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Code Issues 123 Wiki Activity

imgui user interface implementation

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This commit is contained in:
tmj-fstate
2018-08-30 20:41:14 +02:00
parent 8b285834b0
commit 0c062e9041
25 changed files with 1563 additions and 1118 deletions
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194
uilayer.cpp
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@@ -27,61 +27,107 @@ http://mozilla.org/MPL/2.0/.
#include "utilities.h"
#include "logs.h"
#include "imgui_impl_glfw.h"
#include "imgui_impl_opengl2.h"
extern "C"
{
GLFWAPI HWND glfwGetWin32Window( GLFWwindow* window ); //m7todo: potrzebne do directsound
}
GLFWwindow * ui_layer::m_window { nullptr };
ImGuiIO *ui_layer::m_imguiio { nullptr };
GLint ui_layer::m_textureunit { GL_TEXTURE0 };
GLuint ui_layer::m_fontbase { (GLuint)-1 }; // numer DL dla znaków w napisach
bool ui_layer::m_cursorvisible { true };
ui_layer::~ui_layer() {
/*
// this should be invoked manually, or we risk trying to delete the lists after the context is gone
if( m_fontbase != -1 )
::glDeleteLists( m_fontbase, 96 );
*/
ui_panel::ui_panel( std::string const Name, bool const Isopen )
: name( Name ), is_open( Isopen )
{}
void
ui_panel::render() {
if( false == is_open ) { return; }
if( true == text_lines.empty() ) { return; }
auto flags =
ImGuiWindowFlags_NoFocusOnAppearing
| ImGuiWindowFlags_NoCollapse
| ( size.x > 0 ? ImGuiWindowFlags_NoResize : 0 );
if( size.x > 0 ) {
ImGui::SetNextWindowSize( ImVec2( size.x, size.y ) );
}
if( size_min.x > 0 ) {
ImGui::SetNextWindowSizeConstraints( ImVec2( size_min.x, size_min.y ), ImVec2( size_max.x, size_max.y ) );
}
if( true == ImGui::Begin( name.c_str(), &is_open, flags ) ) {
for( auto const &line : text_lines ) {
ImGui::TextColored( ImVec4( line.color.r, line.color.g, line.color.b, line.color.a ), line.data.c_str() );
}
}
ImGui::End();
}
ui_layer::~ui_layer() {}
bool
ui_layer::init( GLFWwindow *Window ) {
m_window = Window;
HFONT font; // Windows Font ID
m_fontbase = ::glGenLists(96); // storage for 96 characters
HDC hDC = ::GetDC( glfwGetWin32Window( m_window ) );
font = ::CreateFont( -MulDiv( 10, ::GetDeviceCaps( hDC, LOGPIXELSY ), 72 ), // height of font
0, // width of font
0, // angle of escapement
0, // orientation angle
(Global.bGlutFont ? FW_MEDIUM : FW_HEAVY), // font weight
FALSE, // italic
FALSE, // underline
FALSE, // strikeout
DEFAULT_CHARSET, // character set identifier
OUT_DEFAULT_PRECIS, // output precision
CLIP_DEFAULT_PRECIS, // clipping precision
(Global.bGlutFont ? CLEARTYPE_QUALITY : PROOF_QUALITY), // output quality
DEFAULT_PITCH | FF_DONTCARE, // family and pitch
"Lucida Console"); // font name
::SelectObject(hDC, font); // selects the font we want
if( TRUE == ::wglUseFontBitmaps( hDC, 32, 96, m_fontbase ) ) {
// builds 96 characters starting at character 32
WriteLog( "Display Lists font used" ); //+AnsiString(glGetError())
WriteLog( "Font init OK" ); //+AnsiString(glGetError())
Global.DLFont = true;
return true;
}
else {
ErrorLog( "Font init failed" );
// return false;
// NOTE: we report success anyway, given some cards can't produce fonts in this manner
Global.DLFont = false;
return true;
}
IMGUI_CHECKVERSION();
ImGui::CreateContext();
m_imguiio = &ImGui::GetIO();
// m_imguiio->Fonts->AddFontFromFileTTF( "c:/windows/fonts/lucon.ttf", 13.0f );
ImGui_ImplGlfw_InitForOpenGL( m_window, false );
ImGui_ImplOpenGL2_Init();
init_colors();
return true;
}
void
ui_layer::init_colors() {
// configure ui colours
auto *style = &ImGui::GetStyle();
auto *colors = style->Colors;
auto const background { ImVec4( 38.0f / 255.0f, 38.0f / 255.0f, 38.0f / 255.0f, 0.65f ) };
auto const accent { ImVec4( 44.0f / 255.0f, 88.0f / 255.0f, 72.0f / 255.0f, 0.75f ) };
