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#include "../config.h"
#include "helpers.h"
#include "imageloader.h"
//#include <math.h>
#include <string>
#include <dirent.h>
#include <iostream>
cImageLoader::cImageLoader() {
importer = NULL;
}
cImageLoader::~cImageLoader() {
delete(importer);
}
cImage *cImageLoader::CreateImage(int width, int height, bool preserveAspect) {
if (!importer) return NULL;
int w, h;
importer->GetImageSize(w, h);
if (width == 0)
width = w;
if (height == 0)
height = h;
cairo_surface_t *surface;
surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, width, height);
cairo_t *cr;
cr = cairo_create(surface);
double sx = width / (double)w;
double sy = height / (double)h;
if (preserveAspect) {
if (sx < sy)
sy = sx;
if (sy < sx)
sx = sy;
}
cairo_scale(cr, sx, sy);
importer->DrawToCairo(cr);
cairo_status_t status = cairo_status(cr);
if (status)
dsyslog("skindesigner: Cairo CreateImage Error %s", cairo_status_to_string(status));
unsigned char *data = cairo_image_surface_get_data(surface);
cImage *image = new cImage(cSize(width, height), (tColor*)data);
cairo_destroy(cr);
cairo_surface_destroy(surface);
return image;
}
bool cImageLoader::LoadImage(const char *fullpath) {
if ((fullpath == NULL) || (strlen(fullpath) < 5))
return false;
if (config.debugImageLoading)
dsyslog("skindesigner: trying to load: %s", fullpath);
delete(importer);
importer = NULL;
if (endswith(fullpath, ".png"))
importer = new cImageImporterPNG;
else if (endswith(fullpath, ".svg"))
importer = new cImageImporterSVG;
else
return false;
return importer->LoadImage(fullpath);
}
// Just a different way to call LoadImage. Calls the above one.
bool cImageLoader::LoadImage(std::string Path, std::string FileName, std::string Extension) {
std::stringstream sstrImgFile;
sstrImgFile << Path << FileName << "." << Extension;
std::string imgFile = sstrImgFile.str();
return LoadImage(imgFile.c_str());
}
void cImageLoader::DeterminateChannelLogoSize(int &width, int &height) {
cString logoPath;
cString logoPathSkin = cString::sprintf("%s%s/themes/%s/logos/", *config.skinPath, Setup.OSDSkin, Setup.OSDTheme);
if (FolderExists(*logoPathSkin)) {
logoPath = logoPathSkin;
} else {
logoPath = config.logoPath;
}
cString logoExt = config.logoExtension;
DIR *folder = NULL;
struct dirent *file;
folder = opendir(logoPath);
if (!folder) {
return;
}
while (file = readdir(folder)) {
if (endswith(file->d_name, *logoExt)) {
std::stringstream filePath;
filePath << *logoPath << file->d_name;
if (LoadImage(filePath.str().c_str())) {
int logoWidth = 0;
int logoHeight = 0;
importer->GetImageSize(logoWidth, logoHeight);
if (logoWidth > 0 && logoHeight > 0) {
width = logoWidth;
height = logoHeight;
delete(importer);
importer = NULL;
return;
}
}
}
}
}
//
// Image importer for PNG
//
cImageImporterPNG::cImageImporterPNG() {
surface = NULL;
}
cImageImporterPNG::~cImageImporterPNG() {
if (surface)
cairo_surface_destroy(surface);
}
bool cImageImporterPNG::LoadImage(const char *path) {
if (surface)
cairo_surface_destroy(surface);
surface = cairo_image_surface_create_from_png(path);
if (cairo_surface_status(surface)) {
if (config.debugImageLoading)
dsyslog("skindesigner: Cairo LoadImage Error: %s", cairo_status_to_string(cairo_surface_status(surface)));
surface = NULL;
return false;
}
return true;
}
void cImageImporterPNG::DrawToCairo(cairo_t *cr) {
if (surface) {
cairo_set_source_surface(cr, surface, 0, 0);
cairo_paint(cr);
}
}
void cImageImporterPNG::GetImageSize(int &width, int &height) {
if (surface) {
width = cairo_image_surface_get_width(surface);
height = cairo_image_surface_get_height(surface);
}
}
//
// Image importer for SVG
//
cImageImporterSVG::cImageImporterSVG() {
handle = NULL;
}
cImageImporterSVG::~cImageImporterSVG() {
if (handle) {
rsvg_handle_close(handle, NULL);
g_object_unref(handle);
}
}
bool cImageImporterSVG::LoadImage(const char *path) {
if (handle) {
rsvg_handle_close(handle, NULL);
g_object_unref(handle);
}
GError *error = NULL;
handle = rsvg_handle_new_from_file(path, &error);
if (!handle) {
if (config.debugImageLoading)
dsyslog("skindesigner: RSVG Error: %s", error->message);
return false;
}
rsvg_handle_set_dpi(handle, 90);
return true;
}
void cImageImporterSVG::DrawToCairo(cairo_t *cr) {
if (handle)
rsvg_handle_render_cairo(handle, cr);
}
void cImageImporterSVG::GetImageSize(int &width, int &height) {
if (handle) {
RsvgDimensionData dim;
rsvg_handle_get_dimensions(handle, &dim);
width = dim.width;
height = dim.height;
}
}
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