPalette::cPalette(int Bpp)
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{
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SetBpp(Bpp);
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SetAntiAliasGranularity(10, 10);
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}
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void cPalette::SetAntiAliasGranularity(uint FixedColors, uint BlendColors)
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{
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if (FixedColors >= MAXNUMCOLORS || BlendColors == 0)
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antiAliasGranularity = MAXNUMCOLORS - 1;
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else {
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int ColorsForBlending = MAXNUMCOLORS - FixedColors;
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int ColorsPerBlend = ColorsForBlending / BlendColors + 2; // +2 = the full foreground and background colors, which are amoung the fixed colors
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antiAliasGranularity = double(MAXNUMCOLORS - 1) / (ColorsPerBlend - 1);
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}
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}
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void cPalette::Reset(void)
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{
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numColors = 0;
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modified = false;
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}
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int cPalette::Index(tColor Color)
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{
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// Check if color is already defined:
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for (int i = 0; i < numColors; i++) {
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if (color[i] == Color)
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return i;
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}
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// No exact color, try a close one:
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int i = ClosestColor(Color, 4);
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if (i >= 0)
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return i;
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// No close one, try to define a new one:
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if (numColors < maxColors) {
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color[numColors++] = Color;
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modified = true;
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return numColors - 1;
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}
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// Out of colors, so any close color must do:
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return ClosestColor(Color);
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}
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void cPalette::SetBpp(int Bpp)
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{
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bpp = Bpp;
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maxColors = 1 << bpp;
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Reset();
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}
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void cPalette::SetColor(int Index, tColor Color)
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{
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if (Index < maxColors) {
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if (numColors <= Index) {
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numColors = Index + 1;
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modified = true;
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}
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else
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modified |= color[Index] != Color;
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color[Index] = Color;
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}
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}
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const tColor *cPalette::Colors(int &NumColors)
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{
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NumColors = numColors;
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return numColors ? color : NULL;
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}
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void cPalette::Take(const cPalette &Palette, tIndexes *Indexes, tColor ColorFg, tColor ColorBg)
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{
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for (int i = 0; i < Palette.numColors; i++) {
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tColor Color = Palette.color[i];
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if (ColorFg || ColorBg) {
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switch (i) {
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case 0: Color = ColorBg; break;
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case 1: Color = ColorFg; break;
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}
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}
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int n = Index(Color);
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if (Indexes)
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(*Indexes)[i] = n;
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}
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}
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void cPalette::Replace(const cPalette &Palette)
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{
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for (int i = 0; i < Palette.numColors; i++)
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SetColor(i, Palette.color[i]);
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numColors = Palette.numColors;
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antiAliasGranularity = Palette.antiAliasGranularity;
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}
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tColor cPalette::Blend(tColor ColorFg, tColor ColorBg, uint8_t Level)
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{
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if (antiAliasGranularity > 0)
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Level = uint8_t(int(Level / antiAliasGranularity + 0.5) * antiAliasGranularity);
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int Af = (ColorFg & 0xFF000000) >> 24;
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int Rf = (ColorFg & 0x00FF0000) >> 16;
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int Gf = (ColorFg & 0x0000FF00) >> 8;
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int Bf = (ColorFg & 0x000000FF);
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int Ab = (ColorBg & 0xFF000000) >> 24;