auto const itembase { ImVec4( accent.x, accent.y, accent.z, 0.35f ) };
auto const itemhover { ImVec4( accent.x, accent.y, accent.z, 0.65f ) };
auto const itemactive { ImVec4( accent.x, accent.y, accent.z, 0.95f ) };
colors[ ImGuiCol_WindowBg ] = background;
colors[ ImGuiCol_PopupBg ] = background;
colors[ ImGuiCol_FrameBg ] = itembase;
colors[ ImGuiCol_FrameBgHovered ] = itemhover;
colors[ ImGuiCol_FrameBgActive ] = itemactive;
colors[ ImGuiCol_TitleBg ] = background;
colors[ ImGuiCol_TitleBgActive ] = background;
colors[ ImGuiCol_TitleBgCollapsed ] = background;
colors[ ImGuiCol_CheckMark ] = colors[ ImGuiCol_Text ];
colors[ ImGuiCol_Button ] = itembase;
colors[ ImGuiCol_ButtonHovered ] = itemhover;
colors[ ImGuiCol_ButtonActive ] = itemactive;
colors[ ImGuiCol_Header ] = itembase;
colors[ ImGuiCol_HeaderHovered ] = itemhover;
colors[ ImGuiCol_HeaderActive ] = itemactive;
colors[ ImGuiCol_ResizeGrip ] = itembase;
colors[ ImGuiCol_ResizeGripHovered ] = itemhover;
colors[ ImGuiCol_ResizeGripActive ] = itemactive;
}
void
ui_layer::shutdown() {
ImGui_ImplOpenGL2_Shutdown();
ImGui_ImplGlfw_Shutdown();
ImGui::DestroyContext();
}
bool
@@ -90,9 +136,18 @@ ui_layer::on_key( int const Key, int const Action ) {
return false;
}
void
ui_layer::update() {
for( auto *panel : m_panels ) {
panel->update();
}
}
void
ui_layer::render() {
// legacy ui code
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho( 0, std::max( 1, Global.iWindowWidth ), std::max( 1, Global.iWindowHeight ), 0, -1, 1 );
@@ -120,10 +175,27 @@ ui_layer::render() {
glDisable( GL_BLEND );
glPopAttrib();
// imgui ui code
::glPushClientAttrib( GL_CLIENT_VERTEX_ARRAY_BIT );
::glClientActiveTexture( m_textureunit );
::glBindBuffer( GL_ARRAY_BUFFER, 0 );
ImGui_ImplOpenGL2_NewFrame();
ImGui_ImplGlfw_NewFrame();
ImGui::NewFrame();
render_panels();
render_tooltip();
// template method implementation
render_();
glPopAttrib();
ImGui::Render();
ImGui_ImplOpenGL2_RenderDrawData( ImGui::GetDrawData() );
::glPopClientAttrib();
}
void
@@ -207,30 +279,14 @@ ui_layer::render_progress() {
::glRasterPos2f(
( 0.5f * ( Global.iWindowWidth - width ) + origin.x * heightratio ) + ( ( size.x * heightratio - textwidth ) * 0.5f * heightratio ),
( 0.5f * ( Global.iWindowHeight - height ) + origin.y * heightratio ) + ( charsize ) + ( ( size.y * heightratio - textheight ) * 0.5f * heightratio ) );
print( m_progresstext );
}
}
void
ui_layer::render_panels() {
if( m_panels.empty() ) { return; }
float const width = std::min( 4.f / 3.f, static_cast<float>(Global.iWindowWidth) / std::max( 1, Global.iWindowHeight ) ) * Global.iWindowHeight;
float const height = Global.iWindowHeight / 768.f;
for( auto const &panel : m_panels ) {
int lineidx = 0;
for( auto const &line : panel->text_lines ) {
::glColor4fv( glm::value_ptr( line.color ) );
::glRasterPos2f(
0.5f * ( Global.iWindowWidth - width ) + panel->origin_x * height,
panel->origin_y * height + 20.f * lineidx );
print( line.data );
++lineidx;
}
for( auto *panel : m_panels ) {
panel->render();
}
}
@@ -240,12 +296,7 @@ ui_layer::render_tooltip() {
if( m_tooltip.empty() ) { return; }
if( false == m_cursorvisible ) { return; }
glm::dvec2 mousepos;
glfwGetCursorPos( m_window, &mousepos.x, &mousepos.y );
::glColor4fv( glm::value_ptr( colors::white ) );
::glRasterPos2f( mousepos.x + 20.0f, mousepos.y + 25.0f );
print( m_tooltip );
ImGui::SetTooltip( m_tooltip.c_str() );
}
void
@@ -295,21 +346,6 @@ ui_layer::render_texture() {
}
}
void
ui_layer::print( std::string const &Text )
{
if( (false == Global.DLFont)
|| (true == Text.empty()) )
return;
::glPushAttrib( GL_LIST_BIT );
::glListBase( m_fontbase - 32 );
::glCallLists( Text.size(), GL_UNSIGNED_BYTE, Text.c_str() );
::glPopAttrib();
}
void
ui_layer::quad( glm::vec4 const &Coordinates, glm::vec4 const &Color ) {