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Add fl_write_jpeg function (STR 460) (#1405)
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This commit is contained in:
Matthias Melcher
2026-04-12 23:49:20 +02:00
committed by GitHub
parent 1ad5777c6a
commit 15448c45b0
4 changed files with 232 additions and 2 deletions
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test/clipboard.cxx
+28 -2
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@@ -17,6 +17,7 @@
#include <FL/Fl.H>
#include <FL/Fl_Window.H>
#include <FL/Fl_Box.H>
#include <FL/Fl_JPEG_Image.H>
#include <FL/Fl_PNG_Image.H>
#include <FL/Fl_Shared_Image.H>
#include <FL/Fl_Text_Display.H>
@@ -45,6 +46,7 @@ Fl_Box *image_size; // to view image size
Fl_Text_Display *display; // to view clipboard text
Fl_Flex *flex; // flexible button layout
Fl_Button *save; // save PNG
Fl_Button *save_jpeg; // save JPEG
Fl_Check_Button *wrap; // wrap mode
Fl_RGB_Image *cl_img; // image from clipboard
@@ -96,9 +98,11 @@ public:
void layout() { // re-arrange buttons depending on tab
if (value() == display) { // text
save->hide();
save_jpeg->hide();
wrap->show();
} else { // image
save->show();
save_jpeg->show();
wrap->hide();
}
flex->layout();
@@ -181,7 +185,7 @@ void refresh_cb(Fl_Widget *, void *v) {
}
// "Save PNG" callback
void save_cb(Fl_Widget *wid, void *) {
void save_cb(Fl_Widget *, void *) {
if (cl_img && !cl_img->fail()) {
Fl_Native_File_Chooser fnfc;
fnfc.title("Please select a .png file");
@@ -198,6 +202,24 @@ void save_cb(Fl_Widget *wid, void *) {
}
}
// "Save JPEG" callback
void save_jpeg_cb(Fl_Widget *, void *) {
if (cl_img && !cl_img->fail()) {
Fl_Native_File_Chooser fnfc;
fnfc.title("Please select a .jpg file");
fnfc.type(Fl_Native_File_Chooser::BROWSE_SAVE_FILE);
fnfc.filter("JPEG\t*.jpg\n");
fnfc.options(Fl_Native_File_Chooser::SAVEAS_CONFIRM | Fl_Native_File_Chooser::USE_FILTER_EXT);
if (fnfc.show())
return;
const char *filename = fnfc.filename();
if (filename)
fl_write_jpeg(filename, cl_img);
} else {
fl_message("%s", "No image available");
}
}
// "wrap mode" callback (switch wrapping on/off)
void wrap_cb(Fl_Widget *w, void *d) {
auto display = (Fl_Text_Display *)d;
@@ -246,10 +268,14 @@ int main(int argc, char **argv) {
flex->fixed(refresh, 200);
refresh->callback(refresh_cb, (void *)tabs);
save = new Fl_Button(0, 0, 0, 0 , "Save PNG");
save = new Fl_Button(0, 0, 0, 0, "Save PNG");
flex->fixed(save, 120);
save->callback(save_cb);
save_jpeg = new Fl_Button(0, 0, 0, 0, "Save JPEG");
flex->fixed(save_jpeg, 120);
save_jpeg->callback(save_jpeg_cb);
wrap = new Fl_Check_Button(0, 0, 0, 0 , "wrap mode");
flex->fixed(wrap, 120);
wrap->callback(wrap_cb, display);