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int Rb = (ColorBg & 0x00FF0000) >> 16;
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int Gb = (ColorBg & 0x0000FF00) >> 8;
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int Bb = (ColorBg & 0x000000FF);
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int A = (Ab + (Af - Ab) * Level / 0xFF) & 0xFF;
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int R = (Rb + (Rf - Rb) * Level / 0xFF) & 0xFF;
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int G = (Gb + (Gf - Gb) * Level / 0xFF) & 0xFF;
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int B = (Bb + (Bf - Bb) * Level / 0xFF) & 0xFF;
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return (A << 24) | (R << 16) | (G << 8) | B;
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}
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int cPalette::ClosestColor(tColor Color, int MaxDiff)
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{
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int n = 0;
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int d = INT_MAX;
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int A1 = (Color & 0xFF000000) >> 24;
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int R1 = (Color & 0x00FF0000) >> 16;
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int G1 = (Color & 0x0000FF00) >> 8;
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int B1 = (Color & 0x000000FF);
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for (int i = 0; i < numColors; i++) {
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int A2 = (color[i] & 0xFF000000) >> 24;
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int R2 = (color[i] & 0x00FF0000) >> 16;
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int G2 = (color[i] & 0x0000FF00) >> 8;
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int B2 = (color[i] & 0x000000FF);
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int diff = (abs(A1 - A2) << 1) + (abs(R1 - R2) << 1) + (abs(G1 - G2) << 1) + (abs(B1 - B2) << 1);
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if (diff < d) {
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d = diff;
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n = i;
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}
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}
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return d <= MaxDiff ? n : -1;
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}
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// --- cBitmap ---------------------------------------------------------------
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cBitmap::cBitmap(int Width, int Height, int Bpp, int X0, int Y0)
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:cPalette(Bpp)
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{
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bitmap = NULL;
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x0 = X0;
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y0 = Y0;
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SetSize(Width, Height);
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}
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cBitmap::cBitmap(const char *FileName)
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{
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bitmap = NULL;
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x0 = 0;
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y0 = 0;
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LoadXpm(FileName);
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}
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cBitmap::cBitmap(const char *const Xpm[])
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{
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bitmap = NULL;
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x0 = 0;
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y0 = 0;
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SetXpm(Xpm);
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}
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cBitmap::~cBitmap()
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{
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free(bitmap);
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}
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void cBitmap::SetSize(int Width, int Height)
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{
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if (bitmap && Width == width && Height == height)
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return;
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width = Width;
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height = Height;
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free(bitmap);
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bitmap = NULL;
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dirtyX1 = 0;
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dirtyY1 = 0;
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dirtyX2 = width - 1;
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dirtyY2 = height - 1;
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if (width > 0 && height > 0) {
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bitmap = MALLOC(tIndex, width * height);
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if (bitmap)
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memset(bitmap, 0x00, width * height);
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else
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esyslog("ERROR: can't allocate bitmap!");
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}
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else
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esyslog("ERROR: invalid bitmap parameters (%d, %d)!", width, height);
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}
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bool cBitmap::Contains(int x, int y) const
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{
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x -= x0;
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y -= y0;
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return 0 <= x && x < width && 0 <= y && y < height;
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}
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bool cBitmap::Covers(int x1, int y1, int x2, int y2) const
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{
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x1 -= x0;
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y1 -= y0;
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x2 -= x0;
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y2 -= y0;
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return x1 <= 0 && y1 <= 0 && x2 >= width - 1 && y2 >= height - 1;
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}
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bool cBitmap::Intersects(int x1, int y1, int x2, int y2) const
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{
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x1 -= x0;
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y1 -= y0;
