/* draw a handle, for each end of a sequence strip */
static void draw_seq_handle(View2D *v2d, Sequence *seq, const float handsize_clamped, const short direction)
{
float v1[2], v2[2], v3[2], rx1 = 0, rx2 = 0; //for triangles and rect
float x1, x2, y1, y2;
char numstr[32];
unsigned int whichsel = 0;
x1 = seq->startdisp;
x2 = seq->enddisp;
y1 = seq->machine + SEQ_STRIP_OFSBOTTOM;
y2 = seq->machine + SEQ_STRIP_OFSTOP;
/* set up co-ordinates/dimensions for either left or right handle */
if (direction == SEQ_LEFTHANDLE) {
rx1 = x1;
rx2 = x1 + handsize_clamped * 0.75f;
v1[0] = x1 + handsize_clamped / 4; v1[1] = y1 + ( ((y1 + y2) / 2.0f - y1) / 2);
v2[0] = x1 + handsize_clamped / 4; v2[1] = y2 - ( ((y1 + y2) / 2.0f - y1) / 2);
v3[0] = v2[0] + handsize_clamped / 4; v3[1] = (y1 + y2) / 2.0f;
whichsel = SEQ_LEFTSEL;
}
else if (direction == SEQ_RIGHTHANDLE) {
rx1 = x2 - handsize_clamped * 0.75f;
rx2 = x2;
v1[0] = x2 - handsize_clamped / 4; v1[1] = y1 + ( ((y1 + y2) / 2.0f - y1) / 2);
v2[0] = x2 - handsize_clamped / 4; v2[1] = y2 - ( ((y1 + y2) / 2.0f - y1) / 2);
v3[0] = v2[0] - handsize_clamped / 4; v3[1] = (y1 + y2) / 2.0f;
whichsel = SEQ_RIGHTSEL;
}
/* draw! */
if (seq->type < SEQ_TYPE_EFFECT ||
BKE_sequence_effect_get_num_inputs(seq->type) == 0)
{
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
if (seq->flag & whichsel) glColor4ub(0, 0, 0, 80);
else if (seq->flag & SELECT) glColor4ub(255, 255, 255, 30);
else glColor4ub(0, 0, 0, 22);
glRectf(rx1, y1, rx2, y2);
if (seq->flag & whichsel) glColor4ub(255, 255, 255, 200);
else glColor4ub(0, 0, 0, 50);
glEnable(GL_POLYGON_SMOOTH);
glBegin(GL_TRIANGLES);
glVertex2fv(v1); glVertex2fv(v2); glVertex2fv(v3);
glEnd();
glDisable(GL_POLYGON_SMOOTH);
glDisable(GL_BLEND);
}
if ((G.moving & G_TRANSFORM_SEQ) || (seq->flag & whichsel)) {
const char col[4] = {255, 255, 255, 255};
if (direction == SEQ_LEFTHANDLE) {
BLI_snprintf(numstr, sizeof(numstr), "%d", seq->startdisp);
x1 = rx1;
y1 -= 0.45f;
}
else {
BLI_snprintf(numstr, sizeof(numstr), "%d", seq->enddisp - 1);
x1 = x2 - handsize_clamped * 0.75f;
y1 = y2 + 0.05f;
}
UI_view2d_text_cache_add(v2d, x1, y1, numstr, col);
}
}
static Sequence *rna_Sequences_new_effect(ID *id, Editing *ed, ReportList *reports,
const char *name, int type, int channel,
int frame_start, int frame_end,
Sequence *seq1, Sequence *seq2, Sequence *seq3)
{
Scene *scene = (Scene *)id;
Sequence *seq;
struct SeqEffectHandle sh;
int num_inputs = BKE_sequence_effect_get_num_inputs(type);
switch (num_inputs) {
case 0:
if (frame_end <= frame_start) {
BKE_report(reports, RPT_ERROR, "Sequences.new_effect: end frame not set");
return NULL;
}
break;
case 1:
if (seq1 == NULL) {
BKE_report(reports, RPT_ERROR, "Sequences.new_effect: effect takes 1 input sequence");
return NULL;
}
break;
case 2:
if (seq1 == NULL || seq2 == NULL) {
BKE_report(reports, RPT_ERROR, "Sequences.new_effect: effect takes 2 input sequences");
return NULL;
}
break;
case 3:
if (seq1 == NULL || seq2 == NULL || seq3 == NULL) {
BKE_report(reports, RPT_ERROR, "Sequences.new_effect: effect takes 3 input sequences");
return NULL;
}
break;
default:
BKE_reportf(reports, RPT_ERROR,
"Sequences.new_effect: effect expects more than 3 inputs (%d, should never happen!)",
num_inputs);
return NULL;
}
seq = alloc_generic_sequence(ed, name, frame_start, channel, type, NULL);
sh = BKE_sequence_get_effect(seq);
seq->seq1 = seq1;
seq->seq2 = seq2;
seq->seq3 = seq3;
sh.init(seq);
if (!seq1) { /* effect has no deps */
seq->len = 1;
BKE_sequence_tx_set_final_right(seq, frame_end);
}
seq->flag |= SEQ_USE_EFFECT_DEFAULT_FADE;
BKE_sequence_calc(scene, seq);
BKE_sequence_calc_disp(scene, seq);
WM_main_add_notifier(NC_SCENE | ND_SEQUENCER, scene);
return seq;
}
