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-rw-r--r--test/unittest_images.cxx192
1 files changed, 103 insertions, 89 deletions
diff --git a/test/unittest_images.cxx b/test/unittest_images.cxx
index 3f2a6ef25..cccde78e7 100644
--- a/test/unittest_images.cxx
+++ b/test/unittest_images.cxx
@@ -35,41 +35,41 @@
// Parameters for fine tuning for developers.
// Default values: CB=1, DX=0, IMG=1, LX=0, FLIPH=0
-static int CB = 1; // 1 to show the checker board background for alpha images,
- // 0 otherwise
-static int DX = 0; // additional (undefined (0)) pixels per line, must be >= 0
- // ignored (irrelevant), if LX == 0 (see below)
-static int IMG = 1; // 1 to use Fl_RGB_Image for drawing images with transparency,
- // 0 to use fl_draw_image() instead.
- // Note: as of Feb 2016, only 1 (Fl_RGB_Image) works with
- // alpha channel, 0 (fl_draw_image()) ignores the alpha
- // channel (FLTK 1.3.x).
- // There are plans to support transparency (alpha channel)
- // in fl_draw_image() in FLTK 1.4.0 and/or later.
-static int LX = 0; // 0 for default: ld() = 0, i.e. ld() defaults (internally) to w()*d()
- // +1: ld() = (w() + DX) * d()
- // -1 to flip image vertically: ld() = - ((w() + DX) * d())
-static int FLIPH = 0; // 1 = Flip image horizontally (only if IMG == 0)
- // 0 = Draw image normal, w/o horizontal flipping
+static int cb = 1; // 1 to show the checker board background for alpha images,
+ // 0 otherwise
+static int dx = 0; // additional (undefined (0)) pixels per line, must be >= 0
+ // ignored (irrelevant), if LX == 0 (see below)
+static int img = 1; // 1 to use Fl_RGB_Image for drawing images with transparency,
+ // 0 to use fl_draw_image() instead.
+ // Note: as of Feb 2016, only 1 (Fl_RGB_Image) works with
+ // alpha channel, 0 (fl_draw_image()) ignores the alpha
+ // channel (FLTK 1.3.x).
+ // There are plans to support transparency (alpha channel)
+ // in fl_draw_image() in FLTK 1.4.0 and/or later.
+static int lx = 0; // 0 for default: ld() = 0, i.e. ld() defaults (internally) to w()*d()
+ // +1: ld() = (w() + DX) * d()
+ // -1 to flip image vertically: ld() = - ((w() + DX) * d())
+static int flip_h = 0; // 1 = Flip image horizontally (only if IMG == 0)
+ // 0 = Draw image normal, w/o horizontal flipping
// ----------------------------------------------------------------------
// Test scenario for fl_draw_image() with pos. and neg. d and ld args:
// ----------------------------------------------------------------------
-// (1) set IMG = 0: normal, but w/o transparency: no checker board
-// (2) set LX = -1: images flipped vertically
-// (3) set FLIPH = 1: images flipped vertically and horizontally
-// (4) set LX = 0: images flipped horizontally
-// (5) set FLIPH = 0, IMG = 1: back to default (with transparency)
+// (1) set img = 0: normal, but w/o transparency: no checker board
+// (2) set lx = -1: images flipped vertically
+// (3) set flip_h = 1: images flipped vertically and horizontally
+// (4) set lx = 0: images flipped horizontally
+// (5) set flip_h = 0, IMG = 1: back to default (with transparency)
// ----------------------------------------------------------------------
