1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
#include "gui.h"
#include "sequence.h"
void Slider::Draw(SDL_Renderer* renderer)
{
SDL_RenderDrawRect(renderer, &m_bounds);
SDL_RenderDrawLine(renderer, m_bounds.x, m_bounds.y + (*value * valueScaling), m_bounds.x + m_bounds.w, m_bounds.y + (*value * valueScaling));
}
bool Slider::InBounds(int x, int y)
{
SDL_Point point = { x, y };
return SDL_PointInRect(&point, &m_bounds);
}
GUI::GUI(Sequence& seq)
: m_sequence(seq)
{
int i = 0;
for (auto& step : seq.steps) {
m_sliders.emplace_back(i * 40 + 14, 60, &step.carrierFreq, 0.1f);
m_sliders.emplace_back(i * 40 + 14, 145, &step.modFreq);
m_sliders.emplace_back(i * 40 + 14, 230, &step.modDepth, 3.0f);
i++;
}
}
void GUI::OnMouseDown(int x, int y)
{
for (Slider& slider : m_sliders) {
if (slider.InBounds(x, y)) {
m_activeSlider = &slider;
m_dragStart = y;
return;
}
}
}
void GUI::OnMouseUp()
{
m_activeSlider = nullptr;
m_dragStart = 0;
}
void GUI::OnMouseMove(int x, int y)
{
if (m_activeSlider) {
*m_activeSlider->value -= (m_dragStart - y) / m_activeSlider->valueScaling;
m_dragStart = y;
if (*m_activeSlider->value < 0)
*m_activeSlider->value = 0;
}
}
void GUI::Repaint(SDL_Renderer* renderer, int currentStep)
{
SDL_Rect rect = { 10, 10, 32, 32 };
for (int i = 0; i < 8; i++) {
SDL_SetRenderDrawColor(renderer, m_sequence.steps[i].modDepth * 8, m_sequence.steps[i].modFreq * 2, m_sequence.steps[i].carrierFreq / 3, 255);
if (i == currentStep)
SDL_RenderFillRect(renderer, &rect);
else
SDL_RenderDrawRect(renderer, &rect);
rect.x += rect.w + 8;
}
SDL_SetRenderDrawColor(renderer, 127, 127, 255, 255);
for (Slider& slider : m_sliders) {
slider.Draw(renderer);
}
}
|