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x2 -= x0;
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y2 -= y0;
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return !(x2 < 0 || x1 >= width || y2 < 0 || y1 >= height);
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}
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bool cBitmap::Dirty(int &x1, int &y1, int &x2, int &y2)
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{
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if (dirtyX2 >= 0) {
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x1 = dirtyX1;
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y1 = dirtyY1;
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x2 = dirtyX2;
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y2 = dirtyY2;
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return true;
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}
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return false;
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}
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void cBitmap::Clean(void)
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{
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dirtyX1 = width;
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dirtyY1 = height;
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dirtyX2 = -1;
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dirtyY2 = -1;
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}
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bool cBitmap::LoadXpm(const char *FileName)
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{
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bool Result = false;
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FILE *f = fopen(FileName, "r");
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if (f) {
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char **Xpm = NULL;
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bool isXpm = false;
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int lines = 0;
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int index = 0;
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char *s;
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cReadLine ReadLine;
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while ((s = ReadLine.Read(f)) != NULL) {
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s = skipspace(s);
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if (!isXpm) {
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if (strcmp(s, "/* XPM */") != 0) {
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esyslog("ERROR: invalid header in XPM file '%s'", FileName);
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break;
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}
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isXpm = true;
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}
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else if (*s++ == '"') {
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if (!lines) {
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int w, h, n, c;
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if (4 != sscanf(s, "%d %d %d %d", &w, &h, &n, &c)) {
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esyslog("ERROR: faulty 'values' line in XPM file '%s'", FileName);
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isXpm = false;
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break;
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}
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lines = h + n + 1;
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Xpm = MALLOC(char *, lines);
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memset(Xpm, 0, lines * sizeof(char*));
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}
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char *q = strchr(s, '"');
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if (!q) {
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esyslog("ERROR: missing quotes in XPM file '%s'", FileName);
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isXpm = false;
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break;
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}
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*q = 0;
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if (index < lines)
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Xpm[index++] = strdup(s);
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else {
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esyslog("ERROR: too many lines in XPM file '%s'", FileName);
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isXpm = false;
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break;
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}
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}
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}
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if (isXpm) {
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if (index == lines)
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Result = SetXpm(Xpm);
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else
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esyslog("ERROR: too few lines in XPM file '%s'", FileName);
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}
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if (Xpm) {
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for (int i = 0; i < index; i++)
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free(Xpm[i]);
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}
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free(Xpm);
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fclose(f);
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}
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else
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esyslog("ERROR: can't open XPM file '%s'", FileName);
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return Result;
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}
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bool cBitmap::SetXpm(const char *const Xpm[], bool IgnoreNone)
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{
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if (!Xpm)
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return false;
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const char *const *p = Xpm;
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int w, h, n, c;
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if (4 != sscanf(*p, "%d %d %d %d", &w, &h, &n, &c)) {
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esyslog("ERROR: faulty 'values' line in XPM: '%s'", *p);
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return false;
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}
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if (n > MAXNUMCOLORS) {
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esyslog("ERROR: too many colors in XPM: %d", n);
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return false;
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}
