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Add use of fl_capture_window() by test/device

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Also, rename fl_capture_window_part() to fl_capture_window().
This commit is contained in:
ManoloFLTK 2021-11-16 15:03:36 +01:00
parent af0bb7e6c9
commit 397226b75d
4 changed files with 35 additions and 16 deletions
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2
FL/fl_draw.H
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@ -1035,7 +1035,7 @@ inline char fl_can_do_alpha_blending() {
}
FL_EXPORT uchar *fl_read_image(uchar *p, int X, int Y, int W, int H, int alpha = 0);
FL_EXPORT Fl_RGB_Image *fl_capture_window_part(Fl_Window *win, int x, int y, int w, int h);
FL_EXPORT Fl_RGB_Image *fl_capture_window(Fl_Window *win, int x, int y, int w, int h);
// pixmaps:
/**

2
src/Fl_Screen_Driver.H
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@ -149,7 +149,7 @@ public:
virtual void release_keyboard() {}
/* Member function read_win_rectangle() supports public functions
fl_read_image() and fl_capture_window_part() which capture pixel data from
fl_read_image() and fl_capture_window() which capture pixel data from
a window (or also from an offscreen buffer with fl_read_image).
If 'may_capture_subwins' is true, an implementation may or may not capture

4
src/fl_read_image.cxx
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@ -35,7 +35,7 @@
and the value that is placed in the alpha channel. If 0, no alpha
channel is generated.
\see fl_capture_window_part()
\see fl_capture_window()
*/
uchar *fl_read_image(uchar *p, int X, int Y, int w, int h, int alpha) {
uchar *image_data = NULL;
@ -96,7 +96,7 @@ uchar *fl_read_image(uchar *p, int X, int Y, int w, int h, int alpha) {
The image depth may differ between platforms.
\version 1.4
*/
Fl_RGB_Image *fl_capture_window_part(Fl_Window *win, int x, int y, int w, int h)
Fl_RGB_Image *fl_capture_window(Fl_Window *win, int x, int y, int w, int h)
{
Fl_RGB_Image *rgb = NULL;
if (win->shown()) {

43
test/device.cxx
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@ -16,7 +16,7 @@
#include <math.h>
#include <FL/Fl.H>
#include <FL/Fl_Overlay_Window.H>
#include <FL/Fl_Window.H>
#include <FL/Fl_Light_Button.H>
#include <FL/Fl_Radio_Round_Button.H>
#include <FL/fl_draw.H>
@ -495,7 +495,7 @@ void copy(Fl_Widget *, void *data) {
delete rgb_surf;
Fl_Surface_Device::pop_current();
if (img) {
Fl_Window* g2 = new Fl_Window(img->w()+10, img->h()+10);
Fl_Window* g2 = new Fl_Window(img->w()+10, img->h()+10, "Fl_Image_Surface");
g2->color(FL_YELLOW);
Fl_Box *b = new Fl_Box(FL_NO_BOX,5,5,img->w(), img->h(),0);
b->image(img);
@ -602,6 +602,22 @@ void copy(Fl_Widget *, void *data) {
}
}
}
if (strcmp(operation, "fl_capture_window") == 0) {
Fl_Window *win = target->as_window() ? target->as_window() : target->window();
int X = target->as_window() ? 0 : target->x();
int Y = target->as_window() ? 0 : target->y();
Fl_RGB_Image *img = fl_capture_window(win, X, Y, target->w(), target->h());
if (img) {
Fl_Window* g2 = new Fl_Window(img->w()+10, img->h()+10, "fl_capture_window()");
g2->color(FL_YELLOW);
Fl_Box *b = new Fl_Box(FL_NO_BOX,5,5,img->w(), img->h(),0);
b->image(img);
g2->end();
g2->callback(close_tmp_win, img);
g2->show();
}
}
}
class My_Button:public Fl_Button {
@ -708,20 +724,23 @@ int main(int argc, char ** argv) {
Fl_Group *g1 = new Fl_Group(w3->x(),w3->y(),w3->w(),w3->h());
rb = new Fl_Radio_Round_Button(5,5,150,12, "Fl_Image_Surface");
rb->set(); rb->callback(operation_cb, NULL); operation = rb->label(); rb->labelsize(12);
rb = new Fl_Radio_Round_Button(5,18,150,12, "Fl_Copy_Surface"); rb->callback(operation_cb, NULL); rb->labelsize(12);
rb = new Fl_Radio_Round_Button(5,31,150,12, "Fl_Printer"); rb->callback(operation_cb, NULL); rb->labelsize(12);
rb = new Fl_Radio_Round_Button(5,44,150,12, "Fl_PostScript_File_Device"); rb->callback(operation_cb, NULL); rb->labelsize(12);
rb = new Fl_Radio_Round_Button(5,57,150,12, "Fl_EPS_File_Surface"); rb->callback(operation_cb, NULL); rb->labelsize(12);
rb = new Fl_Radio_Round_Button(170,57,150,12, "Fl_SVG_File_Surface"); rb->callback(operation_cb, NULL); rb->labelsize(12);
rb = new Fl_Radio_Round_Button(170,5,150,12, "Fl_Copy_Surface"); rb->callback(operation_cb, NULL); rb->labelsize(12);
rb = new Fl_Radio_Round_Button(5,18,150,12, "Fl_Printer"); rb->callback(operation_cb, NULL); rb->labelsize(12);
rb = new Fl_Radio_Round_Button(170,18,150,12, "Fl_PostScript_File_Device"); rb->callback(operation_cb, NULL); rb->labelsize(12);
rb = new Fl_Radio_Round_Button(5,31,150,12, "Fl_EPS_File_Surface"); rb->callback(operation_cb, NULL); rb->labelsize(12);
rb = new Fl_Radio_Round_Button(170,31,150,12, "Fl_SVG_File_Surface"); rb->callback(operation_cb, NULL); rb->labelsize(12);
rb = new Fl_Radio_Round_Button(5,44,150,12, "fl_capture_window"); rb->callback(operation_cb, NULL); rb->labelsize(12);
g1->end();
Fl_Group *g2 = new Fl_Group(w3->x(),w3->y(),w3->w(),w3->h());
rb = new Fl_Radio_Round_Button(170,5,150,12, "Decorated Window");
rb->set(); rb->callback(target_cb, w2); target = w2;
rb = new Fl_Radio_Round_Button(170,22,150,12, "Sub-window"); rb->callback(target_cb, w3);
rb = new Fl_Radio_Round_Button(170,39,150,12, "Group"); rb->callback(target_cb, group);
rb = new Fl_Radio_Round_Button(5,57,150,12, "Decorated Window");
rb->labelsize(12); rb->set(); rb->callback(target_cb, w2); target = w2;
rb = new Fl_Radio_Round_Button(170,57,150,12, "Sub-window");
rb->labelsize(12); rb->callback(target_cb, w3);
rb = new Fl_Radio_Round_Button(335,57,150,12, "Group");
rb->labelsize(12);rb->callback(target_cb, group);
g2->end();
Fl_Button *b4 = new Fl_Button(330, (w3->h() - 25)/2, 150, 25, "GO");
Fl_Button *b4 = new Fl_Button(380, (w3->h() - 25)/2, 100, 25, "GO");
b4->callback((Fl_Callback*)copy,NULL);
w3->end();