101 lines
2.2 KiB
C++
101 lines
2.2 KiB
C++
#include "IMGUIControls.h"
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#include "Engine.h"
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#include "ControllerBase.h"
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#include "ViewBase.h"
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#include <GL/gl.h>
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#include "DrawingsGL.h"
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#include "keytable.h"
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Engine::ControllerBase *controller = NULL;
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Engine::ViewBase *view = NULL;
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namespace Engine {
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namespace GUI {
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/** \brief Checks whether the mouse is in the given rectangle */
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bool regionhit (int x, int y, int w, int h) {
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controller = EngineGetController();
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assert (controller);
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int mouse_pos[2];
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controller->GetMouseScreenPosition(mouse_pos);
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if (mouse_pos[0] < x ||
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mouse_pos[1] < y ||
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mouse_pos[0] >= x + w ||
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mouse_pos[1] >= y + h)
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return false;
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return true;
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}
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void Label (int id, const char* caption, int x, int y) {
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if (caption != NULL) {
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float width, height;
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view = EngineGetView ();
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assert (view);
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glColor3f (1., 1., 1.);
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view->DrawGLStringMeasure(caption, &width, &height);
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view->DrawGLString(x , y + height * 0.5, caption);
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}
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}
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/** \brief Draws a button at the given position
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*
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* \returns true if it was clicked
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*
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*/
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bool Button (int id, const char* caption, int x, int y, int w, int h) {
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controller = EngineGetController();
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assert (controller);
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// Check for hotness
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if (regionhit (x, y, w, h)) {
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controller->uistate.hotitem = id;
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if (controller->uistate.activeitem == 0
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&& controller->GetButtonState(MouseButtonLeft))
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controller->uistate.activeitem = id;
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}
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// Render
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glColor3f (0.2, 0.2, 0.2);
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DrawRect2D (x + 4, y + 4, w, h);
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if (controller->uistate.hotitem == id) {
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if (controller->uistate.activeitem == id) {
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glColor3f (0.8, 0.8, 0.8);
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DrawRect2D (x, y, w, h);
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} else {
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glColor3f (0.7, 0.7, 0.7);
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DrawRect2D (x, y, w, h);
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}
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} else {
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glColor3f (0.4, 0.4, 0.4);
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DrawRect2D (x, y, w, h);
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}
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// Caption
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if (caption != NULL) {
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float width, height;
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view = EngineGetView ();
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assert (view);
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glColor3f (1., 1., 1.);
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view->DrawGLStringMeasure(caption, &width, &height);
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view->DrawGLString(x + w * 0.5 - width * 0.5, y + h * 0.5 - height * 0.5, caption);
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}
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// Logic
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if (controller->GetButtonState(MouseButtonLeft) == false
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&& controller->uistate.hotitem == id
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&& controller->uistate.activeitem == id)
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return true;
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return false;
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}
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};
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};
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