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int b = 0;
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while (1 << (1 << b) < (IgnoreNone ? n - 1 : n))
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b++;
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SetBpp(1 << b);
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SetSize(w, h);
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int NoneColorIndex = MAXNUMCOLORS;
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for (int i = 0; i < n; i++) {
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const char *s = *++p;
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if (int(strlen(s)) < c) {
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esyslog("ERROR: faulty 'colors' line in XPM: '%s'", s);
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return false;
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}
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s = skipspace(s + c);
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if (*s != 'c') {
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esyslog("ERROR: unknown color key in XPM: '%c'", *s);
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return false;
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}
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s = skipspace(s + 1);
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if (strcasecmp(s, "none") == 0) {
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s = "#00000000";
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NoneColorIndex = i;
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if (IgnoreNone)
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continue;
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}
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if (*s != '#') {
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esyslog("ERROR: unknown color code in XPM: '%c'", *s);
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return false;
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}
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tColor color = strtoul(++s, NULL, 16) | 0xFF000000;
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SetColor((IgnoreNone && i > NoneColorIndex) ? i - 1 : i, color);
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}
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for (int y = 0; y < h; y++) {
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const char *s = *++p;
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if (int(strlen(s)) != w * c) {
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esyslog("ERROR: faulty pixel line in XPM: %d '%s'", y, s);
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return false;
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}
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for (int x = 0; x < w; x++) {
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for (int i = 0; i <= n; i++) {
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if (i == n) {
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esyslog("ERROR: undefined pixel color in XPM: %d %d '%s'", x, y, s);
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return false;
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}
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if (strncmp(Xpm[i + 1], s, c) == 0) {
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if (i == NoneColorIndex)
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NoneColorIndex = MAXNUMCOLORS;
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SetIndex(x, y, (IgnoreNone && i > NoneColorIndex) ? i - 1 : i);
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break;
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}
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}
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s += c;
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}
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}
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if (NoneColorIndex < MAXNUMCOLORS && !IgnoreNone)
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return SetXpm(Xpm, true);
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return true;
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}
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void cBitmap::SetIndex(int x, int y, tIndex Index)
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{
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if (bitmap) {
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if (0 <= x && x < width && 0 <= y && y < height) {
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if (bitmap[width * y + x] != Index) {
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bitmap[width * y + x] = Index;
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if (dirtyX1 > x) dirtyX1 = x;
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if (dirtyY1 > y) dirtyY1 = y;
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if (dirtyX2 < x) dirtyX2 = x;
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if (dirtyY2 < y) dirtyY2 = y;
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}
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}
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}
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}
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void cBitmap::DrawPixel(int x, int y, tColor Color)
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{
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x -= x0;
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y -= y0;
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if (0 <= x && x < width && 0 <= y && y < height)
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SetIndex(x, y, Index(Color));
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}
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void cBitmap::DrawBitmap(int x, int y, const cBitmap &Bitmap, tColor ColorFg, tColor ColorBg, bool ReplacePalette, bool Overlay)
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{
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if (bitmap && Bitmap.bitmap && Intersects(x, y, x + Bitmap.Width() - 1, y + Bitmap.Height() - 1)) {
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if (Covers(x, y, x + Bitmap.Width() - 1, y + Bitmap.Height() - 1))
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Reset();
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x -= x0;
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y -= y0;
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if (ReplacePalette && Covers(x + x0, y + y0, x + x0 + Bitmap.Width() - 1, y + y0 + Bitmap.Height() - 1)) {
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Replace(Bitmap);
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for (int ix = 0; ix < Bitmap.width; ix++) {
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for (int iy = 0; iy < Bitmap.height; iy++) {
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if (!Overlay || Bitmap.bitmap[Bitmap.width * iy + ix] != 0)
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SetIndex(x + ix, y + iy, Bitmap.bitmap[Bitmap.width * iy + ix]);
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}
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}
