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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#include <cstring> // memcpy
#include "Window.h"
#include "Gui.h"
#include "Rendering/GL/myGL.h"
#include "Rendering/GL/VAO.h"
#include "Rendering/GL/VBO.h"
#include "Rendering/GL/VertexArrayTypes.h"
#include "Rendering/Fonts/glFont.h"
namespace agui
{
Window::Window(const std::string& _title, GuiElement* parent) : GuiElement(parent), title(_title)
{
titleHeight = 0.05f;
dragging = false;
pos[0] = pos[1] = 0.2f;
size[0] = size[1] = 0.3f;
dragPos[0] = dragPos[1] = 0.0f;
GeometryChangeSelf();
}
void Window::AddChild(GuiElement* elem)
{
children.push_back(elem);
elem->SetPos(pos[0], pos[1]);
elem->SetSize(size[0], size[1] - titleHeight);
}
void Window::DrawSelf()
{
const float opacity = Opacity();
// background
gui->SetDrawMode(Gui::DrawMode::COLOR);
gui->SetColor(0.0f, 0.0f, 0.0f, opacity);
DrawBox();
// foreground
gui->SetColor(0.7f, 0.7f, 0.7f, opacity);
DrawBox(1);
// edges
gui->SetColor(1.0f, 1.0f, 1.0f, opacity);
DrawOutline();
// string content
gui->SetDrawMode(Gui::DrawMode::FONT);
font->SetTextColor(1.0f, 1.0f, 1.0f, opacity);
font->SetOutlineColor(0.0f, 0.0f, 0.0f, opacity);
font->SetTextDepth(depth);
font->glPrint(pos[0] + 0.01f, pos[1] + size[1] - titleHeight * 0.5f, 1.0f, FONT_VCENTER | FONT_SCALE | FONT_SHADOW | FONT_NORM | FONT_BUFFERED, title);
font->DrawBufferedGL4(gui->GetShader());
}
void Window::GeometryChangeSelf()
{
GuiElement::GeometryChangeSelf();
{
VA_TYPE_T vaElems[4];
for (int i = 0; i < 4; ++i) {
const bool bottom = (i & 1) == 0;
const bool right = (i & 2) == 0;
vaElems[i].p.x = pos[0] + right * size[0];
vaElems[i].p.y = pos[1] + size[1] - (!bottom) * titleHeight;
vaElems[i].p.z = depth;
vaElems[i].s = 0.0f;
vaElems[i].t = 0.0f;
}
GeometryChangeSelfRaw(1, sizeof(vaElems), vaElems);
}
}
bool Window::HandleEventSelf(const SDL_Event& ev)
{
switch (ev.type) {
case SDL_MOUSEBUTTONDOWN: {
if (MouseOver(ev.button.x, ev.button.y)) {
const float mouse[2] = {PixelToGlX(ev.button.x), PixelToGlY(ev.button.y)};
if (mouse[1] > (pos[1] + size[1] - titleHeight)) {
dragPos[0] = mouse[0] - pos[0];
dragPos[1] = mouse[1] - pos[1];
dragging = true;
return true;
};
}
} break;
case SDL_MOUSEBUTTONUP: {
if (dragging) {
dragging = false;
return true;
}
} break;
case SDL_MOUSEMOTION: {
if (dragging) {
Move(PixelToGlX(ev.motion.xrel), PixelToGlY(ev.motion.yrel) - 1);
return true;
}
} break;
case SDL_KEYDOWN: {
if (ev.key.keysym.sym == SDLK_ESCAPE) {
WantClose.emit();
return true;
}
} break;
}
return false;
}
float Window::Opacity() const
{
if (dragging)
return (GuiElement::Opacity() * 0.5f);
return GuiElement::Opacity();
}
}
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