-class ImageTest : public Fl_Group {
+class Ut_Image_Test : public Fl_Group {
static void build_imgs() {
int x, y;
uchar *dg, *dga, *drgb, *drgba;
- dg = img_gray = img_gray_base = (uchar*)malloc((128+DX)*128*1);
- dga = img_gray_a = img_gray_a_base = (uchar*)malloc((128+DX)*128*2);
- drgb = img_rgb = img_rgb_base = (uchar*)malloc((128+DX)*128*3);
- drgba = img_rgba = img_rgba_base = (uchar*)malloc((128+DX)*128*4);
+ dg = img_gray = img_gray_base = (uchar*)malloc((128+dx)*128*1);
+ dga = img_gray_a = img_gray_a_base = (uchar*)malloc((128+dx)*128*2);
+ drgb = img_rgb = img_rgb_base = (uchar*)malloc((128+dx)*128*3);
+ drgba = img_rgba = img_rgba_base = (uchar*)malloc((128+dx)*128*4);
for (y=0; y<128; y++) {
for (x=0; x<128; x++) {
*drgba++ = *drgb++ = *dga++ = *dg++ = y<<1;
@@ -77,29 +77,29 @@ class ImageTest : public Fl_Group {
*drgba++ = *drgb++ = (127-x)<<1;
*drgba++ = *dga++ = x+y;
}
- if (DX > 0 && LX != 0) {
- memset(dg, 0,1*DX); dg += 1*DX;
- memset(dga, 0,2*DX); dga += 2*DX;
- memset(drgb, 0,3*DX); drgb += 3*DX;
- memset(drgba,0,4*DX); drgba += 4*DX;
+ if (dx > 0 && lx != 0) {
+ memset(dg, 0,1*dx); dg += 1*dx;
+ memset(dga, 0,2*dx); dga += 2*dx;
+ memset(drgb, 0,3*dx); drgb += 3*dx;
+ memset(drgba,0,4*dx); drgba += 4*dx;
}
}
- if (LX<0) {
- img_gray += 127*(128+DX);
- img_gray_a += 127*(128+DX)*2;
- img_rgb += 127*(128+DX)*3;
- img_rgba += 127*(128+DX)*4;
+ if (lx<0) {
+ img_gray += 127*(128+dx);
+ img_gray_a += 127*(128+dx)*2;
+ img_rgb += 127*(128+dx)*3;
+ img_rgba += 127*(128+dx)*4;
}
- if (FLIPH && !IMG ) {
+ if (flip_h && !img ) {
img_gray += 127;
img_gray_a += 127*2;
img_rgb += 127*3;
img_rgba += 127*4;
}
- i_g = new Fl_RGB_Image (img_gray ,128,128,1,LX*(128+DX));
- i_ga = new Fl_RGB_Image (img_gray_a,128,128,2,LX*(128+DX)*2);
- i_rgb = new Fl_RGB_Image (img_rgb, 128,128,3,LX*(128+DX)*3);
- i_rgba = new Fl_RGB_Image (img_rgba, 128,128,4,LX*(128+DX)*4);
+ i_g = new Fl_RGB_Image (img_gray ,128,128,1,lx*(128+dx));
+ i_ga = new Fl_RGB_Image (img_gray_a,128,128,2,lx*(128+dx)*2);
+ i_rgb = new Fl_RGB_Image (img_rgb, 128,128,3,lx*(128+dx)*3);
+ i_rgba = new Fl_RGB_Image (img_rgba, 128,128,4,lx*(128+dx)*4);
} // build_imgs method ends
void free_images() {
@@ -114,16 +114,16 @@ class ImageTest : public Fl_Group {
} // end of free_images method
static void refresh_imgs_CB(Fl_Widget*,void *data) {
- ImageTest *it = (ImageTest*)data;
+ Ut_Image_Test* it = (Ut_Image_Test*)data;
it->free_images(); // release the previous images
// determine the state for the next images
- CB = it->ck_CB->value();
- IMG = it->ck_IMG->value();
- FLIPH = it->ck_FLIPH->value();
+ cb = it->ck_CB->value();
+ img = it->ck_IMG->value();
+ flip_h = it->ck_FLIPH->value();
// read the LX state radio buttons
- if (it->rb_LXp1->value()) { LX = 1; }
- else if (it->rb_LXm1->value()) { LX = (-1); }
- else { LX = 0; }
+ if (it->rb_LXp1->value()) { lx = 1; }
+ else if (it->rb_LXm1->value()) { lx = (-1); }
+ else { lx = 0; }
// construct the next images
build_imgs();
it->redraw();
@@ -132,7 +132,7 @@ class ImageTest : public Fl_Group {
public:
static Fl_Widget *create() {
build_imgs();
- return new ImageTest(TESTAREA_X, TESTAREA_Y, TESTAREA_W, TESTAREA_H);