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}
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else {
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tIndexes Indexes;
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Take(Bitmap, &Indexes, ColorFg, ColorBg);
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for (int ix = 0; ix < Bitmap.width; ix++) {
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for (int iy = 0; iy < Bitmap.height; iy++) {
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if (!Overlay || Bitmap.bitmap[Bitmap.width * iy + ix] != 0)
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SetIndex(x + ix, y + iy, Indexes[int(Bitmap.bitmap[Bitmap.width * iy + ix])]);
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}
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}
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}
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}
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}
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void cBitmap::DrawText(int x, int y, const char *s, tColor ColorFg, tColor ColorBg, const cFont *Font, int Width, int Height, int Alignment)
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{
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if (bitmap) {
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int w = Font->Width(s);
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int h = Font->Height();
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int limit = 0;
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if (Width || Height) {
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int cw = Width ? Width : w;
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int ch = Height ? Height : h;
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if (!Intersects(x, y, x + cw - 1, y + ch - 1))
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return;
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if (ColorBg != clrTransparent)
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DrawRectangle(x, y, x + cw - 1, y + ch - 1, ColorBg);
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limit = x + cw - x0;
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if (Width) {
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if ((Alignment & taLeft) != 0)
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;
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else if ((Alignment & taRight) != 0) {
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if (w < Width)
|
|
x += Width - w;
|
|
}
|
|
else { // taCentered
|
|
if (w < Width)
|
|
x += (Width - w) / 2;
|
|
}
|
|
}
|
|
if (Height) {
|
|
if ((Alignment & taTop) != 0)
|
|
;
|
|
else if ((Alignment & taBottom) != 0) {
|
|
if (h < Height)
|
|
y += Height - h;
|
|
}
|
|
else { // taCentered
|
|
if (h < Height)
|
|
y += (Height - h) / 2;
|
|
}
|
|
}
|
|
}
|
|
else if (!Intersects(x, y, x + w - 1, y + h - 1))
|
|
return;
|
|
x -= x0;
|
|
y -= y0;
|
|
Font->DrawText(this, x, y, s, ColorFg, ColorBg, limit);
|
|
}
|
|
}
|
|
|
|
void cBitmap::DrawRectangle(int x1, int y1, int x2, int y2, tColor Color)
|
|
{
|
|
if (bitmap && Intersects(x1, y1, x2, y2)) {
|
|
if (Covers(x1, y1, x2, y2))
|
|
Reset();
|
|
x1 -= x0;
|
|
y1 -= y0;
|
|
x2 -= x0;
|
|
y2 -= y0;
|
|
x1 = max(x1, 0);
|
|
y1 = max(y1, 0);
|
|
x2 = min(x2, width - 1);
|
|
y2 = min(y2, height - 1);
|
|
tIndex c = Index(Color);
|
|
for (int y = y1; y <= y2; y++)
|
|
for (int x = x1; x <= x2; x++)
|
|
SetIndex(x, y, c);
|
|
}
|
|
}
|
|
|
|
void cBitmap::DrawEllipse(int x1, int y1, int x2, int y2, tColor Color, int Quadrants)
|
|
{
|
|
if (!Intersects(x1, y1, x2, y2))
|
|
return;
|
|
// Algorithm based on http://homepage.smc.edu/kennedy_john/BELIPSE.PDF
|
|
int rx = x2 - x1;
|
|
int ry = y2 - y1;
|
|
int cx = (x1 + x2) / 2;
|
|
int cy = (y1 + y2) / 2;
|
|
switch (abs(Quadrants)) {
|
|
case 0: rx /= 2; ry /= 2; break;
|
|
case 1: cx = x1; cy = y2; break;
|
|
case 2: cx = x2; cy = y2; break;
|
|
case 3: cx = x2; cy = y1; break;
|
|
case 4: cx = x1; cy = y1; break;
|
|
case 5: cx = x1; ry /= 2; break;
|
|
case 6: cy = y2; rx /= 2; break;
|
|
case 7: cx = x2; ry /= 2; break;
|
|
case 8: cy = y1; rx /= 2; break;
|
|
}
|
|
int TwoASquare = 2 * rx * rx;
|
|
int TwoBSquare = 2 * ry * ry;
|
|
int x = rx;
|
|
int y = 0;
|
|
int XChange = ry * ry * (1 - 2 * rx);
|
|
int YChange = rx * rx;
|
|
int EllipseError = 0;
|
|
int StoppingX = TwoBSquare * rx;
|
|
int StoppingY = 0;
|
|
while (StoppingX >= StoppingY) {
|
|
switch (Quadrants) {
|
|
case 5: DrawRectangle(cx, cy + y, cx + x, cy + y, Color); // no break
|
|
case 1: DrawRectangle(cx, cy - y, cx + x, cy - y, Color); break;
|
|
case 7: DrawRectangle(cx - x, cy + y, cx, cy + y, Color); // no break
|
|
case 2: DrawRectangle(cx - x, cy - y, cx, cy - y, Color); break;
|
|
case 3: DrawRectangle(cx - x, cy + y, cx, cy + y, Color); break;
|
|
case 4: DrawRectangle(cx, cy + y, cx + x, cy + y, Color); break;
|
|
case 0:
|
|
case 6: DrawRectangle(cx - x, cy - y, cx + x, cy - y, Color); if (Quadrants == 6) break;
|
|
case 8: DrawRectangle(cx - x, cy + y, cx + x, cy + y, Color); break;
|
|
case -1: DrawRectangle(cx + x, cy - y, x2, cy - y, Color); break;
|
|
case -2: DrawRectangle(x1, cy - y, cx - x, cy - y, Color); break;
|
|
case -3: DrawRectangle(x1, cy + y, cx - x, cy + y, Color); break;
|
|
case -4: DrawRectangle(cx + x, cy + y, x2, cy + y, Color); break;
|
|
}
|
|
y++;
|
|
StoppingY += TwoASquare;
|
|
EllipseError += YChange;
|
|
YChange += TwoASquare;
|
|
if (2 * EllipseError + XChange > 0) {
|
|
x--;
|
|
StoppingX -= TwoBSquare;
|
|
EllipseError += XChange;
|
|
XChange += TwoBSquare;
|
|
}
|
|
}
|
|
x = 0;
|
|
y = ry;
|
|
XChange = ry * ry;
|
|
YChange = rx * rx * (1 - 2 * ry);
|
|
EllipseError = 0;
|
|
StoppingX = 0;
|
|
StoppingY = TwoASquare * ry;
|
|
while (StoppingX <= StoppingY) {
|
|
switch (Quadrants) {
|
|
case 5: DrawRectangle(cx, cy + y, cx + x, cy + y, Color); // no break
|
|
case 1: DrawRectangle(cx, cy - y, cx + x, cy - y, Color); break;
|
|
case 7: DrawRectangle(cx - x, cy + y, cx, cy + y, Color); // no break
|
|
case 2: DrawRectangle(cx - x, cy - y, cx, cy - y, Color); break;
|
|
case 3: DrawRectangle(cx - x, cy + y, cx, cy + y, Color); break;
|
|
case 4: DrawRectangle(cx, cy + y, cx + x, cy + y, Color); break;
|
|
case 0:
|
|
case 6: DrawRectangle(cx - x, cy - y, cx + x, cy - y, Color); if (Quadrants == 6) break;
|
|
case 8: DrawRectangle(cx - x, cy + y, cx + x, cy + y, Color); break;
|
|
case -1: DrawRectangle(cx + x, cy - y, x2, cy - y, Color); break;
|
|
case -2: DrawRectangle(x1, cy - y, cx - x, cy - y, Color); break;
|
|
case -3: DrawRectangle(x1, cy + y, cx - x, cy + y, Color); break;
|
|
case -4: DrawRectangle(cx + x, cy + y, x2, cy + y, Color); break;
|
|
}
|
|
x++;
|
|
StoppingX += TwoBSquare;
|
|
EllipseError += XChange;
|
|
XChange += TwoBSquare;
|
|
if (2 * EllipseError + YChange > 0) {
|
|
y--;
|
|
StoppingY -= TwoASquare;
|
|
EllipseError += YChange;
|
|
YChange += TwoASquare;
|
|
}
|
|
}
|
|
}
|
|
|
|
void cBitmap::DrawSlope(int x1, int y1, int x2, int y2, tColor Color, int Type)
|
|
{
|
|
// TODO This is just a quick and dirty implementation of a slope drawing
|
|
// machanism. If somebody can come up with a better solution, let's have it!
|
|
if (!Intersects(x1, y1, x2, y2))
|
|
return;
|
|
bool upper = Type & 0x01;
|
|
bool falling = Type & 0x02;
|
|
bool vertical = Type & 0x04;
|
|
if (vertical) {
|
|
for (int y = y1; y <= y2; y++) {
|
|
double c = cos((y - y1) * M_PI / (y2 - y1 + 1));
|
|
if (falling)
|
|
c = -c;
|
|
int x = int((x2 - x1 + 1) * c / 2);
|
|
if (upper && !falling || !upper && falling)
|
|
DrawRectangle(x1, y, (x1 + x2) / 2 + x, y, Color);
|
|
else
|
|
DrawRectangle((x1 + x2) / 2 + x, y, x2, y, Color);
|
|
}
|
|
}
|
|
else {
|
|
for (int x = x1; x <= x2; x++) {
|
|
double c = cos((x - x1) * M_PI / (x2 - x1 + 1));
|
|
if (falling)
|
|
c = -c;
|
|
int y = int((y2 - y1 + 1) * c / 2);
|
|
if (upper)
|
|
DrawRectangle(x, y1, x, (y1 + y2) / 2 + y, Color);
|
|
else
|
|
DrawRectangle(x, (y1 + y2) / 2 + y, x, y2, Color);
|
|
}
|
|
}
|
|
}
|
|
|
|
const tIndex *cBitmap::Data(int x, int y)
|
|
{
|
|
return &bitmap[y * width + x];
|
|
}
|
|
|
|
// --- cOsd ------------------------------------------------------------------
|
|
|
|
int cOsd::osdLeft = 0;
|
|
int cOsd::osdTop = 0;
|
|
int cOsd::osdWidth = 0;
|
|
int cOsd::osdHeight = 0;
|
|
int cOsd::isOpen = 0;
|
|
|
|
cOsd::cOsd(int Left, int Top)
|
|
{
|
|
if (isOpen)
|
|
esyslog("ERROR: OSD opened without closing previous OSD!");
|
|
savedRegion = NULL;
|
|
numBitmaps = 0;
|
|
left = Left;
|
|
top = Top;
|
|
width = height = 0;
|
|
isOpen++;
|
|
}
|
|
|
|
cOsd::~cOsd()
|
|
{
|
|
for (int i = 0; i < numBitmaps; i++)
|
|
delete bitmaps[i];
|
|
delete savedRegion;
|
|
isOpen--;
|
|
}
|
|
|
|
void cOsd::SetOsdPosition(int Left, int Top, int Width, int Height)
|
|
{
|
|
osdLeft = Left;
|
|
osdTop = Top;
|
|
osdWidth = min(max(Width, MINOSDWIDTH), MAXOSDWIDTH);
|
|
osdHeight = min(max(Height, MINOSDHEIGHT), MAXOSDHEIGHT);
|
|
}
|
|
|
|
void cOsd::SetAntiAliasGranularity(uint FixedColors, uint BlendColors)
|
|
{
|
|
for (int i = 0; i < numBitmaps; i++)
|
|
bitmaps[i]->SetAntiAliasGranularity(FixedColors, BlendColors);
|
|
}
|
|
|
|
cBitmap *cOsd::GetBitmap(int Area)
|
|
{
|
|
return Area < numBitmaps ? bitmaps[Area] : NULL;
|
|
}
|
|
|
|
eOsdError cOsd::CanHandleAreas(const tArea *Areas, int NumAreas)
|
|
{
|
|
if (NumAreas > MAXOSDAREAS)
|
|
return oeTooManyAreas;
|
|
eOsdError Result = oeOk;
|
|
for (int i = 0; i < NumAreas; i++) {
|
|
if (Areas[i].x1 > Areas[i].x2 || Areas[i].y1 > Areas[i].y2 || Areas[i].x1 < 0 || Areas[i].y1 < 0)
|
|
return oeWrongAlignment;
|
|
for (int j = i + 1; j < NumAreas; j++) {
|
|
if (Areas[i].Intersects(Areas[j])) {
|
|
Result = oeAreasOverlap;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return Result;