+ return new Ut_Image_Test(UT_TESTAREA_X, UT_TESTAREA_Y, UT_TESTAREA_W, UT_TESTAREA_H);
} // create method ends
static uchar *img_gray_base;
@@ -158,7 +158,9 @@ public:
Fl_Radio_Button *rb_LXp1;
Fl_Button *refresh;
- ImageTest(int x, int y, int w, int h) : Fl_Group(x, y, w, h) {
+ Ut_Image_Test(int x, int y, int w, int h)
+ : Fl_Group(x, y, w, h)
+ {
label("Testing Image Drawing\n\n"
"This test renders four images, two of them with a checker board\n"
"visible through the graphics. Color and gray gradients should be\n"
@@ -166,34 +168,46 @@ public:
align(FL_ALIGN_INSIDE|FL_ALIGN_BOTTOM|FL_ALIGN_LEFT|FL_ALIGN_WRAP);
box(FL_BORDER_BOX);
int cw = 90;
- int ch = 270;
+ int ch = 200;
int cx = x + w - cw - 5;
int cy = y + 10;
ctr_grp = new Fl_Group(cx, cy, cw, ch);
ck_CB = new Fl_Check_Button(cx+10, cy+10, cw-20, 30, "CB");
- ck_CB->value(CB);
+ ck_CB->callback(refresh_imgs_CB, (void*)this);
+ ck_CB->value(cb);
+ ck_CB->tooltip("1 to show the checker board background for alpha images,\n"
+ "0 otherwise");
ck_IMG = new Fl_Check_Button(cx+10, cy+40, cw-20, 30, "IMG");
- ck_IMG->value(IMG);
+ ck_IMG->callback(refresh_imgs_CB, (void*)this);
+ ck_IMG->value(img);
+ ck_IMG->tooltip("1 to use Fl_RGB_Image for drawing images with transparency,\n"
+ "0 to use fl_draw_image() instead.");
ck_FLIPH = new Fl_Check_Button(cx+10, cy+70, cw-20, 30, "FLIPH");
- ck_FLIPH->value(FLIPH);
+ ck_FLIPH->callback(refresh_imgs_CB, (void*)this);
+ ck_FLIPH->value(flip_h);
+ ck_FLIPH->tooltip("1 = Flip image horizontally (only if IMG == 0)\n"
+ "0 = Draw image normal, w/o horizontal flipping");
Fl_Group *rd_grp = new Fl_Group(cx+10, cy+100, cw-20, 90, "LX");
rb_LXp1 = new Fl_Radio_Button(cx+15, cy+105, cw-30, 20, "+1");
+ rb_LXp1->callback(refresh_imgs_CB, (void*)this);
rb_LX0 = new Fl_Radio_Button(cx+15, cy+125, cw-30, 20, "0");
+ rb_LX0->callback(refresh_imgs_CB, (void*)this);
+ rb_LX0->tooltip("0 for default: ld() = 0, i.e. ld() defaults (internally) to w()*d()\n"
+ "+1: ld() = (w() + DX) * d()\n"
+ "-1 to flip image vertically: ld() = - ((w() + DX) * d())");
rb_LXm1 = new Fl_Radio_Button(cx+15, cy+145, cw-30, 20, "-1");
+ rb_LXm1->callback(refresh_imgs_CB, (void*)this);
rb_LX0->value(1);
rd_grp->box(FL_BORDER_BOX);
rd_grp->align(FL_ALIGN_INSIDE|FL_ALIGN_BOTTOM|FL_ALIGN_CENTER);
rd_grp->end();
- refresh = new Fl_Button(cx+10, cy+ch-40, cw-20, 30, "Refresh");
- refresh->callback(refresh_imgs_CB, (void*)this);
-
ctr_grp->box(FL_BORDER_BOX);
ctr_grp->end();
end(); // make sure this ImageTest group is closed
@@ -206,15 +220,15 @@ public:
int xx = x()+10, yy = y()+10;
fl_color(FL_BLACK); fl_rect(xx, yy, 130, 130);
- if (IMG) {
+ if (img) {
i_rgb->draw(xx+1,yy+1);
}
else {
- if (!FLIPH) {
- fl_draw_image(img_rgb, xx+1, yy+1, 128, 128, 3, LX*((128+DX)*3));
+ if (!flip_h) {
+ fl_draw_image(img_rgb, xx+1, yy+1, 128, 128, 3, lx*((128+dx)*3));
}
else {
- fl_draw_image(img_rgb, xx+1, yy+1, 128, 128,-3, LX*((128+DX)*3));
+ fl_draw_image(img_rgb, xx+1, yy+1, 128, 128,-3, lx*((128+dx)*3));
}
}
fl_draw("RGB", xx+134, yy+64);
@@ -224,19 +238,19 @@ public:
xx = x()+10; yy = y()+10+134;
fl_color(FL_BLACK); fl_rect(xx, yy, 130, 130); // black frame