|
|
}
|
|
|
|
eOsdError cOsd::SetAreas(const tArea *Areas, int NumAreas)
|
|
{
|
|
eOsdError Result = oeUnknown;
|
|
if (numBitmaps == 0) {
|
|
Result = CanHandleAreas(Areas, NumAreas);
|
|
if (Result == oeOk) {
|
|
width = height = 0;
|
|
for (int i = 0; i < NumAreas; i++) {
|
|
bitmaps[numBitmaps++] = new cBitmap(Areas[i].Width(), Areas[i].Height(), Areas[i].bpp, Areas[i].x1, Areas[i].y1);
|
|
width = max(width, Areas[i].x2 + 1);
|
|
height = max(height, Areas[i].y2 + 1);
|
|
}
|
|
}
|
|
}
|
|
if (Result != oeOk)
|
|
esyslog("ERROR: cOsd::SetAreas returned %d", Result);
|
|
return Result;
|
|
}
|
|
|
|
void cOsd::SaveRegion(int x1, int y1, int x2, int y2)
|
|
{
|
|
delete savedRegion;
|
|
savedRegion = new cBitmap(x2 - x1 + 1, y2 - y1 + 1, 8, x1, y1);
|
|
for (int i = 0; i < numBitmaps; i++)
|
|
savedRegion->DrawBitmap(bitmaps[i]->X0(), bitmaps[i]->Y0(), *bitmaps[i]);
|
|
}
|
|
|
|
void cOsd::RestoreRegion(void)
|
|
{
|
|
if (savedRegion) {
|
|
DrawBitmap(savedRegion->X0(), savedRegion->Y0(), *savedRegion);
|
|
delete savedRegion;
|
|
savedRegion = NULL;
|
|
}
|
|
}
|
|
|
|
eOsdError cOsd::SetPalette(const cPalette &Palette, int Area)
|
|
{
|
|
if (Area < numBitmaps)
|
|
bitmaps[Area]->Take(Palette);
|
|
return oeUnknown;
|
|
}
|
|
|
|
void cOsd::DrawPixel(int x, int y, tColor Color)
|
|
{
|
|
for (int i = 0; i < numBitmaps; i++)
|
|
bitmaps[i]->DrawPixel(x, y, Color);
|
|
}
|
|
|
|
void cOsd::DrawBitmap(int x, int y, const cBitmap &Bitmap, tColor ColorFg, tColor ColorBg, bool ReplacePalette, bool Overlay)
|
|
{
|
|
for (int i = 0; i < numBitmaps; i++)
|
|
bitmaps[i]->DrawBitmap(x, y, Bitmap, ColorFg, ColorBg, ReplacePalette, Overlay);
|
|
}
|
|
|
|
void cOsd::DrawText(int x, int y, const char *s, tColor ColorFg, tColor ColorBg, const cFont *Font, int Width, int Height, int Alignment)
|
|
{
|
|
for (int i = 0; i < numBitmaps; i++)
|
|
bitmaps[i]->DrawText(x, y, s, ColorFg, ColorBg, Font, Width, Height, Alignment);
|
|
}
|
|
|
|
void cOsd::DrawRectangle(int x1, int y1, int x2, int y2, tColor Color)
|
|
{
|
|
for (int i = 0; i < numBitmaps; i++)
|
|
bitmaps[i]->DrawRectangle(x1, y1, x2, y2, Color);
|
|
}
|
|
|
|
void cOsd::DrawEllipse(int x1, int y1, int x2, int y2, tColor Color, int Quadrants)
|
|
{
|
|
for (int i = 0; i < numBitmaps; i++)
|
|
bitmaps[i]->DrawEllipse(x1, y1, x2, y2, Color, Quadrants);
|
|
}
|
|
|
|
void cOsd::DrawSlope(int x1, int y1, int x2, int y2, tColor Color, int Type)
|
|
{
|
|
for (int i = 0; i < numBitmaps; i++)
|
|
bitmaps[i]->DrawSlope(x1, y1, x2, y2, Color, Type);
|
|
}
|
|
|
|
void cOsd::Flush(void)
|
|
{
|
|
}
|
|
|
|
// --- cOsdProvider ----------------------------------------------------------
|
|
|
|
cOsdProvider *cOsdProvider::osdProvider = NULL;
|
|
|
|
cOsdProvider::cOsdProvider(void)
|
|
{
|
|
delete osdProvider;
|
|
osdProvider = this;
|
|
}
|
|
|
|
cOsdProvider::~cOsdProvider()
|
|
{
|
|
osdProvider = NULL;
|
|
}
|
|
|
|
cOsd *cOsdProvider::NewOsd(int Left, int Top)
|
|
{
|
|
if (cOsd::IsOpen())
|
|
esyslog("ERROR: attempt to open OSD while it is already open - using dummy OSD!");
|
|
else if (osdProvider)
|
|
return osdProvider->CreateOsd(Left, Top);
|
|
else
|
|
esyslog("ERROR: no OSD provider available - using dummy OSD!");
|
|
return new cOsd(Left, Top); // create a dummy cOsd, so that access won't result in a segfault
|
|
}
|
|
|
|
void cOsdProvider::Shutdown(void)
|
|
{
|
|
delete osdProvider;
|
|
osdProvider = NULL;
|
|
}
|
|
|
|
// --- cTextScroller ---------------------------------------------------------
|
|
|
|
cTextScroller::cTextScroller(void)
|
|
{
|
|
osd = NULL;
|
|
left = top = width = height = 0;
|
|
font = NULL;
|
|
colorFg = 0;
|
|
colorBg = 0;
|
|
offset = 0;
|
|
shown = 0;
|
|
}
|
|
|
|
cTextScroller::cTextScroller(cOsd *Osd, int Left, int Top, int Width, int Height, const char *Text, const cFont *Font, tColor ColorFg, tColor ColorBg)
|
|
{
|
|
Set(Osd, Left, Top, Width, Height, Text, Font, ColorFg, ColorBg);
|
|
}
|
|
|
|
void cTextScroller::Set(cOsd *Osd, int Left, int Top, int Width, int Height, const char *Text, const cFont *Font, tColor ColorFg, tColor ColorBg)
|
|
{
|
|
osd = Osd;
|
|
left = Left;
|
|
top = Top;
|
|
width = Width;
|
|
height = Height;
|
|
font = Font;
|
|
colorFg = ColorFg;
|
|
colorBg = ColorBg;
|
|
offset = 0;
|
|
textWrapper.Set(Text, Font, Width);
|
|
shown = min(Total(), height / font->Height());
|
|
height = shown * font->Height(); // sets height to the actually used height, which may be less than Height
|
|
DrawText();
|
|
}
|
|
|
|
void cTextScroller::Reset(void)
|
|
{
|
|
osd = NULL; // just makes sure it won't draw anything
|
|
}
|
|
|
|
void cTextScroller::DrawText(void)
|
|
{
|
|
if (osd) {
|
|
for (int i = 0; i < shown; i++)
|
|
osd->DrawText(left, top + i * font->Height(), textWrapper.GetLine(offset + i), colorFg, colorBg, font, width);
|
|
}
|
|
}
|
|
|
|
void cTextScroller::Scroll(bool Up, bool Page)
|
|
{
|
|
if (Up) {
|
|
if (CanScrollUp()) {
|
|
offset -= Page ? shown : 1;
|
|
if (offset < 0)
|
|
offset = 0;
|
|
DrawText();
|
|
}
|
|
}
|
|
else {
|
|
if (CanScrollDown()) {
|
|
offset += Page ? shown : 1;
|
|
if (offset + shown > Total())
|
|
offset = Total() - shown;
|
|
DrawText();
|
|
}
|
|
}
|
|
}
|