fl_color(FL_WHITE); fl_rectf(xx+1, yy+1, 128, 128); // white background
- if (CB) { // checker board
+ if (cb) { // checker board
fl_color(FL_BLACK); fl_rectf(xx+65, yy+1, 64, 64);
fl_color(FL_BLACK); fl_rectf(xx+1, yy+65, 64, 64);
}
- if (IMG) {
+ if (img) {
i_rgba->draw(xx+1,yy+1);
}
else {
- if (!FLIPH) {
- fl_draw_image(img_rgba, xx+1, yy+1, 128, 128, 4, LX*((128+DX)*4));
+ if (!flip_h) {
+ fl_draw_image(img_rgba, xx+1, yy+1, 128, 128, 4, lx*((128+dx)*4));
}
else {
- fl_draw_image(img_rgba, xx+1, yy+1, 128, 128,-4, LX*((128+DX)*4));
+ fl_draw_image(img_rgba, xx+1, yy+1, 128, 128,-4, lx*((128+dx)*4));
}
}
fl_color(FL_BLACK); fl_draw("RGBA", xx+134, yy+64);
@@ -245,15 +259,15 @@ public:
xx = x()+10+200; yy = y()+10;
fl_color(FL_BLACK); fl_rect(xx, yy, 130, 130);
- if (IMG) {
+ if (img) {
i_g->draw(xx+1,yy+1);
}
else {
- if (!FLIPH) {
- fl_draw_image(img_gray, xx+1, yy+1, 128, 128, 1, LX*((128+DX)*1));
+ if (!flip_h) {
+ fl_draw_image(img_gray, xx+1, yy+1, 128, 128, 1, lx*((128+dx)*1));
}
else {
- fl_draw_image(img_gray, xx+1, yy+1, 128, 128,-1, LX*((128+DX)*1));
+ fl_draw_image(img_gray, xx+1, yy+1, 128, 128,-1, lx*((128+dx)*1));
}
}
fl_draw("Gray", xx+134, yy+64);
@@ -263,36 +277,36 @@ public:
xx = x()+10+200; yy = y()+10+134;
fl_color(FL_BLACK); fl_rect(xx, yy, 130, 130); // black frame
fl_color(FL_WHITE); fl_rectf(xx+1, yy+1, 128, 128); // white background
- if (CB) { // checker board
+ if (cb) { // checker board
fl_color(FL_BLACK); fl_rectf(xx+65, yy+1, 64, 64);
fl_color(FL_BLACK); fl_rectf(xx+1, yy+65, 64, 64);
}
- if (IMG) {
+ if (img) {
i_ga->draw(xx+1,yy+1);
}
else {
- if (!FLIPH) {
- fl_draw_image(img_gray_a, xx+1, yy+1, 128, 128, 2, LX*((128+DX)*2));
+ if (!flip_h) {
+ fl_draw_image(img_gray_a, xx+1, yy+1, 128, 128, 2, lx*((128+dx)*2));
}
else {
- fl_draw_image(img_gray_a, xx+1, yy+1, 128, 128,-2, LX*((128+DX)*2));
+ fl_draw_image(img_gray_a, xx+1, yy+1, 128, 128,-2, lx*((128+dx)*2));
}
}
fl_color(FL_BLACK); fl_draw("Gray+Alpha", xx+134, yy+64);
} // draw method end
};
-uchar *ImageTest::img_gray_base = 0;
-uchar *ImageTest::img_gray_a_base = 0;
-uchar *ImageTest::img_rgb_base = 0;
-uchar *ImageTest::img_rgba_base = 0;
-uchar *ImageTest::img_gray = 0;
-uchar *ImageTest::img_gray_a = 0;
-uchar *ImageTest::img_rgb = 0;
-uchar *ImageTest::img_rgba = 0;
-Fl_RGB_Image *ImageTest::i_g = 0;
-Fl_RGB_Image *ImageTest::i_ga = 0;
-Fl_RGB_Image *ImageTest::i_rgb = 0;
-Fl_RGB_Image *ImageTest::i_rgba = 0;
-
-UnitTest images(kTestImages, "Drawing Images", ImageTest::create);
+uchar *Ut_Image_Test::img_gray_base = 0;
+uchar *Ut_Image_Test::img_gray_a_base = 0;
+uchar *Ut_Image_Test::img_rgb_base = 0;
+uchar *Ut_Image_Test::img_rgba_base = 0;
+uchar *Ut_Image_Test::img_gray = 0;
+uchar *Ut_Image_Test::img_gray_a = 0;
+uchar *Ut_Image_Test::img_rgb = 0;
+uchar *Ut_Image_Test::img_rgba = 0;
+Fl_RGB_Image *Ut_Image_Test::i_g = 0;
+Fl_RGB_Image *Ut_Image_Test::i_ga = 0;
+Fl_RGB_Image *Ut_Image_Test::i_rgb = 0;
+Fl_RGB_Image *Ut_Image_Test::i_rgba = 0;
+
+UnitTest images(UT_TEST_IMAGES, "Drawing Images", Ut_Image_Test::create);
generated by cgit v1.2.3 (git 2.25.1) at 2026-02-08 09:25:46 +0000